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imx6: ventana: add ecspi3 host controller for GW52xx

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Certain board revisions of the GW52xx support an SPI host controller with
a single chip-select going to an off board connector.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>

SVN-Revision: 48009
This commit is contained in:
Luka Perkov
2015-12-28 04:55:48 +00:00
parent dee4e713e9
commit f6dfeee3fe
1 changed files with 35 additions and 0 deletions
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35
target/linux/imx6/patches-4.3/041-ARM-dts-imx-ventana-add-spi-support-for-gw52xx.patch Normal file
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@@ -0,0 +1,35 @@
Index: linux-4.3/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
===================================================================
--- linux-4.3.orig/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi 2015-12-18 10:39:44.899158318 -0800
+++ linux-4.3/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi 2015-12-18 10:43:27.000000000 -0800
@@ -158,6 +158,14 @@
<&clks IMX6QDL_CLK_PLL3_USB_OTG>;
};
+&ecspi3 {
+ fsl,spi-num-chipselects = <1>;
+ cs-gpios = <&gpio4 24 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi3>;
+ status = "okay";
+};
+
&fec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
@@ -357,6 +365,15 @@
>;
};
+ pinctrl_ecspi3: escpi3grp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK 0x100b1
+ MX6QDL_PAD_DISP0_DAT1__ECSPI3_MOSI 0x100b1
+ MX6QDL_PAD_DISP0_DAT2__ECSPI3_MISO 0x100b1
+ MX6QDL_PAD_DISP0_DAT3__GPIO4_IO24 0x100b1
+ >;
+ };
+
pinctrl_enet: enetgrp {
fsl,pins = <
MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b0b0