diff options
| -rw-r--r-- | arch/arm/mach-tegra/sleep-t20.S | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/sleep-t20.S b/arch/arm/mach-tegra/sleep-t20.S index e718d3d59646..b129158afeaf 100644 --- a/arch/arm/mach-tegra/sleep-t20.S +++ b/arch/arm/mach-tegra/sleep-t20.S @@ -60,6 +60,8 @@ #define CLK_RESET_RST_CPU_CMPLX_SET 0x340 +#define TEGRA_PL310_VIRT (TEGRA_ARM_PL310_BASE - IO_PPSB_PHYS + IO_PPSB_VIRT) + #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP) /* * tegra20_hotplug_shutdown(void) @@ -247,6 +249,15 @@ ENTRY(tegra2_sleep_wfi) #endif #endif +#ifdef CONFIG_CACHE_L2X0 + /* Issue a PL310 cache sync operation */ + dsb + mov32 r2, TEGRA_PL310_VIRT + 0x730 @ cache sync + add r2, r2, r1 + mov r1, #0 + str r1, [r2] +#endif + pop_ctx_regs r0, r1 @ restore context registers mov pc, lr ENDPROC(tegra2_sleep_wfi) |