[PATCH v3 5/7] ARM: sun6i: Protect SDRAM gating bit
From: Maxime Ripard <hidden>
Date: 2014-03-04 16:20:44
Also in:
linux-devicetree, lkml
Subsystem:
arm port, arm/allwinner sunxi soc support, the rest · Maintainers:
Russell King, Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Linus Torvalds
Prevent the SDRAM controller from being gated by force-enabling it in the machine code. Signed-off-by: Maxime Ripard <redacted> --- arch/arm/mach-sunxi/sun6i.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/arm/mach-sunxi/sun6i.c b/arch/arm/mach-sunxi/sun6i.c
index 6b39055..1ccb275 100644
--- a/arch/arm/mach-sunxi/sun6i.c
+++ b/arch/arm/mach-sunxi/sun6i.c@@ -34,6 +34,11 @@ static void __init sun6i_dt_init(void) clk = clk_get(NULL, "cpu"); if (!IS_ERR(clk)) clk_prepare_enable(clk); + + /* DDR gating clock */ + clk = clk_get(NULL, "ahb1_sdram"); + if (!IS_ERR(clk)) + clk_prepare_enable(clk); } extern void __init sun6i_reset_init(void);
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1.9.0