1# 2# GDB Init script for the Coldfire 5272 processor. 3# 4# The main purpose of this script is to configure the 5# DRAM controller so code can be loaded. 6# 7# This file was changed to suite the senTec COBRA5272 board. 8# 9 10define addresses 11 12set $mbar = 0x10000001 13set $scr = $mbar - 1 + 0x004 14set $spr = $mbar - 1 + 0x006 15set $pmr = $mbar - 1 + 0x008 16set $apmr = $mbar - 1 + 0x00e 17set $dir = $mbar - 1 + 0x010 18set $icr1 = $mbar - 1 + 0x020 19set $icr2 = $mbar - 1 + 0x024 20set $icr3 = $mbar - 1 + 0x028 21set $icr4 = $mbar - 1 + 0x02c 22set $isr = $mbar - 1 + 0x030 23set $pitr = $mbar - 1 + 0x034 24set $piwr = $mbar - 1 + 0x038 25set $pivr = $mbar - 1 + 0x03f 26set $csbr0 = $mbar - 1 + 0x040 27set $csor0 = $mbar - 1 + 0x044 28set $csbr1 = $mbar - 1 + 0x048 29set $csor1 = $mbar - 1 + 0x04c 30set $csbr2 = $mbar - 1 + 0x050 31set $csor2 = $mbar - 1 + 0x054 32set $csbr3 = $mbar - 1 + 0x058 33set $csor3 = $mbar - 1 + 0x05c 34set $csbr4 = $mbar - 1 + 0x060 35set $csor4 = $mbar - 1 + 0x064 36set $csbr5 = $mbar - 1 + 0x068 37set $csor5 = $mbar - 1 + 0x06c 38set $csbr6 = $mbar - 1 + 0x070 39set $csor6 = $mbar - 1 + 0x074 40set $csbr7 = $mbar - 1 + 0x078 41set $csor7 = $mbar - 1 + 0x07c 42set $pacnt = $mbar - 1 + 0x080 43set $paddr = $mbar - 1 + 0x084 44set $padat = $mbar - 1 + 0x086 45set $pbcnt = $mbar - 1 + 0x088 46set $pbddr = $mbar - 1 + 0x08c 47set $pbdat = $mbar - 1 + 0x08e 48set $pcddr = $mbar - 1 + 0x094 49set $pcdat = $mbar - 1 + 0x096 50set $pdcnt = $mbar - 1 + 0x098 51set $sdcr = $mbar - 1 + 0x180 52set $sdtr = $mbar - 1 + 0x184 53set $wrrr = $mbar - 1 + 0x280 54set $wirr = $mbar - 1 + 0x283 55set $wcr = $mbar - 1 + 0x288 56set $wer = $mbar - 1 + 0x28c 57 58end 59 60 61# 62# Setup system configuration 63# 64define setup-sys 65set *((unsigned short *) $scr) = 0x0003 66set *((unsigned short *) $spr) = 0xffff 67set *((unsigned char *) $pivr) = 0x4f 68end 69 70 71# 72# Setup Chip Selects (as per Motorola M5272C3 board) 73# 74define setup-cs 75 76# CS0 -- FLASH 77set *((unsigned long *) $csbr0) = 0xffe00201 78set *((unsigned long *) $csor0) = 0xffe00014 79 80# CS1 -- external bus test 81set *((unsigned long *) $csbr1) = 0x0 82set *((unsigned long *) $csor1) = 0x0 83 84# CS2 -- Optional FSRAM 85set *((unsigned long *) $csbr2) = 0x30000001 86set *((unsigned long *) $csor2) = 0xfff80000 87 88# CS3 -- not used 89set *((unsigned long *) $csbr3) = 0x0 90set *((unsigned long *) $csor3) = 0x0 91 92# CS4 -- not used 93set *((unsigned long *) $csbr4) = 0x0 94set *((unsigned long *) $csor4) = 0x0 95 96# CS5 -- PLI socket0 97set *((unsigned long *) $csbr5) = 0x0 98set *((unsigned long *) $csor5) = 0x0 99 100# CS6 -- PLI socket1 101set *((unsigned long *) $csbr6) = 0x0 102set *((unsigned long *) $csor6) = 0x0 103 104# CS7 -- SDRAM 105set *((unsigned long *) $csbr7) = 0x00000701 106set *((unsigned long *) $csor7) = 0xff00007c 107 108end 109 110 111# 112# Setup the DRAM controller. 113# 114 115define setup-dram 116set *((unsigned long *) $sdtr) = 0x0000f539 117set *((unsigned long *) $sdcr) = 0x00004211 118 119# Dummy write to start SDRAM 120set *((unsigned long *) 0) = 0 121end 122 123 124# 125# Setup for GPIO pins 126# 127define setup-ppio 128 129# PORT A -- the LED's 130set *((unsigned long *) $pacnt) = 0x00000000 131# lower 8 bits for output: 132set *((unsigned short *) $paddr) = 0xff 133# LED's off: 134set *((unsigned short *) $padat) = 0xff 135 136# PORT B 137set *((unsigned long *) $pbcnt) = 0x55554155 138set *((unsigned short *) $pbddr) = 0x0000 139set *((unsigned short *) $pbdat) = 0x17ea 140 141# PORT C 142#set *((unsigned short *) $pcddr) = 0x0000 143#set *((unsigned short *) $pcdat) = 0x1898 144 145# PORT D 146set *((unsigned long *) $pdcnt) = 0x00000000 147 148end 149 150 151# 152# Added for uClinux-coldfire target... 153# 154target bdm /dev/bdm 155 156addresses 157setup-sys 158setup-cs 159setup-dram 160setup-ppio 161set print pretty 162set print asm-demangle 163display/i $pc 164 165 166# 167load u-boot 168set $pc=0x20000 169c 170