From 8acafd1710d84c80e20156381cca54b3b5699275 Mon Sep 17 00:00:00 2001
From: ntfreak <ntfreak@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Tue, 29 Apr 2008 06:56:03 +0000
Subject: [PATCH] - updated cortex_m3 docs regarding luminary reset behaviour
git-svn-id: svn://svn.berlios.de/openocd/trunk@625 b42882b7-edfa-0310-969c-e2dbd0fdcd60
---
doc/openocd.texi | 7 +++++++
src/target/cortex_m3.c | 2 +-
src/target/target/lm3s6965.cfg | 2 +-
src/target/target/lm3s811.cfg | 2 +-
4 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/doc/openocd.texi b/doc/openocd.texi
index a2a062515..7859e9a64 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -596,6 +596,13 @@ ARM920t options are similar to ARM9TDMI options.
@cindex arm966e options
ARM966e options are similar to ARM9TDMI options.
+@subsection cortex_m3 options
+@cindex cortex_m3 options
+use variant <@var{variant}> @option{lm3s} when debugging luminary lm3s targets. This will cause
+openocd to use a software reset rather than asserting SRST to avoid a issue with clearing
+the debug registers. This is fixed in Fury Rev B, DustDevil Rev B, Tempest, these revisions will
+be detected and the normal reset behaviour used.
+
@subsection xscale options
@cindex xscale options
Supported variants are @option{ixp42x}, @option{ixp45x}, @option{ixp46x},
diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c
index 1f9674fad..ec3851667 100644
--- a/src/target/cortex_m3.c
+++ b/src/target/cortex_m3.c
@@ -710,7 +710,7 @@ int cortex_m3_assert_reset(target_t *target)
* when srst is asserted the luminary device seesm to also clear the debug registers
* which does not match the armv7 debug TRM */
- if (strcmp(cortex_m3->variant, "luminary") == 0)
+ if (strcmp(cortex_m3->variant, "lm3s") == 0)
{
/* this causes the luminary device to reset using the watchdog */
ahbap_write_system_atomic_u32(swjdp, NVIC_AIRCR, AIRCR_VECTKEY | AIRCR_SYSRESETREQ );
diff --git a/src/target/target/lm3s6965.cfg b/src/target/target/lm3s6965.cfg
index ffef12e02..9b21cba0e 100644
--- a/src/target/target/lm3s6965.cfg
+++ b/src/target/target/lm3s6965.cfg
@@ -11,7 +11,7 @@ jtag_device 4 0x1 0xf 0xe
# the luminary variant causes a software reset rather than asserting SRST
# this stops the debug registers from being cleared
# this will be fixed in later revisions of silicon
-target cortex_m3 little reset_halt 0 luminary
+target cortex_m3 little reset_halt 0 lm3s
# 4k working area at base of ram
working_area 0 0x20000000 0x4000 nobackup
diff --git a/src/target/target/lm3s811.cfg b/src/target/target/lm3s811.cfg
index 56d6410fe..9d13d7b1a 100644
--- a/src/target/target/lm3s811.cfg
+++ b/src/target/target/lm3s811.cfg
@@ -11,7 +11,7 @@ jtag_device 4 0x1 0xf 0xe
# the luminary variant causes a software reset rather than asserting SRST
# this stops the debug registers from being cleared
# this will be fixed in later revisions of silicon
-target cortex_m3 little reset_halt 0 luminary
+target cortex_m3 little reset_halt 0 lm3s
# 2k working area at base of ram
working_area 0 0x20000000 0x2000 nobackup
--
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