diff options
| author | Per Fransson <per.xx.fransson@stericsson.com> | 2011-09-23 14:11:24 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2012-01-05 10:07:40 +0000 |
| commit | 903b2d2e3cd721f5599986c3fc49ce31f0f11248 (patch) | |
| tree | 41bb2c68661f6dfdfe36413f20b3ebecab727a10 /arch/arm | |
| parent | 348e543b28039f9f5e4396a2cd275666d4ab5a3f (diff) | |
ux500: Start crash dump through SW reset
When using kexec/kdump without an crash kernel image loaded:
* clean the caches and write the crash_notes
* perform a restart
ST-Ericsson ID: 340331
Change-Id: I1ae34ed2b5e43da4849650a8a7d2f1e453dcbe93
Signed-off-by: Per Fransson <per.xx.fransson@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32678
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig | 7 | ||||
| -rw-r--r-- | arch/arm/kernel/machine_kexec.c | 10 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 2218c2a3d8f..557078c2ec4 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -2022,6 +2022,13 @@ config KEXEC initially work for you. It may help to enable device hotplugging support. +config CRASH_SWRESET + bool "Perform a software reset at a panic (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on KEXEC + help + If no crash kernel has been loaded, perform a SW reset as plan B. + config ATAGS_PROC bool "Export atags in procfs" depends on KEXEC diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index ae1d73a15d3..2a9c3430115 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -123,3 +123,13 @@ void machine_kexec(struct kimage *image) flush_cache_all(); cpu_reset(reboot_code_buffer_phys); } + +void machine_crash_swreset(void) +{ + printk(KERN_INFO "Software reset on panic!\n"); + + flush_cache_all(); + outer_flush_all(); + outer_disable(); + arm_pm_restart(0, NULL); +} |