From 29f0ac0efd112f058fc2058665bb66daa80fb9f7 Mon Sep 17 00:00:00 2001 From: "B. A. Bryce" Date: Tue, 2 Aug 2011 11:33:03 +0100 Subject: [PATCH] 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 --- tcl/target/stellaris.cfg | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/tcl/target/stellaris.cfg b/tcl/target/stellaris.cfg index d6314987..b985de05 100644 --- a/tcl/target/stellaris.cfg +++ b/tcl/target/stellaris.cfg @@ -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 -- 2.39.5