Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1455820
| From | Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/2] imx53.dtsi : Add DMA configuration for UART |
| Date | 2016-08-03 16:30 +0200 |
| Message-ID | <s25lf-3EJ-9@gated-at.bofh.it> (permalink) |
| References | <s25lf-3EJ-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
In order to use sdma with UART, we need to add DMA configuration in device tree. Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> --- arch/arm/boot/dts/imx53.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi index cd17037..de545e2 100644 --- a/arch/arm/boot/dts/imx53.dtsi +++ b/arch/arm/boot/dts/imx53.dtsi @@ -217,6 +217,8 @@ clocks = <&clks IMX5_CLK_UART3_IPG_GATE>, <&clks IMX5_CLK_UART3_PER_GATE>; clock-names = "ipg", "per"; + dmas = <&sdma 42 4 0>, <&sdma 43 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; @@ -508,6 +510,8 @@ clocks = <&clks IMX5_CLK_UART2_IPG_GATE>, <&clks IMX5_CLK_UART2_PER_GATE>; clock-names = "ipg", "per"; + dmas = <&sdma 12 4 0>, <&sdma 13 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; @@ -591,6 +595,8 @@ clocks = <&clks IMX5_CLK_UART4_IPG_GATE>, <&clks IMX5_CLK_UART4_PER_GATE>; clock-names = "ipg", "per"; + dmas = <&sdma 2 4 0>, <&sdma 3 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; }; @@ -621,6 +627,8 @@ clocks = <&clks IMX5_CLK_UART5_IPG_GATE>, <&clks IMX5_CLK_UART5_PER_GATE>; clock-names = "ipg", "per"; + dmas = <&sdma 16 4 0>, <&sdma 17 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; -- 2.7.4
Back to linux.kernel | Previous | Next | Find similar | Unroll thread
[PATCH 2/2] imx53.dtsi : Add DMA configuration for UART Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> - 2016-08-03 16:30 +0200
csiph-web