ARM: mxs: convert tx28 board to device tree

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@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

3 files changed, 134 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 8595977b5424..e906ec12046c 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@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@0 {
                                         reg = <0>;
                                         fsl,pinmux-ids = <
@@ -243,6 +256,19 @@
                                         fsl,pull-up = <0>;
                                 };
 
+                                auart1_pins_a: auart1@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@0 {
                                         reg = <0>;
                                         fsl,pinmux-ids = <
@@ -407,6 +433,16 @@
                                         fsl,pull-up = <1>;
                                 };
 
+                                pwm0_pins_a: pwm0@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@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 000000000000..62bf767409a6
--- /dev/null
+++ b/arch/arm/boot/dts/tx28.dts
@@ -0,0 +1,97 @@
+/dts-v1/;
+/include/ "imx28.dtsi"
+
+/ {
+        model = "Ka-Ro electronics TX28 module";
+        compatible = "karo,tx28", "fsl,imx28";
+
+        memory {
+                reg = <0x40000000 0x08000000>;
+        };
+
+        apb@80000000 {
+                apbh@80000000 {
+                        ssp0: ssp@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";
+                        };
+
+                        pinctrl@80018000 {
+                                pinctrl-names = "default";
+                                pinctrl-0 = <&hog_pins_a>;
+
+                                hog_pins_a: hog-gpios@0 {
+                                        reg = <0>;
+                                        fsl,pinmux-ids = <
+                                                0x40a3 /* MX28_PAD_ENET0_RXD3__GPIO_4_10 */
+                                        >;
+                                        fsl,drive-strength = <0>;
+                                        fsl,voltage = <1>;
+                                        fsl,pull-up = <0>;
+                                };
+                        };
+                };
+
+                apbx@80040000 {
+                        i2c0: i2c@80058000 {
+                                pinctrl-names = "default";
+                                pinctrl-0 = <&i2c0_pins_a>;
+                                status = "okay";
+
+                                ds1339: rtc@68 {
+                                        compatible = "mxim,ds1339";
+                                        reg = <0x68>;
+                                };
+                        };
+
+                        pwm: pwm@80064000 {
+                                pinctrl-names = "default";
+                                pinctrl-0 = <&pwm0_pins_a>;
+                                status = "okay";
+                        };
+
+                        duart: serial@80074000 {
+                                pinctrl-names = "default";
+                                pinctrl-0 = <&duart_4pins_a>;
+                                status = "okay";
+                        };
+
+                        auart1: serial@8006c000 {
+                                pinctrl-names = "default";
+                                pinctrl-0 = <&auart1_pins_a>;
+                                status = "okay";
+                        };
+                };
+        };
+
+        ahb@80080000 {
+                mac0: ethernet@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 d0bf4149f3e5..a04bec8aa4ce 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -277,6 +277,7 @@ static const char *imx28_dt_compat[] __initdata = {
         "crystalfontz,cfa10036",
         "denx,m28evk",
         "fsl,imx28-evk",
+        "karo,tx28",
         "fsl,imx28",
         NULL,
 };