46 lines
1.1 KiB
INI
46 lines
1.1 KiB
INI
#Hilscher netX 500 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 netx500
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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 0x07926021
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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 arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME
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proc mread32 {addr} {
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return [read_memory $addr 32 1]
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}
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# This function must be called on netX100/500 right after halt
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# If it is called later the needed register cannot be written anymore
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proc sdram_fix { } {
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set accesskey [mread32 0x00100070]
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mww 0x00100070 $accesskey
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mww 0x0010002c 0x00000001
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if {[expr {[mread32 0x0010002c] & 0x07}] == 0x07} {
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puts "SDRAM Fix was not executed. Probably your CPU halted too late and the register is already locked!"
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} else {
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puts "SDRAM Fix succeeded!"
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}
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}
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