53 lines
1.2 KiB
INI
53 lines
1.2 KiB
INI
# SPDX-License-Identifier: GPL-2.0-or-later
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################################################################################
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# Author: Michael Trensch (MTrensch@googlemail.com)
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################################################################################
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#Hilscher netX 50 CPU
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if { [info exists CHIPNAME] } {
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set _CHIPNAME $CHIPNAME
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} else {
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set _CHIPNAME netx50
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}
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if { [info exists ENDIAN] } {
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set _ENDIAN $ENDIAN
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} else {
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set _ENDIAN little
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}
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if { [info exists CPUTAPID] } {
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set _CPUTAPID $CPUTAPID
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} else {
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set _CPUTAPID 0x25966021
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}
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# jtag scan chain
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jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
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# that TAP is associated with a target
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set _TARGETNAME $_CHIPNAME.cpu
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target create $_TARGETNAME arm966e -endian $_ENDIAN -chain-position $_TARGETNAME
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# On netX50 SDRAM is not accessible at offset 0xDEAD0-0xDEADF as it is busy from
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# DMA controller at init. This function will setup a dummy DMA to free this ares
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# and must be called before using SDRAM
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proc sdram_fix { } {
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mww 0x1c005830 0x00000001
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mww 0x1c005104 0xBFFFFFFC
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mww 0x1c00510c 0x00480001
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mww 0x1c005110 0x00000001
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sleep 100
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mww 0x1c00510c 0
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mww 0x1c005110 0
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mww 0x1c005830 0x00000000
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puts "SDRAM Fix executed!"
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}
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