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ARM: dts: Add Gemini DMA controller

Message ID 20170530080857.13806-1-linus.walleij@linaro.org (mailing list archive)
State Not Applicable
Headers show

Commit Message

Linus Walleij May 30, 2017, 8:08 a.m. UTC 
This adds the Faraday Technology FTDMAC020 DMA controller to
the Gemini SoC DTSI file. It is only used for memcpy work so
we can activate it for all users of the chipset.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
The driver has been merged to the DMA tree. The clock and reset
lines are added with numerical values as we do not want to
depend on <dt-bindings/*> headers in the merge window. Will
be fixed post-rc1.
---
 arch/arm/boot/dts/gemini.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/gemini.dtsi b/arch/arm/boot/dts/gemini.dtsi
index 80abf84f8a80..0beaa4ef757e 100644
--- a/arch/arm/boot/dts/gemini.dtsi
+++ b/arch/arm/boot/dts/gemini.dtsi
@@ -175,5 +175,22 @@ 
 				#interrupt-cells = <1>;
 			};
 		};
+
+		dma-controller@67000000 {
+			compatible = "faraday,ftdma020", "arm,pl080", "arm,primecell";
+			/* Faraday Technology FTDMAC020 variant */
+			arm,primecell-periphid = <0x0003b080>;
+			reg = <0x67000000 0x1000>;
+			interrupts = <9 IRQ_TYPE_EDGE_RISING>;
+			resets = <&syscon 10>;
+			clocks = <&syscon 1>;
+			clock-names = "apb_pclk";
+			/* Bus interface AHB1 (AHB0) is totally tilted */
+			lli-bus-interface-ahb2;
+			mem-bus-interface-ahb2;
+			memcpy-burst-size = <256>;
+			memcpy-bus-width = <32>;
+			#dma-cells = <2>;
+		};
 	};
 };