ARM: dts: add support for I2SE Duckbill 2 SPI

This machine is based on I2SE's Duckbill 2 board and is sold as part
of I2SE's PLC Bundle for IoT. This is a development kit for Homeplug
Green PHY based powerline products based on Qualcomms QCA7000 chip.

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/Makefile b/arch/arm/boot/dts/Makefile
index 8b8aa51..ccecd79 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -491,6 +491,7 @@ dtb-$(CONFIG_ARCH_MXS) += \
        imx28-duckbill-2-485.dtb \
        imx28-duckbill-2.dtb \
        imx28-duckbill-2-enocean.dtb \
+       imx28-duckbill-2-spi.dtb \
        imx28-duckbill.dtb \
        imx28-eukrea-mbmx283lc.dtb \
        imx28-eukrea-mbmx287lc.dtb \

diff --git a/arch/arm/boot/dts/imx28-duckbill-2-spi.dts b/arch/arm/boot/dts/imx28-duckbill-2-spi.dts
new file mode 100644 (file)
index 0000000..927732e
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-duckbill-2-spi.dts
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2015-2017 I2SE GmbH <info@i2se.com>
+ * Copyright (C) 2016 Michael Heimpold <mhei@heimpold.de>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "imx28.dtsi"
+
+/ {
+       model = "I2SE Duckbill 2 SPI";
+       compatible = "i2se,duckbill-2-spi", "i2se,duckbill-2", "fsl,imx28";
+
+       aliases {
+               ethernet1 = &qca7000;
+       };
+
+       memory {
+               reg = <0x40000000 0x08000000>;
+       };
+
+       apb@80000000 {
+               apbh@80000000 {
+                       ssp0: ssp@80010000 {
+                               compatible = "fsl,imx28-mmc";
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&mmc0_8bit_pins_a
+                                       &mmc0_cd_cfg &mmc0_sck_cfg>;
+                               bus-width = <8>;
+                               vmmc-supply = <&reg_3p3v>;
+                               status = "okay";
+                               non-removable;
+                       };
+
+                       ssp2: ssp@80014000 {
+                               compatible = "fsl,imx28-spi";
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&spi2_pins_a>;
+                               status = "okay";
+
+                               qca7000: ethernet@0 {
+                                       reg = <0>;
+                                       compatible = "qca,qca7000";
+                                       pinctrl-names = "default";
+                                       pinctrl-0 = <&qca7000_pins>;
+                                       interrupt-parent = <&gpio3>;
+                                       interrupts = <3 IRQ_TYPE_EDGE_RISING>;
+                                       spi-cpha;
+                                       spi-cpol;
+                                       spi-max-frequency = <8000000>;
+                               };
+                       };
+
+                       pinctrl@80018000 {
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&hog_pins_a>;
+
+                               hog_pins_a: hog@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               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_GPMI_ALE__GPIO_0_26    /* PHY Reset */
+                                       >;
+                                       fsl,drive-strength = <MXS_DRIVE_4mA>;
+                                       fsl,voltage = <MXS_VOLTAGE_HIGH>;
+                                       fsl,pull-up = <MXS_PULL_DISABLE>;
+                               };
+
+                               mac0_phy_int_pin: mac0-phy-int@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               MX28_PAD_GPMI_D07__GPIO_0_7    /* PHY Interrupt */
+                                       >;
+                                       fsl,drive-strength = <MXS_DRIVE_4mA>;
+                                       fsl,voltage = <MXS_VOLTAGE_HIGH>;
+                                       fsl,pull-up = <MXS_PULL_DISABLE>;
+                               };
+
+                               led_pins: led@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               MX28_PAD_SAIF0_MCLK__GPIO_3_20
+                                               MX28_PAD_SAIF0_LRCLK__GPIO_3_21
+                                       >;
+                                       fsl,drive-strength = <MXS_DRIVE_4mA>;
+                                       fsl,voltage = <MXS_VOLTAGE_HIGH>;
+                                       fsl,pull-up = <MXS_PULL_DISABLE>;
+                               };
+
+                               qca7000_pins: qca7000@0 {
+                                       reg = <0>;
+                                       fsl,pinmux-ids = <
+                                               MX28_PAD_AUART0_RTS__GPIO_3_3    /* Interrupt */
+                                               MX28_PAD_LCD_D13__GPIO_1_13      /* QCA7K reset */
+                                               MX28_PAD_LCD_D14__GPIO_1_14      /* GPIO 0 */
+                                               MX28_PAD_LCD_D15__GPIO_1_15      /* GPIO 1 */
+                                               MX28_PAD_LCD_D18__GPIO_1_18      /* GPIO 2 */
+                                               MX28_PAD_LCD_D21__GPIO_1_21      /* GPIO 3 */
+                                       >;
+                                       fsl,drive-strength = <MXS_DRIVE_4mA>;
+                                       fsl,voltage = <MXS_VOLTAGE_HIGH>;
+                                       fsl,pull-up = <MXS_PULL_DISABLE>;
+                               };
+                       };
+               };
+
+               apbx@80040000 {
+                       lradc@80050000 {
+                               status = "okay";
+                       };
+
+                       duart: serial@80074000 {
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&duart_pins_a>;
+                               status = "okay";
+                       };
+
+                       usbphy0: usbphy@8007c000 {
+                               status = "okay";
+                       };
+               };
+       };
+
+       ahb@80080000 {
+               usb0: usb@80080000 {
+                       status = "okay";
+                       dr_mode = "peripheral";
+               };
+
+               mac0: ethernet@800f0000 {
+                       phy-mode = "rmii";
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&mac0_pins_a>, <&mac0_phy_reset_pin>;
+                       phy-supply = <&reg_3p3v>;
+                       phy-reset-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
+                       phy-reset-duration = <25>;
+                       phy-handle = <&ethphy>;
+                       status = "okay";
+
+                       mdio {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+
+                               ethphy: ethernet-phy@0 {
+                                       compatible = "ethernet-phy-ieee802.3-c22";
+                                       reg = <0>;
+                                       pinctrl-names = "default";
+                                       pinctrl-0 = <&mac0_phy_int_pin>;
+                                       interrupt-parent = <&gpio0>;
+                                       interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+                                       max-speed = <100>;
+                               };
+                       };
+               };
+       };
+
+       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>;
+
+               status-red {
+                       label = "duckbill:red:status";
+                       gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "default-on";
+               };
+
+               status-green {
+                       label = "duckbill:green:status";
+                       gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "heartbeat";
+               };
+       };
+};