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# page 3-34 of "MCIMC27 Multimedia Applications Processor Reference Manual, Rev 0.3"
# SRST pulls TRST
#
# Without setting these options correctly you'll see all sorts
# of weird errors, e.g. MOE=0xe, invalid cpsr values, reset
# failing, etc.
reset_config trst_and_srst srst_pulls_trst
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME imx27
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
# Note above there are 2 taps
# trace buffer
if { [info exists ETBTAPID ] } {
set _ETBTAPID $ETBTAPID
} else {
set _ETBTAPID 0x1b900f0f
}
jtag newtap $_CHIPNAME etb -irlen 4 -irmask 0xf -expected-id $_ETBTAPID
# The CPU tap
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x07926121
}
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
# Create the GDB Target.
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm926ejs
# REVISIT what operating environment sets up this virtual address mapping?
$_TARGETNAME configure -work-area-virt 0xffff4c00 -work-area-phys 0xffff4c00 \
-work-area-size 0x8000 -work-area-backup 1
# Internal to the chip, there is 45K of SRAM
#
arm7_9 dcc_downloads enable
# trace setup
etm config $_TARGETNAME 16 normal full etb
etb config $_TARGETNAME $_CHIPNAME.etb
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