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>
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 @@
{
writel(PRM_RSTCTRL_RESET, PRM_RSTCTRL);
}
+
+u32 __weak warm_reset(void)
+{
+ return (readl(PRM_RSTST) & PRM_RSTST_WARM_RESET_MASK);
+}