imx6: ventana: add ecspi3 host controller for GW52xx

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 <[email protected]> Signed-off-by: Pushpal Sidhu <[email protected]> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48009 3c298f89-4303-0410-b956-a3cf2f4a3e73
ofsahin · Dec 28, 2015 · 5737546 · 5737546
1 parent c55939e
commit 5737546
Showing 1 changed file with 35 additions and 0 deletions.
diff --git a/target/linux/imx6/patches-4.3/041-ARM-dts-imx-ventana-add-spi-support-for-gw52xx.patch b/target/linux/imx6/patches-4.3/041-ARM-dts-imx-ventana-add-spi-support-for-gw52xx.patch
@@ -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