ARM: dts: Amlogic updates for v4.20

- fix clock controller register sizes
 - new board: Endless Mini (EC-100) by Endless Mobile
 - add voltage regulators
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Merge tag 'amlogic-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt

ARM: dts: Amlogic updates for v4.20
- fix clock controller register sizes
- new board: Endless Mini (EC-100) by Endless Mobile
- add voltage regulators

* tag 'amlogic-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  ARM: dts: meson8b: odroidc1: add stdout-path property
  ARM: dts: meson8b: odroidc1: enable the SAR ADC
  ARM: dts: meson8b: odroidc1: add the fixed voltage regulators
  ARM: dts: meson8b: odroidc1: add the CPU voltage regulator
  ARM: dts: meson8b: Add support for the Endless Mini (EC-100)
  ARM: dts: meson8b: add the RMII pins
  ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins
  dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)
  dt-bindings: add vendor prefix for "Endless Mobile, Inc."
  ARM: dts: meson8b: fix the clock controller register size
  ARM: dts: meson8: fix the clock controller register size

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/devicetree/bindings/arm/amlogic.txt

@@ -63,6 +63,7 @@ Board compatible values (alphabetically, grouped by SoC):
 
   - "minix,neo-x8" (Meson8)
 
+  - "endless,ec100" (Meson8b)
   - "hardkernel,odroid-c1" (Meson8b)
   - "tronfy,mxq" (Meson8b)
 

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -114,6 +114,7 @@ elan	Elan Microelectronic Corp.
 embest	Shenzhen Embest Technology Co., Ltd.
 emmicro	EM Microelectronic
 emtrion	emtrion GmbH
+endless	Endless Mobile, Inc.
 energymicro	Silicon Laboratories (formerly Energy Micro AS)
 engicam	Engicam S.r.l.
 epcos	EPCOS AG

arch/arm/boot/dts/Makefile

@@ -322,6 +322,7 @@ dtb-$(CONFIG_MACH_MESON6) += \
 	meson6-atv1200.dtb
 dtb-$(CONFIG_MACH_MESON8) += \
 	meson8-minix-neo-x8.dtb \
+	meson8b-ec100.dtb \
 	meson8b-mxq.dtb \
 	meson8b-odroidc1.dtb \
 	meson8m2-mxiii-plus.dtb

arch/arm/boot/dts/meson8.dtsi

@@ -194,7 +194,7 @@ clkc: clock-controller@4000 {
 		#clock-cells = <1>;
 		#reset-cells = <1>;
 		compatible = "amlogic,meson8-clkc";
-		reg = <0x8000 0x4>, <0x4000 0x460>;
+		reg = <0x8000 0x4>, <0x4000 0x400>;
 	};
 
 	reset: reset-controller@4404 {

arch/arm/boot/dts/meson8b-ec100.dts

@@ -0,0 +1,248 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2018 Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "meson8b.dtsi"
+
+/ {
+	model = "Endless Computers Endless Mini";
+	compatible = "endless,ec100", "amlogic,meson8b";
+
+	aliases {
+		serial0 = &uart_AO;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory {
+		reg = <0x40000000 0x40000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <100>;
+
+		pal-switch {
+			label = "pal";
+			linux,input-type = <EV_SW>;
+			linux,code = <KEY_SWITCHVIDEOMODE>;
+			gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
+		};
+
+		ntsc-switch {
+			label = "ntsc";
+			linux,input-type = <EV_SW>;
+			linux,code = <KEY_SWITCHVIDEOMODE>;
+			gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
+		};
+
+		power-button {
+			label = "power";
+			linux,code = <KEY_POWER>;
+			gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-poweroff {
+		compatible = "gpio-poweroff";
+		/*
+		 * shutdown is managed by the EC (embedded micro-controller)
+		 * which is configured through GPIOAO_2 (poweroff GPIO) and
+		 * GPIOAO_7 (power LED, which has to go LOW as well).
+		 */
+		gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
+		timeout-ms = <20000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		power {
+			label = "ec100:red:power";
+			/*
+			 * Needs to go LOW (together with the poweroff GPIO)
+			 * during shutdown to allow the EC (embedded
+			 * micro-controller) to shutdown the system. Setting
+			 * the output to LOW signals the EC to start a
+			 * "breathing"/pulsing effect until the power is fully
+			 * turned off.
+			 */
+			gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+	};
+
+	usb_vbus: regulator-usb-vbus {
+		compatible = "regulator-fixed";
+
+		regulator-name = "USB_VBUS";
+
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+
+		gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	vcc_5v: regulator-vcc5v {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VCC5V";
+
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+
+		gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
+
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	vcck: regulator-vcck {
+		compatible = "pwm-regulator";
+
+		regulator-name = "VCCK";
+		regulator-min-microvolt = <860000>;
+		regulator-max-microvolt = <1140000>;
+
+		pwms = <&pwm_cd 0 1148 0>;
+		pwm-dutycycle-range = <100 0>;
+
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	vcc_1v8: regulator-vcc1v8 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VCC1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	vcc_3v3: regulator-vcc3v3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VCC3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vcck>;
+};
+
+&ethmac {
+	status = "okay";
+
+	pinctrl-0 = <&eth_rmii_pins>;
+	pinctrl-names = "default";
+
+	phy-handle = <&eth_phy0>;
+	phy-mode = "rmii";
+
+	snps,reset-gpio = <&gpio GPIOH_4 0>;
+	snps,reset-delays-us = <0 10000 1000000>;
+	snps,reset-active-low;
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		eth_phy0: ethernet-phy@0 {
+			/* IC Plus IP101A/G (0x02430c54) */
+			reg = <0>;
+		};
+	};
+};
+
+&i2c_A {
+	status = "okay";
+	pinctrl-0 = <&i2c_a_pins>;
+	pinctrl-names = "default";
+
+	rt5640: codec@1c {
+		compatible = "realtek,rt5640";
+		reg = <0x1c>;
+		interrupt-parent = <&gpio_intc>;
+		interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
+		realtek,in1-differential;
+	};
+};
+
+&saradc {
+	status = "okay";
+	vref-supply = <&vcc_1v8>;
+};
+
+&sdio {
+	status = "okay";
+
+	pinctrl-0 = <&sd_b_pins>;
+	pinctrl-names = "default";
+
+	/* SD card */
+	sd_card_slot: slot@1 {
+		compatible = "mmc-slot";
+		reg = <1>;
+		status = "okay";
+
+		bus-width = <4>;
+		no-sdio;
+		cap-mmc-highspeed;
+		cap-sd-highspeed;
+		disable-wp;
+
+		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+		cd-inverted;
+
+		vmmc-supply = <&vcc_3v3>;
+	};
+};
+
+&pwm_cd {
+	status = "okay";
+	pinctrl-0 = <&pwm_c1_pins>;
+	pinctrl-names = "default";
+	clocks = <&clkc CLKID_XTAL>;
+	clock-names = "clkin0";
+};
+
+/* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
+&uart_AO {
+	status = "okay";
+	pinctrl-0 = <&uart_ao_a_pins>;
+	pinctrl-names = "default";
+};
+
+/*
+ * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
+ * combo chip. This is only available on the variant with 2GB RAM.
+ */
+&uart_B {
+	status = "okay";
+	pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
+	pinctrl-names = "default";
+	uart-has-rtscts;
+};
+
+&usb1 {
+	status = "okay";
+	vbus-supply = <&usb_vbus>;
+};
+
+&usb1_phy {
+	status = "okay";
+};

arch/arm/boot/dts/meson8b-odroidc1.dts

@@ -57,6 +57,10 @@ aliases {
 		mmc0 = &sd_card_slot;
 	};
 
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	memory {
 		reg = <0x40000000 0x40000000>;
 	};
@@ -71,6 +75,14 @@ blue {
 		};
 	};
 
+	p5v0: regulator-p5v0 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "P5V0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
 	tflash_vdd: regulator-tflash_vdd {
 		/*
 		 * signal name from schematics: TFLASH_VDD_EN
@@ -81,6 +93,8 @@ tflash_vdd: regulator-tflash_vdd {
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 
+		vin-supply = <&vcc_3v3>;
+
 		gpio = <&gpio GPIOY_12 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
@@ -92,6 +106,8 @@ tf_io: gpio-regulator-tf_io {
 		regulator-min-microvolt = <1800000>;
 		regulator-max-microvolt = <3300000>;
 
+		vin-supply = <&vcc_3v3>;
+
 		/*
 		 * signal name from schematics: TF_3V3N_1V8_EN
 		 */
@@ -101,6 +117,86 @@ tf_io: gpio-regulator-tf_io {
 		states = <3300000 0
 			  1800000 1>;
 	};
+
+	vcc_1v8: regulator-vcc-1v8 {
+		/*
+		 * RICHTEK RT9179 configured for a fixed output voltage of
+		 * 1.8V. This supplies not only VCC1V8 but also IOREF_1V8 and
+		 * VDD1V8 according to the schematics.
+		 */
+		compatible = "regulator-fixed";
+
+		regulator-name = "VCC1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		vin-supply = <&p5v0>;
+	};
+
+	vcc_3v3: regulator-vcc-3v3 {
+		/*
+		 * Monolithic Power Systems MP2161 configured for a fixed
+		 * output voltage of 3.3V. This supplies not only VCC3V3 but
+		 * also VDD3V3 and VDDIO_AO3V3 according to the schematics.
+		 */
+		compatible = "regulator-fixed";
+
+		regulator-name = "VCC3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		vin-supply = <&p5v0>;
+	};
+
+	vcck: regulator-vcck {
+		/* Monolithic Power Systems MP2161 */
+		compatible = "pwm-regulator";
+
+		regulator-name = "VCCK";
+		regulator-min-microvolt = <860000>;
+		regulator-max-microvolt = <1140000>;
+
+		vin-supply = <&p5v0>;
+
+		pwms = <&pwm_cd 0 12218 0>;
+		pwm-dutycycle-range = <91 0>;
+
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	vddc_ddr: regulator-vddc-ddr {
+		/*
+		 * Monolithic Power Systems MP2161 configured for a fixed
+		 * output voltage of 1.5V. This supplies not only DDR_VDDC but
+		 * also DDR3_1V5 according to the schematics.
+		 */
+		compatible = "regulator-fixed";
+
+		regulator-name = "DDR_VDDC";
+		regulator-min-microvolt = <1500000>;
+		regulator-max-microvolt = <1500000>;
+
+		vin-supply = <&p5v0>;
+	};
+
+	vdd_rtc: regulator-vdd-rtc {
+		/*
+		 * Torex Semiconductor XC6215 configured for a fixed output of
+		 * 0.9V.
+		 */
+		compatible = "regulator-fixed";
+
+		regulator-name = "VDD_RTC";
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+
+		vin-supply = <&vcc_3v3>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vcck>;
 };
 
 &ethmac {
@@ -154,6 +250,11 @@ &ir_receiver {
 	pinctrl-names = "default";
 };
 
+&saradc {
+	status = "okay";
+	vref-supply = <&vcc_1v8>;
+};
+
 &sdio {
 	status = "okay";
 
@@ -180,6 +281,14 @@ sd_card_slot: slot@1 {
 	};
 };
 
+&pwm_cd {
+	status = "okay";
+	pinctrl-0 = <&pwm_c1_pins>;
+	pinctrl-names = "default";
+	clocks = <&clkc CLKID_XTAL>;
+	clock-names = "clkin0";
+};
+
 &uart_AO {
 	status = "okay";
 	pinctrl-0 = <&uart_ao_a_pins>;

arch/arm/boot/dts/meson8b.dtsi

@@ -163,7 +163,7 @@ clkc: clock-controller@4000 {
 		#clock-cells = <1>;
 		#reset-cells = <1>;
 		compatible = "amlogic,meson8b-clkc";
-		reg = <0x8000 0x4>, <0x4000 0x460>;
+		reg = <0x8000 0x4>, <0x4000 0x400>;
 	};
 
 	reset: reset-controller@4404 {
@@ -223,6 +223,28 @@ mux {
 			};
 		};
 
+		eth_rmii_pins: eth-rmii {
+			mux {
+				groups = "eth_tx_en",
+					 "eth_txd1_0",
+					 "eth_txd0_0",
+					 "eth_rx_clk",
+					 "eth_rx_dv",
+					 "eth_rxd1",
+					 "eth_rxd0",
+					 "eth_mdio_en",
+					 "eth_mdc";
+				function = "ethernet";
+			};
+		};
+
+		i2c_a_pins: i2c-a {
+			mux {
+				groups = "i2c_sda_a", "i2c_sck_a";
+				function = "i2c_a";
+			};
+		};
+
 		sd_b_pins: sd-b {
 			mux {
 				groups = "sd_d0_b", "sd_d1_b", "sd_d2_b",
@@ -230,6 +252,29 @@ mux {
 				function = "sd_b";
 			};
 		};
+
+		pwm_c1_pins: pwm-c1 {
+			mux {
+				groups = "pwm_c1";
+				function = "pwm_c";
+			};
+		};
+
+		uart_b0_pins: uart-b0 {
+			mux {
+				groups = "uart_tx_b0",
+				       "uart_rx_b0";
+				function = "uart_b";
+			};
+		};
+
+		uart_b0_cts_rts_pins: uart-b0-cts-rts {
+			mux {
+				groups = "uart_cts_b0",
+				       "uart_rts_b0";
+				function = "uart_b";
+			};
+		};
 	};
 };