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linux/arch/arm/boot/dts/meson8b-ec100.dts
Martin Blumenstingl 73501b890a ARM: dts: meson8b: ec100: enable the SDHC controller 
EC-100 has built-in eMMC flash which is hard-wired to 3.3V VCC (which
means it's limited to high-speed MMC modes). Enable the SDHC controller
to access the contents of the eMMC flash.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200620163654.37207-3-martin.blumenstingl@googlemail.com
2020-07-13 11:58:15 -07:00

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// 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 {
device_type = "memory";
reg = <0x40000000 0x40000000>;
};
emmc_pwrseq: emmc-pwrseq {
compatible = "mmc-pwrseq-emmc";
reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
};
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>;
};
iio-hwmon {
compatible = "iio-hwmon";
io-channels = <&saradc 8>;
};
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";
};
};
rtc32k_xtal: rtc32k-xtal-clk {
/* X2 in the schematics */
compatible = "fixed-clock";
clock-frequency = <32768>;
clock-output-names = "RTC32K";
#clock-cells = <0>;
};
usb_vbus: regulator-usb-vbus {
/*
* Silergy SY6288CCAC-GP 2A Power Distribution Switch.
*/
compatible = "regulator-fixed";
regulator-name = "USB_VBUS";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
vin-supply = <&vcc_5v>;
/*
* signal name from the schematics: USB_PWR_EN
*/
gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
vcc_5v: regulator-vcc5v {
/*
* supplied by the main power input which called PWR_5V_STB
* in the schematics
*/
compatible = "regulator-fixed";
regulator-name = "VCC5V";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
/*
* signal name from the schematics: 3V3_5V_EN
*/
gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
regulator-boot-on;
regulator-always-on;
};
vcck: regulator-vcck {
/*
* Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
* Synchronous Step Down Regulator.
*/
compatible = "pwm-regulator";
regulator-name = "VCCK";
regulator-min-microvolt = <860000>;
regulator-max-microvolt = <1140000>;
vin-supply = <&vcc_5v>;
pwms = <&pwm_cd 0 1148 0>;
pwm-dutycycle-range = <100 0>;
regulator-boot-on;
regulator-always-on;
};
vcc_1v8: regulator-vcc1v8 {
/*
* ABLIC S-1339D18-M5001-GP
*/
compatible = "regulator-fixed";
regulator-name = "VCC1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vcc_3v3>;
};
vcc_3v3: regulator-vcc3v3 {
/*
* Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
* Synchronous Step Down Regulator. Also called
* VDDIO_AO3.3V in the schematics.
*/
compatible = "regulator-fixed";
regulator-name = "VCC3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vcc_5v>;
};
vcc_ddr3: regulator-vcc-ddr3 {
/*
* Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
* Synchronous Step Down Regulator. Also called
* DDR3_1.5V in the schematics.
*/
compatible = "regulator-fixed";
regulator-name = "VCC_DDR3_1V5";
regulator-min-microvolt = <1500000>;
regulator-max-microvolt = <1500000>;
vin-supply = <&vcc_5v>;
regulator-boot-on;
regulator-always-on;
};
vcc_rtc: regulator-vcc-rtc {
/*
* Global Mixed-mode Technology Inc. G918T12U-GP
*/
compatible = "regulator-fixed";
regulator-name = "VCC_RTC";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
/*
* When the board is powered then the input is VCC3V3,
* otherwise power is taken from the coin cell battery.
*/
vin-supply = <&vcc_3v3>;
};
vddee: regulator-vddee {
/*
* Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
* Synchronous Step Down Regulator. Also called VDDAO
* in a part of the schematics.
*/
compatible = "pwm-regulator";
regulator-name = "VDDEE";
regulator-min-microvolt = <860000>;
regulator-max-microvolt = <1140000>;
vin-supply = <&vcc_5v>;
pwms = <&pwm_cd 1 1148 0>;
pwm-dutycycle-range = <100 0>;
regulator-boot-on;
regulator-always-on;
};
};
&cpu0 {
cpu-supply = <&vcck>;
};
&ethmac {
status = "okay";
pinctrl-0 = <&eth_rmii_pins>;
pinctrl-names = "default";
phy-handle = <&eth_phy0>;
phy-mode = "rmii";
mdio {
compatible = "snps,dwmac-mdio";
#address-cells = <1>;
#size-cells = <0>;
eth_phy0: ethernet-phy@0 {
/* IC Plus IP101A/G (0x02430c54) */
reg = <0>;
reset-assert-us = <10000>;
reset-deassert-us = <10000>;
reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
icplus,select-interrupt;
interrupt-parent = <&gpio_intc>;
/* GPIOH_3 */
interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
};
};
};
&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;
};
};
&mali {
mali-supply = <&vddee>;
};
&saradc {
status = "okay";
vref-supply = <&vcc_1v8>;
};
&sdhc {
status = "okay";
pinctrl-0 = <&sdxc_c_pins>;
pinctrl-names = "default";
bus-width = <8>;
max-frequency = <50000000>;
cap-mmc-highspeed;
disable-wp;
non-removable;
no-sdio;
mmc-pwrseq = <&emmc_pwrseq>;
vmmc-supply = <&vcc_3v3>;
vqmmc-supply = <&vcc_3v3>;
};
&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_LOW>;
vmmc-supply = <&vcc_3v3>;
};
};
&gpio_ao {
gpio-line-names = "Linux_TX", "Linux_RX",
"SLP_S5_N", "USB2_OC_FLAG#",
"HUB_RST", "USB_PWR_EN",
"I2S_IN", "SLP_S1_N",
"TCK", "TMS", "TDI", "TDO",
"HDMI_CEC", "5640_IRQ",
"MUTE", "S805_TEST#";
};
&gpio {
gpio-line-names = /* Bank GPIOX */
"WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
"WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
"BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
"WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
"UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
"UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
/* Bank GPIOY */
"", "", "", "", "", "", "", "", "", "",
"", "",
/* Bank GPIODV */
"VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
"I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
"VDDEE_PWM 3V3_5V_EN",
/* Bank GPIOH */
"HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
"RMII_IRQ", "RMII_RST#", "RMII_TXD1",
"RMII_TXD0", "AV_select_1", "AV_select_2",
"MCU_Control_S",
/* Bank CARD */
"SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
"SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
"CARD_EN_DET (CARD_DET)",
/* Bank BOOT */
"NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
"NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
"NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
"NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
"NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
"NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
"NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
"nWE_S1 NAND_nWE (EMMC)", "", "", "SPI_CS",
/* Bank DIF */
"RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
"RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
"RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
"RMII_MDIO";
};
&pwm_cd {
status = "okay";
pinctrl-0 = <&pwm_c1_pins>, <&pwm_d_pins>;
pinctrl-names = "default";
clocks = <&xtal>, <&xtal>;
clock-names = "clkin0", "clkin1";
};
&rtc {
status = "okay";
clocks = <&rtc32k_xtal>;
vdd-supply = <&vcc_rtc>;
};
/* 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";
};
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