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| author | Soren Brinkmann <soren.brinkmann@xilinx.com> | 2014-09-02 23:19:06 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2014-09-16 12:55:05 +0200 |
| commit | ae88b85e801ba77939b07eb9214f1d6542fa23f7 (patch) | |
| tree | b325f4b494a3d308eccdf3a3bcf509fc54f3c090 /arch/arm/mach-zynq/common.h | |
| parent | Linux 3.17-rc1 (diff) | |
| download | linux-ae88b85e801ba77939b07eb9214f1d6542fa23f7.tar.xz linux-ae88b85e801ba77939b07eb9214f1d6542fa23f7.zip | |
ARM: zynq: PM: Enable A9 internal clock gating feature
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/arm/mach-zynq/common.h')
| -rw-r--r-- | arch/arm/mach-zynq/common.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-zynq/common.h b/arch/arm/mach-zynq/common.h index f652f0a884a6..596ef0b5067c 100644 --- a/arch/arm/mach-zynq/common.h +++ b/arch/arm/mach-zynq/common.h @@ -40,4 +40,15 @@ extern void __iomem *zynq_scu_base; /* Hotplug */ extern void zynq_platform_cpu_die(unsigned int cpu); +static inline void zynq_core_pm_init(void) +{ + /* A9 clock gating */ + asm volatile ("mrc p15, 0, r12, c15, c0, 0\n" + "orr r12, r12, #1\n" + "mcr p15, 0, r12, c15, c0, 0\n" + : /* no outputs */ + : /* no inputs */ + : "r12"); +} + #endif |