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authorLokesh Vutla <lokeshvutla@ti.com>2012-05-29 19:26:41 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-07-07 14:07:34 +0200
commit702395073fa746f0dcfe6f16f781b4d84645fc40 (patch)
tree652a81818ad8afb7a9eee7e84c3df5ea6db15c66 /arch/arm/cpu/armv7
parentf8b9d1d30ece82abccefac3c860c06f8b7da8fbb (diff)
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ARM: OMAP3+: Detect reset type
Certain modules are not affected by means of a warm reset and need not be configured again. Adding an API to detect the reset reason warm/cold. This will be used to skip the module configurations that are retained across a warm reset. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: R Sricharan <r.sricharan@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7')
-rw-r--r--arch/arm/cpu/armv7/omap-common/reset.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/reset.c b/arch/arm/cpu/armv7/omap-common/reset.c
index 234e90a..587bb47 100644
--- a/arch/arm/cpu/armv7/omap-common/reset.c
+++ b/arch/arm/cpu/armv7/omap-common/reset.c
@@ -34,3 +34,8 @@ void __weak reset_cpu(unsigned long ignored)
{
writel(PRM_RSTCTRL_RESET, PRM_RSTCTRL);
}
+
+u32 __weak warm_reset(void)
+{
+ return (readl(PRM_RSTST) & PRM_RSTST_WARM_RESET_MASK);
+}