r8a7791: PM: add power on SGX in pm init

Turn on power to the GPU by default.

Change-Id: I80e40f172649de3a2d82d4a62801cc23a05b5d42

diff --git a/arch/arm/mach-shmobile/pm-r8a7791.c b/arch/arm/mach-shmobile/pm-r8a7791.c
index 25f107b..05400b1 100644 (file)
--- a/arch/arm/mach-shmobile/pm-r8a7791.c
+++ b/arch/arm/mach-shmobile/pm-r8a7791.c
@@ -70,4 +70,10 @@ void __init r8a7791_pm_init(void)
 
        r8a7791_sysc_init();
        shmobile_smp_apmu_suspend_init();
+
+        /* WORKARROUND: power on 3DG */
+       {
+           void __iomem *base = rcar_sysc_init(0xe6180000);
+           iowrite32(0x01, base + 0xcc); /* 0xCC: PWRONCR2 */
+       }
 }