From: Haibo Chen <haibo.chen@freescale.com>
Date: Mon, 14 Dec 2015 10:23:44 +0000 (+0800)
Subject: MLK-12010 ARM: dts: add emmc support for imx6sx-sdb board
X-Git-Tag: C0P2-H0.0--20200415~3919
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=5bb7f7f2086a18f2ded22f2a568d16fed474b07e;p=linux.git

MLK-12010 ARM: dts: add emmc support for imx6sx-sdb board

Add emmc support for imx6sx-sdb board, due to this support
need remove sd4 sd card slot and solder an eMMC chip, so
this patch add imx6sx-sdb-emmc.dts file.

Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
---

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 47c34627db86..697621f5fa8c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -440,6 +440,7 @@ dtb-$(CONFIG_SOC_IMX6SX) += \
 	imx6sx-sdb-reva-ldo.dtb \
 	imx6sx-sdb.dtb	\
 	imx6sx-sdb-btwifi.dtb \
+	imx6sx-sdb-emmc.dtb \
 	imx6sx-sdb-lcdif1.dtb \
 	imx6sx-sdb-ldo.dtb	\
 	imx6sx-sdb-m4.dtb \
diff --git a/arch/arm/boot/dts/imx6sx-sdb-emmc.dts b/arch/arm/boot/dts/imx6sx-sdb-emmc.dts
new file mode 100644
index 000000000000..6a2a07b0e2ba
--- /dev/null
+++ b/arch/arm/boot/dts/imx6sx-sdb-emmc.dts
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "imx6sx-sdb.dts"
+
+/*
+ * The eMMC chip on imx6sx sdb board is DNP by default.
+ * Need do hw rework to burn the eMMC4.5 chip on the eMMC socket on uSDHC4
+ * and connect eMMC signals as well as disconnect BOOT SD CARD slot signals
+ */
+&usdhc4 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc4_1>;
+	pinctrl-1 = <&pinctrl_usdhc4_1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc4_1_200mhz>;
+	bus-width = <8>;
+	/*
+	 * overwrite cd-gpios and wp-gpios since they are reused as eMMC DATA
+	 * signals after rework
+	 */
+	cd-gpios = <>;
+	wp-gpios = <>;
+	non-removable;
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dtsi b/arch/arm/boot/dts/imx6sx-sdb.dtsi
index f19cf7ba9f86..f6987b2254f9 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dtsi
+++ b/arch/arm/boot/dts/imx6sx-sdb.dtsi
@@ -1008,6 +1008,51 @@
 			>;
 		};
 
+		pinctrl_usdhc4_1: usdhc4grp-1 {
+			fsl,pins = <
+				MX6SX_PAD_SD4_CMD__USDHC4_CMD		0x17059
+				MX6SX_PAD_SD4_CLK__USDHC4_CLK		0x10059
+				MX6SX_PAD_SD4_DATA0__USDHC4_DATA0	0x17059
+				MX6SX_PAD_SD4_DATA1__USDHC4_DATA1	0x17059
+				MX6SX_PAD_SD4_DATA2__USDHC4_DATA2	0x17059
+				MX6SX_PAD_SD4_DATA3__USDHC4_DATA3	0x17059
+				MX6SX_PAD_SD4_DATA4__USDHC4_DATA4	0x17059
+				MX6SX_PAD_SD4_DATA5__USDHC4_DATA5	0x17059
+				MX6SX_PAD_SD4_DATA6__USDHC4_DATA6	0x17059
+				MX6SX_PAD_SD4_DATA7__USDHC4_DATA7	0x17059
+			>;
+		};
+
+		pinctrl_usdhc4_1_100mhz: usdhc4grp-1-100mhz {
+			fsl,pins = <
+				MX6SX_PAD_SD4_CMD__USDHC4_CMD		0x170b9
+				MX6SX_PAD_SD4_CLK__USDHC4_CLK		0x100b9
+				MX6SX_PAD_SD4_DATA0__USDHC4_DATA0	0x170b9
+				MX6SX_PAD_SD4_DATA1__USDHC4_DATA1	0x170b9
+				MX6SX_PAD_SD4_DATA2__USDHC4_DATA2	0x170b9
+				MX6SX_PAD_SD4_DATA3__USDHC4_DATA3	0x170b9
+				MX6SX_PAD_SD4_DATA4__USDHC4_DATA4	0x170b9
+				MX6SX_PAD_SD4_DATA5__USDHC4_DATA5	0x170b9
+				MX6SX_PAD_SD4_DATA6__USDHC4_DATA6	0x170b9
+				MX6SX_PAD_SD4_DATA7__USDHC4_DATA7	0x170b9
+			>;
+		};
+
+		pinctrl_usdhc4_1_200mhz: usdhc4grp-1-200mhz {
+			fsl,pins = <
+				MX6SX_PAD_SD4_CMD__USDHC4_CMD		0x170f9
+				MX6SX_PAD_SD4_CLK__USDHC4_CLK		0x100f9
+				MX6SX_PAD_SD4_DATA0__USDHC4_DATA0	0x170f9
+				MX6SX_PAD_SD4_DATA1__USDHC4_DATA1	0x170f9
+				MX6SX_PAD_SD4_DATA2__USDHC4_DATA2	0x170f9
+				MX6SX_PAD_SD4_DATA3__USDHC4_DATA3	0x170f9
+				MX6SX_PAD_SD4_DATA4__USDHC4_DATA4	0x170f9
+				MX6SX_PAD_SD4_DATA5__USDHC4_DATA5	0x170f9
+				MX6SX_PAD_SD4_DATA6__USDHC4_DATA6	0x170f9
+				MX6SX_PAD_SD4_DATA7__USDHC4_DATA7	0x170f9
+			>;
+		};
+
 		pinctrl_wdog: wdoggrp {
 			fsl,pins = <
 				MX6SX_PAD_GPIO1_IO13__WDOG1_WDOG_ANY 0x30b0