forked from M-Labs/nac3
61 lines
1.6 KiB
INI
61 lines
1.6 KiB
INI
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#
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# TCL to allow the Xilinx PS7 Init TCL code to run in OpenOCD.
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#
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proc mrd { args } {
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if {[llength $args] == 0} {
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echo "mrd address \[count \[w|h|b\]\]"
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echo " Read <count> memory locations starting at <address>. Defaults to one word."
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return
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}
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set addr [lindex $args 0]
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set count 1
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set bits 32
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if {[llength $args] > 1} {
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set count [lindex $args 1]
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if {[llength $args] > 2} {
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switch [lindex $args 2] {
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w { set bits 32 }
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h { set bits 16 }
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b { set bits 8 }
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default { set bits 32 }
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}
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}
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}
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mem2array x $bits $addr $count
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set nibbles [expr {$bits / 4}]
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set bytes [expr {$bits / 8}]
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set result {}
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foreach {idx elmt} $x {
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append result [format "%08x: %0*x\n" [expr {$addr + $idx * $bytes}] $nibbles $elmt]
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}
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return $result
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}
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proc mwr { args } {
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set addr [lindex $args 1]
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set data [lindex $args 2]
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mww $addr $data
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}
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proc mask_write { addr mask value } {
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set curval "0x[string range [mrd $addr] end-8 end]"
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set maskedval [expr {$curval & ~$mask}]
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#echo "curval = [format 0x%08x $curval] maskedval = [format 0x%08x $maskedval]"
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set writeval(0) [expr {$maskedval | $value}]
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#echo " $addr <= [format 0x%08x $writeval(0)] ([format 0x%08x $curval]: [format 0x%08x $mask]/[format 0x%08x $value])"
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array2mem writeval 32 $addr 1
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}
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proc xilinx_ps7_init { } {
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poll off
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reset init
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reset halt
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targets zynq.cpu.0
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sleep 100
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halt
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ps7_debug
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ps7_init
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ps7_post_config
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poll on
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}
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