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authorJean Pihet <j-pihet@ti.com>2010-12-18 16:44:45 +0100
committerKevin Hilman <khilman@deeprootsystems.com>2010-12-21 14:45:58 -0800
commitf7dfe3d8a98b7c4869c09826e3a65663cb9c71be (patch)
treea308e3f5416dc4a690814e08442805555f52d762 /arch/arm/mach-omap2/control.c
parent1e81bc015a444e0f908451642b0197199d0c6fa4 (diff)
downloadop-kernel-dev-f7dfe3d8a98b7c4869c09826e3a65663cb9c71be.zip
op-kernel-dev-f7dfe3d8a98b7c4869c09826e3a65663cb9c71be.tar.gz
OMAP3: rework of the ASM sleep code execution paths
- Reworked and simplified the execution paths for better readability and to avoid duplication of code, - Added comments on the entry and exit points and the interaction with the ROM code for OFF mode restore, - Reworked the existing comments for better readability. Tested on N900 and Beagleboard with full RET and OFF modes, using cpuidle and suspend. Signed-off-by: Jean Pihet <j-pihet@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2/control.c')
-rw-r--r--arch/arm/mach-omap2/control.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 27ed558..0269bb0 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -239,7 +239,14 @@ void omap3_save_scratchpad_contents(void)
struct omap3_scratchpad_prcm_block prcm_block_contents;
struct omap3_scratchpad_sdrc_block sdrc_block_contents;
- /* Populate the Scratchpad contents */
+ /*
+ * Populate the Scratchpad contents
+ *
+ * The "get_*restore_pointer" functions are used to provide a
+ * physical restore address where the ROM code jumps while waking
+ * up from MPU OFF/OSWR state.
+ * The restore pointer is stored into the scratchpad.
+ */
scratchpad_contents.boot_config_ptr = 0x0;
if (cpu_is_omap3630())
scratchpad_contents.public_restore_ptr =
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