From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robin Gong Subject: [PATCH v2] ARM: dts: imx6dl: disable dma support for spi on i.mx6dl Date: Wed, 10 Sep 2014 13:30:12 +0800 Message-ID: <1410327012-31185-1-git-send-email-b38343@freescale.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: shawn.guo-KZfg59tc24xl57MIdRCFDg@public.gmane.org, kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.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@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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html