summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/prm44xx.h
diff options
context:
space:
mode:
authorPaul Walmsley <paul@pwsan.com>2012-10-21 11:01:13 +0400
committerPaul Walmsley <paul@pwsan.com>2012-10-21 11:01:13 +0400
commit2bb2a5d30abb0dc99d074877bfad2056142c730b (patch)
tree6da1f32009cec6777baa0a474f7c2579cc57a6bc /arch/arm/mach-omap2/prm44xx.h
parentb5c5353d417580f7a6ac21a0954f1c500a5cc4f5 (diff)
downloadlinux-2bb2a5d30abb0dc99d074877bfad2056142c730b.tar.xz
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/prm44xx.h')
-rw-r--r--arch/arm/mach-omap2/prm44xx.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h
index ee72ae6bd8c9..c8e1accdc90e 100644
--- a/arch/arm/mach-omap2/prm44xx.h
+++ b/arch/arm/mach-omap2/prm44xx.h
@@ -771,6 +771,8 @@ extern void omap44xx_prm_ocp_barrier(void);
extern void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask);
extern void omap44xx_prm_restore_irqen(u32 *saved_mask);
+extern u32 omap44xx_prm_get_reset_sources(void);
+
# endif
#endif