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further initialization of SDRAM for gcc

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This commit is contained in:
Markus Fröschle
2012-10-23 08:10:51 +00:00
parent 508cd9d571
commit b4da7d0178
1 changed files with 23 additions and 18 deletions
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41
5474.gdb
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@@ -7,8 +7,8 @@
#
define addresses
set $mbar = 0xFF000000
set $vbr = 0x00000000
set $mbar = 0xFF000000
set $rambar0 = 0xFF100000
set $rambar1 = 0xFF101000
end
@@ -19,25 +19,30 @@ end
define setup-dram
# Init CS0 (BootFLASH @ E000_0000 - E07F_FFFF 8Mbytes)
set *((long *) 0xFF000500) = 0xE0000000
set *((long *) 0xFF000508) = 0x00001180
set *((long *) 0xFF000504) = 0x007F0001
set *((long *) 0xFF000500) = 0xE0000000 # flash address
set *((long *) 0xFF000508) = 0x00001180 # 16 bit 4ws aa
set *((long *) 0xFF000504) = 0x007F0001 # 8MB on
# set *((long *) 0xFF00050C) = 0xFFF00000 # ATARI I/O address
# SDRAM Initialization @ 0000_0000 - 1FFF_FFFF 512Mbytes
# SDRAMDS configuration
set *((long *) 0xFF000004) = 0x000002AA
# SDRAM CS0 configuration (128Mbytes 0000_0000 - 07FF_FFFF)
set *((long *) 0xFF000020) = 0x0000001A
# SDRAM CS1 configuration (128Mbytes 0800_0000 - 0FFF_FFFF)
set *((long *) 0xFF000024) = 0x0800001A
# SDRAM CS2 configuration (128Mbytes 1000_0000 - 17FF_FFFF)
set *((long *) 0xFF000028) = 0x1000001A
# SDRAM CS3 configuration (128Mbytes 1800_0000 - 1FFF_FFFF)
set *((long *) 0xFF00002C) = 0x1800001A
# SDCFG1
set *((long *) 0xFF000108) = 0x53722938
# SDCFG2
set *((long *) 0xFF00010C) = 0x24330000
set *((long *) 0xFF000004) = 0x000002AA # SDRAMDS configuration
set *((long *) 0xFF000020) = 0x0000001A # SDRAM CS0 configuration (128Mbytes 0000_0000 - 07FF_FFFF)
set *((long *) 0xFF000024) = 0x0800001A # SDRAM CS1 configuration (128Mbytes 0800_0000 - 0FFF_FFFF)
set *((long *) 0xFF000028) = 0x1000001A # SDRAM CS2 configuration (128Mbytes 1000_0000 - 17FF_FFFF)
set *((long *) 0xFF00002C) = 0x1800001A # SDRAM CS3 configuration (128Mbytes 1800_0000 - 1FFF_FFFF)
set *((long *) 0xFF000108) = 0x73622830 # SDCFG1
set *((long *) 0xFF00010C) = 0x46770000 # SDCFG2
set *((long *) 0xFF000104) = 0xE10D0002 # SDCR + IPALL
set *((long *) 0xFF000100) = 0x40010000 # SDMR (write to LEMR)
set *((long *) 0xFF000100) = 0x048D0000 # SDMR (write to LMR)
set *((long *) 0xFF000104) = 0xE10D0002 # SDCR + IPALL
set *((long *) 0xFF000104) = 0xE10D0004 # SDCR + IREF (first refresh)
set *((long *) 0xFF000104) = 0xE10D0004 # SDCR + IREF (first refresh)
set *((long *) 0xFF000100) = 0x008D0000 # SDMR (write to LMR)
set *((long *) 0xFF000104) = 0x710D0F00 # SDCR (lock SDMR and enable refresh)
end
#