From 5c3fe8fe007c2cdfc4c0ebfc905af8a2ffda5677 Mon Sep 17 00:00:00 2001 From: Alex Frid Date: Wed, 6 Jun 2012 23:51:28 -0700 Subject: ARM: tegra: clock: Add fence read in emc clock change Added fence read in Tegra3 emc clock change procedure. Change-Id: I2162affb4dddcacf38057e07ff6fbd5964643188 Signed-off-by: Alex Frid Reviewed-on: http://git-master/r/106956 Reviewed-by: Rohan Somvanshi Tested-by: Rohan Somvanshi --- arch/arm/mach-tegra/tegra3_emc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-tegra/tegra3_emc.c b/arch/arm/mach-tegra/tegra3_emc.c index 363519ca3aaa..a70f6aca8c3f 100644 --- a/arch/arm/mach-tegra/tegra3_emc.c +++ b/arch/arm/mach-tegra/tegra3_emc.c @@ -497,6 +497,7 @@ static inline void do_clock_change(u32 clk_setting) mc_readl(MC_EMEM_ADR_CFG); /* completes prev writes */ writel(clk_setting, (u32)clk_base + emc->reg); + readl((u32)clk_base + emc->reg);/* completes prev write */ err = wait_for_update(EMC_INTSTATUS, EMC_INTSTATUS_CLKCHANGE_COMPLETE, true); -- cgit v1.2.3