170 lines
3.6 KiB
Plaintext
170 lines
3.6 KiB
Plaintext
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#
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# GDB Init script for the Coldfire 5272 processor.
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#
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# The main purpose of this script is to configure the
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# DRAM controller so code can be loaded.
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#
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# This file was changed to suite the senTec COBRA5272 board.
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#
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define addresses
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set $mbar = 0x10000001
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set $scr = $mbar - 1 + 0x004
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set $spr = $mbar - 1 + 0x006
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set $pmr = $mbar - 1 + 0x008
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set $apmr = $mbar - 1 + 0x00e
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set $dir = $mbar - 1 + 0x010
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set $icr1 = $mbar - 1 + 0x020
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set $icr2 = $mbar - 1 + 0x024
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set $icr3 = $mbar - 1 + 0x028
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set $icr4 = $mbar - 1 + 0x02c
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set $isr = $mbar - 1 + 0x030
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set $pitr = $mbar - 1 + 0x034
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set $piwr = $mbar - 1 + 0x038
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set $pivr = $mbar - 1 + 0x03f
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set $csbr0 = $mbar - 1 + 0x040
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set $csor0 = $mbar - 1 + 0x044
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set $csbr1 = $mbar - 1 + 0x048
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set $csor1 = $mbar - 1 + 0x04c
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set $csbr2 = $mbar - 1 + 0x050
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set $csor2 = $mbar - 1 + 0x054
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set $csbr3 = $mbar - 1 + 0x058
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set $csor3 = $mbar - 1 + 0x05c
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set $csbr4 = $mbar - 1 + 0x060
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set $csor4 = $mbar - 1 + 0x064
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set $csbr5 = $mbar - 1 + 0x068
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set $csor5 = $mbar - 1 + 0x06c
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set $csbr6 = $mbar - 1 + 0x070
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set $csor6 = $mbar - 1 + 0x074
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set $csbr7 = $mbar - 1 + 0x078
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set $csor7 = $mbar - 1 + 0x07c
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set $pacnt = $mbar - 1 + 0x080
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set $paddr = $mbar - 1 + 0x084
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set $padat = $mbar - 1 + 0x086
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set $pbcnt = $mbar - 1 + 0x088
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set $pbddr = $mbar - 1 + 0x08c
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set $pbdat = $mbar - 1 + 0x08e
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set $pcddr = $mbar - 1 + 0x094
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set $pcdat = $mbar - 1 + 0x096
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set $pdcnt = $mbar - 1 + 0x098
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set $sdcr = $mbar - 1 + 0x180
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set $sdtr = $mbar - 1 + 0x184
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set $wrrr = $mbar - 1 + 0x280
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set $wirr = $mbar - 1 + 0x283
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set $wcr = $mbar - 1 + 0x288
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set $wer = $mbar - 1 + 0x28c
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end
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#
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# Setup system configuration
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#
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define setup-sys
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set *((unsigned short *) $scr) = 0x0003
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set *((unsigned short *) $spr) = 0xffff
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set *((unsigned char *) $pivr) = 0x4f
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end
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#
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# Setup Chip Selects (as per Motorola M5272C3 board)
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#
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define setup-cs
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# CS0 -- FLASH
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set *((unsigned long *) $csbr0) = 0xffe00201
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set *((unsigned long *) $csor0) = 0xffe00014
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# CS1 -- external bus test
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set *((unsigned long *) $csbr1) = 0x0
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set *((unsigned long *) $csor1) = 0x0
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# CS2 -- Optional FSRAM
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set *((unsigned long *) $csbr2) = 0x30000001
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set *((unsigned long *) $csor2) = 0xfff80000
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# CS3 -- not used
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set *((unsigned long *) $csbr3) = 0x0
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set *((unsigned long *) $csor3) = 0x0
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# CS4 -- not used
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set *((unsigned long *) $csbr4) = 0x0
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set *((unsigned long *) $csor4) = 0x0
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# CS5 -- PLI socket0
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set *((unsigned long *) $csbr5) = 0x0
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set *((unsigned long *) $csor5) = 0x0
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# CS6 -- PLI socket1
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set *((unsigned long *) $csbr6) = 0x0
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set *((unsigned long *) $csor6) = 0x0
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# CS7 -- SDRAM
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set *((unsigned long *) $csbr7) = 0x00000701
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set *((unsigned long *) $csor7) = 0xff00007c
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end
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#
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# Setup the DRAM controller.
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#
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define setup-dram
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set *((unsigned long *) $sdtr) = 0x0000f539
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set *((unsigned long *) $sdcr) = 0x00004211
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# Dummy write to start SDRAM
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set *((unsigned long *) 0) = 0
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end
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#
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# Setup for GPIO pins
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#
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define setup-ppio
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# PORT A -- the LED's
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set *((unsigned long *) $pacnt) = 0x00000000
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# lower 8 bits for output:
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set *((unsigned short *) $paddr) = 0xff
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# LED's off:
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set *((unsigned short *) $padat) = 0xff
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# PORT B
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set *((unsigned long *) $pbcnt) = 0x55554155
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set *((unsigned short *) $pbddr) = 0x0000
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set *((unsigned short *) $pbdat) = 0x17ea
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# PORT C
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#set *((unsigned short *) $pcddr) = 0x0000
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#set *((unsigned short *) $pcdat) = 0x1898
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# PORT D
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set *((unsigned long *) $pdcnt) = 0x00000000
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end
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#
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# Added for uClinux-coldfire target...
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#
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target bdm /dev/bdm
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addresses
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setup-sys
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setup-cs
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setup-dram
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setup-ppio
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set print pretty
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set print asm-demangle
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display/i $pc
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#
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load u-boot
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set $pc=0x20000
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c
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