diff options
Diffstat (limited to 'target/linux/sunxi/patches-4.4/102-dt-sun7i-add-dram-gates.patch')
| -rw-r--r-- | target/linux/sunxi/patches-4.4/102-dt-sun7i-add-dram-gates.patch | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/target/linux/sunxi/patches-4.4/102-dt-sun7i-add-dram-gates.patch b/target/linux/sunxi/patches-4.4/102-dt-sun7i-add-dram-gates.patch new file mode 100644 index 0000000000..981ef5ba78 --- /dev/null +++ b/target/linux/sunxi/patches-4.4/102-dt-sun7i-add-dram-gates.patch @@ -0,0 +1,79 @@ +From 0b4bf5a5200b9ac5ddf545665f171feb5594677d Mon Sep 17 00:00:00 2001 +From: Chen-Yu Tsai <wens@csie.org> +Date: Sat, 5 Dec 2015 21:16:46 +0800 +Subject: [PATCH] ARM: dts: sun7i: Add DRAM gates + +The DRAM gates controls direct memory access for some peripherals. +These peripherals include the display pipeline, so add the required +gates to the simplefb nodes as well. + +Signed-off-by: Chen-Yu Tsai <wens@csie.org> +Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> +--- + arch/arm/boot/dts/sun7i-a20.dtsi | 32 +++++++++++++++++++++++++++++--- + 1 file changed, 29 insertions(+), 3 deletions(-) + +diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi +index e02eb72..21169c0 100644 +--- a/arch/arm/boot/dts/sun7i-a20.dtsi ++++ b/arch/arm/boot/dts/sun7i-a20.dtsi +@@ -68,7 +68,7 @@ + "simple-framebuffer"; + allwinner,pipeline = "de_be0-lcd0-hdmi"; + clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>, +- <&ahb_gates 44>; ++ <&ahb_gates 44>, <&dram_gates 26>; + status = "disabled"; + }; + +@@ -76,7 +76,8 @@ + compatible = "allwinner,simple-framebuffer", + "simple-framebuffer"; + allwinner,pipeline = "de_be0-lcd0"; +- clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 44>; ++ clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 44>, ++ <&dram_gates 26>; + status = "disabled"; + }; + +@@ -85,7 +86,7 @@ + "simple-framebuffer"; + allwinner,pipeline = "de_be0-lcd0-tve0"; + clocks = <&pll5 1>, <&ahb_gates 34>, <&ahb_gates 36>, +- <&ahb_gates 44>; ++ <&ahb_gates 44>, <&dram_gates 26>; + status = "disabled"; + }; + }; +@@ -501,6 +502,31 @@ + clock-output-names = "spi3"; + }; + ++ dram_gates: clk@01c20100 { ++ #clock-cells = <1>; ++ compatible = "allwinner,sun4i-a10-dram-gates-clk"; ++ reg = <0x01c20100 0x4>; ++ clocks = <&pll5 0>; ++ clock-indices = <0>, ++ <1>, <2>, ++ <3>, ++ <4>, ++ <5>, <6>, ++ <15>, ++ <24>, <25>, ++ <26>, <27>, ++ <28>, <29>; ++ clock-output-names = "dram_ve", ++ "dram_csi0", "dram_csi1", ++ "dram_ts", ++ "dram_tvd", ++ "dram_tve0", "dram_tve1", ++ "dram_output", ++ "dram_de_fe1", "dram_de_fe0", ++ "dram_de_be0", "dram_de_be1", ++ "dram_de_mp", "dram_ace"; ++ }; ++ + codec_clk: clk@01c20140 { + #clock-cells = <0>; + compatible = "allwinner,sun4i-a10-codec-clk"; |