91 lines
2.1 KiB
INI
91 lines
2.1 KiB
INI
# SPDX-License-Identifier: GPL-2.0-or-later
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source [find target/lpc3250.cfg]
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adapter srst delay 200
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jtag_ntrst_delay 1
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adapter speed 200
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reset_config trst_and_srst separate
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arm7_9 dcc_downloads enable
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$_TARGETNAME configure -event gdb-attach { reset init }
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$_TARGETNAME configure -event reset-start {
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arm7_9 fast_memory_access disable
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adapter speed 200
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}
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$_TARGETNAME configure -event reset-end {
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adapter speed 6000
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arm7_9 fast_memory_access enable
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}
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$_TARGETNAME configure -event reset-init { phytec_lpc3250_init }
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# Bare-bones initialization of core clocks and SDRAM
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proc phytec_lpc3250_init { } {
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# Set clock dividers
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# ARMCLK = 266.5 MHz
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# HCLK = 133.25 MHz
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# PERIPHCLK = 13.325 MHz
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mww 0x400040BC 0
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mww 0x40004050 0x140
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mww 0x40004040 0x4D
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mww 0x40004058 0x16250
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# Init PLLs
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mww 0x40004044 0x006
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sleep 1 busy
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mww 0x40004044 0x106
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sleep 1 busy
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mww 0x40004044 0x006
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sleep 1 busy
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mww 0x40004048 0x2
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# Init SDRAM with 133 MHz timings
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mww 0x40028134 0x00FFFFFF
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mww 0x4002802C 0x00000008
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mww 0x31080000 1
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mww 0x31080008 0
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mww 0x40004068 0x1C000
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mww 0x31080028 0x11
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mww 0x31080400 0
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mww 0x31080440 0
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mww 0x31080460 0
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mww 0x31080480 0
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# Delays
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mww 0x31080030 1
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mww 0x31080034 6
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mww 0x31080038 10
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mww 0x31080044 1
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mww 0x31080048 9
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mww 0x3108004C 12
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mww 0x31080050 10
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mww 0x31080054 1
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mww 0x31080058 1
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mww 0x3108005C 0
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mww 0x31080100 0x5680
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mww 0x31080104 0x302
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# Init sequence
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mww 0x31080020 0x193
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sleep 1 busy
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mww 0x31080024 1
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mww 0x31080020 0x113
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sleep 1 busy
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mww 0x31080020 0x013
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sleep 1 busy
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mww 0x31080024 65
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mww 0x31080020 0x093
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mdw 0x80020000
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mww 0x31080020 0x013
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# SYS_CTRL remapping
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mww 0x40004014 1
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}
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