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cfg: allow stellaris device class override 

Some devices, eg. The Tempest class return the wrong device class
when queried. Add the ability to manually override the device class.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
This commit is contained in:
B. A. Bryce 2011-08-02 11:33:03 +01:00 committed by Spencer Oliver
parent d02dfff48b
commit 29f0ac0efd
1 changed files with 20 additions and 1 deletions
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21
tcl/target/stellaris.cfg
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@ -1,5 +1,17 @@
# TI/Luminary Stellaris LM3S chip family
# Some devices have errata in returning their device class.
# DEVICECLASS is provided as a manual override
# Manual setting of a device class of 0xff is not allowed
global _DEVICECLASS
if { [info exists DEVICECLASS ] } {
set _DEVICECLASS $DEVICECLASS
} else {
set _DEVICECLASS 0xff
}
# Luminary chips support both JTAG and SWD transports.
# Adapt based on what transport is active.
source [find target/swj-dp.tcl]
@ -74,7 +86,14 @@ $_TARGETNAME configure -event reset-start {
# /openocd-development/2008-August/003065.html
#
set device_class [expr (([mrw 0x400fe000] >> 16) & 0xff)]
global _DEVICECLASS
if {$_DEVICECLASS != 0xff} {
set device_class $_DEVICECLASS
} else {
set device_class [expr (([mrw 0x400fe000] >> 16) & 0xff)]
}
if {$device_class == 0 || $device_class == 1 || $device_class == 3} {
# Sandstorm, Fury and DustDevil are able to use NVIC SYSRESETREQ
cortex_m3 reset_config sysresetreq