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| author |   Paul Walmsley <paul@pwsan.com> | 2012-10-21 01:01:13 -0600 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2012-10-21 01:01:13 -0600 |
| commit | 2bb2a5d30abb0dc99d074877bfad2056142c730b (patch) | |
| tree | 6da1f32009cec6777baa0a474f7c2579cc57a6bc /arch/arm/mach-omap2/prm2xxx_3xxx.h | |
| parent | ARM: OMAP1: create read_reset_sources() function (for initial use by watchdog) (diff) | |
| download | linux-dev-2bb2a5d30abb0dc99d074877bfad2056142c730b.tar.xz linux-dev-2bb2a5d30abb0dc99d074877bfad2056142c730b.zip | |
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 <paul@pwsan.com>
Diffstat (limited to 'arch/arm/mach-omap2/prm2xxx_3xxx.h')
| -rw-r--r-- | arch/arm/mach-omap2/prm2xxx_3xxx.h | 2 |
1 files changed, 2 insertions, 0 deletions
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) /* |