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author | Paul Walmsley <paul@pwsan.com> | 2012-10-21 09:01:13 +0200 |
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committer | Paul Walmsley <paul@pwsan.com> | 2012-10-21 09:01:13 +0200 |
commit | 2bb2a5d30abb0dc99d074877bfad2056142c730b (patch) | |
tree | 6da1f32009cec6777baa0a474f7c2579cc57a6bc /arch/arm/mach-omap2/omap4-common.c | |
parent | ARM: OMAP1: create read_reset_sources() function (for initial use by watchdog) (diff) | |
download | linux-2bb2a5d30abb0dc99d074877bfad2056142c730b.tar.xz linux-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/omap4-common.c')
0 files changed, 0 insertions, 0 deletions