[PATCH] ARM: dts: rockchip: enable dma for uart and mmc on rk3066a

Paweł Jarosz paweljarosz3691 at gmail.com
Sun Nov 13 08:07:06 PST 2016


DMA controller driver is in good shape these days on rockchip platforms.
So lets enable DMA for uart and mmc.

Signed-off-by: Paweł Jarosz <paweljarosz3691 at gmail.com>
---
 arch/arm/boot/dts/rk3066a.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi
index fc8dcc7..2f09cf1 100644
--- a/arch/arm/boot/dts/rk3066a.dtsi
+++ b/arch/arm/boot/dts/rk3066a.dtsi
@@ -637,16 +637,25 @@

 &mmc0 {
        clock-frequency = <50000000>;
+       dmas = <&dmac2 1>;
+       dma-names = "rx-tx";
        max-frequency = <50000000>;
        pinctrl-names = "default";
        pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_cd &sd0_bus4>;
 };

 &mmc1 {
+       dmas = <&dmac2 3>;
+       dma-names = "rx-tx";
        pinctrl-names = "default";
        pinctrl-0 = <&sd1_clk &sd1_cmd &sd1_cd &sd1_bus4>;
 };

+&emmc {
+       dmas = <&dmac2 4>;
+       dma-names = "rx-tx";
+};
+
 &pwm0 {
        pinctrl-names = "default";
        pinctrl-0 = <&pwm0_out>;
@@ -678,21 +687,29 @@
 };

 &uart0 {
+       dmas = <&dmac1_s 0>, <&dmac1_s 1>;
+       dma-names = "tx", "rx";
        pinctrl-names = "default";
        pinctrl-0 = <&uart0_xfer>;
 };

 &uart1 {
+       dmas = <&dmac1_s 2>, <&dmac1_s 3>;
+       dma-names = "tx", "rx";
        pinctrl-names = "default";
        pinctrl-0 = <&uart1_xfer>;
 };

 &uart2 {
+       dmas = <&dmac2 6>, <&dmac2 7>;
+       dma-names = "tx", "rx";
        pinctrl-names = "default";
        pinctrl-0 = <&uart2_xfer>;
 };

 &uart3 {
+       dmas = <&dmac2 8>, <&dmac2 9>;
+       dma-names = "tx", "rx";
        pinctrl-names = "default";
        pinctrl-0 = <&uart3_xfer>;
 };
--
2.7.4



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