diff options
| -rw-r--r-- | CHANGELOG | 6 | ||||
| -rw-r--r-- | MAKEALL | 11 | ||||
| -rw-r--r-- | Makefile | 31 | ||||
| -rw-r--r-- | README | 2382 | ||||
| -rw-r--r-- | board/jse/Makefile | 44 | ||||
| -rw-r--r-- | board/jse/README.txt | 48 | ||||
| -rw-r--r-- | board/jse/config.mk | 24 | ||||
| -rw-r--r-- | board/jse/flash.c | 671 | ||||
| -rw-r--r-- | board/jse/host_bridge.c | 89 | ||||
| -rw-r--r-- | board/jse/init.S | 105 | ||||
| -rw-r--r-- | board/jse/jse.c | 160 | ||||
| -rw-r--r-- | board/jse/jse_priv.h | 25 | ||||
| -rw-r--r-- | board/jse/sdram.c | 182 | ||||
| -rw-r--r-- | board/jse/u-boot.lds | 140 | ||||
| -rw-r--r-- | common/cmd_ide.c | 41 | ||||
| -rw-r--r-- | common/cmd_pcmcia.c | 139 | ||||
| -rw-r--r-- | doc/README.PXA_CF | 50 | ||||
| -rw-r--r-- | include/configs/JSE.h | 304 | ||||
| -rw-r--r-- | include/fat.h | 7 |
19 files changed, 3233 insertions, 1226 deletions
@@ -2,6 +2,12 @@ Changes for U-Boot 1.1.1: ====================================================================== +* Patch by Stephen Williams, 01 Apr 2004: + Add support for Picture Elements JSE board + +* Patch by Christian Pell, 01 Apr 2004: + Add CompactFlash support for PXA systems. + * Patches by Pantelis Antoniou, 30 Mar 2004: - add auto-complete support to the U-Boot CLI - add support for NETTA and NETPHONE boards; fix NETVIA board @@ -60,11 +60,12 @@ LIST_4xx=" \ CANBT CPCI405 CPCI4052 CPCI405AB \ CPCI440 CPCIISER4 CRAYL1 csb272 \ DASA_SIM DP405 DU405 EBONY \ - ERIC EXBITGEN HUB405 MIP405 \ - MIP405T ML2 ml300 OCOTEA \ - OCRTC ORSG PCI405 PIP405 \ - PLU405 PMC405 PPChameleonEVB VOH405 \ - W7OLMC W7OLMG WALNUT405 XPEDITE1K \ + ERIC EXBITGEN HUB405 JSE \ + MIP405 MIP405T ML2 ml300 \ + OCOTEA OCRTC ORSG PCI405 \ + PIP405 PLU405 PMC405 PPChameleonEVB \ + VOH405 W7OLMC W7OLMG WALNUT405 \ + XPEDITE1K \ " ######################################################################### @@ -203,7 +203,7 @@ unconfig: cmi_mpc5xx_config: unconfig @./mkconfig $(@:_config=) ppc mpc5xx cmi -PATI_config:unconfig +PATI_config: unconfig @./mkconfig $(@:_config=) ppc mpc5xx pati mpl ######################################################################### @@ -569,7 +569,7 @@ AR405_config: unconfig ASH405_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx ash405 esd -BUBINGA405EP_config:unconfig +BUBINGA405EP_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx bubinga405ep CANBT_config: unconfig @@ -587,7 +587,7 @@ CPCI440_config: unconfig CPCIISER4_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx cpciiser4 esd -CRAYL1_config:unconfig +CRAYL1_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx L1 cray csb272_config: unconfig @@ -602,33 +602,36 @@ DP405_config: unconfig DU405_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx du405 esd -EBONY_config:unconfig +EBONY_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx ebony -ERIC_config:unconfig +ERIC_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx eric -EXBITGEN_config:unconfig +EXBITGEN_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx exbitgen HUB405_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx hub405 esd -MIP405_config:unconfig +JSE_config: unconfig + @./mkconfig $(@:_config=) ppc ppc4xx jse + +MIP405_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx mip405 mpl -MIP405T_config:unconfig +MIP405T_config: unconfig @echo "#define CONFIG_MIP405T" >include/config.h @echo "Enable subset config for MIP405T" @./mkconfig -a MIP405 ppc ppc4xx mip405 mpl -ML2_config:unconfig +ML2_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx ml2 -ml300_config:unconfig +ml300_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx ml300 xilinx -OCOTEA_config:unconfig +OCOTEA_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx ocotea OCRTC_config \ @@ -638,7 +641,7 @@ ORSG_config: unconfig PCI405_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx pci405 esd -PIP405_config:unconfig +PIP405_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx pip405 mpl PLU405_config: unconfig @@ -673,10 +676,10 @@ W7OLMC_config \ W7OLMG_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx w7o -WALNUT405_config:unconfig +WALNUT405_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx walnut405 -XPEDITE1K_config:unconfig +XPEDITE1K_config: unconfig @./mkconfig $(@:_config=) ppc ppc4xx xpedite1k ######################################################################### @@ -246,52 +246,51 @@ The following options need to be configured: PowerPC based boards: --------------------- - CONFIG_ADCIOP, CONFIG_ICU862 CONFIG_RPXsuper, - CONFIG_ADS860, CONFIG_IP860, CONFIG_SM850, - CONFIG_AMX860, CONFIG_IPHASE4539, CONFIG_SPD823TS, - CONFIG_AR405, CONFIG_IVML24, CONFIG_SXNI855T, - CONFIG_BAB7xx, CONFIG_IVML24_128, CONFIG_Sandpoint8240, - CONFIG_CANBT, CONFIG_IVML24_256, CONFIG_Sandpoint8245, - CONFIG_CCM, CONFIG_IVMS8, CONFIG_TQM823L, - CONFIG_CPCI405, CONFIG_IVMS8_128, CONFIG_TQM850L, - CONFIG_CPCI4052, CONFIG_IVMS8_256, CONFIG_TQM855L, - CONFIG_CPCIISER4, CONFIG_LANTEC, CONFIG_TQM860L, - CONFIG_CPU86, CONFIG_MBX, CONFIG_TQM8260, - CONFIG_CRAYL1, CONFIG_MBX860T, CONFIG_TTTech, - CONFIG_CU824, CONFIG_MHPC, CONFIG_UTX8245, - CONFIG_DASA_SIM, CONFIG_MIP405, CONFIG_W7OLMC, - CONFIG_DU405, CONFIG_MOUSSE, CONFIG_W7OLMG, - CONFIG_ELPPC, CONFIG_MPC8260ADS, CONFIG_WALNUT405, - CONFIG_ERIC, CONFIG_MUSENKI, CONFIG_ZUMA, - CONFIG_ESTEEM192E, CONFIG_MVS1, CONFIG_c2mon, - CONFIG_ETX094, CONFIG_NX823, CONFIG_cogent_mpc8260, - CONFIG_EVB64260, CONFIG_OCRTC, CONFIG_cogent_mpc8xx, - CONFIG_FADS823, CONFIG_ORSG, CONFIG_ep8260, - CONFIG_FADS850SAR, CONFIG_OXC, CONFIG_gw8260, - CONFIG_FADS860T, CONFIG_PCI405, CONFIG_hermes, - CONFIG_FLAGADM, CONFIG_PCIPPC2, CONFIG_hymod, - CONFIG_FPS850L, CONFIG_PCIPPC6, CONFIG_lwmon, - CONFIG_GEN860T, CONFIG_PIP405, CONFIG_pcu_e, - CONFIG_GENIETV, CONFIG_PM826, CONFIG_ppmc8260, - CONFIG_GTH, CONFIG_RPXClassic, CONFIG_rsdproto, - CONFIG_IAD210, CONFIG_RPXlite, CONFIG_sbc8260, - CONFIG_EBONY, CONFIG_sacsng, CONFIG_FPS860L, - CONFIG_V37, CONFIG_ELPT860, CONFIG_CMI, - CONFIG_NETVIA, CONFIG_RBC823, CONFIG_ZPC1900, - CONFIG_MPC8540ADS, CONFIG_MPC8560ADS, CONFIG_QS850, - CONFIG_QS823, CONFIG_QS860T, CONFIG_DB64360, - CONFIG_DB64460, CONFIG_DUET_ADS CONFIG_NETTA - CONFIG_NETPHONE + CONFIG_ADCIOP, CONFIG_ADS860, CONFIG_AMX860, + CONFIG_AR405, CONFIG_BAB7xx, CONFIG_c2mon, + CONFIG_CANBT, CONFIG_CCM, CONFIG_CMI, + CONFIG_cogent_mpc8260, CONFIG_cogent_mpc8xx, CONFIG_CPCI405, + CONFIG_CPCI4052, CONFIG_CPCIISER4, CONFIG_CPU86, + CONFIG_CRAYL1, CONFIG_CU824, CONFIG_DASA_SIM, + CONFIG_DB64360, CONFIG_DB64460, CONFIG_DU405, + CONFIG_DUET_ADS, CONFIG_EBONY, CONFIG_ELPPC, + CONFIG_ELPT860, CONFIG_ep8260, CONFIG_ERIC, + CONFIG_ESTEEM192E, CONFIG_ETX094, CONFIG_EVB64260, + CONFIG_FADS823, CONFIG_FADS850SAR, CONFIG_FADS860T, + CONFIG_FLAGADM, CONFIG_FPS850L, CONFIG_FPS860L, + CONFIG_GEN860T, CONFIG_GENIETV, CONFIG_GTH, + CONFIG_gw8260, CONFIG_hermes, CONFIG_hymod, + CONFIG_IAD210, CONFIG_ICU862, CONFIG_IP860, + CONFIG_IPHASE4539, CONFIG_IVML24, CONFIG_IVML24_128, + CONFIG_IVML24_256, CONFIG_IVMS8, CONFIG_IVMS8_128, + CONFIG_IVMS8_256, CONFIG_JSE, CONFIG_LANTEC, + CONFIG_lwmon, CONFIG_MBX, CONFIG_MBX860T, + CONFIG_MHPC, CONFIG_MIP405, CONFIG_MOUSSE, + CONFIG_MPC8260ADS, CONFIG_MPC8540ADS, CONFIG_MPC8560ADS, + CONFIG_MUSENKI, CONFIG_MVS1, CONFIG_NETPHONE, + CONFIG_NETTA, CONFIG_NETVIA, CONFIG_NX823, + CONFIG_OCRTC, CONFIG_ORSG, CONFIG_OXC, + CONFIG_PCI405, CONFIG_PCIPPC2, CONFIG_PCIPPC6, + CONFIG_pcu_e, CONFIG_PIP405, CONFIG_PM826, + CONFIG_ppmc8260, CONFIG_QS823, CONFIG_QS850, + CONFIG_QS860T, CONFIG_RBC823, CONFIG_RPXClassic, + CONFIG_RPXlite, CONFIG_RPXsuper, CONFIG_rsdproto, + CONFIG_sacsng, CONFIG_Sandpoint8240, CONFIG_Sandpoint8245, + CONFIG_sbc8260, CONFIG_SM850, CONFIG_SPD823TS, + CONFIG_SXNI855T, CONFIG_TQM823L, CONFIG_TQM8260, + CONFIG_TQM850L, CONFIG_TQM855L, CONFIG_TQM860L, + CONFIG_TTTech, CONFIG_UTX8245, CONFIG_V37, + CONFIG_W7OLMC, CONFIG_W7OLMG, CONFIG_WALNUT405, + CONFIG_ZPC1900, CONFIG_ZUMA, ARM based boards: ----------------- - CONFIG_HHP_CRADLE, CONFIG_DNP1110, CONFIG_EP7312, - CONFIG_IMPA7, CONFIG_LART, CONFIG_LUBBOCK, - CONFIG_INNOVATOROMAP1510, CONFIG_INNOVATOROMAP1610, - CONFIG_H2_OMAP1610, CONFIG_SHANNON, CONFIG_SMDK2400, - CONFIG_SMDK2410, CONFIG_TRAB, CONFIG_VCMA9, - CONFIG_AT91RM9200DK + CONFIG_AT91RM9200DK, CONFIG_DNP1110, CONFIG_EP7312, + CONFIG_H2_OMAP1610, CONFIG_HHP_CRADLE, CONFIG_IMPA7, + CONFIG_INNOVATOROMAP1510, CONFIG_INNOVATOROMAP1610, CONFIG_LART, + CONFIG_LUBBOCK, CONFIG_SHANNON, CONFIG_SMDK2400, + CONFIG_SMDK2410, CONFIG_TRAB, CONFIG_VCMA9, - CPU Module Type: (if CONFIG_COGENT is defined) @@ -1971,1271 +1970,1272 @@ is done by typing: where "NAME_config" is the name of one of the existing configurations; the following names are supported: - ADCIOP_config GTH_config TQM850L_config - ADS860_config IP860_config TQM855L_config - AR405_config IVML24_config TQM860L_config - CANBT_config IVMS8_config WALNUT405_config - CPCI405_config LANTEC_config cogent_common_config - CPCIISER4_config MBX_config cogent_mpc8260_config - CU824_config MBX860T_config cogent_mpc8xx_config - ESTEEM192E_config RPXlite_config hermes_config - ETX094_config RPXsuper_config hymod_config - FADS823_config SM850_config lwmon_config - FADS850SAR_config SPD823TS_config pcu_e_config - FADS860T_config SXNI855T_config rsdproto_config - FPS850L_config Sandpoint8240_config sbc8260_config - GENIETV_config TQM823L_config PIP405_config - GEN860T_config EBONY_config FPS860L_config - ELPT860_config cmi_mpc5xx_config NETVIA_config - at91rm9200dk_config omap1510inn_config MPC8260ADS_config - omap1610inn_config ZPC1900_config MPC8540ADS_config - MPC8560ADS_config QS850_config QS823_config - QS860T_config DUET_ADS_config omap1610h2_config - -Note: for some board special configuration names may exist; check if - additional information is available from the board vendor; for - instance, the TQM8xxL systems run normally at 50 MHz and use a - SCC for 10baseT ethernet; there are also systems with 80 MHz - CPU clock, and an optional Fast Ethernet module is available - for CPU's with FEC. You can select such additional "features" - when chosing the configuration, i. e. - - make TQM860L_config - - will configure for a plain TQM860L, i. e. 50MHz, no FEC - - make TQM860L_FEC_config - - will configure for a TQM860L at 50MHz with FEC for ethernet - - make TQM860L_80MHz_config - - will configure for a TQM860L at 80 MHz, with normal 10baseT - interface - - make TQM860L_FEC_80MHz_config - - will configure for a TQM860L at 80 MHz with FEC for ethernet - - make TQM823L_LCD_config - - will configure for a TQM823L with U-Boot console on LCD - - make TQM823L_LCD_80MHz_config - - will configure for a TQM823L at 80 MHz with U-Boot console on LCD - - etc. - - -Finally, type "make all", and you should get some working U-Boot -images ready for download to / installation on your system: - -- "u-boot.bin" is a raw binary image -- "u-boot" is an image in ELF binary format -- "u-boot.srec" is in Motorola S-Record format - - -Please be aware that the Makefiles assume you are using GNU make, so -for instance on NetBSD you might need to use "gmake" instead of -native "make". - - -If the system board that you have is not listed, then you will need -to port U-Boot to your hardware platform. To do this, follow these -steps: - -1. Add a new configuration option for your board to the toplevel - "Makefile" and to the "MAKEALL" script, using the existing - entries as examples. Note that here and at many other places - boards and other names are listed in alphabetical sort order. Please - keep this order. -2. Create a new directory to hold your board specific code. Add any - files you need. In your board directory, you will need at least - the "Makefile", a "<board>.c", "flash.c" and "u-boot.lds". -3. Create a new configuration file "include/configs/<board>.h" for - your board -3. If you're porting U-Boot to a new CPU, then also create a new - directory to hold your CPU specific code. Add any files you need. -4. Run "make <board>_config" with your new name. -5. Type "make", and you should get a working "u-boot.srec" file - to be installed on your target system. -6. Debug and solve any problems that might arise. - [Of course, this last step is much harder than it sounds.] - - -Testing of U-Boot Modifications, Ports to New Hardware, etc.: -============================================================== - -If you have modified U-Boot sources (for instance added a new board -or support for new devices, a new CPU, etc.) you are expected to -provide feedback to the other developers. The feedback normally takes -the form of a "patch", i. e. a context diff against a certain (latest -official or latest in CVS) version of U-Boot sources. - -But before you submit such a patch, please verify that your modifi- -cation did not break existing code. At least make sure that *ALL* of -the supported boards compile WITHOUT ANY compiler warnings. To do so, -just run the "MAKEALL" script, which will configure and build U-Boot -for ALL supported system. Be warned, this will take a while. You can -select which (cross) compiler to use by passing a `CROSS_COMPILE' -environment variable to the script, i. e. to use the cross tools from -MontaVista's Hard Hat Linux you can type - - CROSS_COMPILE=ppc_8xx- MAKEALL - -or to build on a native PowerPC system you can type - - CROSS_COMPILE=' ' MAKEALL - -See also "U-Boot Porting Guide" below. - - -Monitor Commands - Overview: -============================ - -go - start application at address 'addr' -run - run commands in an environment variable -bootm - boot application image from memory -bootp - boot image via network using BootP/TFTP protocol -tftpboot- boot image via network using TFTP protocol - and env variables "ipaddr" and "serverip" - (and eventually "gatewayip") -rarpboot- boot image via network using RARP/TFTP protocol -diskboot- boot from IDE devicebootd - boot default, i.e., run 'bootcmd' -loads - load S-Record file over serial line -loadb - load binary file over serial line (kermit mode) -md - memory display -mm - memory modify (auto-incrementing) -nm - memory modify (constant address) -mw - memory write (fill) -cp - memory copy -cmp - memory compare -crc32 - checksum calculation -imd - i2c memory display -imm - i2c memory modify (auto-incrementing) -inm - i2c memory modify (constant address) -imw - i2c memory write (fill) -icrc32 - i2c checksum calculation -iprobe - probe to discover valid I2C chip addresses -iloop - infinite loop on address range -isdram - print SDRAM configuration information -sspi - SPI utility commands -base - print or set address offset -printenv- print environment variables -setenv - set environment variables -saveenv - save environment variables to persistent storage -protect - enable or disable FLASH write protection -erase - erase FLASH memory -flinfo - print FLASH memory information -bdinfo - print Board Info structure -iminfo - print header information for application image -coninfo - print console devices and informations -ide - IDE sub-system -loop - infinite loop on address range -mtest - simple RAM test -icache - enable or disable instruction cache -dcache - enable or disable data cache -reset - Perform RESET of the CPU -echo - echo args to console -version - print monitor version -help - print online help -? - alias for 'help' - - -Monitor Commands - Detailed Description: -======================================== - -TODO. - -For now: just type "help <command>". - - -Environment Variables: -====================== - -U-Boot supports user configuration using Environment Variables which -can be made persistent by saving to Flash memory. - -Environment Variables are set using "setenv", printed using -"printenv", and saved to Flash using "saveenv". Using "setenv" -without a value can be used to delete a variable from the -environment. As long as you don't save the environment you are -working with an in-memory copy. In case the Flash area containing the -environment is erased by accident, a default environment is provided. - -Some configuration options can be set using Environment Variables: - - baudrate - see CONFIG_BAUDRATE - - bootdelay - see CONFIG_BOOTDELAY + ADCIOP_config ADS860_config AR405_config + at91rm9200dk_config CANBT_config cmi_mpc5xx_config + cogent_common_config cogent_mpc8260_config cogent_mpc8xx_config + CPCI405_config CPCIISER4_config CU824_config + DUET_ADS_config EBONY_config ELPT860_config + ESTEEM192E_config ETX094_config FADS823_config + FADS850SAR_config FADS860T_config FPS850L_config + FPS860L_config GEN860T_config GENIETV_config + GTH_config hermes_config hymod_config + IP860_config IVML24_config IVMS8_config + JSE_config LANTEC_config lwmon_config + MBX860T_config MBX_config MPC8260ADS_config + MPC8540ADS_config MPC8560ADS_config NETVIA_config + omap1510inn_config omap1610h2_config omap1610inn_config + pcu_e_config PIP405_config QS823_config + QS850_config QS860T_config RPXlite_config + RPXsuper_config rsdproto_config Sandpoint8240_config + sbc8260_config SM850_config SPD823TS_config + SXNI855T_config TQM823L_config TQM850L_config + TQM855L_config TQM860L_config WALNUT405_config + ZPC1900_config + + Note: for some board special configuration names may exist; check if + additional information is available from the board vendor; for + instance, the TQM8xxL systems run normally at 50 MHz and use a + SCC for 10baseT ethernet; there are also systems with 80 MHz + CPU clock, and an optional Fast Ethernet module is available + for CPU's with FEC. You can select such additional "features" + when chosing the configuration, i. e. + + make TQM860L_config + - will configure for a plain TQM860L, i. e. 50MHz, no FEC + + make TQM860L_FEC_config + - will configure for a TQM860L at 50MHz with FEC for ethernet + + make TQM860L_80MHz_config + - will configure for a TQM860L at 80 MHz, with normal 10baseT + interface + + make TQM860L_FEC_80MHz_config + - will configure for a TQM860L at 80 MHz with FEC for ethernet + + make TQM823L_LCD_config + - will configure for a TQM823L with U-Boot console on LCD + + make TQM823L_LCD_80MHz_config + - will configure for a TQM823L at 80 MHz with U-Boot console on LCD + + etc. + + + Finally, type "make all", and you should get some working U-Boot + images ready for download to / installation on your system: + + - "u-boot.bin" is a raw binary image + - "u-boot" is an image in ELF binary format + - "u-boot.srec" is in Motorola S-Record format + + + Please be aware that the Makefiles assume you are using GNU make, so + for instance on NetBSD you might need to use "gmake" instead of + native "make". + + + If the system board that you have is not listed, then you will need + to port U-Boot to your hardware platform. To do this, follow these + steps: + + 1. Add a new configuration option for your board to the toplevel + "Makefile" and to the "MAKEALL" script, using the existing + entries as examples. Note that here and at many other places + boards and other names are listed in alphabetical sort order. Please + keep this order. + 2. Create a new directory to hold your board specific code. Add any + files you need. In your board directory, you will need at least + the "Makefile", a "<board>.c", "flash.c" and "u-boot.lds". + 3. Create a new configuration file "include/configs/<board>.h" for + your board + 3. If you're porting U-Boot to a new CPU, then also create a new + directory to hold your CPU specific code. Add any files you need. + 4. Run "make <board>_config" with your new name. + 5. Type "make", and you should get a working "u-boot.srec" file + to be installed on your target system. + 6. Debug and solve any problems that might arise. + [Of course, this last step is much harder than it sounds.] + + + Testing of U-Boot Modifications, Ports to New Hardware, etc.: + ============================================================== + + If you have modified U-Boot sources (for instance added a new board + or support for new devices, a new CPU, etc.) you are expected to + provide feedback to the other developers. The feedback normally takes + the form of a "patch", i. e. a context diff against a certain (latest + official or latest in CVS) version of U-Boot sources. + + But before you submit such a patch, please verify that your modifi- + cation did not break existing code. At least make sure that *ALL* of + the supported boards compile WITHOUT ANY compiler warnings. To do so, + just run the "MAKEALL" script, which will configure and build U-Boot + for ALL supported system. Be warned, this will take a while. You can + select which (cross) compiler to use by passing a `CROSS_COMPILE' + environment variable to the script, i. e. to use the cross tools from + MontaVista's Hard Hat Linux you can type + + CROSS_COMPILE=ppc_8xx- MAKEALL + + or to build on a native PowerPC system you can type + + CROSS_COMPILE=' ' MAKEALL + + See also "U-Boot Porting Guide" below. + + + Monitor Commands - Overview: + ============================ + + go - start application at address 'addr' + run - run commands in an environment variable + bootm - boot application image from memory + bootp - boot image via network using BootP/TFTP protocol + tftpboot- boot image via network using TFTP protocol + and env variables "ipaddr" and "serverip" + (and eventually "gatewayip") + rarpboot- boot image via network using RARP/TFTP protocol + diskboot- boot from IDE devicebootd - boot default, i.e., run 'bootcmd' + loads - load S-Record file over serial line + loadb - load binary file over serial line (kermit mode) + md - memory display + mm - memory modify (auto-incrementing) + nm - memory modify (constant address) + mw - memory write (fill) + cp - memory copy + cmp - memory compare + crc32 - checksum calculation + imd - i2c memory display + imm - i2c memory modify (auto-incrementing) + inm - i2c memory modify (constant address) + imw - i2c memory write (fill) + icrc32 - i2c checksum calculation + iprobe - probe to discover valid I2C chip addresses + iloop - infinite loop on address range + isdram - print SDRAM configuration information + sspi - SPI utility commands + base - print or set address offset + printenv- print environment variables + setenv - set environment variables + saveenv - save environment variables to persistent storage + protect - enable or disable FLASH write protection + erase - erase FLASH memory + flinfo - print FLASH memory information + bdinfo - print Board Info structure + iminfo - print header information for application image + coninfo - print console devices and informations + ide - IDE sub-system + loop - infinite loop on address range + mtest - simple RAM test + icache - enable or disable instruction cache + dcache - enable or disable data cache + reset - Perform RESET of the CPU + echo - echo args to console + version - print monitor version + help - print online help + ? - alias for 'help' + + + Monitor Commands - Detailed Description: + ======================================== + + TODO. + + For now: just type "help <command>". + + + Environment Variables: + ====================== + + U-Boot supports user configuration using Environment Variables which + can be made persistent by saving to Flash memory. + + Environment Variables are set using "setenv", printed using + "printenv", and saved to Flash using "saveenv". Using "setenv" + without a value can be used to delete a variable from the + environment. As long as you don't save the environment you are + working with an in-memory copy. In case the Flash area containing the + environment is erased by accident, a default environment is provided. + + Some configuration options can be set using Environment Variables: + + baudrate - see CONFIG_BAUDRATE + + bootdelay - see CONFIG_BOOTDELAY + + bootcmd - see CONFIG_BOOTCOMMAND + + bootargs - Boot arguments when booting an RTOS image + + bootfile - Name of the image to load with TFTP + + autoload - if set to "no" (any string beginning with 'n'), + "bootp" will just load perform a lookup of the + configuration from the BOOTP server, but not try to + load any image using TFTP + + autostart - if set to "yes", an image loaded using the "bootp", + "rarpboot", "tftpboot" or "diskboot" commands will + be automatically started (by internally calling + "bootm") + + If set to "no", a standalone image passed to the + "bootm" command will be copied to the load address + (and eventually uncompressed), but NOT be started. + This can be used to load and uncompress arbitrary + data. + + initrd_high - restrict positioning of initrd images: + If this variable is not set, initrd images will be + copied to the highest possible address in RAM; this + is usually what you want since it allows for + maximum initrd size. If for some reason you want to + make sure that the initrd image is loaded below the + CFG_BOOTMAPSZ limit, you can set this environment + variable to a value of "no" or "off" or "0". + Alternatively, you can set it to a maximum upper + address to use (U-Boot will still check that it + does not overwrite the U-Boot stack and data). + + For instance, when you have a system with 16 MB + RAM, and want to reserve 4 MB from use by Linux, + you can do this by adding "mem=12M" to the value of + the "bootargs" variable. However, now you must make + sure that the initrd image is placed in the first + 12 MB as well - this can be done with + + setenv initrd_high 00c00000 - bootcmd - see CONFIG_BOOTCOMMAND + If you set initrd_high to 0xFFFFFFFF, this is an + indication to U-Boot that all addresses are legal + for the Linux kernel, including addresses in flash + memory. In this case U-Boot will NOT COPY the + ramdisk at all. This may be useful to reduce the + boot time on your system, but requires that this + feature is supported by your Linux kernel. - bootargs - Boot arguments when booting an RTOS image + ipaddr - IP address; needed for tftpboot command - bootfile - Name of the image to load with TFTP + loadaddr - Default load address for commands like "bootp", + "rarpboot", "tftpboot", "loadb" or "diskboot" - autoload - if set to "no" (any string beginning with 'n'), - "bootp" will just load perform a lookup of the - configuration from the BOOTP server, but not try to - load any image using TFTP + loads_echo - see CONFIG_LOADS_ECHO - autostart - if set to "yes", an image loaded using the "bootp", - "rarpboot", "tftpboot" or "diskboot" commands will - be automatically started (by internally calling - "bootm") + serverip - TFTP server IP address; needed for tftpboot command - If set to "no", a standalone image passed to the - "bootm" command will be copied to the load address - (and eventually uncompressed), but NOT be started. - This can be used to load and uncompress arbitrary - data. + bootretry - see CONFIG_BOOT_RETRY_TIME - initrd_high - restrict positioning of initrd images: - If this variable is not set, initrd images will be - copied to the highest possible address in RAM; this - is usually what you want since it allows for - maximum initrd size. If for some reason you want to - make sure that the initrd image is loaded below the - CFG_BOOTMAPSZ limit, you can set this environment - variable to a value of "no" or "off" or "0". - Alternatively, you can set it to a maximum upper - address to use (U-Boot will still check that it - does not overwrite the U-Boot stack and data). + bootdelaykey - see CONFIG_AUTOBOOT_DELAY_STR - For instance, when you have a system with 16 MB - RAM, and want to reserve 4 MB from use by Linux, - you can do this by adding "mem=12M" to the value of - the "bootargs" variable. However, now you must make - sure that the initrd image is placed in the first - 12 MB as well - this can be done with + bootstopkey - see CONFIG_AUTOBOOT_STOP_STR - setenv initrd_high 00c00000 + ethprime - When CONFIG_NET_MULTI is enabled controls which + interface is used first. - If you set initrd_high to 0xFFFFFFFF, this is an - indication to U-Boot that all addresses are legal - for the Linux kernel, including addresses in flash - memory. In this case U-Boot will NOT COPY the - ramdisk at all. This may be useful to reduce the - boot time on your system, but requires that this - feature is supported by your Linux kernel. + ethact - When CONFIG_NET_MULTI is enabled controls which + interface is currently active. For example you + can do the following - ipaddr - IP address; needed for tftpboot command + => setenv ethact FEC ETHERNET + => ping 192.168.0.1 # traffic sent on FEC ETHERNET + => setenv ethact SCC ETHERNET + => ping 10.0.0.1 # traffic sent on SCC ETHERNET - loadaddr - Default load address for commands like "bootp", - "rarpboot", "tftpboot", "loadb" or "diskboot" + netretry - When set to "no" each network operation will + either succeed or fail without retrying. + Useful on scripts which control the retry operation + themselves. - loads_echo - see CONFIG_LOADS_ECHO + vlan - When set to a value < 4095 the traffic over + ethernet is encapsulated/received over 802.1q + VLAN tagged frames. - serverip - TFTP server IP address; needed for tftpboot command + The following environment variables may be used and automatically + updated by the network boot commands ("bootp" and "rarpboot"), + depending the information provided by your boot server: - bootretry - see CONFIG_BOOT_RETRY_TIME + bootfile - see above + dnsip - IP address of your Domain Name Server + dnsip2 - IP address of your secondary Domain Name Server + gatewayip - IP address of the Gateway (Router) to use + hostname - Target hostname + ipaddr - see above + netmask - Subnet Mask + rootpath - Pathname of the root filesystem on the NFS server + serverip - see above - bootdelaykey - see CONFIG_AUTOBOOT_DELAY_STR - bootstopkey - see CONFIG_AUTOBOOT_STOP_STR + There are two special Environment Variables: - ethprime - When CONFIG_NET_MULTI is enabled controls which - interface is used first. + serial# - contains hardware identification information such + as type string and/or serial number + ethaddr - Ethernet address - ethact - When CONFIG_NET_MULTI is enabled controls which - interface is currently active. For example you - can do the following + These variables can be set only once (usually during manufacturing of + the board). U-Boot refuses to delete or overwrite these variables + once they have been set once. - => setenv ethact FEC ETHERNET - => ping 192.168.0.1 # traffic sent on FEC ETHERNET - => setenv ethact SCC ETHERNET - => ping 10.0.0.1 # traffic sent on SCC ETHERNET - netretry - When set to "no" each network operation will - either succeed or fail without retrying. - Useful on scripts which control the retry operation - themselves. + Further special Environment Variables: - vlan - When set to a value < 4095 the traffic over - ethernet is encapsulated/received over 802.1q - VLAN tagged frames. + ver - Contains the U-Boot version string as printed + with the "version" command. This variable is + readonly (see CONFIG_VERSION_VARIABLE). -The following environment variables may be used and automatically -updated by the network boot commands ("bootp" and "rarpboot"), -depending the information provided by your boot server: - bootfile - see above - dnsip - IP address of your Domain Name Server - dnsip2 - IP address of your secondary Domain Name Server - gatewayip - IP address of the Gateway (Router) to use - hostname - Target hostname - ipaddr - see above - netmask - Subnet Mask - rootpath - Pathname of the root filesystem on the NFS server - serverip - see above + Please note that changes to some configuration parameters may take + only effect after the next boot (yes, that's just like Windoze :-). -There are two special Environment Variables: + Command Line Parsing: + ===================== - serial# - contains hardware identification information such - as type string and/or serial number - ethaddr - Ethernet address + There are two different command line parsers available with U-Boot: + the old "simple" one, and the much more powerful "hush" shell: -These variables can be set only once (usually during manufacturing of -the board). U-Boot refuses to delete or overwrite these variables -once they have been set once. + Old, simple command line parser: + -------------------------------- + - supports environment variables (through setenv / saveenv commands) + - several commands on one line, separated by ';' + - variable substitution using "... $(name) ..." syntax + - special characters ('$', ';') can be escaped by prefixing with '\', + for example: + setenv bootcmd bootm \$(address) + - You can also escape text by enclosing in single apostrophes, for example: + setenv addip 'setenv bootargs $bootargs ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname::off' -Further special Environment Variables: + Hush shell: + ----------- - ver - Contains the U-Boot version string as printed - with the "version" command. This variable is - readonly (see CONFIG_VERSION_VARIABLE). + - similar to Bourne shell, with control structures like + if...then...else...fi, for...do...done; while...do...done, + until...do...done, ... + - supports environment ("global") variables (through setenv / saveenv + commands) and local shell variables (through standard shell syntax + "name=value"); only environment variables can be used with "run" + command + General rules: + -------------- -Please note that changes to some configuration parameters may take -only effect after the next boot (yes, that's just like Windoze :-). + (1) If a command line (or an environment variable executed by a "run" + command) contains several commands separated by semicolon, and + one of these commands fails, then the remaining commands will be + executed anyway. + (2) If you execute several variables with one call to run (i. e. + calling run with a list af variables as arguments), any failing + command will cause "run" to terminate, i. e. the remaining + variables are not executed. -Command Line Parsing: -===================== + Note for Redundant Ethernet Interfaces: + ======================================= -There are two different command line parsers available with U-Boot: -the old "simple" one, and the much more powerful "hush" shell: + Some boards come with redundant ethernet interfaces; U-Boot supports + such configurations and is capable of automatic selection of a + "working" interface when needed. MAC assignment works as follows: -Old, simple command line parser: --------------------------------- + Network interfaces are numbered eth0, eth1, eth2, ... Corresponding + MAC addresses can be stored in the environment as "ethaddr" (=>eth0), + "eth1addr" (=>eth1), "eth2addr", ... -- supports environment variables (through setenv / saveenv commands) -- several commands on one line, separated by ';' -- variable substitution using "... $(name) ..." syntax -- special characters ('$', ';') can be escaped by prefixing with '\', - for example: - setenv bootcmd bootm \$(address) -- You can also escape text by enclosing in single apostrophes, for example: - setenv addip 'setenv bootargs $bootargs ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname::off' + If the network interface stores some valid MAC address (for instance + in SROM), this is used as default address if there is NO correspon- + ding setting in the environment; if the corresponding environment + variable is set, this overrides the settings in the card; that means: -Hush shell: ------------ + o If the SROM has a valid MAC address, and there is no address in the + environment, the SROM's address is used. -- similar to Bourne shell, with control structures like - if...then...else...fi, for...do...done; while...do...done, - until...do...done, ... -- supports environment ("global") variables (through setenv / saveenv - commands) and local shell variables (through standard shell syntax - "name=value"); only environment variables can be used with "run" - command + o If there is no valid address in the SROM, and a definition in the + environment exists, then the value from the environment variable is + used. -General rules: --------------- - -(1) If a command line (or an environment variable executed by a "run" - command) contains several commands separated by semicolon, and - one of these commands fails, then the remaining commands will be - executed anyway. - -(2) If you execute several variables with one call to run (i. e. - calling run with a list af variables as arguments), any failing - command will cause "run" to terminate, i. e. the remaining - variables are not executed. + o If both the SROM and the environment contain a MAC address, and + both addresses are the same, this MAC address is used. -Note for Redundant Ethernet Interfaces: -======================================= + o If both the SROM and the environment contain a MAC address, and the + addresses differ, the value from the environment is used and a + warning is printed. -Some boards come with redundant ethernet interfaces; U-Boot supports -such configurations and is capable of automatic selection of a -"working" interface when needed. MAC assignment works as follows: + o If neither SROM nor the environment contain a MAC address, an error + is raised. -Network interfaces are numbered eth0, eth1, eth2, ... Corresponding -MAC addresses can be stored in the environment as "ethaddr" (=>eth0), -"eth1addr" (=>eth1), "eth2addr", ... -If the network interface stores some valid MAC address (for instance -in SROM), this is used as default address if there is NO correspon- -ding setting in the environment; if the corresponding environment -variable is set, this overrides the settings in the card; that means: + Image Formats: + ============== -o If the SROM has a valid MAC address, and there is no address in the - environment, the SROM's address is used. + The "boot" commands of this monitor operate on "image" files which + can be basicly anything, preceeded by a special header; see the + definitions in include/image.h for details; basicly, the header + defines the following image properties: -o If there is no valid address in the SROM, and a definition in the - environment exists, then the value from the environment variable is - used. + * Target Operating System (Provisions for OpenBSD, NetBSD, FreeBSD, + 4.4BSD, Linux, SVR4, Esix, Solaris, Irix, SCO, Dell, NCR, VxWorks, + LynxOS, pSOS, QNX, RTEMS, ARTOS; + Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, ARTOS, LynxOS). + * Target CPU Architecture (Provisions for Alpha, ARM, Intel x86, + IA64, MIPS, NIOS, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit; + Currently supported: ARM, Intel x86, MIPS, NIOS, PowerPC). + * Compression Type (uncompressed, gzip, bzip2) + * Load Address + * Entry Point + * Image Name + * Image Timestamp -o If both the SROM and the environment contain a MAC address, and - both addresses are the same, this MAC address is used. + The header is marked by a special Magic Number, and both the header + and the data portions of the image are secured against corruption by + CRC32 checksums. -o If both the SROM and the environment contain a MAC address, and the - addresses differ, the value from the environment is used and a - warning is printed. -o If neither SROM nor the environment contain a MAC address, an error - is raised. + Linux Support: + ============== + Although U-Boot should support any OS or standalone application + easily, the main focus has always been on Linux during the design of + U-Boot. -Image Formats: -============== + U-Boot includes many features that so far have been part of some + special "boot loader" code within the Linux kernel. Also, any + "initrd" images to be used are no longer part of one big Linux image; + instead, kernel and "initrd" are separate images. This implementation + serves several purposes: -The "boot" commands of this monitor operate on "image" files which -can be basicly anything, preceeded by a special header; see the -definitions in include/image.h for details; basicly, the header -defines the following image properties: + - the same features can be used for other OS or standalone + applications (for instance: using compressed images to reduce the + Flash memory footprint) -* Target Operating System (Provisions for OpenBSD, NetBSD, FreeBSD, - 4.4BSD, Linux, SVR4, Esix, Solaris, Irix, SCO, Dell, NCR, VxWorks, - LynxOS, pSOS, QNX, RTEMS, ARTOS; - Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, ARTOS, LynxOS). -* Target CPU Architecture (Provisions for Alpha, ARM, Intel x86, - IA64, MIPS, NIOS, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit; - Currently supported: ARM, Intel x86, MIPS, NIOS, PowerPC). -* Compression Type (uncompressed, gzip, bzip2) -* Load Address -* Entry Point -* Image Name -* Image Timestamp + - it becomes much easier to port new Linux kernel versions because + lots of low-level, hardware dependent stuff are done by U-Boot -The header is marked by a special Magic Number, and both the header -and the data portions of the image are secured against corruption by -CRC32 checksums. + - the same Linux kernel image can now be used with different "initrd" + images; of course this also means that different kernel images can + be run with the same "initrd". This makes testing easier (you don't + have to build a new "zImage.initrd" Linux image when you just + change a file in your "initrd"). Also, a field-upgrade of the + software is easier now. -Linux Support: -============== + Linux HOWTO: + ============ -Although U-Boot should support any OS or standalone application -easily, the main focus has always been on Linux during the design of -U-Boot. + Porting Linux to U-Boot based systems: + --------------------------------------- -U-Boot includes many features that so far have been part of some -special "boot loader" code within the Linux kernel. Also, any -"initrd" images to be used are no longer part of one big Linux image; -instead, kernel and "initrd" are separate images. This implementation -serves several purposes: + U-Boot cannot save you from doing all the necessary modifications to + configure the Linux device drivers for use with your target hardware + (no, we don't intend to provide a full virtual machine interface to + Linux :-). -- the same features can be used for other OS or standalone - applications (for instance: using compressed images to reduce the - Flash memory footprint) + But now you can ignore ALL boot loader code (in arch/ppc/mbxboot). -- it becomes much easier to port new Linux kernel versions because - lots of low-level, hardware dependent stuff are done by U-Boot + Just make sure your machine specific header file (for instance + include/asm-ppc/tqm8xx.h) includes the same definition of the Board + Information structure as we define in include/u-boot.h, and make + sure that your definition of IMAP_ADDR uses the same value as your + U-Boot configuration in CFG_IMMR. -- the same Linux kernel image can now be used with different "initrd" - images; of course this also means that different kernel images can - be run with the same "initrd". This makes testing easier (you don't - have to build a new "zImage.initrd" Linux image when you just - change a file in your "initrd"). Also, a field-upgrade of the - software is easier now. + Configuring the Linux kernel: + ----------------------------- -Linux HOWTO: -============ + No specific requirements for U-Boot. Make sure you have some root + device (initial ramdisk, NFS) for your target system. -Porting Linux to U-Boot based systems: ---------------------------------------- -U-Boot cannot save you from doing all the necessary modifications to -configure the Linux device drivers for use with your target hardware -(no, we don't intend to provide a full virtual machine interface to -Linux :-). + Building a Linux Image: + ----------------------- -But now you can ignore ALL boot loader code (in arch/ppc/mbxboot). + With U-Boot, "normal" build targets like "zImage" or "bzImage" are + not used. If you use recent kernel source, a new build target + "uImage" will exist which automatically builds an image usable by + U-Boot. Most older kernels also have support for a "pImage" target, + which was introduced for our predecessor project PPCBoot and uses a + 100% compatible format. -Just make sure your machine specific header file (for instance -include/asm-ppc/tqm8xx.h) includes the same definition of the Board -Information structure as we define in include/u-boot.h, and make -sure that your definition of IMAP_ADDR uses the same value as your -U-Boot configuration in CFG_IMMR. + Example: + make TQM850L_config + make oldconfig + make dep + make uImage -Configuring the Linux kernel: ------------------------------ + The "uImage" build target uses a special tool (in 'tools/mkimage') to + encapsulate a compressed Linux kernel image with header information, + CRC32 checksum etc. for use with U-Boot. This is what we are doing: -No specific requirements for U-Boot. Make sure you have some root -device (initial ramdisk, NFS) for your target system. + * build a standard "vmlinux" kernel image (in ELF binary format): + + * convert the kernel into a raw binary image: + + ${CROSS_COMPILE}-objcopy -O binary \ + -R .note -R .comment \ + -S vmlinux linux.bin + + * compress the binary image: + + gzip -9 linux.bin + * package compressed binary image for U-Boot: -Building a Linux Image: ------------------------ + mkimage -A ppc -O linux -T kernel -C gzip \ + -a 0 -e 0 -n "Linux Kernel Image" \ + -d linux.bin.gz uImage -With U-Boot, "normal" build targets like "zImage" or "bzImage" are -not used. If you use recent kernel source, a new build target -"uImage" will exist which automatically builds an image usable by -U-Boot. Most older kernels also have support for a "pImage" target, -which was introduced for our predecessor project PPCBoot and uses a -100% compatible format. - -Example: - - make TQM850L_config - make oldconfig - make dep - make uImage - -The "uImage" build target uses a special tool (in 'tools/mkimage') to -encapsulate a compressed Linux kernel image with header information, -CRC32 checksum etc. for use with U-Boot. This is what we are doing: - -* build a standard "vmlinux" kernel image (in ELF binary format): - -* convert the kernel into a raw binary image: - - ${CROSS_COMPILE}-objcopy -O binary \ - -R .note -R .comment \ - -S vmlinux linux.bin - -* compress the binary image: - - gzip -9 linux.bin - -* package compressed binary image for U-Boot: - - mkimage -A ppc -O linux -T kernel -C gzip \ - -a 0 -e 0 -n "Linux Kernel Image" \ - -d linux.bin.gz uImage + The "mkimage" tool can also be used to create ramdisk images for use + with U-Boot, either separated from the Linux kernel image, or + combined into one file. "mkimage" encapsulates the images with a 64 + byte header containing information about target architecture, + operating system, image type, compression method, entry points, time + stamp, CRC32 checksums, etc. -The "mkimage" tool can also be used to create ramdisk images for use -with U-Boot, either separated from the Linux kernel image, or -combined into one file. "mkimage" encapsulates the images with a 64 -byte header containing information about target architecture, -operating system, image type, compression method, entry points, time -stamp, CRC32 checksums, etc. - -"mkimage" can be called in two ways: to verify existing images and -print the header information, or to build new images. - -In the first form (with "-l" option) mkimage lists the information -contained in the header of an existing U-Boot image; this includes -checksum verification: + "mkimage" can be called in two ways: to verify existing images and + print the header information, or to build new images. - tools/mkimage -l image - -l ==> list image header information + In the first form (with "-l" option) mkimage lists the information + contained in the header of an existing U-Boot image; this includes + checksum verification: -The second form (with "-d" option) is used to build a U-Boot image -from a "data file" which is used as image payload: - - tools/mkimage -A arch -O os -T type -C comp -a addr -e ep \ - -n name -d data_file image - -A ==> set architecture to 'arch' - -O ==> set operating system to 'os' - -T ==> set image type to 'type' - -C ==> set compression type 'comp' - -a ==> set load address to 'addr' (hex) - -e ==> set entry point to 'ep' (hex) - -n ==> set image name to 'name' - -d ==> use image data from 'datafile' + tools/mkimage -l image + -l ==> list image header information -Right now, all Linux kernels use the same load address (0x00000000), -but the entry point address depends on the kernel version: - -- 2.2.x kernels have the entry point at 0x0000000C, -- 2.3.x and later kernels have the entry point at 0x00000000. - -So a typical call to build a U-Boot image would read: - - -> tools/mkimage -n '2.4.4 kernel for TQM850L' \ - > -A ppc -O linux -T kernel -C gzip -a 0 -e 0 \ - > -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux.gz \ - > examples/uImage.TQM850L - Image Name: 2.4.4 kernel for TQM850L - Created: Wed Jul 19 02:34:59 2000 - Image Type: PowerPC Linux Kernel Image (gzip compressed) - Data Size: 335725 Bytes = 327.86 kB = 0.32 MB - Load Address: 0x00000000 - Entry Point: 0x00000000 + The second form (with "-d" option) is used to build a U-Boot image + from a "data file" which is used as image payload: -To verify the contents of the image (or check for corruption): + tools/mkimage -A arch -O os -T type -C comp -a addr -e ep \ + -n name -d data_file image + -A ==> set architecture to 'arch' + -O ==> set operating system to 'os' + -T ==> set image type to 'type' + -C ==> set compression type 'comp' + -a ==> set load address to 'addr' (hex) + -e ==> set entry point to 'ep' (hex) + -n ==> set image name to 'name' + -d ==> use image data from 'datafile' - -> tools/mkimage -l examples/uImage.TQM850L - Image Name: 2.4.4 kernel for TQM850L - Created: Wed Jul 19 02:34:59 2000 - Image Type: PowerPC Linux Kernel Image (gzip compressed) - Data Size: 335725 Bytes = 327.86 kB = 0.32 MB - Load Address: 0x00000000 - Entry Point: 0x00000000 + Right now, all Linux kernels use the same load address (0x00000000), + but the entry point address depends on the kernel version: -NOTE: for embedded systems where boot time is critical you can trade -speed for memory and install an UNCOMPRESSED image instead: this -needs more space in Flash, but boots much faster since it does not -need to be uncompressed: - - -> gunzip /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux.gz - -> tools/mkimage -n '2.4.4 kernel for TQM850L' \ - > -A ppc -O linux -T kernel -C none -a 0 -e 0 \ - > -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux \ - > examples/uImage.TQM850L-uncompressed - Image Name: 2.4.4 kernel for TQM850L - Created: Wed Jul 19 02:34:59 2000 - Image Type: PowerPC Linux Kernel Image (uncompressed) - Data Size: 792160 Bytes = 773.59 kB = 0.76 MB - Load Address: 0x00000000 - Entry Point: 0x00000000 - - -Similar you can build U-Boot images from a 'ramdisk.image.gz' file -when your kernel is intended to use an initial ramdisk: - - -> tools/mkimage -n 'Simple Ramdisk Image' \ - > -A ppc -O linux -T ramdisk -C gzip \ - > -d /LinuxPPC/images/SIMPLE-ramdisk.image.gz examples/simple-initrd - Image Name: Simple Ramdisk Image - Created: Wed Jan 12 14:01:50 2000 - Image Type: PowerPC Linux RAMDisk Image (gzip compressed) - Data Size: 566530 Bytes = 553.25 kB = 0.54 MB - Load Address: 0x00000000 - Entry Point: 0x00000000 - - -Installing a Linux Image: -------------------------- - -To downloading a U-Boot image over the serial (console) interface, -you must convert the image to S-Record format: - - objcopy -I binary -O srec examples/image examples/image.srec - -The 'objcopy' does not understand the information in the U-Boot -image header, so the resulting S-Record file will be relative to -address 0x00000000. To load it to a given address, you need to -specify the target address as 'offset' parameter with the 'loads' -command. - -Example: install the image to address 0x40100000 (which on the -TQM8xxL is in the first Flash bank): - - => erase 40100000 401FFFFF - - .......... done - Erased 8 sectors - - => loads 40100000 - ## Ready for S-Record download ... - ~>examples/image.srec - 1 2 3 4 5 6 7 8 9 10 11 12 13 ... - ... - 15989 15990 15991 15992 - [file transfer complete] - [connected] - ## Start Addr = 0x00000000 - - -You can check the success of the download using the 'iminfo' command; -this includes a checksum verification so you can be sure no data -corruption happened: - - => imi 40100000 - - ## Checking Image at 40100000 ... - Image Name: 2.2.13 for initrd on TQM850L - Image Type: PowerPC Linux Kernel Image (gzip compressed) - Data Size: 335725 Bytes = 327 kB = 0 MB - Load Address: 00000000 - Entry Point: 0000000c - Verifying Checksum ... OK - - -Boot Linux: ------------ - -The "bootm" command is used to boot an application that is stored in -memory (RAM or Flash). In case of a Linux kernel image, the contents -of the "bootargs" environment variable is passed to the kernel as -parameters. You can check and modify this variable using the -"printenv" and "setenv" commands: - - - => printenv bootargs - bootargs=root=/dev/ram - - => setenv bootargs root=/dev/nfs rw nfsroot=10.0.0.2:/LinuxPPC nfsaddrs=10.0.0.99:10.0.0.2 - - => printenv bootargs - bootargs=root=/dev/nfs rw nfsroot=10.0.0.2:/LinuxPPC nfsaddrs=10.0.0.99:10.0.0.2 - - => bootm 40020000 - ## Booting Linux kernel at 40020000 ... - Image Name: 2.2.13 for NFS on TQM850L - Image Type: PowerPC Linux Kernel Image (gzip compressed) - Data Size: 381681 Bytes = 372 kB = 0 MB - Load Address: 00000000 - Entry Point: 0000000c - Verifying Checksum ... OK - Uncompressing Kernel Image ... OK - Linux version 2.2.13 (wd@denx.local.net) (gcc version 2.95.2 19991024 (release)) #1 Wed Jul 19 02:35:17 MEST 2000 - Boot arguments: root=/dev/nfs rw nfsroot=10.0.0.2:/LinuxPPC nfsaddrs=10.0.0.99:10.0.0.2 - time_init: decrementer frequency = 187500000/60 - Calibrating delay loop... 49.77 BogoMIPS - Memory: 15208k available (700k kernel code, 444k data, 32k init) [c0000000,c1000000] - ... - -If you want to boot a Linux kernel with initial ram disk, you pass -the memory addresses of both the kernel and the initrd image (PPBCOOT -format!) to the "bootm" command: - - => imi 40100000 40200000 - - ## Checking Image at 40100000 ... - Image Name: 2.2.13 for initrd on TQM850L - Image Type: PowerPC Linux Kernel Image (gzip compressed) - Data Size: 335725 Bytes = 327 kB = 0 MB - Load Address: 00000000 - Entry Point: 0000000c - Verifying Checksum ... OK - - ## Checking Image at 40200000 ... - Image Name: Simple Ramdisk Image - Image Type: PowerPC Linux RAMDisk Image (gzip compressed) - Data Size: 566530 Bytes = 553 kB = 0 MB - Load Address: 00000000 - Entry Point: 00000000 - Verifying Checksum ... OK - - => bootm 40100000 40200000 - ## Booting Linux kernel at 40100000 ... - Image Name: 2.2.13 for initrd on TQM850L - Image Type: PowerPC Linux Kernel Image (gzip compressed) - Data Size: 335725 Bytes = 327 kB = 0 MB - Load Address: 00000000 - Entry Point: 0000000c - Verifying Checksum ... OK - Uncompressing Kernel Image ... OK - ## Loading RAMDisk Image at 40200000 ... - Image Name: Simple Ramdisk Image - Image Type: PowerPC Linux RAMDisk Image (gzip compressed) - Data Size: 566530 Bytes = 553 kB = 0 MB - Load Address: 00000000 - Entry Point: 00000000 - Verifying Checksum ... OK - Loading Ramdisk ... OK - Linux version 2.2.13 (wd@denx.local.net) (gcc version 2.95.2 19991024 (release)) #1 Wed Jul 19 02:32:08 MEST 2000 - Boot arguments: root=/dev/ram - time_init: decrementer frequency = 187500000/60 - Calibrating delay loop... 49.77 BogoMIPS - ... - RAMDISK: Compressed image found at block 0 - VFS: Mounted root (ext2 filesystem). - - bash# - -More About U-Boot Image Types: ------------------------------- - -U-Boot supports the following image types: - - "Standalone Programs" are directly runnable in the environment - provided by U-Boot; it is expected that (if they behave - well) you can continue to work in U-Boot after return from - the Standalone Program. - "OS Kernel Images" are usually images of some Embedded OS which - will take over control completely. Usually these programs - will install their own set of exception handlers, device - drivers, set up the MMU, etc. - this means, that you cannot - expect to re-enter U-Boot except by resetting the CPU. - "RAMDisk Images" are more or less just data blocks, and their - parameters (address, size) are passed to an OS kernel that is - being started. - "Multi-File Images" contain several images, typically an OS - (Linux) kernel image and one or more data images like - RAMDisks. This construct is useful for instance when you want - to boot over the network using BOOTP etc., where the boot - server provides just a single image file, but you want to get - for instance an OS kernel and a RAMDisk image. - - "Multi-File Images" start with a list of image sizes, each - image size (in bytes) specified by an "uint32_t" in network - byte order. This list is terminated by an "(uint32_t)0". - Immediately after the terminating 0 follow the images, one by - one, all aligned on "uint32_t" boundaries (size rounded up to - a multiple of 4 bytes). - - "Firmware Images" are binary images containing firmware (like - U-Boot or FPGA images) which usually will be programmed to - flash memory. - - "Script files" are command sequences that will be executed by - U-Boot's command interpreter; this feature is especially - useful when you configure U-Boot to use a real shell (hush) - as command interpreter. - - -Standalone HOWTO: -================= - -One of the features of U-Boot is that you can dynamically load and -run "standalone" applications, which can use some resources of -U-Boot like console I/O functions or interrupt services. - -Two simple examples are included with the sources: - -"Hello World" Demo: -------------------- - -'examples/hello_world.c' contains a small "Hello World" Demo -application; it is automatically compiled when you build U-Boot. -It's configured to run at address 0x00040004, so you can play with it -like that: - - => loads - ## Ready for S-Record download ... - ~>examples/hello_world.srec - 1 2 3 4 5 6 7 8 9 10 11 ... - [file transfer complete] - [connected] - ## Start Addr = 0x00040004 - - => go 40004 Hello World! This is a test. - ## Starting application at 0x00040004 ... - Hello World - argc = 7 - argv[0] = "40004" - argv[1] = "Hello" - argv[2] = "World!" - argv[3] = "This" - argv[4] = "is" - argv[5] = "a" - argv[6] = "test." - argv[7] = "<NULL>" - Hit any key to exit ... - - ## Application terminated, rc = 0x0 - -Another example, which demonstrates how to register a CPM interrupt -handler with the U-Boot code, can be found in 'examples/timer.c'. -Here, a CPM timer is set up to generate an interrupt every second. -The interrupt service routine is trivial, just printing a '.' -character, but this is just a demo program. The application can be -controlled by the following keys: - - ? - print current values og the CPM Timer registers - b - enable interrupts and start timer - e - stop timer and disable interrupts - q - quit application - - => loads - ## Ready for S-Record download ... - ~>examples/timer.srec - 1 2 3 4 5 6 7 8 9 10 11 ... - [file transfer complete] - [connected] - ## Start Addr = 0x00040004 - - => go 40004 - ## Starting application at 0x00040004 ... - TIMERS=0xfff00980 - Using timer 1 - tgcr @ 0xfff00980, tmr @ 0xfff00990, trr @ 0xfff00994, tcr @ 0xfff00998, tcn @ 0xfff0099c, ter @ 0xfff009b0 - -Hit 'b': - [q, b, e, ?] Set interval 1000000 us - Enabling timer -Hit '?': - [q, b, e, ?] ........ - tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0xef6, ter=0x0 -Hit '?': - [q, b, e, ?] . - tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0x2ad4, ter=0x0 -Hit '?': - [q, b, e, ?] . - tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0x1efc, ter=0x0 -Hit '?': - [q, b, e, ?] . - tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0x169d, ter=0x0 -Hit 'e': - [q, b, e, ?] ...Stopping timer -Hit 'q': - [q, b, e, ?] ## Application terminated, rc = 0x0 - - -Minicom warning: -================ - -Over time, many people have reported problems when trying to use the -"minicom" terminal emulation program for serial download. I (wd) -consider minicom to be broken, and recommend not to use it. Under -Unix, I recommend to use C-Kermit for general purpose use (and -especially for kermit binary protocol download ("loadb" command), and -use "cu" for S-Record download ("loads" command). - -Nevertheless, if you absolutely want to use it try adding this -configuration to your "File transfer protocols" section: - - Name Program Name U/D FullScr IO-Red. Multi - X kermit /usr/bin/kermit -i -l %l -s Y U Y N N - Y kermit /usr/bin/kermit -i -l %l -r N D Y N N - - -NetBSD Notes: -============= - -Starting at version 0.9.2, U-Boot supports NetBSD both as host -(build U-Boot) and target system (boots NetBSD/mpc8xx). - -Building requires a cross environment; it is known to work on -NetBSD/i386 with the cross-powerpc-netbsd-1.3 package (you will also -need gmake since the Makefiles are not compatible with BSD make). -Note that the cross-powerpc package does not install include files; -attempting to build U-Boot will fail because <machine/ansi.h> is -missing. This file has to be installed and patched manually: - - # cd /usr/pkg/cross/powerpc-netbsd/include - # mkdir powerpc - # ln -s powerpc machine - # cp /usr/src/sys/arch/powerpc/include/ansi.h powerpc/ansi.h - # ${EDIT} powerpc/ansi.h ## must remove __va_list, _BSD_VA_LIST - -Native builds *don't* work due to incompatibilities between native -and U-Boot include files. - -Booting assumes that (the first part of) the image booted is a -stage-2 loader which in turn loads and then invokes the kernel -proper. Loader sources will eventually appear in the NetBSD source -tree (probably in sys/arc/mpc8xx/stand/u-boot_stage2/); in the -meantime, send mail to bruno@exet-ag.de and/or wd@denx.de for -details. - - -Implementation Internals: -========================= - -The following is not intended to be a complete description of every -implementation detail. However, it should help to understand the -inner workings of U-Boot and make it easier to port it to custom -hardware. - - -Initial Stack, Global Data: ---------------------------- - -The implementation of U-Boot is complicated by the fact that U-Boot -starts running out of ROM (flash memory), usually without access to -system RAM (because the memory controller is not initialized yet). -This means that we don't have writable Data or BSS segments, and BSS -is not initialized as zero. To be able to get a C environment working -at all, we have to allocate at least a minimal stack. Implementation -options for this are defined and restricted by the CPU used: Some CPU -models provide on-chip memory (like the IMMR area on MPC8xx and -MPC826x processors), on others (parts of) the data cache can be -locked as (mis-) used as memory, etc. - - Chris Hallinan posted a good summary of these issues to the - u-boot-users mailing list: - - Subject: RE: [U-Boot-Users] RE: More On Memory Bank x (nothingness)? - From: "Chris Hallinan" <clh@net1plus.com> - Date: Mon, 10 Feb 2003 16:43:46 -0500 (22:43 MET) - ... - - Correct me if I'm wrong, folks, but the way I understand it - is this: Using DCACHE as initial RAM for Stack, etc, does not - require any physical RAM backing up the cache. The cleverness - is that the cache is being used as a temporary supply of - necessary storage before the SDRAM controller is setup. It's - beyond the scope of this list to expain the details, but you - can see how this works by studying the cache architecture and - operation in the architecture and processor-specific manuals. - - OCM is On Chip Memory, which I believe the 405GP has 4K. It - is another option for the system designer to use as an - initial stack/ram area prior to SDRAM being available. Either - option should work for you. Using CS 4 should be fine if your - board designers haven't used it for something that would - cause you grief during the initial boot! It is frequently not - used. - - CFG_INIT_RAM_ADDR should be somewhere that won't interfere - with your processor/board/system design. The default value - you will find in any recent u-boot distribution in - Walnut405.h should work for you. I'd set it to a value larger - than your SDRAM module. If you have a 64MB SDRAM module, set - it above 400_0000. Just make sure your board has no resources - that are supposed to respond to that address! That code in - start.S has been around a while and should work as is when - you get the config right. - - -Chris Hallinan - DS4.COM, Inc. - -It is essential to remember this, since it has some impact on the C -code for the initialization procedures: - -* Initialized global data (data segment) is read-only. Do not attempt - to write it. - -* Do not use any unitialized global data (or implicitely initialized - as zero data - BSS segment) at all - this is undefined, initiali- - zation is performed later (when relocating to RAM). - -* Stack space is very limited. Avoid big data buffers or things like - that. - -Having only the stack as writable memory limits means we cannot use -normal global data to share information beween the code. But it -turned out that the implementation of U-Boot can be greatly -simplified by making a global data structure (gd_t) available to all -functions. We could pass a pointer to this data as argument to _all_ -functions, but this would bloat the code. Instead we use a feature of -the GCC compiler (Global Register Variables) to share the data: we -place a pointer (gd) to the global data into a register which we -reserve for this purpose. - -When choosing a register for such a purpose we are restricted by the -relevant (E)ABI specifications for the current architecture, and by -GCC's implementation. - -For PowerPC, the following registers have specific use: - R1: stack pointer - R2: TOC pointer - R3-R4: parameter passing and return values - R5-R10: parameter passing - R13: small data area pointer - R30: GOT pointer - R31: frame pointer - - (U-Boot also uses R14 as internal GOT pointer.) - - ==> U-Boot will use R29 to hold a pointer to the global data - - Note: on PPC, we could use a static initializer (since the - address of the global data structure is known at compile time), - but it turned out that reserving a register results in somewhat - smaller code - although the code savings are not that big (on - average for all boards 752 bytes for the whole U-Boot image, - 624 text + 127 data). - -On ARM, the following registers are used: - - R0: function argument word/integer result - R1-R3: function argument word - R9: GOT pointer - R10: stack limit (used only if stack checking if enabled) - R11: argument (frame) pointer - R12: temporary workspace - R13: stack pointer - R14: link register - R15: program counter - - ==> U-Boot will use R8 to hold a pointer to the global data - - -Memory Management: ------------------- - -U-Boot runs in system state and uses physical addresses, i.e. the -MMU is not used either for address mapping nor for memory protection. - -The available memory is mapped to fixed addresses using the memory -controller. In this process, a contiguous block is formed for each -memory type (Flash, SDRAM, SRAM), even when it consists of several -physical memory banks. - -U-Boot is installed in the first 128 kB of the first Flash bank (on -TQM8xxL modules this is the range 0x40000000 ... 0x4001FFFF). After -booting and sizing and initializing DRAM, the code relocates itself -to the upper end of DRAM. Immediately below the U-Boot code some -memory is reserved for use by malloc() [see CFG_MALLOC_LEN -configuration setting]. Below that, a structure with global Board -Info data is placed, followed by the stack (growing downward). - -Additionally, some exception handler code is copied to the low 8 kB -of DRAM (0x00000000 ... 0x00001FFF). - -So a typical memory configuration with 16 MB of DRAM could look like -this: - - 0x0000 0000 Exception Vector code - : - 0x0000 1FFF - 0x0000 2000 Free for Application Use - : - : - - : - : - 0x00FB FF20 Monitor Stack (Growing downward) - 0x00FB FFAC Board Info Data and permanent copy of global data - 0x00FC 0000 Malloc Arena - : - 0x00FD FFFF - 0x00FE 0000 RAM Copy of Monitor Code - ... eventually: LCD or video framebuffer - ... eventually: pRAM (Protected RAM - unchanged by reset) - 0x00FF FFFF [End of RAM] - - -System Initialization: ----------------------- + - 2.2.x kernels have the entry point at 0x0000000C, + - 2.3.x and later kernels have the entry point at 0x00000000. -In the reset configuration, U-Boot starts at the reset entry point -(on most PowerPC systens at address 0x00000100). Because of the reset -configuration for CS0# this is a mirror of the onboard Flash memory. -To be able to re-map memory U-Boot then jumps to its link address. -To be able to implement the initialization code in C, a (small!) -initial stack is set up in the internal Dual Ported RAM (in case CPUs -which provide such a feature like MPC8xx or MPC8260), or in a locked -part of the data cache. After that, U-Boot initializes the CPU core, -the caches and the SIU. - -Next, all (potentially) available memory banks are mapped using a -preliminary mapping. For example, we put them on 512 MB boundaries -(multiples of 0x20000000: SDRAM on 0x00000000 and 0x20000000, Flash -on 0x40000000 and 0x60000000, SRAM on 0x80000000). Then UPM A is -programmed for SDRAM access. Using the temporary configuration, a -simple memory test is run that determines the size of the SDRAM -banks. - -When there is more than one SDRAM bank, and the banks are of -different size, the largest is mapped first. For equal size, the first -bank (CS2#) is mapped first. The first mapping is always for address -0x00000000, with any additional banks following immediately to create -contiguous memory starting from 0. - -Then, the monitor installs itself at the upper end of the SDRAM area -and allocates memory for use by malloc() and for the global Board -Info data; also, the exception vector code is copied to the low RAM -pages, and the final stack is set up. - -Only after this relocation will you have a "normal" C environment; -until that you are restricted in several ways, mostly because you are -running from ROM, and because the code will have to be relocated to a -new address in RAM. - - -U-Boot Porting Guide: ----------------------- + So a typical call to build a U-Boot image would read: -[Based on messages by Jerry Van Baren in the U-Boot-Users mailing -list, October 2002] + -> tools/mkimage -n '2.4.4 kernel for TQM850L' \ + > -A ppc -O linux -T kernel -C gzip -a 0 -e 0 \ + > -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux.gz \ + > examples/uImage.TQM850L + Image Name: 2.4.4 kernel for TQM850L + Created: Wed Jul 19 02:34:59 2000 + Image Type: PowerPC Linux Kernel Image (gzip compressed) + Data Size: 335725 Bytes = 327.86 kB = 0.32 MB + Load Address: 0x00000000 + Entry Point: 0x00000000 + To verify the contents of the image (or check for corruption): -int main (int argc, char *argv[]) -{ - sighandler_t no_more_time; + -> tools/mkimage -l examples/uImage.TQM850L + Image Name: 2.4.4 kernel for TQM850L + Created: Wed Jul 19 02:34:59 2000 + Image Type: PowerPC Linux Kernel Image (gzip compressed) + Data Size: 335725 Bytes = 327.86 kB = 0.32 MB + Load Address: 0x00000000 + Entry Point: 0x00000000 - signal (SIGALRM, no_more_time); - alarm (PROJECT_DEADLINE - toSec (3 * WEEK)); + NOTE: for embedded systems where boot time is critical you can trade + speed for memory and install an UNCOMPRESSED image instead: this + needs more space in Flash, but boots much faster since it does not + need to be uncompressed: + + -> gunzip /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux.gz + -> tools/mkimage -n '2.4.4 kernel for TQM850L' \ + > -A ppc -O linux -T kernel -C none -a 0 -e 0 \ + > -d /opt/elsk/ppc_8xx/usr/src/linux-2.4.4/arch/ppc/coffboot/vmlinux \ + > examples/uImage.TQM850L-uncompressed + Image Name: 2.4.4 kernel for TQM850L + Created: Wed Jul 19 02:34:59 2000 + Image Type: PowerPC Linux Kernel Image (uncompressed) + Data Size: 792160 Bytes = 773.59 kB = 0.76 MB + Load Address: 0x00000000 + Entry Point: 0x00000000 + + + Similar you can build U-Boot images from a 'ramdisk.image.gz' file + when your kernel is intended to use an initial ramdisk: + + -> tools/mkimage -n 'Simple Ramdisk Image' \ + > -A ppc -O linux -T ramdisk -C gzip \ + > -d /LinuxPPC/images/SIMPLE-ramdisk.image.gz examples/simple-initrd + Image Name: Simple Ramdisk Image + Created: Wed Jan 12 14:01:50 2000 + Image Type: PowerPC Linux RAMDisk Image (gzip compressed) + Data Size: 566530 Bytes = 553.25 kB = 0.54 MB + Load Address: 0x00000000 + Entry Point: 0x00000000 + + + Installing a Linux Image: + ------------------------- + + To downloading a U-Boot image over the serial (console) interface, + you must convert the image to S-Record format: + + objcopy -I binary -O srec examples/image examples/image.srec + + The 'objcopy' does not understand the information in the U-Boot + image header, so the resulting S-Record file will be relative to + address 0x00000000. To load it to a given address, you need to + specify the target address as 'offset' parameter with the 'loads' + command. + + Example: install the image to address 0x40100000 (which on the + TQM8xxL is in the first Flash bank): + + => erase 40100000 401FFFFF + + .......... done + Erased 8 sectors + + => loads 40100000 + ## Ready for S-Record download ... + ~>examples/image.srec + 1 2 3 4 5 6 7 8 9 10 11 12 13 ... + ... + 15989 15990 15991 15992 + [file transfer complete] + [connected] + ## Start Addr = 0x00000000 + + + You can check the success of the download using the 'iminfo' command; + this includes a checksum verification so you can be sure no data + corruption happened: + + => imi 40100000 + + ## Checking Image at 40100000 ... + Image Name: 2.2.13 for initrd on TQM850L + Image Type: PowerPC Linux Kernel Image (gzip compressed) + Data Size: 335725 Bytes = 327 kB = 0 MB + Load Address: 00000000 + Entry Point: 0000000c + Verifying Checksum ... OK + + + Boot Linux: + ----------- + + The "bootm" command is used to boot an application that is stored in + memory (RAM or Flash). In case of a Linux kernel image, the contents + of the "bootargs" environment variable is passed to the kernel as + parameters. You can check and modify this variable using the + "printenv" and "setenv" commands: + + + => printenv bootargs + bootargs=root=/dev/ram + + => setenv bootargs root=/dev/nfs rw nfsroot=10.0.0.2:/LinuxPPC nfsaddrs=10.0.0.99:10.0.0.2 + + => printenv bootargs + bootargs=root=/dev/nfs rw nfsroot=10.0.0.2:/LinuxPPC nfsaddrs=10.0.0.99:10.0.0.2 + + => bootm 40020000 + ## Booting Linux kernel at 40020000 ... + Image Name: 2.2.13 for NFS on TQM850L + Image Type: PowerPC Linux Kernel Image (gzip compressed) + Data Size: 381681 Bytes = 372 kB = 0 MB + Load Address: 00000000 + Entry Point: 0000000c + Verifying Checksum ... OK + Uncompressing Kernel Image ... OK + Linux version 2.2.13 (wd@denx.local.net) (gcc version 2.95.2 19991024 (release)) #1 Wed Jul 19 02:35:17 MEST 2000 + Boot arguments: root=/dev/nfs rw nfsroot=10.0.0.2:/LinuxPPC nfsaddrs=10.0.0.99:10.0.0.2 + time_init: decrementer frequency = 187500000/60 + Calibrating delay loop... 49.77 BogoMIPS + Memory: 15208k available (700k kernel code, 444k data, 32k init) [c0000000,c1000000] + ... + + If you want to boot a Linux kernel with initial ram disk, you pass + the memory addresses of both the kernel and the initrd image (PPBCOOT + format!) to the "bootm" command: + + => imi 40100000 40200000 + + ## Checking Image at 40100000 ... + Image Name: 2.2.13 for initrd on TQM850L + Image Type: PowerPC Linux Kernel Image (gzip compressed) + Data Size: 335725 Bytes = 327 kB = 0 MB + Load Address: 00000000 + Entry Point: 0000000c + Verifying Checksum ... OK + + ## Checking Image at 40200000 ... + Image Name: Simple Ramdisk Image + Image Type: PowerPC Linux RAMDisk Image (gzip compressed) + Data Size: 566530 Bytes = 553 kB = 0 MB + Load Address: 00000000 + Entry Point: 00000000 + Verifying Checksum ... OK + + => bootm 40100000 40200000 + ## Booting Linux kernel at 40100000 ... + Image Name: 2.2.13 for initrd on TQM850L + Image Type: PowerPC Linux Kernel Image (gzip compressed) + Data Size: 335725 Bytes = 327 kB = 0 MB + Load Address: 00000000 + Entry Point: 0000000c + Verifying Checksum ... OK + Uncompressing Kernel Image ... OK + ## Loading RAMDisk Image at 40200000 ... + Image Name: Simple Ramdisk Image + Image Type: PowerPC Linux RAMDisk Image (gzip compressed) + Data Size: 566530 Bytes = 553 kB = 0 MB + Load Address: 00000000 + Entry Point: 00000000 + Verifying Checksum ... OK + Loading Ramdisk ... OK + Linux version 2.2.13 (wd@denx.local.net) (gcc version 2.95.2 19991024 (release)) #1 Wed Jul 19 02:32:08 MEST 2000 + Boot arguments: root=/dev/ram + time_init: decrementer frequency = 187500000/60 + Calibrating delay loop... 49.77 BogoMIPS + ... + RAMDISK: Compressed image found at block 0 + VFS: Mounted root (ext2 filesystem). + + bash# + + More About U-Boot Image Types: + ------------------------------ + + U-Boot supports the following image types: + + "Standalone Programs" are directly runnable in the environment + provided by U-Boot; it is expected that (if they behave + well) you can continue to work in U-Boot after return from + the Standalone Program. + "OS Kernel Images" are usually images of some Embedded OS which + will take over control completely. Usually these programs + will install their own set of exception handlers, device + drivers, set up the MMU, etc. - this means, that you cannot + expect to re-enter U-Boot except by resetting the CPU. + "RAMDisk Images" are more or less just data blocks, and their + parameters (address, size) are passed to an OS kernel that is + being started. + "Multi-File Images" contain several images, typically an OS + (Linux) kernel image and one or more data images like + RAMDisks. This construct is useful for instance when you want + to boot over the network using BOOTP etc., where the boot + server provides just a single image file, but you want to get + for instance an OS kernel and a RAMDisk image. + + "Multi-File Images" start with a list of image sizes, each + image size (in bytes) specified by an "uint32_t" in network + byte order. This list is terminated by an "(uint32_t)0". + Immediately after the terminating 0 follow the images, one by + one, all aligned on "uint32_t" boundaries (size rounded up to + a multiple of 4 bytes). + + "Firmware Images" are binary images containing firmware (like + U-Boot or FPGA images) which usually will be programmed to + flash memory. + + "Script files" are command sequences that will be executed by + U-Boot's command interpreter; this feature is especially + useful when you configure U-Boot to use a real shell (hush) + as command interpreter. + + + Standalone HOWTO: + ================= + + One of the features of U-Boot is that you can dynamically load and + run "standalone" applications, which can use some resources of + U-Boot like console I/O functions or interrupt services. + + Two simple examples are included with the sources: + + "Hello World" Demo: + ------------------- + + 'examples/hello_world.c' contains a small "Hello World" Demo + application; it is automatically compiled when you build U-Boot. + It's configured to run at address 0x00040004, so you can play with it + like that: + + => loads + ## Ready for S-Record download ... + ~>examples/hello_world.srec + 1 2 3 4 5 6 7 8 9 10 11 ... + [file transfer complete] + [connected] + ## Start Addr = 0x00040004 + + => go 40004 Hello World! This is a test. + ## Starting application at 0x00040004 ... + Hello World + argc = 7 + argv[0] = "40004" + argv[1] = "Hello" + argv[2] = "World!" + argv[3] = "This" + argv[4] = "is" + argv[5] = "a" + argv[6] = "test." + argv[7] = "<NULL>" + Hit any key to exit ... + + ## Application terminated, rc = 0x0 + + Another example, which demonstrates how to register a CPM interrupt + handler with the U-Boot code, can be found in 'examples/timer.c'. + Here, a CPM timer is set up to generate an interrupt every second. + The interrupt service routine is trivial, just printing a '.' + character, but this is just a demo program. The application can be + controlled by the following keys: + + ? - print current values og the CPM Timer registers + b - enable interrupts and start timer + e - stop timer and disable interrupts + q - quit application + + => loads + ## Ready for S-Record download ... + ~>examples/timer.srec + 1 2 3 4 5 6 7 8 9 10 11 ... + [file transfer complete] + [connected] + ## Start Addr = 0x00040004 + + => go 40004 + ## Starting application at 0x00040004 ... + TIMERS=0xfff00980 + Using timer 1 + tgcr @ 0xfff00980, tmr @ 0xfff00990, trr @ 0xfff00994, tcr @ 0xfff00998, tcn @ 0xfff0099c, ter @ 0xfff009b0 + + Hit 'b': + [q, b, e, ?] Set interval 1000000 us + Enabling timer + Hit '?': + [q, b, e, ?] ........ + tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0xef6, ter=0x0 + Hit '?': + [q, b, e, ?] . + tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0x2ad4, ter=0x0 + Hit '?': + [q, b, e, ?] . + tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0x1efc, ter=0x0 + Hit '?': + [q, b, e, ?] . + tgcr=0x1, tmr=0xff1c, trr=0x3d09, tcr=0x0, tcn=0x169d, ter=0x0 + Hit 'e': + [q, b, e, ?] ...Stopping timer + Hit 'q': + [q, b, e, ?] ## Application terminated, rc = 0x0 + + + Minicom warning: + ================ + + Over time, many people have reported problems when trying to use the + "minicom" terminal emulation program for serial download. I (wd) + consider minicom to be broken, and recommend not to use it. Under + Unix, I recommend to use C-Kermit for general purpose use (and + especially for kermit binary protocol download ("loadb" command), and + use "cu" for S-Record download ("loads" command). + + Nevertheless, if you absolutely want to use it try adding this + configuration to your "File transfer protocols" section: + + Name Program Name U/D FullScr IO-Red. Multi + X kermit /usr/bin/kermit -i -l %l -s Y U Y N N + Y kermit /usr/bin/kermit -i -l %l -r N D Y N N + + + NetBSD Notes: + ============= + + Starting at version 0.9.2, U-Boot supports NetBSD both as host + (build U-Boot) and target system (boots NetBSD/mpc8xx). + + Building requires a cross environment; it is known to work on + NetBSD/i386 with the cross-powerpc-netbsd-1.3 package (you will also + need gmake since the Makefiles are not compatible with BSD make). + Note that the cross-powerpc package does not install include files; + attempting to build U-Boot will fail because <machine/ansi.h> is + missing. This file has to be installed and patched manually: + + # cd /usr/pkg/cross/powerpc-netbsd/include + # mkdir powerpc + # ln -s powerpc machine + # cp /usr/src/sys/arch/powerpc/include/ansi.h powerpc/ansi.h + # ${EDIT} powerpc/ansi.h ## must remove __va_list, _BSD_VA_LIST + + Native builds *don't* work due to incompatibilities between native + and U-Boot include files. + + Booting assumes that (the first part of) the image booted is a + stage-2 loader which in turn loads and then invokes the kernel + proper. Loader sources will eventually appear in the NetBSD source + tree (probably in sys/arc/mpc8xx/stand/u-boot_stage2/); in the + meantime, send mail to bruno@exet-ag.de and/or wd@denx.de for + details. + + + Implementation Internals: + ========================= + + The following is not intended to be a complete description of every + implementation detail. However, it should help to understand the + inner workings of U-Boot and make it easier to port it to custom + hardware. + + + Initial Stack, Global Data: + --------------------------- + + The implementation of U-Boot is complicated by the fact that U-Boot + starts running out of ROM (flash memory), usually without access to + system RAM (because the memory controller is not initialized yet). + This means that we don't have writable Data or BSS segments, and BSS + is not initialized as zero. To be able to get a C environment working + at all, we have to allocate at least a minimal stack. Implementation + options for this are defined and restricted by the CPU used: Some CPU + models provide on-chip memory (like the IMMR area on MPC8xx and + MPC826x processors), on others (parts of) the data cache can be + locked as (mis-) used as memory, etc. + + Chris Hallinan posted a good summary of these issues to the + u-boot-users mailing list: + + Subject: RE: [U-Boot-Users] RE: More On Memory Bank x (nothingness)? + From: "Chris Hallinan" <clh@net1plus.com> + Date: Mon, 10 Feb 2003 16:43:46 -0500 (22:43 MET) + ... + + Correct me if I'm wrong, folks, but the way I understand it + is this: Using DCACHE as initial RAM for Stack, etc, does not + require any physical RAM backing up the cache. The cleverness + is that the cache is being used as a temporary supply of + necessary storage before the SDRAM controller is setup. It's + beyond the scope of this list to expain the details, but you + can see how this works by studying the cache architecture and + operation in the architecture and processor-specific manuals. + + OCM is On Chip Memory, which I believe the 405GP has 4K. It + is another option for the system designer to use as an + initial stack/ram area prior to SDRAM being available. Either + option should work for you. Using CS 4 should be fine if your + board designers haven't used it for something that would + cause you grief during the initial boot! It is frequently not + used. + + CFG_INIT_RAM_ADDR should be somewhere that won't interfere + with your processor/board/system design. The default value + you will find in any recent u-boot distribution in + Walnut405.h should work for you. I'd set it to a value larger + than your SDRAM module. If you have a 64MB SDRAM module, set + it above 400_0000. Just make sure your board has no resources + that are supposed to respond to that address! That code in + start.S has been around a while and should work as is when + you get the config right. + + -Chris Hallinan + DS4.COM, Inc. + + It is essential to remember this, since it has some impact on the C + code for the initialization procedures: + + * Initialized global data (data segment) is read-only. Do not attempt + to write it. + + * Do not use any unitialized global data (or implicitely initialized + as zero data - BSS segment) at all - this is undefined, initiali- + zation is performed later (when relocating to RAM). + + * Stack space is very limited. Avoid big data buffers or things like + that. + + Having only the stack as writable memory limits means we cannot use + normal global data to share information beween the code. But it + turned out that the implementation of U-Boot can be greatly + simplified by making a global data structure (gd_t) available to all + functions. We could pass a pointer to this data as argument to _all_ + functions, but this would bloat the code. Instead we use a feature of + the GCC compiler (Global Register Variables) to share the data: we + place a pointer (gd) to the global data into a register which we + reserve for this purpose. + + When choosing a register for such a purpose we are restricted by the + relevant (E)ABI specifications for the current architecture, and by + GCC's implementation. + + For PowerPC, the following registers have specific use: + R1: stack pointer + R2: TOC pointer + R3-R4: parameter passing and return values + R5-R10: parameter passing + R13: small data area pointer + R30: GOT pointer + R31: frame pointer + + (U-Boot also uses R14 as internal GOT pointer.) + + ==> U-Boot will use R29 to hold a pointer to the global data + + Note: on PPC, we could use a static initializer (since the + address of the global data structure is known at compile time), + but it turned out that reserving a register results in somewhat + smaller code - although the code savings are not that big (on + average for all boards 752 bytes for the whole U-Boot image, + 624 text + 127 data). + + On ARM, the following registers are used: + + R0: function argument word/integer result + R1-R3: function argument word + R9: GOT pointer + R10: stack limit (used only if stack checking if enabled) + R11: argument (frame) pointer + R12: temporary workspace + R13: stack pointer + R14: link register + R15: program counter + + ==> U-Boot will use R8 to hold a pointer to the global data + + + Memory Management: + ------------------ + + U-Boot runs in system state and uses physical addresses, i.e. the + MMU is not used either for address mapping nor for memory protection. + + The available memory is mapped to fixed addresses using the memory + controller. In this process, a contiguous block is formed for each + memory type (Flash, SDRAM, SRAM), even when it consists of several + physical memory banks. + + U-Boot is installed in the first 128 kB of the first Flash bank (on + TQM8xxL modules this is the range 0x40000000 ... 0x4001FFFF). After + booting and sizing and initializing DRAM, the code relocates itself + to the upper end of DRAM. Immediately below the U-Boot code some + memory is reserved for use by malloc() [see CFG_MALLOC_LEN + configuration setting]. Below that, a structure with global Board + Info data is placed, followed by the stack (growing downward). + + Additionally, some exception handler code is copied to the low 8 kB + of DRAM (0x00000000 ... 0x00001FFF). + + So a typical memory configuration with 16 MB of DRAM could look like + this: + + 0x0000 0000 Exception Vector code + : + 0x0000 1FFF + 0x0000 2000 Free for Application Use + : + : + + : + : + 0x00FB FF20 Monitor Stack (Growing downward) + 0x00FB FFAC Board Info Data and permanent copy of global data + 0x00FC 0000 Malloc Arena + : + 0x00FD FFFF + 0x00FE 0000 RAM Copy of Monitor Code + ... eventually: LCD or video framebuffer + ... eventually: pRAM (Protected RAM - unchanged by reset) + 0x00FF FFFF [End of RAM] + + + System Initialization: + ---------------------- + + In the reset configuration, U-Boot starts at the reset entry point + (on most PowerPC systens at address 0x00000100). Because of the reset + configuration for CS0# this is a mirror of the onboard Flash memory. + To be able to re-map memory U-Boot then jumps to its link address. + To be able to implement the initialization code in C, a (small!) + initial stack is set up in the internal Dual Ported RAM (in case CPUs + which provide such a feature like MPC8xx or MPC8260), or in a locked + part of the data cache. After that, U-Boot initializes the CPU core, + the caches and the SIU. + + Next, all (potentially) available memory banks are mapped using a + preliminary mapping. For example, we put them on 512 MB boundaries + (multiples of 0x20000000: SDRAM on 0x00000000 and 0x20000000, Flash + on 0x40000000 and 0x60000000, SRAM on 0x80000000). Then UPM A is + programmed for SDRAM access. Using the temporary configuration, a + simple memory test is run that determines the size of the SDRAM + banks. + + When there is more than one SDRAM bank, and the banks are of + different size, the largest is mapped first. For equal size, the first + bank (CS2#) is mapped first. The first mapping is always for address + 0x00000000, with any additional banks following immediately to create + contiguous memory starting from 0. + + Then, the monitor installs itself at the upper end of the SDRAM area + and allocates memory for use by malloc() and for the global Board + Info data; also, the exception vector code is copied to the low RAM + pages, and the final stack is set up. + + Only after this relocation will you have a "normal" C environment; + until that you are restricted in several ways, mostly because you are + running from ROM, and because the code will have to be relocated to a + new address in RAM. + + + U-Boot Porting Guide: + ---------------------- + + [Based on messages by Jerry Van Baren in the U-Boot-Users mailing + list, October 2002] + + + int main (int argc, char *argv[]) + { + sighandler_t no_more_time; + + signal (SIGALRM, no_more_time); + alarm (PROJECT_DEADLINE - toSec (3 * WEEK)); + + if (available_money > available_manpower) { + pay consultant to port U-Boot; + return 0; + } + + Download latest U-Boot source; + + Subscribe to u-boot-users mailing list; + + if (clueless) { + email ("Hi, I am new to U-Boot, how do I get started?"); + } + + while (learning) { + Read the README file in the top level directory; + Read http://www.denx.de/twiki/bin/view/DULG/Manual ; + Read the source, Luke; + } + + if (available_money > toLocalCurrency ($2500)) { + Buy a BDI2000; + } else { + Add a lot of aggravation and time; + } + + Create your own board support subdirectory; + + Create your own board config file; + + while (!running) { + do { + Add / modify source code; + } until (compiles); + Debug; + if (clueless) + email ("Hi, I am having problems..."); + } + Send patch file to Wolfgang; - if (available_money > available_manpower) { - pay consultant to port U-Boot; return 0; } - Download latest U-Boot source; - - Subscribe to u-boot-users mailing list; - - if (clueless) { - email ("Hi, I am new to U-Boot, how do I get started?"); - } - - while (learning) { - Read the README file in the top level directory; - Read http://www.denx.de/twiki/bin/view/DULG/Manual ; - Read the source, Luke; - } - - if (available_money > toLocalCurrency ($2500)) { - Buy a BDI2000; - } else { - Add a lot of aggravation and time; + void no_more_time (int sig) + { + hire_a_guru(); } - Create your own board support subdirectory; - - Create your own board config file; - - while (!running) { - do { - Add / modify source code; - } until (compiles); - Debug; - if (clueless) - email ("Hi, I am having problems..."); - } - Send patch file to Wolfgang; - - return 0; -} - -void no_more_time (int sig) -{ - hire_a_guru(); -} - -Coding Standards: ------------------ + Coding Standards: + ----------------- -All contributions to U-Boot should conform to the Linux kernel -coding style; see the file "Documentation/CodingStyle" in your Linux -kernel source directory. + All contributions to U-Boot should conform to the Linux kernel + coding style; see the file "Documentation/CodingStyle" in your Linux + kernel source directory. -Please note that U-Boot is implemented in C (and to some small parts -in Assembler); no C++ is used, so please do not use C++ style -comments (//) in your code. + Please note that U-Boot is implemented in C (and to some small parts + in Assembler); no C++ is used, so please do not use C++ style + comments (//) in your code. -Please also stick to the following formatting rules: -- remove any trailing white space -- use TAB characters for indentation, not spaces -- make sure NOT to use DOS '\r\n' line feeds -- do not add more than 2 empty lines to source files -- do not add trailing empty lines to source files + Please also stick to the following formatting rules: + - remove any trailing white space + - use TAB characters for indentation, not spaces + - make sure NOT to use DOS '\r\n' line feeds + - do not add more than 2 empty lines to source files + - do not add trailing empty lines to source files -Submissions which do not conform to the standards may be returned -with a request to reformat the changes. + Submissions which do not conform to the standards may be returned + with a request to reformat the changes. -Submitting Patches: -------------------- + Submitting Patches: + ------------------- -Since the number of patches for U-Boot is growing, we need to -establish some rules. Submissions which do not conform to these rules -may be rejected, even when they contain important and valuable stuff. + Since the number of patches for U-Boot is growing, we need to + establish some rules. Submissions which do not conform to these rules + may be rejected, even when they contain important and valuable stuff. -When you send a patch, please include the following information with -it: + When you send a patch, please include the following information with + it: -* For bug fixes: a description of the bug and how your patch fixes - this bug. Please try to include a way of demonstrating that the - patch actually fixes something. + * For bug fixes: a description of the bug and how your patch fixes + this bug. Please try to include a way of demonstrating that the + patch actually fixes something. -* For new features: a description of the feature and your - implementation. + * For new features: a description of the feature and your + implementation. -* A CHANGELOG entry as plaintext (separate from the patch) + * A CHANGELOG entry as plaintext (separate from the patch) -* For major contributions, your entry to the CREDITS file + * For major contributions, your entry to the CREDITS file -* When you add support for a new board, don't forget to add this - board to the MAKEALL script, too. + * When you add support for a new board, don't forget to add this + board to the MAKEALL script, too. -* If your patch adds new configuration options, don't forget to - document these in the README file. + * If your patch adds new configuration options, don't forget to + document these in the README file. -* The patch itself. If you are accessing the CVS repository use "cvs - update; cvs diff -puRN"; else, use "diff -purN OLD NEW". If your - version of diff does not support these options, then get the latest - version of GNU diff. + * The patch itself. If you are accessing the CVS repository use "cvs + update; cvs diff -puRN"; else, use "diff -purN OLD NEW". If your + version of diff does not support these options, then get the latest + version of GNU diff. - The current directory when running this command shall be the top - level directory of the U-Boot source tree, or it's parent directory - (i. e. please make sure that your patch includes sufficient - directory information for the affected files). + The current directory when running this command shall be the top + level directory of the U-Boot source tree, or it's parent directory + (i. e. please make sure that your patch includes sufficient + directory information for the affected files). - We accept patches as plain text, MIME attachments or as uuencoded - gzipped text. + We accept patches as plain text, MIME attachments or as uuencoded + gzipped text. -* If one logical set of modifications affects or creates several - files, all these changes shall be submitted in a SINGLE patch file. + * If one logical set of modifications affects or creates several + files, all these changes shall be submitted in a SINGLE patch file. -* Changesets that contain different, unrelated modifications shall be - submitted as SEPARATE patches, one patch per changeset. + * Changesets that contain different, unrelated modifications shall be + submitted as SEPARATE patches, one patch per changeset. -Notes: + Notes: -* Before sending the patch, run the MAKEALL script on your patched - source tree and make sure that no errors or warnings are reported - for any of the boards. + * Before sending the patch, run the MAKEALL script on your patched + source tree and make sure that no errors or warnings are reported + for any of the boards. -* Keep your modifications to the necessary minimum: A patch - containing several unrelated changes or arbitrary reformats will be - returned with a request to re-formatting / split it. + * Keep your modifications to the necessary minimum: A patch + containing several unrelated changes or arbitrary reformats will be + returned with a request to re-formatting / split it. -* If you modify existing code, make sure that your new code does not - add to the memory footprint of the code ;-) Small is beautiful! - When adding new features, these should compile conditionally only - (using #ifdef), and the resulting code with the new feature - disabled must not need more memory than the old code without your - modification. + * If you modify existing code, make sure that your new code does not + add to the memory footprint of the code ;-) Small is beautiful! + When adding new features, these should compile conditionally only + (using #ifdef), and the resulting code with the new feature + disabled must not need more memory than the old code without your + modification. diff --git a/board/jse/Makefile b/board/jse/Makefile new file mode 100644 index 0000000..0da27b6 --- /dev/null +++ b/board/jse/Makefile @@ -0,0 +1,44 @@ +# +# Copyright 2004 Picture Elements, Inc. +# Stephen Williams <steve@icarus.com> +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS = $(BOARD).o sdram.o flash.o host_bridge.o +SOBJS = init.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $(OBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +sinclude .depend + +######################################################################### diff --git a/board/jse/README.txt b/board/jse/README.txt new file mode 100644 index 0000000..84497db --- /dev/null +++ b/board/jse/README.txt @@ -0,0 +1,48 @@ +JSE Configuration Details + +Memory Bank 0 -- Flash chip +--------------------------- + +0xfff00000 - 0xffffffff + +The flash chip is really only 512Kbytes, but the high address bit of +the 1Meg region is ignored, so the flash is replicated through the +region. Thus, this is consistent with a flash base address 0xfff80000. + +The placement at the end is to be consistent with reset behavior, +where the processor itself initially uses this bus to load the branch +vector and start running. + +On-Chip Memory +-------------- + +0xf4000000 - 0xf4000fff + +The 405GPr includes a 4K on-chip memory that can be placed however +software chooses. I choose to place the memory at this address, to +keep it out of the cachable areas. + + +Memory Bank 1 -- SystemACE Controller +------------------------------------- + +0xf0000000 - 0xf00fffff + +The SystemACE chip is along on peripheral bank CS#1. We don't need +much space, but 1Meg is the smallest we can configure the chip to +allocate. We need it far away from the flash region, because this +region is set to be non-cached. + + +Internal Peripherals +-------------------- + +0xef600300 - 0xef6008ff + +These are scattered various peripherals internal to the PPC405GPr +chip. + +SDRAM +----- + +0x00000000 - 0x07ffffff (128 MBytes) diff --git a/board/jse/config.mk b/board/jse/config.mk new file mode 100644 index 0000000..03ec085 --- /dev/null +++ b/board/jse/config.mk @@ -0,0 +1,24 @@ +# +# (C) Copyright 2003 Picture Elements, Inc. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +# +# Picture Elements, Inc. JSE boards +# + +TEXT_BASE = 0xFFF80000 diff --git a/board/jse/flash.c b/board/jse/flash.c new file mode 100644 index 0000000..a86ac1a --- /dev/null +++ b/board/jse/flash.c @@ -0,0 +1,671 @@ +/* + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * Modified 4/5/2001 + * Wait for completion of each sector erase command issued + * 4/5/2001 + * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com + */ + +#include <common.h> +#include <ppc4xx.h> +#include <asm/processor.h> + +#if CFG_MAX_FLASH_BANKS != 1 +#error "CFG_MAX_FLASH_BANKS must be 1" +#endif +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +/*----------------------------------------------------------------------- + * Functions + */ +static ulong flash_get_size (vu_long * addr, flash_info_t * info); +static int write_word (flash_info_t * info, ulong dest, ulong data); +static void flash_get_offsets (ulong base, flash_info_t * info); + +#define ADDR0 0x5555 +#define ADDR1 0x2aaa +#define FLASH_WORD_SIZE unsigned char + +/*----------------------------------------------------------------------- + */ + +unsigned long flash_init (void) +{ + unsigned long size_b0; + unsigned long base_b0; + + /* Init: no FLASHes known */ + flash_info[0].flash_id = FLASH_UNKNOWN; + + /* Static FLASH Bank configuration here - FIXME XXX */ + + size_b0 = + flash_get_size ((vu_long *) FLASH_BASE0_PRELIM, + &flash_info[0]); + + if (flash_info[0].flash_id == FLASH_UNKNOWN) { + printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", size_b0, size_b0 << 20); + } + + /* Only one bank */ + /* Setup offsets */ + flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); + + /* Monitor protection ON by default */ + (void) flash_protect (FLAG_PROTECT_SET, + FLASH_BASE0_PRELIM, + FLASH_BASE0_PRELIM + monitor_flash_len - 1, + &flash_info[0]); + flash_info[0].size = size_b0; + + return size_b0; +} + + +/*----------------------------------------------------------------------- + */ +static void flash_get_offsets (ulong base, flash_info_t * info) +{ + int i; + + /* set up sector start address table */ + if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || + (info->flash_id == FLASH_AM040)) { + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + } else { + if (info->flash_id & FLASH_BTYPE) { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00004000; + info->start[2] = base + 0x00006000; + info->start[3] = base + 0x00008000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = + base + (i * 0x00010000) - 0x00030000; + } + } else { + /* set sector offsets for top boot block type */ + i = info->sector_count - 1; + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00006000; + info->start[i--] = base + info->size - 0x00008000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00010000; + } + } + } +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t * info) +{ + int i; + int k; + int size; + int erased; + volatile unsigned long *flash; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_AMD: + printf ("AMD "); + break; + case FLASH_MAN_FUJ: + printf ("FUJITSU "); + break; + case FLASH_MAN_SST: + printf ("SST "); + break; + default: + printf ("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_AM040: + printf ("AM29F040 (512 Kbit, uniform sector size)\n"); + break; + case FLASH_AM400B: + printf ("AM29LV400B (4 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM400T: + printf ("AM29LV400T (4 Mbit, top boot sector)\n"); + break; + case FLASH_AM800B: + printf ("AM29LV800B (8 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM800T: + printf ("AM29LV800T (8 Mbit, top boot sector)\n"); + break; + case FLASH_AM160B: + printf ("AM29LV160B (16 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM160T: + printf ("AM29LV160T (16 Mbit, top boot sector)\n"); + break; + case FLASH_AM320B: + printf ("AM29LV320B (32 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM320T: + printf ("AM29LV320T (32 Mbit, top boot sector)\n"); + break; + case FLASH_SST800A: + printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n"); + break; + case FLASH_SST160A: + printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n"); + break; + default: + printf ("Unknown Chip Type\n"); + break; + } + + printf (" Size: %ld KB in %d Sectors\n", + info->size >> 10, info->sector_count); + + printf (" Sector Start Addresses:"); + for (i = 0; i < info->sector_count; ++i) { + /* + * Check if whole sector is erased + */ + if (i != (info->sector_count - 1)) + size = info->start[i + 1] - info->start[i]; + else + size = info->start[0] + info->size - info->start[i]; + erased = 1; + flash = (volatile unsigned long *) info->start[i]; + size = size >> 2; /* divide by 4 for longword access */ + for (k = 0; k < size; k++) { + if (*flash++ != 0xffffffff) { + erased = 0; + break; + } + } + + if ((i % 5) == 0) + printf ("\n "); +#if 0 /* test-only */ + printf (" %08lX%s", + info->start[i], info->protect[i] ? " (RO)" : " " +#else + printf (" %08lX%s%s", + info->start[i], + erased ? " E" : " ", info->protect[i] ? "RO " : " " +#endif + ); + } + printf ("\n"); + return; +} + +/*----------------------------------------------------------------------- + */ + + +/*----------------------------------------------------------------------- + */ + +/* + * The following code cannot be run from FLASH! + */ +static ulong flash_get_size (vu_long * addr, flash_info_t * info) +{ + short i; + FLASH_WORD_SIZE value; + ulong base = (ulong) addr; + volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) addr; + + /* Write auto select command: read Manufacturer ID */ + addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055; + addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00900090; + +#ifdef CONFIG_ADCIOP + value = addr2[2]; +#else + value = addr2[0]; +#endif + + switch (value) { + case (FLASH_WORD_SIZE) AMD_MANUFACT: + info->flash_id = FLASH_MAN_AMD; + break; + case (FLASH_WORD_SIZE) FUJ_MANUFACT: + info->flash_id = FLASH_MAN_FUJ; + break; + case (FLASH_WORD_SIZE) SST_MANUFACT: + info->flash_id = FLASH_MAN_SST; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + return (0); /* no or unknown flash */ + } + +#ifdef CONFIG_ADCIOP + value = addr2[0]; /* device ID */ + /* printf("\ndev_code=%x\n", value); */ +#else + value = addr2[1]; /* device ID */ +#endif + + switch (value) { + case (FLASH_WORD_SIZE) AMD_ID_F040B: + info->flash_id += FLASH_AM040; + info->sector_count = 8; + info->size = 0x0080000; /* => 512 ko */ + break; + case (FLASH_WORD_SIZE) AMD_ID_LV040B: + info->flash_id += FLASH_AM040; + info->sector_count = 8; + info->size = 0x0080000; /* => 512 ko */ + break; + case (FLASH_WORD_SIZE) AMD_ID_LV400T: + info->flash_id += FLASH_AM400T; + info->sector_count = 11; + info->size = 0x00080000; + break; /* => 0.5 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV400B: + info->flash_id += FLASH_AM400B; + info->sector_count = 11; + info->size = 0x00080000; + break; /* => 0.5 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV800T: + info->flash_id += FLASH_AM800T; + info->sector_count = 19; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV800B: + info->flash_id += FLASH_AM800B; + info->sector_count = 19; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV160T: + info->flash_id += FLASH_AM160T; + info->sector_count = 35; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV160B: + info->flash_id += FLASH_AM160B; + info->sector_count = 35; + info->size = 0x00200000; + break; /* => 2 MB */ +#if 0 /* enable when device IDs are available */ + case (FLASH_WORD_SIZE) AMD_ID_LV320T: + info->flash_id += FLASH_AM320T; + info->sector_count = 67; + info->size = 0x00400000; + break; /* => 4 MB */ + + case (FLASH_WORD_SIZE) AMD_ID_LV320B: + info->flash_id += FLASH_AM320B; + info->sector_count = 67; + info->size = 0x00400000; + break; /* => 4 MB */ +#endif + case (FLASH_WORD_SIZE) SST_ID_xF800A: + info->flash_id += FLASH_SST800A; + info->sector_count = 16; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (FLASH_WORD_SIZE) SST_ID_xF160A: + info->flash_id += FLASH_SST160A; + info->sector_count = 32; + info->size = 0x00200000; + break; /* => 2 MB */ + + default: + info->flash_id = FLASH_UNKNOWN; + return (0); /* => no or unknown flash */ + + } + + /* set up sector start address table */ + if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || + (info->flash_id == FLASH_AM040)) { + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + } else { + if (info->flash_id & FLASH_BTYPE) { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00004000; + info->start[2] = base + 0x00006000; + info->start[3] = base + 0x00008000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = + base + (i * 0x00010000) - 0x00030000; + } + } else { + /* set sector offsets for top boot block type */ + i = info->sector_count - 1; + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00006000; + info->start[i--] = base + info->size - 0x00008000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00010000; + } + } + } + + /* check for protected sectors */ + for (i = 0; i < info->sector_count; i++) { + /* read sector protection at sector address, (A7 .. A0) = 0x02 */ + /* D0 = 1 if protected */ +#ifdef CONFIG_ADCIOP + addr2 = (volatile FLASH_WORD_SIZE *) (info->start[i]); + info->protect[i] = addr2[4] & 1; +#else + addr2 = (volatile FLASH_WORD_SIZE *) (info->start[i]); + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) + info->protect[i] = 0; + else + info->protect[i] = addr2[2] & 1; +#endif + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { +#if 0 /* test-only */ +#ifdef CONFIG_ADCIOP + addr2 = (volatile unsigned char *) info->start[0]; + addr2[ADDR0] = 0xAA; + addr2[ADDR1] = 0x55; + addr2[ADDR0] = 0xF0; /* reset bank */ +#else + addr2 = (FLASH_WORD_SIZE *) info->start[0]; + *addr2 = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ +#endif +#else /* test-only */ + addr2 = (FLASH_WORD_SIZE *) info->start[0]; + *addr2 = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ +#endif /* test-only */ + } + + return (info->size); +} + +int wait_for_DQ7 (flash_info_t * info, int sect) +{ + ulong start, now, last; + volatile FLASH_WORD_SIZE *addr = + (FLASH_WORD_SIZE *) (info->start[sect]); + + start = get_timer (0); + last = start; + while ((addr[0] & (FLASH_WORD_SIZE) 0x00800080) != + (FLASH_WORD_SIZE) 0x00800080) { + if ((now = get_timer (start)) > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + return -1; + } + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } + } + return 0; +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t * info, int s_first, int s_last) +{ + volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *) (info->start[0]); + volatile FLASH_WORD_SIZE *addr2; + int flag, prot, sect, l_sect; + int i; + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("Can't erase unknown flash type - aborted\n"); + return 1; + } + + prot = 0; + for (sect = s_first; sect <= s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", prot); + } else { + printf ("\n"); + } + + l_sect = -1; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + addr2 = (FLASH_WORD_SIZE *) (info->start[sect]); + printf ("Erasing sector %p\n", addr2); /* CLH */ + + if ((info->flash_id & FLASH_VENDMASK) == + FLASH_MAN_SST) { + addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055; + addr[ADDR0] = (FLASH_WORD_SIZE) 0x00800080; + addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055; + addr2[0] = (FLASH_WORD_SIZE) 0x00500050; /* block erase */ + for (i = 0; i < 50; i++) + udelay (1000); /* wait 1 ms */ + } else { + addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055; + addr[ADDR0] = (FLASH_WORD_SIZE) 0x00800080; + addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055; + addr2[0] = (FLASH_WORD_SIZE) 0x00300030; /* sector erase */ + } + l_sect = sect; + /* + * Wait for each sector to complete, it's more + * reliable. According to AMD Spec, you must + * issue all erase commands within a specified + * timeout. This has been seen to fail, especially + * if printf()s are included (for debug)!! + */ + wait_for_DQ7 (info, sect); + } + } + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts (); + + /* wait at least 80us - let's wait 1 ms */ + udelay (1000); + +#if 0 + /* + * We wait for the last triggered sector + */ + if (l_sect < 0) + goto DONE; + wait_for_DQ7 (info, l_sect); + + DONE: +#endif + /* reset to read mode */ + addr = (FLASH_WORD_SIZE *) info->start[0]; + addr[0] = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ + + printf (" done\n"); + return 0; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ + +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int i, l, rc; + + wp = (addr & ~3); /* get lower word aligned address */ + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i = 0, cp = wp; i < l; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + for (; i < 4 && cnt > 0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt == 0 && i < 4; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + + if ((rc = write_word (info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = 0; + for (i = 0; i < 4; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_word (info, wp, data)) != 0) { + return (rc); + } + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i < 4; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + + return (write_word (info, wp, data)); +} + +/*----------------------------------------------------------------------- + * Write a word to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_word (flash_info_t * info, ulong dest, ulong data) +{ + volatile FLASH_WORD_SIZE *addr2 = + (FLASH_WORD_SIZE *) (info->start[0]); + volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *) dest; + volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *) & data; + ulong start; + int i; + + /* Check if Flash is (sufficiently) erased */ + if ((*((volatile FLASH_WORD_SIZE *) dest) & + (FLASH_WORD_SIZE) data) != (FLASH_WORD_SIZE) data) { + return (2); + } + + for (i = 0; i < 4 / sizeof (FLASH_WORD_SIZE); i++) { + int flag; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA; + addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055; + addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00A000A0; + + dest2[i] = data2[i]; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts (); + + /* data polling for D7 */ + start = get_timer (0); + while ((dest2[i] & (FLASH_WORD_SIZE) 0x00800080) != + (data2[i] & (FLASH_WORD_SIZE) 0x00800080)) { + + if (get_timer (start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + } + } + + return (0); +} diff --git a/board/jse/host_bridge.c b/board/jse/host_bridge.c new file mode 100644 index 0000000..d687445 --- /dev/null +++ b/board/jse/host_bridge.c @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form under the terms of the GNU + * General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ +#ident "$Id:$" + +# include <common.h> +# include <pci.h> +# include "jse_priv.h" + +/* + * The JSE board has an Intel 21555 non-transparent bridge for + * communication with the host. We need to render it harmless on the + * JSE side, but leave it alone on the host (primary) side. Normally, + * this will all be done before the host BIOS can gain access to the + * board, due to the Primary Access Lockout bit. + * + * The host_bridge_init function is called as a late initialization + * function, after most of the board is set up, including a PCI scan. + */ + +void host_bridge_init (void) +{ + /* The bridge chip is at a fixed location. */ + pci_dev_t dev = PCI_BDF (0, 10, 0); + + int rc; + u32 val32; + + rc = pci_read_config_dword (dev, 0, &val32); + + /* Set subsystem ID -- + The primary side sees this value at 0x2c. We set it here so + that the host can tell what sort of device this is: + We are a Picture Elements [0x12c5] JSE [0x008a]. */ + pci_write_config_dword (dev, 0x6c, 0x008a12c5); + + /* Downstream (Primary-to-Secondary) BARs are set up mostly + off. We need only the Memory-0 Bar so that the host can get + at the CSR region to set up tables and the lot. */ + + /* Downstream Memory 0 setup (4K for CSR) */ + pci_write_config_dword (dev, 0xac, 0xfffff000); + /* Downstream Memory 1 setup (off) */ + pci_write_config_dword (dev, 0xb0, 0x00000000); + /* Downstream Memory 2 setup (off) */ + pci_write_config_dword (dev, 0xb4, 0x00000000); + /* Downstream Memory 3 setup (off) */ + pci_write_config_dword (dev, 0xb8, 0x00000000); + + /* Upstream (Secondary-to-Primary) BARs are used to get at + host memory from the JSE card. Create two regions: a small + one to manage individual word reads/writes, and a larger + one for doing bulk frame moves. */ + + /* Upstream Memory 0 Setup -- (BAR2) 4K non-prefetchable */ + pci_write_config_dword (dev, 0xc4, 0xfffff000); + /* Upstream Memory 1 setup -- (BAR3) 4K non-prefetchable */ + pci_write_config_dword (dev, 0xc8, 0xfffff000); + + /* Upstream Memory 2 (BAR4) uses page translation, and is set + up in CCR1. Configure for 4K pages. */ + + /* Set CCR1,0 reigsters. This clears the Primary PCI Lockout + bit as well, so we are done configuring after this + point. Therefore, this must be the last step. + + CC1[15:12]= 0 (disable I2O message unit) + CC1[11:8] = 0x5 (4K page size) + CC0[11] = 1 (Secondary Clock Disable: disable clock) + CC0[10] = 0 (Primary Access Lockout: allow primary access) + */ + pci_write_config_dword (dev, 0xcc, 0x05000800); +} diff --git a/board/jse/init.S b/board/jse/init.S new file mode 100644 index 0000000..231cd1c --- /dev/null +++ b/board/jse/init.S @@ -0,0 +1,105 @@ +/*------------------------------------------------------------------------+ */ +/* */ +/* This source code has been made available to you by IBM on an AS-IS */ +/* basis. Anyone receiving this source is licensed under IBM */ +/* copyrights to use it in any way he or she deems fit, including */ +/* copying it, modifying it, compiling it, and redistributing it either */ +/* with or without modifications. No license under IBM patents or */ +/* patent applications is to be implied by the copyright license. */ +/* */ +/* Any user of this software should understand that IBM cannot provide */ +/* technical support for this software and will not be responsible for */ +/* any consequences resulting from the use of this software. */ +/* */ +/* Any person who transfers this source code or any derivative work */ +/* must include the IBM copyright notice, this paragraph, and the */ +/* preceding two paragraphs in the transferred software. */ +/* */ +/* COPYRIGHT I B M CORPORATION 1995 */ +/* LICENSED MATERIAL - PROGRAM PROPERTY OF I B M */ +/*------------------------------------------------------------------------- */ + +/*------------------------------------------------------------------------- */ +/* Function: ext_bus_cntlr_init */ +/* Description: Initializes the External Bus Controller for the external */ +/* peripherals. IMPORTANT: For pass1 this code must run from */ +/* cache since you can not reliably change a peripheral banks */ +/* timing register (pbxap) while running code from that bank. */ +/* For ex., since we are running from ROM on bank 0, we can NOT */ +/* execute the code that modifies bank 0 timings from ROM, so */ +/* we run it from cache. */ +/* */ +/* */ +/* The layout for the PEI JSE board: */ +/* Bank 0 - Flash and SRAM */ +/* Bank 1 - SystemACE */ +/* Bank 2 - not used */ +/* Bank 3 - not used */ +/* Bank 4 - not used */ +/* Bank 5 - not used */ +/* Bank 6 - not used */ +/* Bank 7 - not used */ +/*------------------------------------------------------------------------- */ +#include <ppc4xx.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#define cpc0_cr0 0xB1 + + .globl ext_bus_cntlr_init +ext_bus_cntlr_init: + mflr r4 /* save link register */ + bl ..getAddr +..getAddr: + mflr r3 /* get address of ..getAddr */ + mtlr r4 /* restore link register */ + addi r4,0,14 /* set ctr to 10; used to prefetch */ + mtctr r4 /* 10 cache lines to fit this function */ + /* in cache (gives us 8x10=80 instrctns) */ +..ebcloop: + icbt r0,r3 /* prefetch cache line for addr in r3 */ + addi r3,r3,32 /* move to next cache line */ + bdnz ..ebcloop /* continue for 10 cache lines */ + + /*----------------------------------------------------------------- */ + /* Delay to ensure all accesses to ROM are complete before changing */ + /* bank 0 timings. 200usec should be enough. */ + /* 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles */ + /*----------------------------------------------------------------- */ + addis r3,0,0x0 + ori r3,r3,0xA000 /* ensure 200usec have passed since reset */ + mtctr r3 +..spinlp: + bdnz ..spinlp /* spin loop */ + + /*----------------------------------------------------------------- */ + /* Memory Bank 0 (Flash) initialization */ + /*----------------------------------------------------------------- */ + + addi r4,0,pb0ap + mtdcr ebccfga,r4 + addis r4,0,0x9B01 + ori r4,r4,0x5480 + mtdcr ebccfgd,r4 + + addi r4,0,pb0cr + mtdcr ebccfga,r4 + addis r4,0,0xFFF1 /* BAS=0xFFF,BS=0x0(1MB),BU=0x3(R/W), */ + ori r4,r4,0x8000 /* BW=0x0( 8 bits) */ + mtdcr ebccfgd,r4 + + blr + + +/*----------------------------------------------------------------------- */ +/* Function: sdram_init */ +/* Description: This function is called by cpu/ppc4xx/start.S code */ +/* to get the SDRAM initialized. */ +/*----------------------------------------------------------------------- */ + .globl sdram_init +sdram_init: + blr diff --git a/board/jse/jse.c b/board/jse/jse.c new file mode 100644 index 0000000..9290814 --- /dev/null +++ b/board/jse/jse.c @@ -0,0 +1,160 @@ +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form under the terms of the GNU + * General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +# include <common.h> +# include <ppc4xx.h> +# include <asm/processor.h> +# include <asm/io.h> +# include "jse_priv.h" + +/* + * This function is run very early, out of flash, and before devices are + * initialized. It is called by lib_ppc/board.c:board_init_f by virtue + * of being in the init_sequence array. + * + * The SDRAM has been initialized already -- start.S:start called + * init.S:init_sdram early on -- but it is not yet being used for + * anything, not even stack. So be careful. + */ +int board_early_init_f (void) +{ + /*-------------------------------------------------------------------------+ + | Interrupt controller setup for the JSE board. + | Note: IRQ 0-15 405GP internally generated; active high; level sensitive + | IRQ 16 405GP internally generated; active low; level sensitive + | IRQ 17-24 RESERVED/UNUSED + | IRQ 25 (EXT IRQ 0) PCI SLOT 0; active low; level sensitive + | IRQ 26 (EXT IRQ 1) PCI SLOT 1; active low; level sensitive + | IRQ 27 (EXT IRQ 2) JP2C CHIP ; active low; level sensitive + | IRQ 28 (EXT IRQ 3) PCI bridge; active low; level sensitive + | IRQ 29 (EXT IRQ 4) SystemACE IRQ; active high + | IRQ 30 (EXT IRQ 5) SystemACE BRdy (unused) + | IRQ 31 (EXT IRQ 6) (unused) + +-------------------------------------------------------------------------*/ + mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */ + mtdcr (uicer, 0x00000000); /* disable all ints */ + mtdcr (uiccr, 0x00000000); /* set all to be non-critical */ + mtdcr (uicpr, 0xFFFFFF87); /* set int polarities */ + mtdcr (uictr, 0x10000000); /* set int trigger levels */ + mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */ + + /* Configure the interface to the SystemACE MCU port. + The SystemACE is fast, but there is no reason to have + excessivly tight timings. So the settings are slightly + generous. */ + + /* EBC0_B1AP: BME=1, TWT=2, CSN=0, OEN=1, + WBN=0, WBF=1, TH=0, RE=0, SOR=0, BEM=0, PEN=0 */ + mtdcr (ebccfga, pb1ap); + mtdcr (ebccfgd, 0x01011000); + + /* EBC0_B1CR: BAS=x, BS=0(1MB), BU=3(R/W), BW=0(8bits) */ + mtdcr (ebccfga, pb1cr); + mtdcr (ebccfgd, CFG_SYSTEMACE_BASE | 0x00018000); + + /* Enable the /PerWE output as /PerWE, instead of /PCIINT. */ + /* CPC0_CR1 |= PCIPW */ + mtdcr (0xb2, mfdcr (0xb2) | 0x00004000); + + return 0; +} + +#ifdef CONFIG_BOARD_PRE_INIT +int board_pre_init (void) +{ + return board_early_init_f (); +} + +#endif + +/* + * This function is also called by lib_ppc/board.c:board_init_f (it is + * also in the init_sequence array) but later. Many more things are + * configured, but we are still running from flash. + */ +int checkboard (void) +{ + unsigned vers, status; + + /* check that the SystemACE chip is alive. */ + printf ("ACE: "); + vers = readw (CFG_SYSTEMACE_BASE + 0x16); + printf ("SystemACE %u.%u (build %u)", + (vers >> 12) & 0x0f, (vers >> 8) & 0x0f, vers & 0xff); + + status = readl (CFG_SYSTEMACE_BASE + 0x04); +#ifdef DEBUG + printf (" STATUS=0x%08x", status); +#endif + /* If the flash card is present and there is an initial error, + then force a restart of the program. */ + if (status & 0x00000010) { + printf (" CFDETECT"); + + if (status & 0x04) { + /* CONTROLREG = CFGPROG */ + writew (0x1000, CFG_SYSTEMACE_BASE + 0x18); + udelay (500); + /* CONTROLREG = CFGRESET */ + writew (0x0080, CFG_SYSTEMACE_BASE + 0x18); + udelay (500); + writew (0x0000, CFG_SYSTEMACE_BASE + 0x18); + /* CONTROLREG = CFGSTART */ + writew (0x0020, CFG_SYSTEMACE_BASE + 0x18); + + status = readl (CFG_SYSTEMACE_BASE + 0x04); + } + } + + /* Wait for the SystemACE to program its chain of devices. */ + while ((status & 0x84) == 0x00) { + udelay (500); + status = readl (CFG_SYSTEMACE_BASE + 0x04); + } + + if (status & 0x04) + printf (" CFG-ERROR"); + if (status & 0x80) + printf (" CFGDONE"); + + printf ("\n"); + + /* Force /RTS to active. The board it not wired quite + correctly to use cts/rtc flow control, so just force the + /RST active and forget about it. */ + writeb (readb (0xef600404) | 0x03, 0xef600404); + + printf ("JSE: ready\n"); + + return 0; +} + +/* **** No more functions called by board_init_f. **** */ + +/* + * This function is called by lib_ppc/board.c:board_init_r. At this + * point, basic setup is done, U-Boot has been moved into SDRAM and + * PCI has been set up. From here we done late setup. + */ +int misc_init_r (void) +{ + host_bridge_init (); + return 0; +} diff --git a/board/jse/jse_priv.h b/board/jse/jse_priv.h new file mode 100644 index 0000000..ed4894b --- /dev/null +++ b/board/jse/jse_priv.h @@ -0,0 +1,25 @@ +#ifndef __jse_priv_H +#define __jse_prov_H +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form under the terms of the GNU + * General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +extern void host_bridge_init(void); + +#endif diff --git a/board/jse/sdram.c b/board/jse/sdram.c new file mode 100644 index 0000000..9060d97 --- /dev/null +++ b/board/jse/sdram.c @@ -0,0 +1,182 @@ +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form under the terms of the GNU + * General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#include <common.h> +#include <ppc4xx.h> +#include <asm/processor.h> + +# define SDRAM_LEN 0x08000000 + +/* + * this is even after checkboard. It returns the size of the SDRAM + * that we have installed. This function is called by board_init_f + * in lib_ppc/board.c to initialize the memory and return what I + * found. + */ +long int initdram (int board_type) +{ + /* Configure the SDRAMS */ + + /* disable memory controller */ + mtdcr (memcfga, mem_mcopt1); + mtdcr (memcfgd, 0x00000000); + + udelay (500); + + /* Clear SDRAM0_BESR0 (Bus Error Syndrome Register) */ + mtdcr (memcfga, mem_besra); + mtdcr (memcfgd, 0xffffffff); + + /* Clear SDRAM0_BESR1 (Bus Error Syndrome Register) */ + mtdcr (memcfga, mem_besrb); + mtdcr (memcfgd, 0xffffffff); + + /* Clear SDRAM0_ECCCFG (disable ECC) */ + mtdcr (memcfga, mem_ecccf); + mtdcr (memcfgd, 0x00000000); + + /* Clear SDRAM0_ECCESR (ECC Error Syndrome Register) */ + mtdcr (memcfga, mem_eccerr); + mtdcr (memcfgd, 0xffffffff); + + /* Timing register: CASL=2, PTA=2, CTP=2, LDF=1, RFTA=5, RCD=2 */ + mtdcr (memcfga, mem_sdtr1); + mtdcr (memcfgd, 0x010a4016); + + /* Memory Bank 0 Config == BA=0x00000000, SZ=64M, AM=3, BE=1 */ + mtdcr (memcfga, mem_mb0cf); + mtdcr (memcfgd, 0x00084001); + + /* Memory Bank 1 Config == BA=0x04000000, SZ=64M, AM=3, BE=1 */ + mtdcr (memcfga, mem_mb1cf); + mtdcr (memcfgd, 0x04084001); + + /* Memory Bank 2 Config == BE=0 */ + mtdcr (memcfga, mem_mb2cf); + mtdcr (memcfgd, 0x00000000); + + /* Memory Bank 3 Config == BE=0 */ + mtdcr (memcfga, mem_mb3cf); + mtdcr (memcfgd, 0x00000000); + + /* refresh timer = 0x400 */ + mtdcr (memcfga, mem_rtr); + mtdcr (memcfgd, 0x04000000); + + /* Power management idle timer set to the default. */ + mtdcr (memcfga, mem_pmit); + mtdcr (memcfgd, 0x07c00000); + + udelay (500); + + /* Enable banks (DCE=1, BPRF=1, ECCDD=1, EMDUL=1) */ + mtdcr (memcfga, mem_mcopt1); + mtdcr (memcfgd, 0x80e00000); + + return SDRAM_LEN; +} + +/* + * The U-Boot core, as part of the initialization to prepare for + * loading the monitor into SDRAM, requests of this function that the + * memory be tested. Return 0 if the memory tests OK. + */ +int testdram (void) +{ + unsigned long idx; + unsigned val; + unsigned errors; + volatile unsigned long *sdram; + +#ifdef DEBUG + printf ("SDRAM Controller Registers --\n"); + + mtdcr (memcfga, mem_mcopt1); + val = mfdcr (memcfgd); + printf (" SDRAM0_CFG : 0x%08x\n", val); + + mtdcr (memcfga, 0x24); + val = mfdcr (memcfgd); + printf (" SDRAM0_STATUS: 0x%08x\n", val); + + mtdcr (memcfga, mem_mb0cf); + val = mfdcr (memcfgd); + printf (" SDRAM0_B0CR : 0x%08x\n", val); + + mtdcr (memcfga, mem_mb1cf); + val = mfdcr (memcfgd); + printf (" SDRAM0_B1CR : 0x%08x\n", val); + + mtdcr (memcfga, mem_sdtr1); + val = mfdcr (memcfgd); + printf (" SDRAM0_TR : 0x%08x\n", val); + + mtdcr (memcfga, mem_rtr); + val = mfdcr (memcfgd); + printf (" SDRAM0_RTR : 0x%08x\n", val); +#endif + + /* Wait for memory to be ready by testing MRSCMPbit + bit. Really, there should already have been plenty of time, + given it was started long ago. But, best to check. */ + for (idx = 0; idx < 1000000; idx += 1) { + mtdcr (memcfga, 0x24); + val = mfdcr (memcfgd); + if (val & 0x80000000) + break; + } + + if (!(val & 0x80000000)) { + printf ("SDRAM ERROR: SDRAM0_STATUS never set!\n"); + return 1; + } + + /* Start memory test. */ + printf ("test: %u MB - ", SDRAM_LEN / 1048576); + + sdram = (unsigned long *) CFG_SDRAM_BASE; + + printf ("write - "); + for (idx = 2; idx < SDRAM_LEN / 4; idx += 2) { + sdram[idx + 0] = idx; + sdram[idx + 1] = ~idx; + } + + printf ("read - "); + errors = 0; + for (idx = 2; idx < SDRAM_LEN / 4; idx += 2) { + if (sdram[idx + 0] != idx) + errors += 1; + if (sdram[idx + 1] != ~idx) + errors += 1; + if (errors > 0) + break; + } + + if (errors > 0) { + printf ("NOT OK\n"); + printf ("FIRST ERROR at %p: 0x%08lx:0x%08lx != 0x%08lx:0x%08lx\n", + sdram + idx, sdram[idx + 0], sdram[idx + 1], idx, ~idx); + return 1; + } + + printf ("ok\n"); + return 0; +} diff --git a/board/jse/u-boot.lds b/board/jse/u-boot.lds new file mode 100644 index 0000000..3e54af7 --- /dev/null +++ b/board/jse/u-boot.lds @@ -0,0 +1,140 @@ +/* + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib); +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + .resetvec 0xFFFFFFFC : + { + *(.resetvec) + } = 0xffff + + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : { + /* The start.o file includes the initial jump vector that + must be located in the beginning. It is the basic run- + time function that calls all other functions. */ + cpu/ppc4xx/start.o (.text) + + board/jse/init.o (.text) + cpu/ppc4xx/kgdb.o (.text) + +/* . = env_offset;*/ +/* common/environment.o(.text)*/ + + *(.text) + *(.fixup) + *(.got1) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; + __fixup_entries = (. - _FIXUP_TABLE_)>>2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} diff --git a/common/cmd_ide.c b/common/cmd_ide.c index aad6127..baab871 100644 --- a/common/cmd_ide.c +++ b/common/cmd_ide.c @@ -782,15 +782,17 @@ set_pcmcia_timing (int pmode) /* ------------------------------------------------------------------------- */ -#ifdef __PPC__ +#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) static void __inline__ ide_outb(int dev, int port, unsigned char val) { - PRINTF ("ide_outb (dev= %d, port= %d, val= 0x%02x) : @ 0x%08lx\n", + PRINTF ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n", dev, port, val, (ATA_CURR_BASE(dev)+port)); /* Ensure I/O operations complete */ +#ifdef __PPC__ __asm__ volatile("eieio"); +#endif *((uchar *)(ATA_CURR_BASE(dev)+port)) = val; } #else /* ! __PPC__ */ @@ -802,15 +804,17 @@ ide_outb(int dev, int port, unsigned char val) #endif /* __PPC__ */ -#ifdef __PPC__ +#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) static unsigned char __inline__ ide_inb(int dev, int port) { uchar val; /* Ensure I/O operations complete */ +#ifdef __PPC__ __asm__ volatile("eieio"); +#endif val = *((uchar *)(ATA_CURR_BASE(dev)+port)); - PRINTF ("ide_inb (dev= %d, port= %d) : @ 0x%08lx -> 0x%02x\n", + PRINTF ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n", dev, port, (ATA_CURR_BASE(dev)+port), val); return (val); } @@ -856,6 +860,8 @@ input_swap_data(int dev, ulong *sect_buf, int words) volatile ushort *pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); ushort *dbuf = (ushort *)sect_buf; + PRINTF("in input swap data base for read is %lx\n", (unsigned long) pbuf); + while (words--) { *dbuf++ = ld_le16(pbuf); *dbuf++ = ld_le16(pbuf); @@ -878,7 +884,7 @@ input_swap_data(int dev, ulong *sect_buf, int words) #endif /* __LITTLE_ENDIAN || CONFIG_AU1X00 */ -#ifdef __PPC__ +#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) static void output_data(int dev, ulong *sect_buf, int words) { @@ -889,9 +895,13 @@ output_data(int dev, ulong *sect_buf, int words) pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; while (words--) { +#ifdef __PPC__ __asm__ volatile ("eieio"); +#endif *pbuf = *dbuf++; +#ifdef __PPC__ __asm__ volatile ("eieio"); +#endif *pbuf = *dbuf++; } #else /* CONFIG_HMI10 */ @@ -922,7 +932,7 @@ output_data(int dev, ulong *sect_buf, int words) } #endif /* __PPC__ */ -#ifdef __PPC__ +#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) static void input_data(int dev, ulong *sect_buf, int words) { @@ -932,10 +942,17 @@ input_data(int dev, ulong *sect_buf, int words) pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; + + PRINTF("in input data base for read is %lx\n", (unsigned long) pbuf); + while (words--) { +#ifdef __PPC__ __asm__ volatile ("eieio"); +#endif *dbuf++ = *pbuf; +#ifdef __PPC__ __asm__ volatile ("eieio"); +#endif *dbuf++ = *pbuf; } #else /* CONFIG_HMI10 */ @@ -1576,7 +1593,7 @@ static void ide_led (uchar led, uchar status) #define AT_PRINTF(fmt,args...) #endif -#ifdef __PPC__ +#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA) /* since ATAPI may use commands with not 4 bytes alligned length * we have our own transfer functions, 2 bytes alligned */ static void @@ -1588,8 +1605,13 @@ output_data_shorts(int dev, ushort *sect_buf, int shorts) pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; + + PRINTF("in output data shorts base for read is %lx\n", (unsigned long) pbuf); + while (shorts--) { +#ifdef __PPC__ __asm__ volatile ("eieio"); +#endif *pbuf = *dbuf++; } #else /* CONFIG_HMI10 */ @@ -1617,8 +1639,13 @@ input_data_shorts(int dev, ushort *sect_buf, int shorts) pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; + + PRINTF("in input data shorts base for read is %lx\n", (unsigned long) pbuf); + while (shorts--) { +#ifdef __PPC__ __asm__ volatile ("eieio"); +#endif *dbuf++ = *pbuf; } #else /* CONFIG_HMI10 */ diff --git a/common/cmd_pcmcia.c b/common/cmd_pcmcia.c index b7e57bf..47632e7 100644 --- a/common/cmd_pcmcia.c +++ b/common/cmd_pcmcia.c @@ -63,6 +63,9 @@ #if defined(CONFIG_LWMON) #include <i2c.h> #endif +#ifdef CONFIG_PXA_PCMCIA +#include <asm/arch/pxa-regs.h> +#endif #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) || \ ((CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)) @@ -86,7 +89,7 @@ static int hardware_disable(int slot); static int hardware_enable (int slot); static int voltage_set(int slot, int vcc, int vpp); -#ifndef CONFIG_I82365 +#if (! defined(CONFIG_I82365)) && (! defined(CONFIG_PXA_PCMCIA)) static u_int m8xx_get_graycode(u_int size); #endif /* CONFIG_I82365 */ #if 0 @@ -95,6 +98,8 @@ static u_int m8xx_get_speed(u_int ns, u_int is_io); /* -------------------------------------------------------------------- */ +#ifndef CONFIG_PXA_PCMCIA + /* look up table for pgcrx registers */ static u_int *pcmcia_pgcrx[2] = { @@ -106,13 +111,15 @@ static u_int *pcmcia_pgcrx[2] = { #endif /* CONFIG_I82365 */ -#ifdef CONFIG_IDE_8xx_PCCARD +#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA) static void print_funcid (int func); static void print_fixed (volatile uchar *p); static int identify (volatile uchar *p); static int check_ide_device (int slot); #endif /* CONFIG_IDE_8xx_PCCARD */ +#endif + const char *indent = "\t "; /* -------------------------------------------------------------------- */ @@ -151,8 +158,7 @@ int pcmcia_on (void) rc = i82365_init(); - if (rc == 0) - { + if (rc == 0) { rc = check_ide_device(0); } @@ -160,6 +166,8 @@ int pcmcia_on (void) } #else +#ifndef CONFIG_PXA_PCMCIA + #ifdef CONFIG_HMI10 # define HMI10_FRAM_TIMING (PCMCIA_SHT(2) | PCMCIA_SST(2) | PCMCIA_SL(4)) #endif @@ -280,8 +288,108 @@ int pcmcia_on (void) } return (rc); } + +#endif / CONFIG_PXA_PCMCIA */ + #endif /* CONFIG_I82365 */ +#ifdef CONFIG_PXA_PCMCIA + +static int hardware_enable (int slot) +{ + return 0; /* No hardware to enable */ +} + +static int hardware_disable(int slot) +{ + return 0; /* No hardware to disable */ +} + +static int voltage_set(int slot, int vcc, int vpp) +{ + return 0; +} + +void msWait(unsigned msVal) +{ + udelay(msVal*1000); +} + +int pcmcia_on (void) +{ + unsigned int reg_arr[] = { + 0x48000028, CFG_MCMEM0_VAL, + 0x4800002c, CFG_MCMEM1_VAL, + 0x48000030, CFG_MCATT0_VAL, + 0x48000034, CFG_MCATT1_VAL, + 0x48000038, CFG_MCIO0_VAL, + 0x4800003c, CFG_MCIO1_VAL, + + 0, 0 + }; + int i, rc; + +#ifdef CONFIG_EXADRON1 + int cardDetect; + volatile unsigned int *v_pBCRReg = + (volatile unsigned int *) 0x08000000; +#endif + + debug ("%s\n", __FUNCTION__); + + i = 0; + while (reg_arr[i]) + *((volatile unsigned int *) reg_arr[i++]) |= reg_arr[i++]; + udelay (1000); + + debug ("%s: programmed mem controller \n", __FUNCTION__); + +#ifdef CONFIG_EXADRON1 + +/*define useful BCR masks */ +#define BCR_CF_INIT_VAL 0x00007230 +#define BCR_CF_PWRON_BUSOFF_RESETOFF_VAL 0x00007231 +#define BCR_CF_PWRON_BUSOFF_RESETON_VAL 0x00007233 +#define BCR_CF_PWRON_BUSON_RESETON_VAL 0x00007213 +#define BCR_CF_PWRON_BUSON_RESETOFF_VAL 0x00007211 + + /* we see from the GPIO bit if the card is present */ + cardDetect = !(GPLR0 & GPIO_bit (14)); + + if (cardDetect) { + printf ("No PCMCIA card found!\n"); + } + + /* reset the card via the BCR line */ + *v_pBCRReg = (unsigned) BCR_CF_INIT_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETOFF_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETON_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETON_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETOFF_VAL; + msWait (1500); + + /* enable address bus */ + GPCR1 = 0x01; + /* and the first CF slot */ + MECR = 0x00000002; + +#endif /* EXADRON 1 */ + + rc = check_ide_device (0); /* use just slot 0 */ + + return rc; +} + +#endif /* CONFIG_PXA_PCMCIA */ + /* -------------------------------------------------------------------- */ #if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) @@ -296,6 +404,9 @@ static int pcmcia_off (void) return 0; } #else + +#ifndef CONFIG_PXA_PCMCIA + static int pcmcia_off (void) { int i; @@ -327,13 +438,23 @@ static int pcmcia_off (void) hardware_disable(_slot_); return 0; } + +#endif /* CONFIG_PXA_PCMCIA */ + #endif /* CONFIG_I82365 */ +#ifdef CONFIG_PXA_PCMCIA +static int pcmcia_off (void) +{ + return 0; +} +#endif + #endif /* CFG_CMD_PCMCIA */ /* -------------------------------------------------------------------- */ -#ifdef CONFIG_IDE_8xx_PCCARD +#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA) #define MAX_TUPEL_SZ 512 #define MAX_FEATURES 4 @@ -2370,7 +2491,7 @@ static const u_int m8xx_size_to_gray[M8XX_SIZES_NO] = /* -------------------------------------------------------------------- */ -#ifndef CONFIG_I82365 +#if ( ! defined(CONFIG_I82365) && ! defined(CONFIG_PXA_PCMCIA) ) static u_int m8xx_get_graycode(u_int size) { @@ -2444,7 +2565,7 @@ static u_int m8xx_get_speed(u_int ns, u_int is_io) /* -------------------------------------------------------------------- */ -#ifdef CONFIG_IDE_8xx_PCCARD +#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA) static void print_funcid (int func) { puts (indent); @@ -2486,7 +2607,7 @@ static void print_funcid (int func) /* -------------------------------------------------------------------- */ -#ifdef CONFIG_IDE_8xx_PCCARD +#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA) static void print_fixed (volatile uchar *p) { if (p == NULL) @@ -2544,7 +2665,7 @@ static void print_fixed (volatile uchar *p) /* -------------------------------------------------------------------- */ -#ifdef CONFIG_IDE_8xx_PCCARD +#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA) #define MAX_IDENT_CHARS 64 #define MAX_IDENT_FIELDS 4 diff --git a/doc/README.PXA_CF b/doc/README.PXA_CF new file mode 100644 index 0000000..186f775 --- /dev/null +++ b/doc/README.PXA_CF @@ -0,0 +1,50 @@ + +These are brief instructions on how to add support for CF adapters to +custom designed PXA boards. You need to set the parameters in the +config file. This should work for most implementations especially if you +follow the connections of the standard lubbock. Anyway just the block +marked memory configuration should be touched since the other parameters +are imposed by the PXA architecture. + +#define CONFIG_PXA_PCMCIA 1 +#define CONFIG_PXA_IDE 1 + +#define CONFIG_PCMCIA_SLOT_A 1 +/* just to keep build system happy */ + +#define CFG_PCMCIA_MEM_ADDR 0x28000000 +#define CFG_PCMCIA_MEM_SIZE 0x10000000 + +#define CFG_MECR_VAL 0x00000000 +#define CFG_MCMEM0_VAL 0x00004204 +#define CFG_MCMEM1_VAL 0x00000000 +#define CFG_MCATT0_VAL 0x00010504 +#define CFG_MCATT1_VAL 0x00000000 +#define CFG_MCIO0_VAL 0x00008407 +#define CFG_MCIO1_VAL 0x00000000 +/* memory configuration */ + +#define CFG_IDE_MAXBUS 1 +/* max. 1 IDE bus */ +#define CFG_IDE_MAXDEVICE 1 +/* max. 1 drive per IDE bus */ + +#define CFG_ATA_IDE0_OFFSET 0x0000 + +#define CFG_ATA_BASE_ADDR 0x20000000 + +/* Offset for data I/O */ +#define CFG_ATA_DATA_OFFSET 0x1f0 + +/* Offset for normal register accesses */ +#define CFG_ATA_REG_OFFSET 0x1f0 + +/* Offset for alternate registers */ +#define CFG_ATA_ALT_OFFSET 0x3f0 + + +Another important point is that maybe you have to power the pcmcia +subsystem. This is very board specific, for an example on how to +do it please search for CONFIG_EXADRON1 in cmd_pcmcia.c + + diff --git a/include/configs/JSE.h b/include/configs/JSE.h new file mode 100644 index 0000000..4dd7d89 --- /dev/null +++ b/include/configs/JSE.h @@ -0,0 +1,304 @@ +/* + * (C) Copyright 2003 Picture Elements, Inc. + * Stephen Williams <steve@icarus.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * board/config.h - configuration options, board specific + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +/* + * High Level Configuration Options for the JSE board + * (Theoretically easy to change, but the board is fixed.) + */ + +#define CONFIG_JSE 1 + /* JSE has a PPC405GPr */ +#define CONFIG_405GP 1 + /* ... which is a 4xxx series */ +#define CONFIG_4xx 1 + /* ... with a 33MHz OSC. connected to the SysCLK input */ +#define CONFIG_SYS_CLK_FREQ 33333333 + /* ... with on-chip memory here (4KBytes) */ +#define CFG_OCM_DATA_ADDR 0xF4000000 +#define CFG_OCM_DATA_SIZE 0x00001000 + /* Do not set up locked dcache as init ram. */ +#undef CFG_INIT_DCACHE_CS + + /* Map the SystemACE chip (CS#1) here. (Must be a multiple of 1Meg) */ +#define CONFIG_SYSTEMACE 1 +#define CFG_SYSTEMACE_BASE 0xf0000000 +#define CONFIG_DOS_PARTITION 1 + + /* Use the On-Chip-Memory (OCM) as a temporary stack for the startup code. */ +#define CFG_TEMP_STACK_OCM 1 + /* ... place INIT RAM in the OCM address */ +# define CFG_INIT_RAM_ADDR CFG_OCM_DATA_ADDR + /* ... give it the whole init ram */ +# define CFG_INIT_RAM_END CFG_OCM_DATA_SIZE + /* ... Shave a bit off the end for global data */ +# define CFG_GBL_DATA_SIZE 128 +# define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) + /* ... and place the stack pointer at the top of what's left. */ +# define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET + + /* Enable board_pre_init function */ +#define CONFIG_BOARD_PRE_INIT 1 +#define CONFIG_BOARD_EARLY_INIT_F 1 + /* Disable post-clk setup init function */ +#undef CONFIG_BOARD_POSTCLK_INIT + /* Disable call to post_init_f: late init function. */ +#undef CONFIG_POST + /* Enable DRAM test. */ +#define CFG_DRAM_TEST 1 + /* Enable misc_init_r function. */ +#define CONFIG_MISC_INIT_R 1 + + /* JSE has EEPROM chips that are good for environment. */ +#undef CFG_ENV_IS_IN_NVRAM +#undef CFG_ENV_IS_IN_FLASH +#define CFG_ENV_IS_IN_EEPROM 1 +#undef CFG_ENV_IS_NOWHERE + + /* This is the 7bit address of the device, not including P. */ +#define CFG_I2C_EEPROM_ADDR 0x50 + /* After the device address, need one more address byte. */ +#define CFG_I2C_EEPROM_ADDR_LEN 1 + /* The EEPROM is 512 bytes. */ +#define CFG_EEPROM_SIZE 512 + /* The EEPROM can do 16byte ( 1 << 4 ) page writes. */ +#define CFG_EEPROM_PAGE_WRITE_BITS 4 +#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 + /* Put the environment in the second half. */ +#define CFG_ENV_OFFSET 0x00 +#define CFG_ENV_SIZE 512 + + + /* The JSE connects UART1 to the console tap connector. */ +#define CONFIG_UART1_CONSOLE 1 + /* Set console baudrate to 9600 */ +#define CONFIG_BAUDRATE 9600 + +/* Size (bytes) of interrupt driven serial port buffer. + * Set to 0 to use polling instead of interrupts. + * Setting to 0 will also disable RTS/CTS handshaking. + */ +#undef CONFIG_SERIAL_SOFTWARE_FIFO + +/* + * Configuration related to auto-boot. + * + * CONFIG_BOOTDELAY sets the delay (in seconds) that U-Boot will wait + * before resorting to autoboot. This value can be overridden by the + * bootdelay environment variable. + * + * CONFIG_AUTOBOOT_PROMPT is the string that U-Boot emits to warn the + * user that an autoboot will happen. + * + * CONFIG_BOOTCOMMAND is the sequence of commands that U-Boot will + * execute to boot the JSE. This loads the uimage and initrd.img files + * from CompactFlash into memory, then boots them from memory. + * + * CONFIG_BOOTARGS is the arguments passed to the Linux kernel to get + * it going on the JSE. + */ +#define CONFIG_BOOTDELAY 5 +#define CONFIG_BOOTARGS "root=/dev/ram0 init=/linuxrc rw" +#define CONFIG_BOOTCOMMAND "fatload ace 0 2000000 uimage; fatload ace 0 2100000 initrd.img; bootm 2000000 2100000" + + +#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ +#define CFG_LOADS_BAUD_CHANGE 1 /* allow baudrate change */ + +#define CONFIG_MII 1 /* MII PHY management */ +#define CONFIG_PHY_ADDR 1 /* PHY address */ + +#define CONFIG_COMMANDS (CONFIG_CMD_DFL | \ + CFG_CMD_PCI | \ + CFG_CMD_IRQ | \ + CFG_CMD_FLASH | \ + CFG_CMD_NET | \ + CFG_CMD_DHCP | \ + CFG_CMD_PING | \ + CFG_CMD_MII | \ + CFG_CMD_EEPROM | \ + CFG_CMD_FAT | \ + CFG_CMD_ELF ) + +/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ +#include <cmd_confdefs.h> + + /* watchdog disabled */ +#undef CONFIG_WATCHDOG + /* SPD EEPROM (sdram speed config) disabled */ +#undef CONFIG_SPD_EEPRO +#undef SPD_EEPROM_ADDRESS + +/* + * Miscellaneous configurable options + */ +#define CFG_LONGHELP /* undef to save memory */ +#define CFG_PROMPT "=> " /* Monitor Command Prompt */ + +#define CFG_HUSH_PARSER /* use "hush" command parser */ +#ifdef CFG_HUSH_PARSER +#define CFG_PROMPT_HUSH_PS2 "> " +#endif + +#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ +#else +#define CFG_CBSIZE 256 /* Console I/O Buffer Size */ +#endif +#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ +#define CFG_MAXARGS 16 /* max number of command args */ +#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ + +#define CFG_MEMTEST_START 0x0400000 /* memtest works on */ +#define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ + +/* + * If CFG_EXT_SERIAL_CLOCK, then the UART divisor is 1. + * If CFG_405_UART_ERRATA_59, then UART divisor is 31. + * Otherwise, UART divisor is determined by CPU Clock and CFG_BASE_BAUD value. + * The Linux BASE_BAUD define should match this configuration. + * baseBaud = cpuClock/(uartDivisor*16) + * If CFG_405_UART_ERRATA_59 and 200MHz CPU clock, + * set Linux BASE_BAUD to 403200. + */ +#undef CFG_EXT_SERIAL_CLOCK /* external serial clock */ +#undef CFG_405_UART_ERRATA_59 /* 405GP/CR Rev. D silicon */ +#define CFG_BASE_BAUD 691200 + +/* The following table includes the supported baudrates */ +#define CFG_BAUDRATE_TABLE \ + {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400} + +#define CFG_LOAD_ADDR 0x100000 /* default load address */ +#define CFG_EXTBDINFO 1 /* To use extended board_into (bd_t) */ + +#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ + +#define CONFIG_HARD_I2C 1 /* I2C with hardware support */ +#undef CONFIG_SOFT_I2C /* I2C bit-banged */ +#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */ +#define CFG_I2C_SLAVE 0x7F + + +/*----------------------------------------------------------------------- + * PCI stuff + *----------------------------------------------------------------------- + */ +#define PCI_HOST_ADAPTER 0 /* configure ar pci adapter */ +#define PCI_HOST_FORCE 1 /* configure as pci host */ +#define PCI_HOST_AUTO 2 /* detected via arbiter enable */ + +#define CONFIG_PCI /* include pci support */ +#define CONFIG_PCI_HOST PCI_HOST_FORCE /* select pci host function */ +#undef CONFIG_PCI_PNP /* do pci plug-and-play */ + /* resource configuration */ + +#define CFG_PCI_SUBSYS_VENDORID 0x0000 /* PCI Vendor ID: to-do!!! */ +#define CFG_PCI_SUBSYS_DEVICEID 0x0000 /* PCI Device ID: to-do!!! */ +#define CFG_PCI_PTM1LA 0x00000000 /* point to sdram */ +#define CFG_PCI_PTM1MS 0x80000001 /* 2GB, enable hard-wired to 1 */ +#define CFG_PCI_PTM1PCI 0x00000000 /* Host: use this pci address */ +#define CFG_PCI_PTM2LA 0x00000000 /* disabled */ +#define CFG_PCI_PTM2MS 0x00000000 /* disabled */ +#define CFG_PCI_PTM2PCI 0x04000000 /* Host: use this pci address */ + +/*----------------------------------------------------------------------- + * External peripheral base address + *----------------------------------------------------------------------- + */ +#undef CONFIG_IDE_LED /* no led for ide supported */ +#undef CONFIG_IDE_RESET /* no reset for ide supported */ + +#define CFG_KEY_REG_BASE_ADDR 0xF0100000 +#define CFG_IR_REG_BASE_ADDR 0xF0200000 +#define CFG_FPGA_REG_BASE_ADDR 0xF0300000 + +/*----------------------------------------------------------------------- + * Start addresses for the final memory configuration + * (Set up by the startup code) + * Please note that CFG_SDRAM_BASE _must_ start at 0 + */ +#define CFG_SDRAM_BASE 0x00000000 +#define CFG_FLASH_BASE 0xFFF80000 +#define CFG_MONITOR_BASE CFG_FLASH_BASE +#define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Monitor */ +#define CFG_MALLOC_LEN (128 * 1024) /* Reserve 128 kB for malloc() */ + +/* + * For booting Linux, the board info and command line data + * have to be in the first 8 MB of memory, since this is + * the maximum mapped by the Linux kernel during initialization. + */ +#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ + +/*----------------------------------------------------------------------- + * FLASH organization + */ +#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ +#define CFG_MAX_FLASH_SECT 256 /* max number of sectors on one chip */ + +#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ +#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ + +/*----------------------------------------------------------------------- + * Cache Configuration + */ +#define CFG_DCACHE_SIZE 16384 /* For IBM 405GPr CPUs */ +#define CFG_CACHELINE_SIZE 32 /* ... */ +#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value */ +#endif + +/* + * Init Memory Controller: + * + * BR0/1 and OR0/1 (FLASH) + */ + +#define FLASH_BASE0_PRELIM CFG_FLASH_BASE /* FLASH bank #0 */ +#define FLASH_BASE1_PRELIM 0 /* FLASH bank #1 */ + + +/* Configuration Port location */ +#define CONFIG_PORT_ADDR 0xF0000500 + + +/* + * Internal Definitions + * + * Boot Flags + */ +#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ +#define BOOTFLAG_WARM 0x02 /* Software reboot */ + +#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */ +#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */ +#endif +#endif /* __CONFIG_H */ diff --git a/include/fat.h b/include/fat.h index 13910f9..3e7c91c 100644 --- a/include/fat.h +++ b/include/fat.h @@ -210,4 +210,11 @@ long file_fat_read(const char *filename, void *buffer, unsigned long maxsize); const char *file_getfsname(int idx); int fat_register_device(block_dev_desc_t *dev_desc, int part_no); +#ifdef CONFIG_PXA250 +#undef FAT2CPU16 +#define FAT2CPU16(x) x +#undef FAT2CPU32 +#define FAT2CPU32(x) x +#endif + #endif /* _FAT_H_ */ |