ARM: gr8: Add CHIP Pro support

The CHIP Pro is a small embeddable board. It features a GR8, an AXP209
PMIC, a 512MB SLC NAND and a WiFi/BT chip.

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 c558ba75cbccf909063e0f4f131f7efdfd28867b..8b4dc8123a667a56f56b619664dd369952ee7f27 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -760,6 +760,7 @@ dtb-$(CONFIG_MACH_SUN5I) += \
        sun5i-a13-olinuxino-micro.dtb \
        sun5i-a13-q8-tablet.dtb \
        sun5i-a13-utoo-p66.dtb \
+       sun5i-gr8-chip-pro.dtb \
        sun5i-gr8-evb.dtb \
        sun5i-r8-chip.dtb
 dtb-$(CONFIG_MACH_SUN6I) += \

diff --git a/arch/arm/boot/dts/sun5i-gr8-chip-pro.dts b/arch/arm/boot/dts/sun5i-gr8-chip-pro.dts
new file mode 100644 (file)
index 0000000..92a2dc6
--- /dev/null
+++ b/arch/arm/boot/dts/sun5i-gr8-chip-pro.dts
@@ -0,0 +1,266 @@
+/*
+ * Copyright 2016 Free Electrons
+ * Copyright 2016 NextThing Co
+ *
+ * Maxime Ripard <maxime.ripard@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 "sun5i-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 C.H.I.P. Pro";
+       compatible = "nextthing,chip-pro", "nextthing,gr8";
+
+       aliases {
+               i2c0 = &i2c0;
+               i2c1 = &i2c1;
+               serial0 = &uart1;
+               serial1 = &uart2;
+               serial2 = &uart3;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               status {
+                       label = "chip-pro:white:status";
+                       gpios = <&axp_gpio 2 GPIO_ACTIVE_HIGH>;
+                       default-state = "on";
+               };
+       };
+
+       mmc0_pwrseq: mmc0_pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               pinctrl-names = "default";
+               pinctrl-0 = <&wifi_reg_on_pin_chip_pro>;
+               reset-gpios = <&pio 1 10 GPIO_ACTIVE_LOW>; /* PB10 */
+       };
+};
+
+&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 = "disabled";
+};
+
+&i2s0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2s0_mclk_pins_a>, <&i2s0_data_pins_a>;
+       status = "disabled";
+};
+
+&mmc0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mmc0_pins_a>;
+       vmmc-supply = <&reg_vcc3v3>;
+       mmc-pwrseq = <&mmc0_pwrseq>;
+       bus-width = <4>;
+       non-removable;
+       status = "okay";
+};
+
+&nfc {
+       pinctrl-names = "default";
+       pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
+       status = "okay";
+
+       nand@0 {
+               #address-cells = <2>;
+               #size-cells = <2>;
+               reg = <0>;
+               allwinner,rb = <0>;
+               nand-ecc-mode = "hw";
+       };
+};
+
+&ohci0 {
+       status = "okay";
+};
+
+&otg_sram {
+       status = "okay";
+};
+
+&pio {
+       usb0_id_pin_chip_pro: usb0-id-pin@0 {
+               allwinner,pins = "PG2";
+               allwinner,function = "gpio_in";
+               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+       };
+
+       wifi_reg_on_pin_chip_pro: wifi-reg-on-pin@0 {
+               allwinner,pins = "PB10";
+               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>, <&pwm1_pins>;
+       status = "disabled";
+};
+
+&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;
+};
+
+/*
+ * Both LDO3 and LDO4 are used in parallel to power up the
+ * WiFi/BT chip.
+ */
+&reg_ldo3 {
+       regulator-min-microvolt = <3300000>;
+       regulator-max-microvolt = <3300000>;
+       regulator-name = "vcc-wifi-1";
+       regulator-always-on;
+};
+
+&reg_ldo4 {
+       regulator-min-microvolt = <3300000>;
+       regulator-max-microvolt = <3300000>;
+       regulator-name = "vcc-wifi-2";
+       regulator-always-on;
+};
+
+&uart1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart1_pins_a>, <&uart1_cts_rts_pins_a>;
+       status = "okay";
+};
+
+&uart2 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart2_pins_a>, <&uart2_cts_rts_pins_a>;
+       status = "disabled";
+};
+
+&uart3 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart3_pins_a>, <&uart3_cts_rts_pins_a>;
+       status = "okay";
+};
+
+&usb_otg {
+       /*
+        * The CHIP Pro doesn't have a controllable VBUS, nor does it
+        * have any 5v rail on the board itself.
+        *
+        * If one wants to use it as a true OTG port, it should be
+        * done in the baseboard, and its DT / overlay will add it.
+        */
+       dr_mode = "otg";
+       status = "okay";
+};
+
+&usb_power_supply {
+       status = "okay";
+};
+
+&usbphy {
+       pinctrl-names = "default";
+       pinctrl-0 = <&usb0_id_pin_chip_pro>;
+       usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
+       usb0_vbus_power-supply = <&usb_power_supply>;
+       usb1_vbus-supply = <&reg_vcc5v0>;
+       status = "okay";
+};