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ARM: nomadik: add DMA engine and some channels

Message ID 1460663193-15483-1-git-send-email-linus.walleij@linaro.org
State Accepted
Commit a22d7768860aedcd9c4011075c4d3bc1eaaddd63
Headers show

Commit Message

Linus Walleij April 14, 2016, 7:46 p.m. UTC 
This adds the DMA engine to the Nomadik and assigns the UART
DMA channels. Both slave DMA for UARTs and the memcpy engine
works fine, tested on the Nomadik NHK15.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

---
 arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 38 ++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

-- 
2.4.11


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diff mbox

Patch

diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index e2be53343064..d2d532a9d783 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -748,6 +748,9 @@ 
 			clocks = <&uart0clk>, <&pclkuart0>;
 			clock-names = "uartclk", "apb_pclk";
 			status = "disabled";
+			dmas = <&dmac0 14 1>,
+			       <&dmac0 15 1>;
+			dma-names = "rx", "tx";
 		};
 
 		uart1: uart@101fb000 {
@@ -759,6 +762,9 @@ 
 			clock-names = "uartclk", "apb_pclk";
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart1_default_mux>;
+			dmas = <&dmac1 22 1>,
+			       <&dmac1 23 1>;
+			dma-names = "rx", "tx";
 		};
 
 		uart2: uart@101f2000 {
@@ -769,6 +775,9 @@ 
 			clocks = <&uart2clk>, <&pclkuart2>;
 			clock-names = "uartclk", "apb_pclk";
 			status = "disabled";
+			dmas = <&dmac1 30 1>,
+			       <&dmac1 31 1>;
+			dma-names = "rx", "tx";
 		};
 
 		rng: rng@101b0000 {
@@ -813,5 +822,34 @@ 
 			pinctrl-0 = <&mmcsd_default_mux>, <&mmcsd_default_mode>;
 			vmmc-supply = <&vmmc_regulator>;
 		};
+
+		dmac0: dma-controller@10130000 {
+			compatible = "arm,pl080", "arm,primecell";
+			reg = <0x10130000 0x1000>;
+			interrupt-parent = <&vica>;
+			interrupts = <15>;
+			clocks = <&hclkdma0>;
+			clock-names = "apb_pclk";
+			lli-bus-interface-ahb1;
+			lli-bus-interface-ahb2;
+			mem-bus-interface-ahb2;
+			memcpy-burst-size = <256>;
+			memcpy-bus-width = <32>;
+			#dma-cells = <2>;
+		};
+		dmac1: dma-controller@10150000 {
+			compatible = "arm,pl080", "arm,primecell";
+			reg = <0x10150000 0x1000>;
+			interrupt-parent = <&vica>;
+			interrupts = <13>;
+			clocks = <&hclkdma1>;
+			clock-names = "apb_pclk";
+			lli-bus-interface-ahb1;
+			lli-bus-interface-ahb2;
+			mem-bus-interface-ahb2;
+			memcpy-burst-size = <256>;
+			memcpy-bus-width = <32>;
+			#dma-cells = <2>;
+		};
 	};
 };