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Diffstat (limited to 'arch/arm/mach-tegra/sleep.h')
| -rw-r--r-- | arch/arm/mach-tegra/sleep.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h index e907e406d129..a4edbb3abd3d 100644 --- a/arch/arm/mach-tegra/sleep.h +++ b/arch/arm/mach-tegra/sleep.h @@ -46,6 +46,14 @@ #define TEGRA_FLUSH_CACHE_ALL 1 #ifdef __ASSEMBLY__ +/* waits until the microsecond counter (base) is > rn */ +.macro wait_until, rn, base, tmp + add \rn, \rn, #1 +1001: ldr \tmp, [\base] + cmp \tmp, \rn + bmi 1001b +.endm + /* returns the offset of the flow controller halt register for a cpu */ .macro cpu_to_halt_reg rd, rcpu cmp \rcpu, #0 |