From 702395073fa746f0dcfe6f16f781b4d84645fc40 Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Tue, 29 May 2012 19:26:41 +0000 Subject: 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 Signed-off-by: R Sricharan --- arch/arm/cpu/armv7/omap-common/reset.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm/cpu') 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); +} -- cgit v1.1