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.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm/mach-omap2/prm2xxx.h') diff --git a/arch/arm/mach-omap2/prm2xxx.h b/arch/arm/mach-omap2/prm2xxx.h index 6d76716a1ea5..1d97112524f1 100644 --- a/arch/arm/mach-omap2/prm2xxx.h +++ b/arch/arm/mach-omap2/prm2xxx.h @@ -123,6 +123,10 @@ /* Function prototypes */ extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm); extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm); + +extern int __init prm2xxx_init(void); +extern int __exit prm2xxx_exit(void); + #endif #endif -- cgit v1.2.3-55-g7522