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https://github.com/brain-hackers/linux-brain.git
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dc7f2cb218
When powering off the Odroid N2, the tflash_vdd regulator is
automatically turned off by the kernel. This is a problem
when issuing the "reboot" command while using an SD card.
The boot ROM does not power this regulator back on, blocking
the reboot process at the boot ROM stage, preventing the
SD card from being detected.
Adding the "regulator-always-on" property fixes the problem.
Signed-off-by: Xavier Ruppen <xruppen@gmail.com>
Suggested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Fixes: c35f6dc5c3 ("arm64: dts: meson: Add minimal support for Odroid-N2")
[khilman: minor subject change: s/meson/amlogic/]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
388 lines
7.6 KiB
Plaintext
388 lines
7.6 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2019 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*/
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/dts-v1/;
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#include "meson-g12b.dtsi"
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/gpio/meson-g12a-gpio.h>
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#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
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/ {
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compatible = "hardkernel,odroid-n2", "amlogic,g12b";
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model = "Hardkernel ODROID-N2";
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aliases {
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serial0 = &uart_AO;
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ethernet0 = ðmac;
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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@0 {
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device_type = "memory";
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reg = <0x0 0x0 0x0 0x40000000>;
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};
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emmc_pwrseq: emmc-pwrseq {
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compatible = "mmc-pwrseq-emmc";
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reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
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};
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leds {
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compatible = "gpio-leds";
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blue {
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label = "n2:blue";
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gpios = <&gpio_ao GPIOAO_11 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "heartbeat";
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};
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};
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tflash_vdd: regulator-tflash_vdd {
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compatible = "regulator-fixed";
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regulator-name = "TFLASH_VDD";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio_ao GPIOAO_8 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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regulator-always-on;
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};
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tf_io: gpio-regulator-tf_io {
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compatible = "regulator-gpio";
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regulator-name = "TF_IO";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <3300000>;
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gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
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gpios-states = <0>;
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states = <3300000 0
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1800000 1>;
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};
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flash_1v8: regulator-flash_1v8 {
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compatible = "regulator-fixed";
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regulator-name = "FLASH_1V8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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vin-supply = <&vcc_3v3>;
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regulator-always-on;
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};
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main_12v: regulator-main_12v {
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compatible = "regulator-fixed";
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regulator-name = "12V";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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regulator-always-on;
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};
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vcc_5v: regulator-vcc_5v {
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compatible = "regulator-fixed";
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regulator-name = "5V";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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regulator-always-on;
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vin-supply = <&main_12v>;
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};
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vcc_1v8: regulator-vcc_1v8 {
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compatible = "regulator-fixed";
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regulator-name = "VCC_1V8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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vin-supply = <&vcc_3v3>;
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regulator-always-on;
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};
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vcc_3v3: regulator-vcc_3v3 {
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compatible = "regulator-fixed";
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regulator-name = "VCC_3V3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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vin-supply = <&vddao_3v3>;
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regulator-always-on;
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/* FIXME: actually controlled by VDDCPU_B_EN */
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};
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hub_5v: regulator-hub_5v {
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compatible = "regulator-fixed";
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regulator-name = "HUB_5V";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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vin-supply = <&vcc_5v>;
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/* Connected to the Hub CHIPENABLE, LOW sets low power state */
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gpio = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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};
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usb_pwr_en: regulator-usb_pwr_en {
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compatible = "regulator-fixed";
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regulator-name = "USB_PWR_EN";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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vin-supply = <&vcc_5v>;
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/* Connected to the microUSB port power enable */
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gpio = <&gpio GPIOH_6 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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};
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vddao_1v8: regulator-vddao_1v8 {
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compatible = "regulator-fixed";
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regulator-name = "VDDAO_1V8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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vin-supply = <&vddao_3v3>;
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regulator-always-on;
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};
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vddao_3v3: regulator-vddao_3v3 {
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compatible = "regulator-fixed";
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regulator-name = "VDDAO_3V3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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vin-supply = <&main_12v>;
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regulator-always-on;
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};
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hdmi-connector {
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compatible = "hdmi-connector";
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type = "a";
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port {
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hdmi_connector_in: endpoint {
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remote-endpoint = <&hdmi_tx_tmds_out>;
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};
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};
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};
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sound {
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compatible = "amlogic,axg-sound-card";
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model = "G12A-ODROIDN2";
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audio-aux-devs = <&tdmout_b>;
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audio-routing = "TDMOUT_B IN 0", "FRDDR_A OUT 1",
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"TDMOUT_B IN 1", "FRDDR_B OUT 1",
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"TDMOUT_B IN 2", "FRDDR_C OUT 1",
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"TDM_B Playback", "TDMOUT_B OUT";
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assigned-clocks = <&clkc CLKID_MPLL2>,
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<&clkc CLKID_MPLL0>,
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<&clkc CLKID_MPLL1>;
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assigned-clock-parents = <0>, <0>, <0>;
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assigned-clock-rates = <294912000>,
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<270950400>,
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<393216000>;
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status = "okay";
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dai-link-0 {
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sound-dai = <&frddr_a>;
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};
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dai-link-1 {
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sound-dai = <&frddr_b>;
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};
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dai-link-2 {
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sound-dai = <&frddr_c>;
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};
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/* 8ch hdmi interface */
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dai-link-3 {
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sound-dai = <&tdmif_b>;
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dai-format = "i2s";
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dai-tdm-slot-tx-mask-0 = <1 1>;
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dai-tdm-slot-tx-mask-1 = <1 1>;
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dai-tdm-slot-tx-mask-2 = <1 1>;
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dai-tdm-slot-tx-mask-3 = <1 1>;
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mclk-fs = <256>;
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codec {
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sound-dai = <&tohdmitx TOHDMITX_I2S_IN_B>;
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};
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};
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/* hdmi glue */
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dai-link-4 {
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sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>;
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codec {
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sound-dai = <&hdmi_tx>;
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};
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};
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};
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};
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&arb {
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status = "okay";
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};
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&cec_AO {
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pinctrl-0 = <&cec_ao_a_h_pins>;
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pinctrl-names = "default";
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status = "disabled";
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hdmi-phandle = <&hdmi_tx>;
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};
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&cecb_AO {
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pinctrl-0 = <&cec_ao_b_h_pins>;
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pinctrl-names = "default";
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status = "okay";
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hdmi-phandle = <&hdmi_tx>;
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};
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&clkc_audio {
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status = "okay";
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};
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&ext_mdio {
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external_phy: ethernet-phy@0 {
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/* Realtek RTL8211F (0x001cc916) */
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reg = <0>;
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max-speed = <1000>;
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reset-assert-us = <10000>;
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reset-deassert-us = <30000>;
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reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
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interrupt-parent = <&gpio_intc>;
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/* MAC_INTR on GPIOZ_14 */
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interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
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};
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};
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ðmac {
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pinctrl-0 = <ð_pins>, <ð_rgmii_pins>;
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pinctrl-names = "default";
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status = "okay";
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phy-mode = "rgmii";
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phy-handle = <&external_phy>;
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amlogic,tx-delay-ns = <2>;
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};
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&frddr_a {
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status = "okay";
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};
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&frddr_b {
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status = "okay";
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};
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&frddr_c {
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status = "okay";
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};
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&gpio {
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/*
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* WARNING: The USB Hub on the Odroid-N2 needs a reset signal
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* to be turned high in order to be detected by the USB Controller
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* This signal should be handled by a USB specific power sequence
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* in order to reset the Hub when USB bus is powered down.
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*/
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usb-hub {
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gpio-hog;
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gpios = <GPIOH_4 GPIO_ACTIVE_HIGH>;
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output-high;
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line-name = "usb-hub-reset";
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};
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};
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&hdmi_tx {
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status = "okay";
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pinctrl-0 = <&hdmitx_hpd_pins>, <&hdmitx_ddc_pins>;
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pinctrl-names = "default";
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hdmi-supply = <&vcc_5v>;
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};
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&hdmi_tx_tmds_port {
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hdmi_tx_tmds_out: endpoint {
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remote-endpoint = <&hdmi_connector_in>;
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};
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};
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&ir {
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status = "okay";
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pinctrl-0 = <&remote_input_ao_pins>;
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pinctrl-names = "default";
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};
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/* SD card */
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&sd_emmc_b {
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status = "okay";
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pinctrl-0 = <&sdcard_c_pins>;
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pinctrl-1 = <&sdcard_clk_gate_c_pins>;
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pinctrl-names = "default", "clk-gate";
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bus-width = <4>;
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cap-sd-highspeed;
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max-frequency = <50000000>;
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disable-wp;
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cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
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vmmc-supply = <&tflash_vdd>;
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vqmmc-supply = <&tf_io>;
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};
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/* eMMC */
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&sd_emmc_c {
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status = "okay";
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pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>;
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pinctrl-1 = <&emmc_clk_gate_pins>;
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pinctrl-names = "default", "clk-gate";
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bus-width = <8>;
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cap-mmc-highspeed;
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mmc-ddr-1_8v;
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mmc-hs200-1_8v;
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max-frequency = <200000000>;
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disable-wp;
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mmc-pwrseq = <&emmc_pwrseq>;
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vmmc-supply = <&vcc_3v3>;
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vqmmc-supply = <&flash_1v8>;
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};
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&tdmif_b {
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status = "okay";
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};
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&tdmout_b {
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status = "okay";
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};
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&tohdmitx {
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status = "okay";
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};
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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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&usb {
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status = "okay";
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vbus-supply = <&usb_pwr_en>;
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};
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&usb2_phy0 {
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phy-supply = <&vcc_5v>;
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};
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&usb2_phy1 {
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/* Enable the hub which is connected to this port */
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phy-supply = <&hub_5v>;
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};
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