ARM: rockchip: rk3288: pll enter slow mode before reboot

diff --git a/arch/arm/mach-rockchip/rk3288.c b/arch/arm/mach-rockchip/rk3288.c
index 4299020808ec46a73836a360ebe81898f8fd0786..c74793df4cf94011457b8470a7fb41f76683217b 100644 (file)
--- a/arch/arm/mach-rockchip/rk3288.c
+++ b/arch/arm/mach-rockchip/rk3288.c
@@ -426,6 +426,9 @@ static void rk3288_restart(char mode, const char *cmd)
        writel_relaxed(boot_mode, RK_PMU_VIRT + RK3288_PMU_SYS_REG1);   // for linux
        dsb();
 
+       /* pll enter slow mode */
+       writel_relaxed(0xf3030000, RK_CRU_VIRT + RK3288_CRU_MODE_CON);
+       dsb();
        writel_relaxed(0xeca8, RK_CRU_VIRT + RK3288_CRU_GLB_SRST_SND_VALUE);
        dsb();
 }