diff options
| author | Yudong Tan <ytan@nvidia.com> | 2011-08-18 15:26:52 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:48:39 -0800 |
| commit | 6d76e260493dc5f8c071f6330f3f6490952125f9 (patch) | |
| tree | 04e8fb9d7742ccdc9e2010119d4e95c4e5b4803a /arch/arm/mach-tegra/asm_macros.h | |
| parent | f93887c0760e4530d3023b7682f2322ea312f3c5 (diff) | |
ARM: tegra: power: implement LP1 suspend/resume for Tegra3
Bug 862502
Change-Id: If70e54fb32ce14d5f13dde1d7fb4c1f1499a6722
Reviewed-on: http://git-master/r/47398
Reviewed-by: Daniel Willemsen <dwillemsen@nvidia.com>
Tested-by: Daniel Willemsen <dwillemsen@nvidia.com>
Rebase-Id: Ra77a54e6930692bca628a97bf1de10a30408cdef
Diffstat (limited to 'arch/arm/mach-tegra/asm_macros.h')
| -rw-r--r-- | arch/arm/mach-tegra/asm_macros.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/asm_macros.h b/arch/arm/mach-tegra/asm_macros.h index 61a7028a6cc0..2463d797ce39 100644 --- a/arch/arm/mach-tegra/asm_macros.h +++ b/arch/arm/mach-tegra/asm_macros.h @@ -19,6 +19,15 @@ #ifdef __ASSEMBLY__ +/* waits until the microsecond counter (base) ticks, for exact timing loops */ +.macro wait_for_us, rd, base, tmp + ldr \rd, [\base] +1001: ldr \tmp, [\base] + cmp \rd, \tmp + beq 1001b + mov \tmp, \rd +.endm + /* waits until the microsecond counter (base) is > rn */ .macro wait_until, rn, base, tmp add \rn, \rn, #1 |