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authorWolfgang Denk <wd@denx.de>2012-04-29 23:57:39 +0000
committerWolfgang Denk <wd@denx.de>2012-07-29 15:42:02 +0200
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parent631fea8f2d70aa5eb7c49b33039971dfc61bba88 (diff)
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doc: cleanup - move board READMEs into respective board directories
Also drop a few files referring to no longer / not yet supported boards. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Prafulla Wadaskar <prafulla@marvell.com> Cc: Stefan Roese <sr@denx.de> Cc: Kim Phillips <kim.phillips@freescale.com> Cc: Andy Fleming <afleming@gmail.com> Cc: Jason Jin <jason.jin@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
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diff --git a/doc/README.PIP405 b/doc/README.PIP405
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-U-Boot Changes due to PIP405 Port:
-===================================
-
-Changed files:
-==============
-- MAKEALL added PIP405
-- makefile added PIP405
-- common/Makefile added Floppy disk and SCSI support
-- common/board.c added PIP405, SCSI support, get_PCI_freq()
-- common/bootm.c added IH_OS_U_BOOT, IH_TYPE_FIRMWARE
-- common/cmd_i2c.c added "defined(CONFIG_PIP405)"
-- common/cmd_ide.c changed div. functions to work with block device
- description
- added ATAPI support
-- common/command.c added SCSI and Floppy support
-- common/console.c replaced // with /* comments
- added console settings from environment
-- common/devices.c added ISA keyboard init
-- common/main.c corrected the read of bootdelay
-- arch/powerpc/cpu/ppc4xx/405gp_pci.c excluded file from PIP405
-- arch/powerpc/cpu/ppc4xx/i2c.c added 16bit read write I2C support
- added page write
-- arch/powerpc/cpu/ppc4xx/speed.c added get_PCI_freq
-- arch/powerpc/cpu/ppc4xx/start.S added CONFIG_IDENT_STRING
-- disk/Makefile added part_iso for CD support
-- disk/part.c changed to work with block device description
- added ISO CD support
- added dev_print (was ide_print in cmd_ide.c)
-- disk/part_dos.c changed to work with block device description
-- disk/part_mac.c changed to work with block device description
-- include/ata.h added ATAPI commands
-- include/cmd_bsp.h added PIP405 commands definitions
-- include/cmd_condefs.h added Floppy and SCSI support
-- include/cmd_disk.h changed to work with block device description
-- include/config_LANTEC.h excluded CONFIG_CMD_FDC and CONFIG_CMD_SCSI
-- include/config_hymod.h excluded CONFIG_CMD_FDC and CONFIG_CMD_SCSI
-- include/flash.h added INTEL_ID_28F320C3T 0x88C488C4
-- include/i2c.h added "defined(CONFIG_PIP405)"
-- include/image.h added IH_OS_U_BOOT, IH_TYPE_FIRMWARE
-- include/u-boot.h moved partitions functions definitions to part.h
- added "defined(CONFIG_PIP405)"
- added get_PCI_freq() definition
-- rtc/Makefile added MC146818 RTC support
-- tools/mkimage.c added IH_OS_U_BOOT, IH_TYPE_FIRMWARE
-
-Added files:
-============
-- board/pip405 directory for PIP405
-- board/pip405/cmd_pip405.c board specific commands
-- board/pip405/config.mk config make
-- board/pip405/flash.c flash support
-- board/pip405/init.s start-up
-- board/pip405/kbd.c keyboard support
-- board/pip405/kbd.h keyboard support
-- board/pip405/Makefile Makefile
-- board/pip405/pci_piix4.h southbridge definitions
-- board/pip405/pci_pip405.c PCI support for PIP405
-- board/pip405/pci_pip405.h PCI support for PIP405
-- board/pip405/pip405.c PIP405 board init
-- board/pip405/pip405.h PIP405 board init
-- board/pip405/pip405_isa.c ISA support
-- board/pip405/pip405_isa.h ISA support
-- board/pip405/u-boot.lds Linker description
-- board/pip405/u-boot.lds.debugLinker description debug
-- board/pip405/sym53c8xx.c SYM53C810A support
-- board/pip405/sym53c8xx_defs.h SYM53C810A definitions
-- board/pip405/vga_table.h definitions of tables for VGA
-- board/pip405/video.c CT69000 support
-- board/pip405/video.h CT69000 support
-- common/cmd_fdc.c Floppy disk support
-- common/cmd_scsi.c SCSI support
-- disk/part_iso.c ISO CD ROM support
-- disk/part_iso.h ISO CD ROM support
-- include/cmd_fdc.h command forFloppy disk support
-- include/cmd_scsi.h command for SCSI support
-- include/part.h partitions functions definitions
- (was part of u-boot.h)
-- include/scsi.h SCSI support
-- rtc/mc146818.c MC146818 RTC support
-
-
-New Config Switches:
-====================
-For detailed description, refer to the corresponding paragraph in the
-section "Changes".
-
-New Commands:
--------------
-CONFIG_CMD_SCSI SCSI Support
-CONFIG_CMF_FDC Floppy disk support
-
-IDE additions:
---------------
-CONFIG_IDE_RESET_ROUTINE defines that instead of a reset Pin,
- the routine ide_set_reset(int idereset) is used.
-ATAPI support (experimental)
-----------------------------
-CONFIG_ATAPI enables ATAPI Support
-
-SCSI support (experimental) only SYM53C8xx supported
-----------------------------------------------------
-CONFIG_SCSI_SYM53C8XX type of SCSI controller
-CONFIG_SYS_SCSI_MAX_LUN 8 number of supported LUNs
-CONFIG_SYS_SCSI_MAX_SCSI_ID 7 maximum SCSI ID (0..6)
-CONFIG_SYS_SCSI_MAX_DEVICE CONFIG_SYS_SCSI_MAX_SCSI_ID * CONFIG_SYS_SCSI_MAX_LUN
- maximum of Target devices (multiple LUN support
- for boot)
-
-ISO (CD-Boot) partition support (Experimental)
-----------------------------------------------
-CONFIG_ISO_PARTITION CD-boot support
-
-RTC
-----
-CONFIG_RTC_MC146818 MC146818 RTC support
-
-Keyboard:
----------
-CONFIG_ISA_KEYBOARD Standard (PC-Style) Keyboard support
-
-Video:
-------
-CONFIG_VIDEO_CT69000 Enable Chips & Technologies 69000 Video chip
- CONFIG_VIDEO must be defined also
-
-External peripheral base address:
----------------------------------
-CONFIG_SYS_ISA_IO_BASE_ADDRESS address of all ISA-bus related parts
- _must_ be defined for ISA-bus parts
-
-Identify:
----------
-CONFIG_IDENT_STRING added to the U_BOOT_VERSION String
-
-Environment / Console:
-----------------------
-
-CONFIG_SYS_CONSOLE_IS_IN_ENV if defined, stdin, stdout and stderr used from
- the values stored in the evironment.
-
-CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE if defined, console_overwrite() decides if the
- values stored in the environment or the standard
- serial in/out put should be assigned to the console.
-
-CONFIG_SYS_CONSOLE_ENV_OVERWRITE if defined, the start-up console switching
- are stored in the environment.
-
-PIP405 specific:
-----------------
-CONFIG_PORT_ADDR address used to read boot configuration
-MULTI_PURPOSE_SOCKET_ADDR address of the multi purpose socked
-SDRAM_EEPROM_WRITE_ADDRESS addresses of the serial presence detect
-SDRAM_EEPROM_READ_ADDRESS EEPROM on the SDRAM module.
-
-
-Changes:
-========
-
-Added Devices:
-==============
-
-Floppy support:
----------------
-Support of a standard floppy disk controller at address CONFIG_SYS_ISA_IO_BASE_ADDRESS
-+ 0x3F0. Enabled with define CONFIG_CMD_FDC. Reads a unformated floppy disk
-with a image header (see: mkimage). No interrupts and no DMA are used for this.
-Added files:
-- common/cmd_fdc.c
-- include/cmd_fdc.h
-
-SCSI support:
--------------
-Support for Symbios SYM53C810A chip. Implemented as follows:
-- without disconnect
-- only asynchrounous
-- multiple LUN support (caution, needs a lot of RAM. define CONFIG_SYS_SCSI_MAX_LUN 1 to
- save RAM)
-- multiple SCSI ID support
-- no write support
-- analyses the MAC, DOS and ISO pratition similar to the IDE support
-- allows booting from SCSI devices similar to the IDE support.
-The device numbers are not assigned like they are within the IDE support. The first
-device found will get the number 0, the next 1 etc. If all SCSI IDs (0..6) and all
-LUNs (8) are enabled, 56 boot devices are possible. This uses a lot of RAM since the
-device descriptors are not yet dynamically allocated. 56 boot devices are overkill
-anyway. Please refer to the section "Todo" chapter "block device support enhancement".
-The SYM53C810A uses 1 Interrupt and must be able of mastering the PCI bus.
-Added files:
-- common/cmd_scsi.c
-- common/board.c
-- include/cmd_scsi.h
-- include/scsi.h
-- board/pip405/sym53c8xx.c
-- board/pip405/sym53c8xx_defs.h
-
-ATAPI support (IDE changes):
-----------------------------
-Added ATAPI support (with CONFIG_ATAPI) in the file cmd_ide.c.
-To support a hardreset, when the IDE reset pin is not connected to the
-CONFIG_SYS_PC_IDE_RESET pin, the switch CONFIG_IDE_RESET_ROUTINE has been added. When
-this switch is enabled the routine void ide_set_reset(int idereset) must be
-within the board specific files.
-Only read from ATAPI devices are supported.
-Found out that the function trim_trail cuts off the last character if the whole
-string is filled. Added function cpy_ident instead, which trims also leading
-spaces and copies the string in the buffer.
-Changed files:
-- common/cmd_ide.c
-- include/ata.h
-
-ISO partition support:
-----------------------
-Added CD boot support for El-Torito bootable ISO CDs. The bootfile image must contain
-the U-Boot image header. Since CDs do not have "partitions", the boot partition is 0.
-The bootcatalog feature has not been tested so far. CD Boot is supported for ATAPI
-("diskboot") and SCSI ("scsiboot") devices.
-Added files:
-- disk/iso_part.c
-- disk/iso_part.h
-
-Block device changes:
----------------------
-To allow the use of dos_part.c, mac_part.c and iso_part.c, the parameter
-block_dev_desc will be used when accessing the functions in these files. The block
-device descriptor (block_dev_desc) contains a pointer to the read routine of the
-device, which will be used to read blocks from the device.
-Renamed function ide_print to dev_print and moved it to the file disk/part.c to use
-it for IDE ATAPI and SCSI devices.
-Please refer to the section "Todo" chapter "block device support enhancement".
-Added files:
-- include/part.h
-changed files:
-- disk/dos_part.c
-- disk/dos_part.h
-- disk/mac_part.c
-- disk/mac_part.h
-- disk/part.c
-- common/cmd_ide.c
-- include/u-boot.h
-
-
-MC146818 RTC support:
----------------------
-Added support for MC146818 RTC with defining CONFIG_RTC_MC146818. The ISA bus IO
-base address must be defined with CONFIG_SYS_ISA_IO_BASE_ADDRESS.
-Added files:
-- rtc/mc146818.c
-
-Standard ISA bus Keyboard support:
-----------------------------------
-Added support for the standard PC kyeboard controller. For the PIP405 the superIO
-controller must be set up previously. The keyboard uses the standard ISA IRQ, so
-the ISA PIC must also be set up.
-Added files:
-- board/pip405/kbd.c
-- board/pip405/kbd.h
-- board/pip405/pip405_isa.c
-- board/pip405/pip405_isa.h
-
-Chips and Technologie 69000 VGA controller support:
----------------------------------------------------
-Added support for the CT69000 VGA controller.
-Added files:
-- board/pip405/video.c
-- board/pip405/video.h
-- board/pip405/vga_table.h
-
-
-Changed Items:
-==============
-
-Identify:
----------
-Added the config variable CONFIG_IDENT_STRING which will be added to the
-"U_BOOT_VERSION __TIME__ DATE___ " String, to allows to identify intermidiate
-and custom versions.
-Changed files:
-- arch/powerpc/cpu/ppc4xx/start.s
-
-Firmware Image:
----------------
-Added IH_OS_U_BOOT and IH_TYPE_FIRMWARE to the image definitions to allows the
-U-Boot update with prior CRC check.
-Changed files:
-- include/image.h
-- tools/mkimage.c
-- common/cmd_bootm.c
-
-Correct PCI Frequency for PPC405:
----------------------------------
-Added function (in arch/powerpc/cpu/ppc4xx/speed.c) to get the PCI frequency for PPC405 CPU.
-The PCI Frequency will now be set correct in the board description in common/board.c.
-(was set to the busfreq before).
-Changed files:
-- arch/powerpc/cpu/ppc4xx/speed.c
-- common/board.c
-
-I2C Stuff:
-----------
-Added defined(CONFIG_PIP405) at several points in common/cmd_i2c.c.
-Added 16bit read/write support for I2C (PPC405), and page write to
-I2C EEPROM if defined CONFIG_SYS_EEPROM_PAGE_WRITE_ENABLE.
-Changed files:
-- arch/powerpc/cpu/ppc4xx/i2c.c
-- common/cmd_i2c.c
-
-Environment / Console:
-----------------------
-Although in README.console described, the U-Boot has not assinged the values
-found in the environment to the console. Corrected this behavior, but only if
-CONFIG_SYS_CONSOLE_IS_IN_ENV is defined.
-If CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE is defined, console_overwrite() decides if the
-values stored in the environment or the standard serial in/output should be
-assigned to the console. This is useful if the environment values are not correct.
-If CONFIG_SYS_CONSOLE_ENV_OVERWRITE is defined the devices assigned to the console at
-start-up time will be written to the environment. This means that if the
-environment values are overwritten by the overwrite_console() routine, they will be
-stored in the environment.
-Changed files:
-- common/console.c
-
-Correct bootdelay intepretation:
---------------------------------
-Changed bootdelay read from the environment from simple_strtoul (unsigned) to
-simple_strtol (signed), to be able to get a bootdelay of -1.
-Changed files:
-- common/main.c
-
-Todo:
-=====
-
-Block device support enhancement:
----------------------------------
-Consider to unify the block device handling. Instead of using diskboot for IDE,
-scsiboot for SCSI and fdcboot for floppy disks, it would make sense to use only
-one command ("devboot" ???) with a parameter of the desired device ("hda1", "sda1",
-"fd0" ???) to boot from. The other ide commands can be handled in the same way
-("dev hda read.." instead of "ide read.." or "dev sda read.." instead of
-"scsi read..."). Todo this, a common way of assign a block device to its name
-(first found ide device = hda, second found hdb etc., or hda is device 0 on bus 0,
-hdb is device 1 on bus 0 etc.) as well as the names (hdx for ide, sdx for scsi, fx for
-floppy ???) must be defined.
-Maybe there are better ideas to do this.
-
-Console assingment:
--------------------
-Consider to initialize and assign the console stdin, stdout and stderr as soon as
-possible to see the boot messages also on an other console than serial.
-
-
-Todo for PIP405:
-================
-
-LCD support for VGA:
---------------------
-Add LCD support for the CT69000
-
-Default environment:
---------------------
-Consider to write a default environment to the OTP part of the EEPROM and use it
-if the normal environment is not valid. Useful for serial# and ethaddr values.
-
-Watchdog:
----------
-Implement Watchdog.
-
-Files clean-up:
----------------
-Following files needs to be cleaned up:
-- cmd_pip405.c
-- flash.c
-- pci_pip405.c
-- pip405.c
-- pip405_isa.c
-Consider to split up the files in their functions.