From mboxrd@z Thu Jan 1 00:00:00 1970 From: b38343@freescale.com (Robin Gong) Date: Wed, 10 Sep 2014 13:30:12 +0800 Subject: [PATCH v2] ARM: dts: imx6dl: disable dma support for spi on i.mx6dl Message-ID: <1410327012-31185-1-git-send-email-b38343@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org There is one weird data in rxfifo after one full rx/tx transfer done sometimes. It looks a design issue and hard to workaround totally, so disable dma functhion here. And will re-enable it once the root cause found. Signed-off-by: Robin Gong --- arch/arm/boot/dts/imx6q.dtsi | 20 ++++++++++++++++++++ arch/arm/boot/dts/imx6qdl.dtsi | 8 -------- 2 files changed, 20 insertions(+), 8 deletions(-) diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index e9f3646..8d5d33b 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -291,6 +291,26 @@ }; }; +&ecspi1 { + dmas = <&sdma 3 7 1>, <&sdma 4 7 2>; + dma-names = "rx", "tx"; +}; + +&ecspi2 { + dmas = <&sdma 5 7 1>, <&sdma 6 7 2>; + dma-names = "rx", "tx"; +}; + +&ecspi3 { + dmas = <&sdma 7 7 1>, <&sdma 8 7 2>; + dma-names = "rx", "tx"; +}; + +&ecspi4 { + dmas = <&sdma 9 7 1>, <&sdma 10 7 2>; + dma-names = "rx", "tx"; +}; + &mipi_dsi { port at 2 { reg = <2>; diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index 70d7207..f696546 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -210,8 +210,6 @@ clocks = <&clks IMX6QDL_CLK_ECSPI1>, <&clks IMX6QDL_CLK_ECSPI1>; clock-names = "ipg", "per"; - dmas = <&sdma 3 7 1>, <&sdma 4 7 2>; - dma-names = "rx", "tx"; status = "disabled"; }; @@ -224,8 +222,6 @@ clocks = <&clks IMX6QDL_CLK_ECSPI2>, <&clks IMX6QDL_CLK_ECSPI2>; clock-names = "ipg", "per"; - dmas = <&sdma 5 7 1>, <&sdma 6 7 2>; - dma-names = "rx", "tx"; status = "disabled"; }; @@ -238,8 +234,6 @@ clocks = <&clks IMX6QDL_CLK_ECSPI3>, <&clks IMX6QDL_CLK_ECSPI3>; clock-names = "ipg", "per"; - dmas = <&sdma 7 7 1>, <&sdma 8 7 2>; - dma-names = "rx", "tx"; status = "disabled"; }; @@ -252,8 +246,6 @@ clocks = <&clks IMX6QDL_CLK_ECSPI4>, <&clks IMX6QDL_CLK_ECSPI4>; clock-names = "ipg", "per"; - dmas = <&sdma 9 7 1>, <&sdma 10 7 2>; - dma-names = "rx", "tx"; status = "disabled"; }; -- 1.9.1