ARM: dts: gr8: Add support for the GR8 evaluation board

The GR8-EVB is a small board with an NextThing GR8, an Hynix MLC NAND,
an AXP209 PMIC, USB host and OTG, an SPDIF output and a connectors for CSI,
I2S and LCD.

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d5b7d9003bd219d6065af5213360e9af1a80fe66..5b54f992ee28da8f474b650d767e4f145a8bf6bd 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -719,6 +719,7 @@ dtb-$(CONFIG_MACH_SUN4I) += \
        sun4i-a10-pcduino2.dtb \
        sun4i-a10-pov-protab2-ips9.dtb
 dtb-$(CONFIG_MACH_SUN5I) += \
+       ntc-gr8-evb.dtb \
        sun5i-a10s-auxtek-t003.dtb \
        sun5i-a10s-auxtek-t004.dtb \
        sun5i-a10s-mk802.dtb \

diff --git a/arch/arm/boot/dts/ntc-gr8-evb.dts b/arch/arm/boot/dts/ntc-gr8-evb.dts
new file mode 100644 (file)
index 0000000..4b622f3
--- /dev/null
+++ b/arch/arm/boot/dts/ntc-gr8-evb.dts
@@ -0,0 +1,342 @@
+/*
+ * Copyright 2016 Free Electrons
+ * Copyright 2016 NextThing Co
+ *
+ * Mylène Josserand <mylene.josserand@free-electrons.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file 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 file 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.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "ntc-gr8.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+       model = "NextThing GR8-EVB";
+       compatible = "nextthing,gr8-evb", "nextthing,gr8";
+
+       aliases {
+               i2c0 = &i2c0;
+               i2c1 = &i2c1;
+               i2c2 = &i2c2;
+               serial0 = &uart1;
+               serial1 = &uart2;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       backlight: backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm 0 10000 0>;
+               enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>;
+
+               brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
+               default-brightness-level = <8>;
+       };
+};
+
+&be0 {
+       status = "okay";
+};
+
+&codec {
+       status = "okay";
+};
+
+&ehci0 {
+       status = "okay";
+};
+
+&i2c0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c0_pins_a>;
+       status = "okay";
+
+       axp209: pmic@34 {
+               reg = <0x34>;
+
+               /*
+               * The interrupt is routed through the "External Fast
+               * Interrupt Request" pin (ball G13 of the module)
+               * directly to the main interrupt controller, without
+               * any other controller interfering.
+               */
+               interrupts = <0>;
+       };
+};
+
+#include "axp209.dtsi"
+
+&i2c1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c1_pins_a>;
+       status = "okay";
+
+       wm8978: codec@1a {
+               #sound-dai-cells = <0>;
+               compatible = "wlf,wm8978";
+               reg = <0x1a>;
+       };
+
+       pcf8563: rtc@51 {
+               compatible = "phg,pcf8563";
+               reg = <0x51>;
+       };
+};
+
+&i2c2 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c2_pins_a>;
+       status = "okay";
+};
+
+&i2s0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2s0_mclk_pins_a>, <&i2s0_data_pins_a>;
+       status = "okay";
+};
+
+&ir0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&ir0_rx_pins_a>;
+       status = "okay";
+};
+
+&lradc {
+       vref-supply = <&reg_ldo2>;
+       status = "okay";
+
+       button@190 {
+               label = "Volume Up";
+               linux,code = <KEY_VOLUMEUP>;
+               channel = <0>;
+               voltage = <190000>;
+       };
+
+       button@390 {
+               label = "Volume Down";
+               linux,code = <KEY_VOLUMEDOWN>;
+               channel = <0>;
+               voltage = <390000>;
+       };
+
+       button@600 {
+               label = "Menu";
+               linux,code = <KEY_MENU>;
+               channel = <0>;
+               voltage = <600000>;
+       };
+
+       button@800 {
+               label = "Search";
+               linux,code = <KEY_SEARCH>;
+               channel = <0>;
+               voltage = <800000>;
+       };
+
+       button@980 {
+               label = "Home";
+               linux,code = <KEY_HOMEPAGE>;
+               channel = <0>;
+               voltage = <980000>;
+       };
+
+       button@1180 {
+               label = "Esc";
+               linux,code = <KEY_ESC>;
+               channel = <0>;
+               voltage = <1180000>;
+       };
+
+       button@1400 {
+               label = "Enter";
+               linux,code = <KEY_ENTER>;
+               channel = <0>;
+               voltage = <1400000>;
+       };
+};
+
+&mmc0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_gr8_evb>;
+       vmmc-supply = <&reg_vcc3v3>;
+       bus-width = <4>;
+       cd-gpios = <&pio 6 0 GPIO_ACTIVE_HIGH>; /* PG0 */
+       cd-inverted;
+       status = "okay";
+};
+
+&nfc {
+       pinctrl-names = "default";
+       pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
+
+       /* MLC Support sucks for now */
+       status = "disabled";
+};
+
+&ohci0 {
+       status = "okay";
+};
+
+&otg_sram {
+       status = "okay";
+};
+
+&pio {
+       mmc0_cd_pin_gr8_evb: mmc0-cd-pin@0 {
+               allwinner,pins = "PG0";
+               allwinner,function = "gpio_in";
+               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+       };
+
+       usb0_id_pin_gr8_evb: usb0-id-pin@0 {
+               allwinner,pins = "PG2";
+               allwinner,function = "gpio_in";
+               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+       };
+
+       usb0_vbus_det_pin_gr8_evb: usb0-vbus-det-pin@0 {
+               allwinner,pins = "PG1";
+               allwinner,function = "gpio_in";
+               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+       };
+
+       usb1_vbus_pin_gr8_evb: usb1-vbus-pin@0 {
+               allwinner,pins = "PG13";
+               allwinner,function = "gpio_out";
+               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+       };
+};
+
+&pwm {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pwm0_pins_a>;
+       status = "okay";
+};
+
+&reg_dcdc2 {
+       regulator-min-microvolt = <1000000>;
+       regulator-max-microvolt = <1400000>;
+       regulator-name = "vdd-cpu";
+       regulator-always-on;
+};
+
+&reg_dcdc3 {
+       regulator-min-microvolt = <1000000>;
+       regulator-max-microvolt = <1300000>;
+       regulator-name = "vdd-sys";
+       regulator-always-on;
+};
+
+&reg_ldo1 {
+       regulator-name = "vdd-rtc";
+};
+
+&reg_ldo2 {
+       regulator-min-microvolt = <2700000>;
+       regulator-max-microvolt = <3300000>;
+       regulator-name = "avcc";
+       regulator-always-on;
+};
+
+&reg_usb1_vbus {
+       pinctrl-0 = <&usb1_vbus_pin_gr8_evb>;
+       gpio = <&pio 6 13 GPIO_ACTIVE_HIGH>;
+       status = "okay";
+};
+
+&rtp {
+       allwinner,ts-attached;
+};
+
+&spdif {
+       pinctrl-names = "default";
+       pinctrl-0 = <&spdif_tx_pins_a>;
+       status = "okay";
+};
+
+&tve0 {
+       status = "okay";
+};
+
+&uart1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart1_pins_a>, <&uart1_cts_rts_pins_a>;
+       status = "okay";
+};
+
+&usb_otg {
+       /*
+        * The GR8-EVB has a somewhat interesting design. There's a
+        * pin supposed to control VBUS, an ID pin, a VBUS detect pin,
+        * so everything should work just fine.
+        *
+        * Except that the pin supposed to control VBUS is not
+        * connected to any controllable output, neither to the SoC
+        * through a GPIO or to the PMIC, and it is pulled down,
+        * meaning that we will never be able to enable VBUS on this
+        * board.
+        */
+       dr_mode = "otg";
+       status = "okay";
+};
+
+&usb_power_supply {
+       status = "okay";
+};
+
+&usbphy {
+       pinctrl-names = "default";
+       pinctrl-0 = <&usb0_id_pin_gr8_evb>, <&usb0_vbus_det_pin_gr8_evb>;
+       usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
+       usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
+       usb0_vbus_power-supply = <&usb_power_supply>;
+       usb1_vbus-supply = <&reg_usb1_vbus>;
+       status = "okay";
+};