55 lines
1.8 KiB
Plaintext
55 lines
1.8 KiB
Plaintext
#
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# GDB Init script for the Coldfire 5206 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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#
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define addresses
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set $vbr = 0x00000000
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set $mbar = 0xFF000000
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set $rambar0 = 0xFF100000
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set $rambar1 = 0xFF101000
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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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# Init CS0 (BootFLASH @ E000_0000 - E07F_FFFF 8Mbytes)
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set *((long *) 0xFF000500) = 0xE0000000 # flash address
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set *((long *) 0xFF000508) = 0x00041180 # 16 bit 4ws aa
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set *((long *) 0xFF000504) = 0x007F0001 # 8MB on
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# set *((long *) 0xFF00050C) = 0xFFF00000 # ATARI I/O address
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# SDRAM Initialization @ 0000_0000 - 1FFF_FFFF 512Mbytes
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set *((long *) 0xFF000004) = 0x000002AA # SDRAMDS configuration
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set *((long *) 0xFF000020) = 0x0000001A # SDRAM CS0 configuration (128Mbytes 0000_0000 - 07FF_FFFF)
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set *((long *) 0xFF000024) = 0x0800001A # SDRAM CS1 configuration (128Mbytes 0800_0000 - 0FFF_FFFF)
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set *((long *) 0xFF000028) = 0x1000001A # SDRAM CS2 configuration (128Mbytes 1000_0000 - 17FF_FFFF)
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set *((long *) 0xFF00002C) = 0x1800001A # SDRAM CS3 configuration (128Mbytes 1800_0000 - 1FFF_FFFF)
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set *((long *) 0xFF000108) = 0x73622830 # SDCFG1
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set *((long *) 0xFF00010C) = 0x46770000 # SDCFG2
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set *((long *) 0xFF000104) = 0xE10D0002 # SDCR + IPALL
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set *((long *) 0xFF000100) = 0x40010000 # SDMR (write to LEMR)
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set *((long *) 0xFF000100) = 0x048D0000 # SDMR (write to LMR)
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set *((long *) 0xFF000104) = 0xE10D0002 # SDCR + IPALL
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set *((long *) 0xFF000104) = 0xE10D0004 # SDCR + IREF (first refresh)
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set *((long *) 0xFF000104) = 0xE10D0004 # SDCR + IREF (first refresh)
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set *((long *) 0xFF000100) = 0x008D0000 # SDMR (write to LMR)
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set *((long *) 0xFF000104) = 0x710D0F00 # SDCR (lock SDMR and enable refresh)
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end
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#
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# Wake up the board
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#
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define initBoard
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addresses
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setup-dram
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end |