ARM: dts: imx28-duckbill: update to match vendor distributed DT

This patch updates the Duckbill device tree and synchronize it with
the vendor distributed file. The changes in mostly pin-muxing stuff,
but also some minor fixes. In detail:
- enable SPI pins
- enable I2C pins
- enable UART pins
- enable LRADC pin
- adjust USB DR mode
- add default triggers for LEDs
- get rid of regulators simple-bus container
- adjust phy reset duration
  According to phy datasheet, 25ms are sufficient. This also reduces
  the time to boot the system.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx28-duckbill.dts b/arch/arm/boot/dts/imx28-duckbill.dts
index ce1a7effba3770ce8708cfb44ecae6e781d6a79f..3e4385d4ed78dee6e0259ea0749dfe04ab535995 100644 (file)
--- a/arch/arm/boot/dts/imx28-duckbill.dts
+++ b/arch/arm/boot/dts/imx28-duckbill.dts
@@ -1,5 +1,6 @@
 /*
- * Copyright (C) 2013 Michael Heimpold <mhei@heimpold.de>
+ * Copyright (C) 2013-2014,2016 Michael Heimpold <mhei@heimpold.de>
+ * Copyright (C) 2015-2017 I2SE GmbH <info@i2se.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
@@ -10,6 +11,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
 #include "imx28.dtsi"
 
 / {
@@ -32,6 +34,13 @@
                                status = "okay";
                        };
 
+                       ssp2: ssp@80014000 {
+                               compatible = "fsl,imx28-spi";
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&spi2_pins_a>;
+                               status = "okay";
+                       };
+
                        pinctrl@80018000 {
                                pinctrl-names = "default";
                                pinctrl-0 = <&hog_pins_a>;
@@ -39,14 +48,24 @@
                                hog_pins_a: hog@0 {
                                        reg = <0>;
                                        fsl,pinmux-ids = <
-                                               MX28_PAD_SSP0_DATA7__GPIO_2_7 /* PHY Reset */
+                                               MX28_PAD_LCD_D17__GPIO_1_17    /* Revision detection */
+                                       >;
+                                       fsl,drive-strength = <MXS_DRIVE_4mA>;
+                                       fsl,voltage = <MXS_VOLTAGE_HIGH>;
+                                       fsl,pull-up = <MXS_PULL_DISABLE>;
+                               };
+
+                               mac0_phy_reset_pin: mac0-phy-reset@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               MX28_PAD_SSP0_DATA7__GPIO_2_7    /* PHY Reset */
                                        >;
                                        fsl,drive-strength = <MXS_DRIVE_4mA>;
                                        fsl,voltage = <MXS_VOLTAGE_HIGH>;
                                        fsl,pull-up = <MXS_PULL_DISABLE>;
                                };
 
-                               led_pins_a: led_gpio@0 {
+                               led_pins: leds@0 {
                                        reg = <0>;
                                        fsl,pinmux-ids = <
                                                MX28_PAD_AUART1_RX__GPIO_3_4
@@ -60,6 +79,22 @@
                };
 
                apbx@80040000 {
+                       lradc@80050000 {
+                               status = "okay";
+                       };
+
+                       i2c0: i2c@80058000 {
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&i2c0_pins_a>;
+                               status = "okay";
+                       };
+
+                       auart0: serial@8006a000 {
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&auart0_2pins_a>;
+                               status = "okay";
+                       };
+
                        duart: serial@80074000 {
                                pinctrl-names = "default";
                                pinctrl-0 = <&duart_pins_a>;
@@ -75,47 +110,43 @@
        ahb@80080000 {
                usb0: usb@80080000 {
                        status = "okay";
+                       dr_mode = "peripheral";
                };
 
                mac0: ethernet@800f0000 {
                        phy-mode = "rmii";
                        pinctrl-names = "default";
-                       pinctrl-0 = <&mac0_pins_a>;
+                       pinctrl-0 = <&mac0_pins_a>, <&mac0_phy_reset_pin>;
                        phy-supply = <&reg_3p3v>;
                        phy-reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
-                       phy-reset-duration = <100>;
+                       phy-reset-duration = <25>;
                        status = "okay";
                };
        };
 
-       regulators {
-               compatible = "simple-bus";
-               #address-cells = <1>;
-               #size-cells = <0>;
-
-               reg_3p3v: regulator@0 {
-                       compatible = "regulator-fixed";
-                       reg = <0>;
-                       regulator-name = "3P3V";
-                       regulator-min-microvolt = <3300000>;
-                       regulator-max-microvolt = <3300000>;
-                       regulator-always-on;
-               };
+       reg_3p3v: regulator-3p3v {
+               compatible = "regulator-fixed";
+               regulator-name = "3P3V";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
        };
 
        leds {
                compatible = "gpio-leds";
                pinctrl-names = "default";
-               pinctrl-0 = <&led_pins_a>;
+               pinctrl-0 = <&led_pins>;
 
-               status {
-                       label = "duckbill:green:status";
-                       gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;
-               };
-
-               failure {
+               status-red {
                        label = "duckbill:red:status";
                        gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "default-on";
+               };
+
+               status-green {
+                       label = "duckbill:green:status";
+                       gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "heartbeat";
                };
        };
 };