From dd4b487b32a3571fdcc66062e661e3a3e360e35b Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 17 Feb 2016 14:28:59 +0100 Subject: [PATCH] ARM: dts: imx6: Use correct SDMA script for SPI cores According to the reference manual the shp_2_mcu / mcu_2_shp scripts must be used for devices connected through the SPBA. This fixes an issue we saw with DMA transfers from SPI NOR Flashes. Sometimes the SPI controller RX FIFO was not empty after a DMA transfer and the driver got stuck in the next PIO transfer when it read one word more than expected. Signed-off-by: Sascha Hauer Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx6qdl.dtsi | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index 4f6ae92..06d2c4e 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -261,7 +261,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI1>, <&clks IMX6QDL_CLK_ECSPI1>; clock-names = "ipg", "per"; - dmas = <&sdma 3 7 1>, <&sdma 4 7 2>; + dmas = <&sdma 3 8 1>, <&sdma 4 8 2>; dma-names = "rx", "tx"; status = "disabled"; }; @@ -275,7 +275,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI2>, <&clks IMX6QDL_CLK_ECSPI2>; clock-names = "ipg", "per"; - dmas = <&sdma 5 7 1>, <&sdma 6 7 2>; + dmas = <&sdma 5 8 1>, <&sdma 6 8 2>; dma-names = "rx", "tx"; status = "disabled"; }; @@ -289,7 +289,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI3>, <&clks IMX6QDL_CLK_ECSPI3>; clock-names = "ipg", "per"; - dmas = <&sdma 7 7 1>, <&sdma 8 7 2>; + dmas = <&sdma 7 8 1>, <&sdma 8 8 2>; dma-names = "rx", "tx"; status = "disabled"; }; @@ -303,7 +303,7 @@ clocks = <&clks IMX6QDL_CLK_ECSPI4>, <&clks IMX6QDL_CLK_ECSPI4>; clock-names = "ipg", "per"; - dmas = <&sdma 9 7 1>, <&sdma 10 7 2>; + dmas = <&sdma 9 8 1>, <&sdma 10 8 2>; dma-names = "rx", "tx"; status = "disabled"; }; -- 2.7.4