From 2bb2a5d30abb0dc99d074877bfad2056142c730b Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Sun, 21 Oct 2012 01:01:13 -0600 Subject: ARM: OMAP2+: PRM: create PRM reset source API for the watchdog timer driver The OMAP watchdog timer driver needs to determine what caused the SoC to reset for its GETBOOTSTATUS ioctl. So, define a set of standard reset sources across OMAP SoCs. For OMAP2xxx, 3xxx, and 4xxx SoCs, define mappings from the SoC-specific reset source register bits to the standardized reset source IDs. Create SoC-specific PRM functions that read the appropriate per-SoC register and use the mapping to return the standardized reset bits. Register the SoC-specific PRM functions with the common PRM code via prm_register(). Create a function in the common PRM code, prm_read_reset_sources(), that calls the SoC-specific function, registered during boot. This patch does not yet handle some SoCs, such as AM33xx. Those SoCs were not handled by the code this will replace. Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/prm2xxx_3xxx.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/mach-omap2/prm2xxx_3xxx.h') diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.h b/arch/arm/mach-omap2/prm2xxx_3xxx.h index 22a405a1543b..3330b1bf789d 100644 --- a/arch/arm/mach-omap2/prm2xxx_3xxx.h +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.h @@ -211,7 +211,9 @@ extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm); * * 3430: RM_RSTST_CORE, RM_RSTST_EMU */ +#define OMAP_GLOBALWARM_RST_SHIFT 1 #define OMAP_GLOBALWARM_RST_MASK (1 << 1) +#define OMAP_GLOBALCOLD_RST_SHIFT 0 #define OMAP_GLOBALCOLD_RST_MASK (1 << 0) /* -- cgit v1.2.3