From: 黄涛 <huangtao@rock-chips.com>
Date: Fri, 25 Apr 2014 10:32:15 +0000 (+0800)
Subject: ARM: rockchip: rk3288: pll enter slow mode before reboot
X-Git-Tag: firefly_0821_release~5426
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a61f27e2ba0a4b3c08fa8976a0a3d66da73261ad;p=firefly-linux-kernel-4.4.55.git

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 4299020808ec..c74793df4cf9 100644
--- 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();
 }