ARM: dts: meson8b: Add support for the Endless Mini (EC-100)
The Endless Mini (EC-100) is a grapefruit-sized computer based on the Amlogic Meson8b (S805) SoC which comes in two variants. Both variants have in common: - Amlogic Meson8b (S805) SoC - two USB 2.0 ports on the rear, one one the front (connected to the SoC through an internal hub) - 3.5mm Stereo out and MIC combo port - HDMI and CVBS output - 5V power supply (rated at 3A / 15W) - an internal embedded micro-controller (called "EC") which implements a "breathing" effect for the LED and allows shutting down (powering off) the whole device - 10/100 Mbit/s Ethernet using an IC Plus IP101A/G PHY (note: the website incorrectly lists a Gigabit Ethernet port) - the CPU voltage is regulated using a PWM regulator. The GPL sources of the EC-100 are using a PWM value of 0x1c0000 for 0.86V and a PWM value of 0x00001c for 1.14V. When using the XTAL (24MHz) as input this translates into a PWM period of 1148ns with 0.86V using a duty cycle of 100% and 1.14V using a duty cycle of 0%. The main differences are: - the main indicator for the variant is the RAM size: the "cheaper" variant has 1 GB of RAM, while the more expensive one comes with 2GB - the storage size differs: 24 GB vs 32 GB - the "1 GB RAM" variant has Ethernet connectivity only, while the "2 GB" variant has a Realtek RTL8723BS SDIO chip which adds 802.11b/g/n wifi and Bluetooth 4.0 support Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This commit is contained in:
Martin Blumenstingl
Kevin Hilman
parent
a77d0bab18
commit
bbedc1f1d9
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@ -321,6 +321,7 @@ dtb-$(CONFIG_MACH_MESON6) += \
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meson6-atv1200.dtb
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dtb-$(CONFIG_MACH_MESON8) += \
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meson8-minix-neo-x8.dtb \
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meson8b-ec100.dtb \
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meson8b-mxq.dtb \
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meson8b-odroidc1.dtb \
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meson8m2-mxiii-plus.dtb
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@ -0,0 +1,248 @@
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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2018 Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
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*/
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/dts-v1/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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#include "meson8b.dtsi"
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/ {
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model = "Endless Computers Endless Mini";
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compatible = "endless,ec100", "amlogic,meson8b";
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aliases {
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serial0 = &uart_AO;
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};
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chosen {
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stdout-path = "serial0:115200n8";
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};
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memory {
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reg = <0x40000000 0x40000000>;
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};
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gpio-keys {
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compatible = "gpio-keys-polled";
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#address-cells = <1>;
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#size-cells = <0>;
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poll-interval = <100>;
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pal-switch {
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label = "pal";
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linux,input-type = <EV_SW>;
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linux,code = <KEY_SWITCHVIDEOMODE>;
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gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
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};
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ntsc-switch {
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label = "ntsc";
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linux,input-type = <EV_SW>;
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linux,code = <KEY_SWITCHVIDEOMODE>;
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gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
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};
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power-button {
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label = "power";
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linux,code = <KEY_POWER>;
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gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
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};
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};
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gpio-poweroff {
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compatible = "gpio-poweroff";
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/*
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* shutdown is managed by the EC (embedded micro-controller)
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* which is configured through GPIOAO_2 (poweroff GPIO) and
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* GPIOAO_7 (power LED, which has to go LOW as well).
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*/
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gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
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timeout-ms = <20000>;
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};
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leds {
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compatible = "gpio-leds";
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power {
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label = "ec100:red:power";
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/*
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* Needs to go LOW (together with the poweroff GPIO)
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* during shutdown to allow the EC (embedded
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* micro-controller) to shutdown the system. Setting
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* the output to LOW signals the EC to start a
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* "breathing"/pulsing effect until the power is fully
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* turned off.
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*/
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gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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};
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};
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usb_vbus: regulator-usb-vbus {
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compatible = "regulator-fixed";
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regulator-name = "USB_VBUS";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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};
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vcc_5v: regulator-vcc5v {
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compatible = "regulator-fixed";
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regulator-name = "VCC5V";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
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regulator-boot-on;
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regulator-always-on;
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};
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vcck: regulator-vcck {
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compatible = "pwm-regulator";
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regulator-name = "VCCK";
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regulator-min-microvolt = <860000>;
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regulator-max-microvolt = <1140000>;
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pwms = <&pwm_cd 0 1148 0>;
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pwm-dutycycle-range = <100 0>;
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regulator-boot-on;
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regulator-always-on;
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};
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vcc_1v8: regulator-vcc1v8 {
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compatible = "regulator-fixed";
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regulator-name = "VCC1V8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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};
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vcc_3v3: regulator-vcc3v3 {
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compatible = "regulator-fixed";
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regulator-name = "VCC3V3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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};
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&cpu0 {
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cpu-supply = <&vcck>;
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};
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ðmac {
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status = "okay";
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pinctrl-0 = <ð_rmii_pins>;
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pinctrl-names = "default";
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phy-handle = <ð_phy0>;
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phy-mode = "rmii";
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snps,reset-gpio = <&gpio GPIOH_4 0>;
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snps,reset-delays-us = <0 10000 1000000>;
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snps,reset-active-low;
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mdio {
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compatible = "snps,dwmac-mdio";
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#address-cells = <1>;
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#size-cells = <0>;
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eth_phy0: ethernet-phy@0 {
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/* IC Plus IP101A/G (0x02430c54) */
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reg = <0>;
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};
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};
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};
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&i2c_A {
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status = "okay";
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pinctrl-0 = <&i2c_a_pins>;
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pinctrl-names = "default";
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rt5640: codec@1c {
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compatible = "realtek,rt5640";
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reg = <0x1c>;
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interrupt-parent = <&gpio_intc>;
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interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
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realtek,in1-differential;
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};
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};
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&saradc {
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status = "okay";
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vref-supply = <&vcc_1v8>;
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};
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&sdio {
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status = "okay";
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pinctrl-0 = <&sd_b_pins>;
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pinctrl-names = "default";
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/* SD card */
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sd_card_slot: slot@1 {
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compatible = "mmc-slot";
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reg = <1>;
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status = "okay";
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bus-width = <4>;
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no-sdio;
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cap-mmc-highspeed;
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cap-sd-highspeed;
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disable-wp;
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cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
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cd-inverted;
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vmmc-supply = <&vcc_3v3>;
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};
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};
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&pwm_cd {
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status = "okay";
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pinctrl-0 = <&pwm_c1_pins>;
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pinctrl-names = "default";
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clocks = <&clkc CLKID_XTAL>;
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clock-names = "clkin0";
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};
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/* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
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&uart_AO {
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status = "okay";
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pinctrl-0 = <&uart_ao_a_pins>;
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pinctrl-names = "default";
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};
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/*
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* connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
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* combo chip. This is only available on the variant with 2GB RAM.
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*/
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&uart_B {
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status = "okay";
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pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
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pinctrl-names = "default";
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uart-has-rtscts;
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};
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&usb1 {
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status = "okay";
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vbus-supply = <&usb_vbus>;
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};
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&usb1_phy {
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status = "okay";
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};
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