openocd/tcl/target/pxa255.cfg
Antonio Borneo e6505b0489 tcl/target: add SPDX tag
For historical reasons, no license information was added to the
tcl files. This makes trivial adding the SPDX tag through script:
	fgrep -rL SPDX tcl/ target| while read a;do \
	sed -i '1{i# SPDX-License-Identifier: GPL-2.0-or-later\n
	}' $a;done

With no specific license information from the author, let's extend
the OpenOCD project license GPL-2.0-or-later to the files.

Change-Id: I7b2610300b24cccd07bfa6fb5f1266970d5d3a1b
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7027
Tested-by: jenkins
2022-06-24 21:53:35 +00:00

62 lines
1.5 KiB
INI

# SPDX-License-Identifier: GPL-2.0-or-later
# PXA255 chip ... originally from Intel, PXA line was sold to Marvell.
# This chip is now at end-of-life. Final orders have been taken.
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME pxa255
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x69264013
}
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id $_CPUTAPID
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME xscale -endian $_ENDIAN \
-chain-position $_CHIPNAME.cpu
# PXA255 comes out of reset using 3.6864 MHz oscillator.
# Until the PLL kicks in, keep the JTAG clock slow enough
# that we get no errors.
adapter speed 300
$_TARGETNAME configure -event "reset-start" { adapter speed 300 }
# both TRST and SRST are *required* for debug
# DCSR is often accessed with SRST active
reset_config trst_and_srst separate srst_nogate
# reset processing that works with PXA
proc init_reset {mode} {
# assert both resets; equivalent to power-on reset
adapter assert trst assert srst
# drop TRST after at least 32 cycles
sleep 1
adapter deassert trst assert srst
# minimum 32 TCK cycles to wake up the controller
runtest 50
# now the TAP will be responsive; validate scanchain
jtag arp_init
# ... and take it out of reset
adapter deassert trst deassert srst
}
proc jtag_init {} {
init_reset startup
}