diff options
| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2012-11-27 23:11:20 -0500 |
|---|---|---|
| committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2013-05-13 19:03:37 -0400 |
| commit | 51d376320af6317f4acf5c779df68f40243ef03c (patch) | |
| tree | b6429fa1875883bc1e54eab23b8285407b0c3fd3 /arch/arm/include | |
| parent | 418e151df738a7a0ddfdeaf0ea389dad7f4a3b70 (diff) | |
ARM: mcpm: add a simple poke mechanism to the early entry code
This allows to poke a predetermined value into a specific address
upon entering the early boot code in bL_head.S.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/mcpm.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h index 0f7b7620e9a..7626a7fd493 100644 --- a/arch/arm/include/asm/mcpm.h +++ b/arch/arm/include/asm/mcpm.h @@ -42,6 +42,14 @@ extern void mcpm_entry_point(void); void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr); /* + * This sets an early poke i.e a value to be poked into some address + * from very early assembly code before the CPU is ungated. The + * address must be physical, and if 0 then nothing will happen. + */ +void mcpm_set_early_poke(unsigned cpu, unsigned cluster, + unsigned long poke_phys_addr, unsigned long poke_val); + +/* * CPU/cluster power operations API for higher subsystems to use. */ |