From: Robin Gong <b38343-KZfg59tc24xl57MIdRCFDg@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
Subject: [PATCH v2] ARM: dts: imx6dl: disable dma support for spi on i.mx6dl
Date: Wed, 10 Sep 2014 13:30:12 +0800 [thread overview]
Message-ID: <1410327012-31185-1-git-send-email-b38343@freescale.com> (raw)
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 <b38343-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
---
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
--
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next reply other threads:[~2014-09-10 5:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-10 5:30 Robin Gong [this message]
[not found] ` <1410327012-31185-1-git-send-email-b38343-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2014-09-11 8:02 ` [PATCH v2] ARM: dts: imx6dl: disable dma support for spi on i.mx6dl Shawn Guo
2014-09-15 9:41 ` Lucas Stach
[not found] ` <1410774073.3314.1.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-16 1:43 ` Shawn Guo
2014-09-16 3:41 ` Robin Gong
2014-09-16 9:50 ` Lucas Stach
[not found] ` <1410861006.2746.1.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-17 8:41 ` Robin Gong
2014-09-17 8:55 ` Lucas Stach
[not found] ` <1410944156.2731.1.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-17 9:19 ` Robin Gong
2014-09-17 9:19 ` Lucas Stach
[not found] ` <1410945574.2731.3.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-09-17 9:28 ` Robin Gong
2014-09-15 11:50 ` Alexander Holler
[not found] ` <5416D26A.4080707-SXC+2es9fhnfWeYVQQPykw@public.gmane.org>
2014-09-16 3:52 ` Robin Gong
2014-09-16 9:41 ` Alexander Holler
2014-09-17 8:51 ` Robin Gong
2014-09-17 10:56 ` Alexander Holler
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