From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 13/13] ARM: dts: imx6: Use correct SDMA script for SPI cores
Date: Wed, 17 Feb 2016 14:28:59 +0100 [thread overview]
Message-ID: <1455715739-25161-14-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1455715739-25161-1-git-send-email-s.hauer@pengutronix.de>
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 <s.hauer@pengutronix.de>
---
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";
};
--
2.7.0
next prev parent reply other threads:[~2016-02-17 13:28 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-17 13:28 [PATCH] i.MX SPI DMA cleanup Sascha Hauer
2016-02-17 13:28 ` [PATCH 01/13] spi: imx: allow only WML aligned transfers to use DMA Sascha Hauer
2016-02-17 14:16 ` Mark Brown
2016-02-17 15:01 ` Sascha Hauer
2016-02-17 16:05 ` Mark Brown
2016-02-17 13:28 ` [PATCH 02/13] spi: imx: use proper dev_* functions for driver messages Sascha Hauer
2016-02-17 13:28 ` [PATCH 03/13] spi: imx: replace fixed timeout with calculated Sascha Hauer
2016-02-17 14:22 ` Mark Brown
2016-02-17 13:28 ` [PATCH 04/13] spi: imx: drop fallback to PIO Sascha Hauer
2016-02-17 13:28 ` [PATCH 05/13] spi: imx: initialize usedma earlier Sascha Hauer
2016-02-17 13:28 ` [PATCH 06/13] spi: imx: drop unnecessary read/modify/write Sascha Hauer
2016-02-17 13:28 ` [PATCH 07/13] spi: imx: drop unncessary dma_is_inited variable Sascha Hauer
2016-02-17 13:28 ` [PATCH 08/13] spi: imx: add support for all SPI word width for DMA Sascha Hauer
2016-02-17 13:28 ` [PATCH 09/13] spi: imx: remove unnecessary bit clearing in mx51_ecspi_config Sascha Hauer
2016-02-17 13:28 ` [PATCH 10/13] spi: imx: make some register defines simpler Sascha Hauer
2016-02-17 13:28 ` [PATCH 11/13] spi: imx: set MX51_ECSPI_CTRL_SMC bit in setup function Sascha Hauer
2016-02-17 13:28 ` [PATCH 12/13] spi: imx: drop bogus tests for rx/tx bufs in DMA transfer Sascha Hauer
2016-02-17 13:28 ` Sascha Hauer [this message]
2016-02-17 13:42 ` [PATCH] i.MX SPI DMA cleanup Dirk Behme
2016-02-17 13:54 ` Sascha Hauer
2016-02-17 14:10 ` Dirk Behme
2016-02-17 14:59 ` Sascha Hauer
2016-02-17 15:33 ` Dirk Behme
2016-02-17 15:40 ` Fabio Estevam
2016-02-18 14:47 ` Shawn Guo
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