[PATCH v2 5/7] ARM: mxs: convert tx28 board to device tree

[Shawn Guo]

FEC support is missing because we need to find a proper way to rewrite
tx28_add_fec0 for device tree boot.

Cc: Lothar Waßmann <LW at KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
---
 arch/arm/boot/dts/imx28.dtsi |   36 ++++++++++++++++++
 arch/arm/boot/dts/tx28.dts   |   82 ++++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-mxs/mach-mxs.c |    5 ++-
 3 files changed, 122 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/boot/dts/tx28.dts

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 8595977..e906ec1 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -186,6 +186,19 @@
 					fsl,pull-up = <0>;
 				};
 
+				duart_4pins_a: duart-4pins at 0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						0x3022 /* MX28_PAD_AUART0_CTS__DUART_RX */
+						0x3032 /* MX28_PAD_AUART0_RTS__DUART_TX */
+						0x3002 /* MX28_PAD_AUART0_RX__DUART_CTS */
+						0x3012 /* MX28_PAD_AUART0_TX__DUART_RTS */
+					>;
+					fsl,drive-strength = <0>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <0>;
+				};
+
 				gpmi_pins_a: gpmi-nand at 0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
@@ -243,6 +256,19 @@
 					fsl,pull-up = <0>;
 				};
 
+				auart1_pins_a: auart1 at 0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						0x3040 /* MX28_PAD_AUART1_RX__AUART1_RX */
+						0x3050 /* MX28_PAD_AUART1_TX__AUART1_TX */
+						0x3060 /* MX28_PAD_AUART1_CTS__AUART1_CTS */
+						0x3070 /* MX28_PAD_AUART1_RTS__AUART1_RTS */
+					>;
+					fsl,drive-strength = <0>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <0>;
+				};
+
 				auart1_2pins_a: auart1-2pins at 0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
@@ -407,6 +433,16 @@
 					fsl,pull-up = <1>;
 				};
 
+				pwm0_pins_a: pwm0 at 0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						0x3100 /* MX28_PAD_PWM0__PWM_0 */
+					>;
+					fsl,drive-strength = <0>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <0>;
+				};
+
 				pwm2_pins_a: pwm2 at 0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
diff --git a/arch/arm/boot/dts/tx28.dts b/arch/arm/boot/dts/tx28.dts
new file mode 100644
index 0000000..f64073b
--- /dev/null
+++ b/arch/arm/boot/dts/tx28.dts
@@ -0,0 +1,82 @@
+/dts-v1/;
+/include/ "imx28.dtsi"
+
+/ {
+	model = "Ka-Ro electronics TX28 module";
+	compatible = "karo,tx28", "fsl,imx28";
+
+	memory {
+		reg = <0x40000000 0x08000000>;
+	};
+
+	apb at 80000000 {
+		apbh at 80000000 {
+			ssp0: ssp at 80010000 {
+				compatible = "fsl,imx28-mmc";
+				pinctrl-names = "default";
+				pinctrl-0 = <&mmc0_4bit_pins_a
+					     &mmc0_cd_cfg
+					     &mmc0_sck_cfg>;
+				bus-width = <4>;
+				status = "okay";
+			};
+		};
+
+		apbx at 80040000 {
+			i2c0: i2c at 80058000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&i2c0_pins_a>;
+				status = "okay";
+
+				ds1339: rtc at 68 {
+					compatible = "mxim,ds1339";
+					reg = <0x68>;
+				};
+			};
+
+			pwm: pwm at 80064000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&pwm0_pins_a>;
+				status = "okay";
+			};
+
+			duart: serial at 80074000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&duart_4pins_a>;
+				status = "okay";
+			};
+
+			auart1: serial at 8006c000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&auart1_pins_a>;
+				status = "okay";
+			};
+		};
+	};
+
+	ahb at 80080000 {
+		mac0: ethernet at 800f0000 {
+			phy-mode = "rmii";
+			pinctrl-names = "default";
+			pinctrl-0 = <&mac0_pins_a>;
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		user {
+			label = "Heartbeat";
+			gpios = <&gpio4 10 0>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm 0 5000000>;
+		brightness-levels = <0 4 8 16 32 64 128 255>;
+		default-brightness-level = <6>;
+	};
+};
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index d0bf414..c1e02ae 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -12,8 +12,9 @@
 
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/delay.h>
 #include <linux/err.h>
-#include <linux/init.h>
+#include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/irqdomain.h>
 #include <linux/micrel_phy.h>
@@ -24,6 +25,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <mach/common.h>
+#include <mach/mxs.h>
 
 static struct fb_videomode mx23evk_video_modes[] = {
 	{
@@ -277,6 +279,7 @@ static const char *imx28_dt_compat[] __initdata = {
 	"crystalfontz,cfa10036",
 	"denx,m28evk",
 	"fsl,imx28-evk",
+	"karo,tx28",
 	"fsl,imx28",
 	NULL,
 };
-- 
1.7.5.4