6efaa95c44
Without some extra delay after releasing SRST, we seemed to be trying to talk to the TAP before it was ready to respond. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
53 lines
1.1 KiB
INI
53 lines
1.1 KiB
INI
# TI OMAP5912 dual core processor
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# http://focus.ti.com/docs/prod/folders/print/omap5912.html
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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 omap5912
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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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# NOTE: validated with XOMAP5912 part
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set _CPUTAPID 0x0692602f
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}
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jtag_nsrst_delay 100
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# NOTE: presumes irlen 38 is the C55x DSP, matching BSDL for
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# its standalone siblings (like TMS320VC5502) of the same era
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#jtag scan chain
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jtag newtap $_CHIPNAME dsp -irlen 38 -expected-id 0x03df1d81
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jtag newtap $_CHIPNAME arm -irlen 4 -expected-id $_CPUTAPID
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jtag newtap $_CHIPNAME unknown -irlen 8
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set _TARGETNAME $_CHIPNAME.arm
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target create $_TARGETNAME arm926ejs -chain-position $_TARGETNAME
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proc omap5912_reset {} {
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#
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# halt target
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#
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poll
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sleep 1
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halt
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wait_halt
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#
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# disable wdt
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#
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mww 0xfffec808 0x000000f5
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mww 0xfffec808 0x000000a0
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mww 0xfffeb048 0x0000aaaa
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sleep 500
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mww 0xfffeb048 0x00005555
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sleep 500
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}
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# omap5912 lcd frame buffer as working area
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$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x20000000 \
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-work-area-size 0x3e800 -work-area-backup 0
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