diff options
Diffstat (limited to 'tcl/target/c100config.tcl')
-rw-r--r-- | tcl/target/c100config.tcl | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/tcl/target/c100config.tcl b/tcl/target/c100config.tcl new file mode 100644 index 0000000..f020f96 --- /dev/null +++ b/tcl/target/c100config.tcl @@ -0,0 +1,324 @@ + +# board(-config) specfic parameters file. + +# set CFG_REFCLKFREQ [configC100 CFG_REFCLKFREQ] +proc config {label} { + return [dict get [configC100] $label ] +} + +# show the value for the param. with label +proc showconfig {label} { + puts [format "0x%x" [dict get [configC100] $label ]] +} + +# Telo board config +# when there are more then one board config +# use soft links to c100board-config.tcl +# so that only the right board-config gets +# included (just like include/configs/board-configs.h +# in u-boot. +proc configC100 {} { + # xtal freq. 24MHz + dict set configC100 CFG_REFCLKFREQ 24000000 + + # Amba Clk 165MHz + dict set configC100 CONFIG_SYS_HZ_CLOCK 165000000 + dict set configC100 w_amba 1 + dict set configC100 x_amba 1 + # y = amba_clk * (w+1)*(x+1)*2/xtal_clk + dict set configC100 y_amba [expr ([dict get $configC100 CONFIG_SYS_HZ_CLOCK] * ( ([dict get $configC100 w_amba]+1 ) * ([dict get $configC100 x_amba]+1 ) *2 ) / [dict get $configC100 CFG_REFCLKFREQ]) ] + + # Arm Clk 450MHz, must be a multiple of 25 MHz + dict set configC100 CFG_ARM_CLOCK 450000000 + dict set configC100 w_arm 0 + dict set configC100 x_arm 1 + # y = arm_clk * (w+1)*(x+1)*2/xtal_clk + dict set configC100 y_arm [expr ([dict get $configC100 CFG_ARM_CLOCK] * ( ([dict get $configC100 w_arm]+1 ) * ([dict get $configC100 x_arm]+1 ) *2 ) / [dict get $configC100 CFG_REFCLKFREQ]) ] + + +} + +proc setupNOR {} { + puts "Setting up NOR: 16MB, 16-bit wide bus, CS0" + # this is taken from u-boot/boards/mindspeed/ooma-darwin/board.c:nor_hw_init() + set EX_CSEN_REG [regs EX_CSEN_REG ] + set EX_CS0_SEG_REG [regs EX_CS0_SEG_REG ] + set EX_CS0_CFG_REG [regs EX_CS0_CFG_REG ] + set EX_CS0_TMG1_REG [regs EX_CS0_TMG1_REG ] + set EX_CS0_TMG2_REG [regs EX_CS0_TMG2_REG ] + set EX_CS0_TMG3_REG [regs EX_CS0_TMG3_REG ] + set EX_CLOCK_DIV_REG [regs EX_CLOCK_DIV_REG ] + set EX_MFSM_REG [regs EX_MFSM_REG ] + set EX_CSFSM_REG [regs EX_CSFSM_REG ] + set EX_WRFSM_REG [regs EX_WRFSM_REG ] + set EX_RDFSM_REG [regs EX_RDFSM_REG ] + + # enable Expansion Bus Clock + CS0 (NOR) + mww $EX_CSEN_REG 0x3 + # set the address space for CS0=16MB + mww $EX_CS0_SEG_REG 0x7ff + # set the CS0 bus width to 16-bit + mww $EX_CS0_CFG_REG 0x202 + # set timings to NOR + mww $EX_CS0_TMG1_REG 0x03034006 + mww $EX_CS0_TMG2_REG 0x04040002 + #mww $EX_CS0_TMG3_REG + # set EBUS clock 165/5=33MHz + mww $EX_CLOCK_DIV_REG 0x5 + # everthing else is OK with default +} + +proc bootNOR {} { + set EXP_CS0_BASEADDR [regs EXP_CS0_BASEADDR] + set BLOCK_RESET_REG [regs BLOCK_RESET_REG] + set DDR_RST [regs DDR_RST] + + # put DDR controller in reset (so that it comes reset in u-boot) + mmw $BLOCK_RESET_REG 0x0 $DDR_RST + # setup CS0 controller for NOR + setupNOR + # make sure we are accessing the lower part of NOR + lowGPIO5 + # set PC to start of NOR (at boot 0x20000000 = 0x0) + reg pc $EXP_CS0_BASEADDR + # run + resume +} +proc setupGPIO {} { + puts "Setting up GPIO block for Telo" + # This is current setup for Telo (see sch. for details): + #GPIO0 reset for FXS-FXO IC, leave as input, the IC has internal pullup + #GPIO1 irq line for FXS-FXO + #GPIO5 addr22 for NOR flash (access to upper 8MB) + #GPIO17 reset for DECT module. + #GPIO29 CS_n for NAND + + set GPIO_OUTPUT_REG [regs GPIO_OUTPUT_REG] + set GPIO_OE_REG [regs GPIO_OE_REG] + + # set GPIO29=GPIO17=1, GPIO5=0 + mww $GPIO_OUTPUT_REG [expr 1<<29 | 1<<17] + # enable [as output] GPIO29,GPIO17,GPIO5 + mww $GPIO_OE_REG [expr 1<<29 | 1<<17 | 1<<5] +} + +proc highGPIO5 {} { + puts "GPIO5 high" + set GPIO_OUTPUT_REG [regs GPIO_OUTPUT_REG] + # set GPIO5=1 + mmw $GPIO_OUTPUT_REG [expr 1 << 5] 0x0 +} + +proc lowGPIO5 {} { + puts "GPIO5 low" + set GPIO_OUTPUT_REG [regs GPIO_OUTPUT_REG] + # set GPIO5=0 + mmw $GPIO_OUTPUT_REG 0x0 [expr 1 << 5] +} + +proc boardID {id} { + # so far built: + # 4'b1111 + dict set boardID 15 name "EVT1" + dict set boardID 15 ddr2size 128M + # dict set boardID 15 nandsize 1G + # dict set boardID 15 norsize 16M + # 4'b0000 + dict set boardID 0 name "EVT2" + dict set boardID 0 ddr2size 128M + # 4'b0001 + dict set boardID 1 name "EVT3" + dict set boardID 1 ddr2size 256M + # 4'b1110 + dict set boardID 14 name "EVT3_old" + dict set boardID 14 ddr2size 128M + # 4'b0010 + dict set boardID 2 name "EVT4" + dict set boardID 2 ddr2size 256M + + return $boardID +} + +# converted from u-boot/boards/mindspeed/ooma-darwin/board.c:ooma_board_detect() +# figure out what board revision this is, uses BOOTSTRAP register to read stuffed resistors +proc ooma_board_detect {} { + set GPIO_BOOTSTRAP_REG [regs GPIO_BOOTSTRAP_REG] + + # read the current value of the BOOTSRAP pins + set tmp [mrw $GPIO_BOOTSTRAP_REG] + puts [format "GPIO_BOOTSTRAP_REG (0x%x): 0x%x" $GPIO_BOOTSTRAP_REG $tmp] + # extract the GPBP bits + set gpbt [expr ($tmp &0x1C00) >> 10 | ($tmp & 0x40) >>3] + + # display board ID + puts [format "This is %s (0x%x)" [dict get [boardID $gpbt] $gpbt name] $gpbt] + # return the ddr2 size, used to configure DDR2 on a given board. + return [dict get [boardID $gpbt] $gpbt ddr2size] +} + +proc configureDDR2regs_256M {} { + puts "ConfigureDDR2regs_256M TBD" +} + +# converted from u-boot/cpu/arm1136/comcerto/bsp100.c:config_board99() +# The values are computed based on Mindspeed and Nanya datasheets +proc configureDDR2regs_128M {} { + + set DENALI_CTL_00_DATA [regs DENALI_CTL_00_DATA] + set DENALI_CTL_01_DATA [regs DENALI_CTL_01_DATA] + set DENALI_CTL_02_DATA [regs DENALI_CTL_02_DATA] + set DENALI_CTL_03_DATA [regs DENALI_CTL_03_DATA] + set DENALI_CTL_04_DATA [regs DENALI_CTL_04_DATA] + set DENALI_CTL_05_DATA [regs DENALI_CTL_05_DATA] + set DENALI_CTL_06_DATA [regs DENALI_CTL_06_DATA] + set DENALI_CTL_07_DATA [regs DENALI_CTL_07_DATA] + set DENALI_CTL_08_DATA [regs DENALI_CTL_08_DATA] + set DENALI_CTL_09_DATA [regs DENALI_CTL_09_DATA] + set DENALI_CTL_10_DATA [regs DENALI_CTL_10_DATA] + set DENALI_CTL_11_DATA [regs DENALI_CTL_11_DATA] + set DENALI_CTL_12_DATA [regs DENALI_CTL_12_DATA] + set DENALI_CTL_13_DATA [regs DENALI_CTL_13_DATA] + set DENALI_CTL_14_DATA [regs DENALI_CTL_14_DATA] + set DENALI_CTL_15_DATA [regs DENALI_CTL_15_DATA] + set DENALI_CTL_16_DATA [regs DENALI_CTL_16_DATA] + set DENALI_CTL_17_DATA [regs DENALI_CTL_17_DATA] + set DENALI_CTL_18_DATA [regs DENALI_CTL_18_DATA] + set DENALI_CTL_19_DATA [regs DENALI_CTL_19_DATA] + set DENALI_CTL_20_DATA [regs DENALI_CTL_20_DATA] + + + set DENALI_CTL_02_VAL 0x0100010000010100 + set DENALI_CTL_11_VAL 0x433A42124A650A37 + # set some default values + mw64bit $DENALI_CTL_00_DATA 0x0100000101010101 + mw64bit $DENALI_CTL_01_DATA 0x0100000100000101 + mw64bit $DENALI_CTL_02_DATA $DENALI_CTL_02_VAL + mw64bit $DENALI_CTL_03_DATA 0x0102020202020201 + mw64bit $DENALI_CTL_04_DATA 0x0201010100000201 + mw64bit $DENALI_CTL_05_DATA 0x0203010300010101 + mw64bit $DENALI_CTL_06_DATA 0x050A020200020202 + mw64bit $DENALI_CTL_07_DATA 0x000000030E0B0205 + mw64bit $DENALI_CTL_08_DATA 0x6427003F3F0A0209 + mw64bit $DENALI_CTL_09_DATA 0x1A00002F00001A00 + mw64bit $DENALI_CTL_10_DATA 0x01202020201A1A1A + mw64bit $DENALI_CTL_11_DATA $DENALI_CTL_11_VAL + mw64bit $DENALI_CTL_12_DATA 0x0000080000000800 + mw64bit $DENALI_CTL_13_DATA 0x0010002000100040 + mw64bit $DENALI_CTL_14_DATA 0x0010004000100040 + mw64bit $DENALI_CTL_15_DATA 0x0508000000000000 + mw64bit $DENALI_CTL_16_DATA 0x000020472D200000 + mw64bit $DENALI_CTL_17_DATA 0x0000000008000000 + mw64bit $DENALI_CTL_18_DATA 0x0302000000000000 + mw64bit $DENALI_CTL_19_DATA 0x00001400C8030604 + mw64bit $DENALI_CTL_20_DATA 0x00000000823600C8 + + set wr_dqs_shift 0x40 + # start DDRC + mw64bit $DENALI_CTL_02_DATA [expr $DENALI_CTL_02_VAL | (1 << 32)] + # wait int_status[2] (DRAM init complete) + puts -nonewline "Waiting for DDR2 controller to init..." + set tmp [mrw [expr $DENALI_CTL_08_DATA + 4]] + while { [expr $tmp & 0x040000] == 0 } { + sleep 1 + set tmp [mrw [expr $DENALI_CTL_08_DATA + 4]] + } + mw64bit $DENALI_CTL_11_DATA [expr ($DENALI_CTL_11_VAL & ~0x00007F0000000000) | ($wr_dqs_shift << 40) ] + puts "done." + + # do ddr2 training sequence + # TBD (for now, if you need it, run trainDDR command) +} + + + +proc setupUART0 {} { + # configure UART0 to 115200, 8N1 + set GPIO_LOCK_REG [regs GPIO_LOCK_REG] + set GPIO_IOCTRL_REG [regs GPIO_IOCTRL_REG] + set GPIO_IOCTRL_VAL [regs GPIO_IOCTRL_VAL] + set GPIO_IOCTRL_UART0 [regs GPIO_IOCTRL_UART0] + set UART0_LCR [regs UART0_LCR] + set LCR_DLAB [regs LCR_DLAB] + set UART0_DLL [regs UART0_DLL] + set UART0_DLH [regs UART0_DLH] + set UART0_IIR [regs UART0_IIR] + set UART0_IER [regs UART0_IER] + set LCR_ONE_STOP [regs LCR_ONE_STOP] + set LCR_CHAR_LEN_8 [regs LCR_CHAR_LEN_8] + set FCR_XMITRES [regs FCR_XMITRES] + set FCR_RCVRRES [regs FCR_RCVRRES] + set FCR_FIFOEN [regs FCR_FIFOEN] + set IER_UUE [regs IER_UUE] + + # unlock writing to IOCTRL register + mww $GPIO_LOCK_REG $GPIO_IOCTRL_VAL + # enable UART0 + mmw $GPIO_IOCTRL_REG $GPIO_IOCTRL_UART0 0x0 + # baudrate 115200 + # This should really be amba_clk/(16*115200) but amba_clk=165MHz + set tmp 89 + # Enable Divisor Latch access + mmw $UART0_LCR $LCR_DLAB 0x0 + # set the divisor to $tmp + mww $UART0_DLL [expr $tmp & 0xff] + mww $UART0_DLH [expr $tmp >> 8] + # Disable Divisor Latch access + mmw $UART0_LCR 0x0 $LCR_DLAB + # set the UART to 8N1 + mmw $UART0_LCR [expr $LCR_ONE_STOP | $LCR_CHAR_LEN_8 ] 0x0 + # reset FIFO + mmw $UART0_IIR [expr $FCR_XMITRES | $FCR_RCVRRES | $FCR_FIFOEN ] 0x0 + # enable FFUART + mww $UART0_IER $IER_UUE +} + +proc putcUART0 {char} { + + set UART0_LSR [regs UART0_LSR] + set UART0_THR [regs UART0_THR] + set LSR_TEMT [regs LSR_TEMT] + + # convert the 'char' to digit + set tmp [ scan $char %c ] + # /* wait for room in the tx FIFO on FFUART */ + while {[expr [mrw $UART0_LSR] & $LSR_TEMT] == 0} { sleep 1 } + mww $UART0_THR $tmp + if { $char == "\n" } { putcUART0 \r } +} + +proc putsUART0 {str} { + set index 0 + set len [string length $str] + while { $index < $len } { + putcUART0 [string index $str $index] + set index [expr $index + 1] + } +} + + +proc trainDDR2 {} { + set ARAM_BASEADDR [regs ARAM_BASEADDR] + + # you must have run 'reset init' or u-boot + # load the training code to ARAM + load_image ./images/ddr2train.bin $ARAM_BASEADDR bin + # set PC to start of NOR (at boot 0x20000000 = 0x0) + reg pc $ARAM_BASEADDR + # run + resume +} + +proc flashUBOOT {} { + # this will update uboot on NOR partition + set EXP_CS0_BASEADDR [regs EXP_CS0_BASEADDR] + + # setup CS0 controller for NOR + setupNOR + # make sure we are accessing the lower part of NOR + lowGPIO5 + flash probe 0 + puts "Erasing sectors 0-3 for uboot" + flash erase_sector 0 0 3 + puts "Programming u-boot, takes about 4-5 min for 256kb" + flash write_image ./images/u-boot.bin $EXP_CS0_BASEADDR +}
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