ARM: mxs: Add support for the eukrea-cpuimx28.

The following devices/functionalities were tested:
 * Main UART.
 * Ethernet0.
 * Ethernet1.
 * SD.
 * USB host.
 * USB otg.
 * Display(and its backlight).
 * Touchscreen.
 * Audio.
 * nand.
 * i2c and the pcf8563 device.
 * The gpio buttons.
 * The gpio leds.
 * Watchdog

Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 107069d..c7426e0 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -186,6 +186,8 @@ dtb-$(CONFIG_ARCH_MXS) += imx23-evk.dtb \
        imx28-cfa10057.dtb \
        imx28-cfa10058.dtb \
        imx28-duckbill.dtb \
+       imx28-eukrea-mbmx283lc.dtb \
+       imx28-eukrea-mbmx287lc.dtb \
        imx28-evk.dtb \
        imx28-m28cu3.dtb \
        imx28-m28evk.dtb \

diff --git a/arch/arm/boot/dts/imx28-eukrea-mbmx283lc.dts b/arch/arm/boot/dts/imx28-eukrea-mbmx283lc.dts
new file mode 100644 (file)
index 0000000..7c1572c
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-eukrea-mbmx283lc.dts
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2013 Eukréa Electromatique <eric@eukrea.com>
+ * Copyright 2013 Eukréa Electromatique <denis@eukrea.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Module contains : i.MX282 + 64MB DDR2 + NAND + Ethernet PHY + RTC
+ */
+
+/dts-v1/;
+#include "imx28-eukrea-mbmx28lc.dtsi"
+
+/ {
+       model = "Eukrea Electromatique MBMX283LC";
+       compatible = "eukrea,mbmx283lc", "eukrea,mbmx28lc", "fsl,imx28";
+
+       memory {
+               reg = <0x40000000 0x04000000>;
+       };
+};
+
+&gpmi {
+       pinctrl-names = "default";
+       pinctrl-0 = <&gpmi_pins_a>;
+       status = "okay";
+};
+
+&i2c0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c0_pins_a>;
+       status = "okay";
+
+       pcf8563: rtc@51 {
+               compatible = "nxp,pcf8563";
+               reg = <0x51>;
+       };
+};
+
+
+&mac0 {
+       phy-mode = "rmii";
+       pinctrl-names = "default";
+       pinctrl-0 = <&mac0_pins_a>;
+       phy-reset-gpios = <&gpio4 13 GPIO_ACTIVE_LOW>;
+       status = "okay";
+};
+
+&pinctrl{
+       pinctrl-names = "default";
+       pinctrl-0 = <&hog_pins_cpuimx283>;
+
+       hog_pins_cpuimx283: hog-cpuimx283@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_ENET0_RX_CLK__GPIO_4_13
+                       MX28_PAD_ENET0_TX_CLK__GPIO_4_5
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_ENABLE>;
+       };
+};

diff --git a/arch/arm/boot/dts/imx28-eukrea-mbmx287lc.dts b/arch/arm/boot/dts/imx28-eukrea-mbmx287lc.dts
new file mode 100644 (file)
index 0000000..e773144
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-eukrea-mbmx287lc.dts
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2013 Eukréa Electromatique <eric@eukrea.com>
+ * Copyright 2013 Eukréa Electromatique <denis@eukrea.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Module contains : i.MX287 + 128MB DDR2 + NAND + 2 x Ethernet PHY + RTC
+ */
+
+#include "imx28-eukrea-mbmx283lc.dts"
+
+/ {
+       model = "Eukrea Electromatique MBMX287LC";
+       compatible = "eukrea,mbmx287lc", "eukrea,mbmx283lc", "eukrea,mbmx28lc", "fsl,imx28";
+
+       memory {
+               reg = <0x40000000 0x08000000>;
+       };
+};
+
+&mac1 {
+       phy-mode = "rmii";
+       pinctrl-names = "default";
+       pinctrl-0 = <&mac1_pins_a>;
+       phy-reset-gpios = <&gpio3 27 GPIO_ACTIVE_HIGH>;
+       status = "okay";
+};
+
+&pinctrl {
+       pinctrl-names = "default";
+       pinctrl-0 = <&hog_pins_cpuimx283 &hog_pins_cpuimx287>;
+       hog_pins_cpuimx287: hog-cpuimx287@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_SPDIF__GPIO_3_27
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_ENABLE>;
+       };
+};

diff --git a/arch/arm/boot/dts/imx28-eukrea-mbmx28lc.dtsi b/arch/arm/boot/dts/imx28-eukrea-mbmx28lc.dtsi
new file mode 100644 (file)
index 0000000..927b391
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-eukrea-mbmx28lc.dtsi
@@ -0,0 +1,326 @@
+/*
+ * Copyright 2013 Eukréa Electromatique <eric@eukrea.com>
+ * Copyright 2013 Eukréa Electromatique <denis@eukrea.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "imx28.dtsi"
+
+/ {
+       model = "Eukrea Electromatique MBMX28LC";
+       compatible = "eukrea,mbmx28lc", "fsl,imx28";
+
+       backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm 4 1000000>;
+               brightness-levels = <0 25 50 75 100 125 150 175 200 225 255>;
+               default-brightness-level = <10>;
+       };
+
+       button-sw3 {
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&gpio_button_sw3_pins_mbmx28lc>;
+
+               sw3 {
+                       label = "SW3";
+                       gpios = <&gpio1 21 GPIO_ACTIVE_LOW>;
+                       linux,code = <BTN_MISC>;
+                       gpio-key,wakeup;
+               };
+       };
+
+       button-sw4 {
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&gpio_button_sw4_pins_mbmx28lc>;
+
+               sw4 {
+                       label = "SW4";
+                       gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
+                       linux,code = <BTN_MISC>;
+                       gpio-key,wakeup;
+               };
+       };
+
+       led-d6 {
+               compatible = "gpio-leds";
+               pinctrl-names = "default";
+               pinctrl-0 = <&led_d6_pins_mbmx28lc>;
+
+               led1 {
+                       label = "d6";
+                       gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "heartbeat";
+               };
+       };
+
+       led-d7 {
+               compatible = "gpio-leds";
+               pinctrl-names = "default";
+               pinctrl-0 = <&led_d7_pins_mbmx28lc>;
+
+               led1 {
+                       label = "d7";
+                       gpios = <&gpio1 22 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "default-on";
+               };
+       };
+
+       regulators {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               reg_3p3v: regulator@0 {
+                       compatible = "regulator-fixed";
+                       regulator-name = "3P3V";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       regulator-always-on;
+               };
+
+               reg_lcd_3v3: regulator@1 {
+                       compatible = "regulator-fixed";
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&reg_lcd_3v3_pins_mbmx28lc>;
+                       regulator-name = "lcd-3v3";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       gpio = <&gpio3 30 GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+               };
+
+               reg_usb0_vbus: regulator@2 {
+                       compatible = "regulator-fixed";
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&reg_usb0_vbus_pins_mbmx28lc>;
+                       regulator-name = "usb0_vbus";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       gpio = <&gpio1 18 GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+               };
+
+               reg_usb1_vbus: regulator@3 {
+                       compatible = "regulator-fixed";
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&reg_usb1_vbus_pins_mbmx28lc>;
+                       regulator-name = "usb1_vbus";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       gpio = <&gpio1 19 GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+               };
+       };
+
+       sound {
+               compatible = "fsl,imx28-mbmx28lc-sgtl5000",
+                            "fsl,mxs-audio-sgtl5000";
+               model = "imx28-mbmx28lc-sgtl5000";
+               saif-controllers = <&saif0 &saif1>;
+               audio-codec = <&sgtl5000>;
+       };
+};
+
+&duart {
+       pinctrl-names = "default";
+       pinctrl-0 = <&duart_4pins_a>;
+       status = "okay";
+};
+
+&i2c0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c0_pins_a>;
+       status = "okay";
+
+       sgtl5000: codec@0a {
+               compatible = "fsl,sgtl5000";
+               reg = <0x0a>;
+               VDDA-supply = <&reg_3p3v>;
+               VDDIO-supply = <&reg_3p3v>;
+               clocks = <&saif0>;
+       };
+};
+
+&lcdif {
+       pinctrl-names = "default";
+       pinctrl-0 = <&lcdif_18bit_pins_a &lcdif_pins_mbmx28lc>;
+       lcd-supply = <&reg_lcd_3v3>;
+       display = <&display0>;
+       status = "okay";
+
+       display0: display0 {
+               model = "43WVF1G-0";
+               bits-per-pixel = <16>;
+               bus-width = <18>;
+
+               display-timings {
+                       native-mode = <&timing0>;
+                       timing0: timing0 {
+                               clock-frequency = <9072000>;
+                               hactive = <480>;
+                               vactive = <272>;
+                               hback-porch = <10>;
+                               hfront-porch = <5>;
+                               vback-porch = <8>;
+                               vfront-porch = <8>;
+                               hsync-len = <40>;
+                               vsync-len = <10>;
+                               hsync-active = <0>;
+                               vsync-active = <0>;
+                               de-active = <1>;
+                               pixelclk-active = <1>;
+                       };
+               };
+       };
+};
+
+&lradc {
+       fsl,lradc-touchscreen-wires = <4>;
+       status = "okay";
+};
+
+&pinctrl {
+       gpio_button_sw3_pins_mbmx28lc: gpio-button-sw3-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_D21__GPIO_1_21
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+
+       gpio_button_sw4_pins_mbmx28lc: gpio-button-sw4-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_D20__GPIO_1_20
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+
+       lcdif_pins_mbmx28lc: lcdif-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_VSYNC__LCD_VSYNC
+                       MX28_PAD_LCD_HSYNC__LCD_HSYNC
+                       MX28_PAD_LCD_DOTCLK__LCD_DOTCLK
+                       MX28_PAD_LCD_ENABLE__LCD_ENABLE
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+
+       led_d6_pins_mbmx28lc: led-d6-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_D23__GPIO_1_23
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+
+       led_d7_pins_mbmx28lc: led-d7-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_D22__GPIO_1_22
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+
+       reg_lcd_3v3_pins_mbmx28lc: lcd-3v3-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_RESET__GPIO_3_30
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+
+       reg_usb0_vbus_pins_mbmx28lc: reg-usb0-vbus-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_D18__GPIO_1_18
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+
+       reg_usb1_vbus_pins_mbmx28lc: reg-usb1-vbus-mbmx28lc@0 {
+               reg = <0>;
+               fsl,pinmux-ids = <
+                       MX28_PAD_LCD_D19__GPIO_1_19
+               >;
+               fsl,drive-strength = <MXS_DRIVE_4mA>;
+               fsl,voltage = <MXS_VOLTAGE_HIGH>;
+               fsl,pull-up = <MXS_PULL_DISABLE>;
+       };
+};
+
+&pwm {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pwm4_pins_a>;
+       status = "okay";
+};
+
+&saif0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&saif0_pins_a>;
+       status = "okay";
+};
+
+&saif1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&saif1_pins_a>;
+       fsl,saif-master = <&saif0>;
+       status = "okay";
+};
+
+&ssp0 {
+       compatible = "fsl,imx28-mmc";
+       pinctrl-names = "default";
+       pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_cd_cfg &mmc0_sck_cfg>;
+       bus-width = <4>;
+       cd-inverted;
+       status = "okay";
+};
+
+&usb0 {
+       disable-over-current;
+       vbus-supply = <&reg_usb0_vbus>;
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&usb0_id_pins_b>;
+};
+
+&usb1 {
+       vbus-supply = <&reg_usb1_vbus>;
+       status = "okay";
+};
+
+&usbphy0 {
+       status = "okay";
+};
+
+&usbphy1 {
+       status = "okay";
+};

diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 02b17f7..2e7cec8 100644 (file)
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -448,6 +448,11 @@ static int __init mxs_restart_init(void)
        return 0;
 }
 
+static void __init eukrea_mbmx283lc_init(void)
+{
+       mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
+}
+
 static void __init mxs_machine_init(void)
 {
        struct device_node *root;
@@ -486,6 +491,8 @@ static void __init mxs_machine_init(void)
                apx4devkit_init();
        else if (of_machine_is_compatible("crystalfontz,cfa10036"))
                crystalfontz_init();
+       else if (of_machine_is_compatible("eukrea,mbmx283lc"))
+               eukrea_mbmx283lc_init();
        else if (of_machine_is_compatible("i2se,duckbill"))
                duckbill_init();
        else if (of_machine_is_compatible("msr,m28cu3"))