Thread (15 messages) 15 messages, 3 authors, 2015-12-11
STALE3851d
Revisions (2)
  1. v1 [diff vs current]
  2. resend current

[PATCH resend 3/6] ARM: dts: sun4i: Add DRAM gates

From: Chen-Yu Tsai <hidden>
Date: 2015-12-05 13:17:18
Also in: linux-arm-kernel, linux-clk, lkml
Subsystem: the rest · Maintainer: Linus Torvalds

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 <redacted>
---
 arch/arm/boot/dts/sun4i-a10.dtsi | 36 ++++++++++++++++++++++++++++++++----
 1 file changed, 32 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index aa90f319309b..849d0242ece8 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -66,7 +66,7 @@
 				     "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";
 		};
 
@@ -75,7 +75,8 @@
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_fe0-de_be0-lcd0-hdmi";
 			clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
-				 <&ahb_gates 44>, <&ahb_gates 46>;
+				 <&ahb_gates 44>, <&ahb_gates 46>,
+				 <&dram_gates 25>, <&dram_gates 26>;
 			status = "disabled";
 		};
 
@@ -84,7 +85,8 @@
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_fe0-de_be0-lcd0";
 			clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 44>,
-				 <&ahb_gates 46>;
+				 <&ahb_gates 46>, <&dram_gates 25>,
+				 <&dram_gates 26>;
 			status = "disabled";
 		};
 
@@ -93,7 +95,8 @@
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_fe0-de_be0-lcd0-tve0";
 			clocks = <&pll5 1>, <&ahb_gates 34>, <&ahb_gates 36>,
-				 <&ahb_gates 44>, <&ahb_gates 46>;
+				 <&ahb_gates 44>, <&ahb_gates 46>,
+				 <&dram_gates 25>, <&dram_gates 26>;
 			status = "disabled";
 		};
 	};
@@ -492,6 +495,31 @@
 			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";
-- 
2.6.2
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