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2bb8673914
Unloading regulators through dynamic device tree doesn't work as the regulators will unregister whilst clients are still registered. Whilst the regulator framework does WARN when that happens, the client putting the regulator then typically results in a NULL dereference and badness. Instead of creating regulators and clocks from the overlays, create regulators and clocks for the sensors in the base DT. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
631 lines
11 KiB
Plaintext
631 lines
11 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/dts-v1/;
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#include "bcm2711.dtsi"
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#include "bcm2835-rpi.dtsi"
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#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
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/ {
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compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
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model = "Raspberry Pi 4 Model B";
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chosen {
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/* 8250 auxiliary UART instead of pl011 */
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stdout-path = "serial1:115200n8";
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};
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/* Will be filled by the bootloader */
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memory@0 {
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device_type = "memory";
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reg = <0 0 0>;
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};
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aliases {
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emmc2bus = &emmc2bus;
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ethernet0 = &genet;
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pcie0 = &pcie0;
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blconfig = &blconfig;
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};
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leds {
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led-act {
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gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
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};
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led-pwr {
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label = "PWR";
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gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
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default-state = "keep";
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linux,default-trigger = "default-on";
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};
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};
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wifi_pwrseq: wifi-pwrseq {
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compatible = "mmc-pwrseq-simple";
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reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
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};
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sd_io_1v8_reg: sd_io_1v8_reg {
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compatible = "regulator-gpio";
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regulator-name = "vdd-sd-io";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-always-on;
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regulator-settling-time-us = <5000>;
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gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
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states = <1800000 0x1>,
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<3300000 0x0>;
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status = "okay";
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};
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sd_vcc_reg: sd_vcc_reg {
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compatible = "regulator-fixed";
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regulator-name = "vcc-sd";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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enable-active-high;
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gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
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};
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};
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&ddc0 {
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status = "okay";
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};
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&ddc1 {
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status = "okay";
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};
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&firmware {
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firmware_clocks: clocks {
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compatible = "raspberrypi,firmware-clocks";
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#clock-cells = <1>;
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};
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expgpio: gpio {
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compatible = "raspberrypi,firmware-gpio";
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "BT_ON",
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"WL_ON",
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"PWR_LED_OFF",
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"GLOBAL_RESET",
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"VDD_SD_IO_SEL",
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"CAM_GPIO",
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"SD_PWR_ON",
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"SD_OC_N";
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status = "okay";
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};
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reset: reset {
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compatible = "raspberrypi,firmware-reset";
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#reset-cells = <1>;
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};
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};
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&gpio {
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/*
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* Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
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* the official GPU firmware DT blob.
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*
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* Legend:
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* "FOO" = GPIO line named "FOO" on the schematic
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* "FOO_N" = GPIO line named "FOO" on schematic, active low
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*/
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gpio-line-names = "ID_SDA",
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"ID_SCL",
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"SDA1",
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"SCL1",
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"GPIO_GCLK",
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"GPIO5",
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"GPIO6",
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"SPI_CE1_N",
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"SPI_CE0_N",
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"SPI_MISO",
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"SPI_MOSI",
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"SPI_SCLK",
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"GPIO12",
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"GPIO13",
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/* Serial port */
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"TXD1",
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"RXD1",
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"GPIO16",
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"GPIO17",
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"GPIO18",
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"GPIO19",
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"GPIO20",
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"GPIO21",
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"GPIO22",
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"GPIO23",
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"GPIO24",
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"GPIO25",
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"GPIO26",
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"GPIO27",
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"RGMII_MDIO",
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"RGMIO_MDC",
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/* Used by BT module */
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"CTS0",
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"RTS0",
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"TXD0",
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"RXD0",
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/* Used by Wifi */
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"SD1_CLK",
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"SD1_CMD",
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"SD1_DATA0",
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"SD1_DATA1",
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"SD1_DATA2",
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"SD1_DATA3",
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/* Shared with SPI flash */
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"PWM0_MISO",
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"PWM1_MOSI",
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"STATUS_LED_G_CLK",
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"SPIFLASH_CE_N",
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"SDA0",
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"SCL0",
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"RGMII_RXCLK",
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"RGMII_RXCTL",
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"RGMII_RXD0",
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"RGMII_RXD1",
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"RGMII_RXD2",
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"RGMII_RXD3",
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"RGMII_TXCLK",
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"RGMII_TXCTL",
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"RGMII_TXD0",
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"RGMII_TXD1",
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"RGMII_TXD2",
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"RGMII_TXD3";
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};
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&hdmi0 {
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clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
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clock-names = "hdmi", "bvb", "audio", "cec";
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wifi-2.4ghz-coexistence;
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status = "okay";
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};
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&hdmi1 {
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clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
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clock-names = "hdmi", "bvb", "audio", "cec";
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wifi-2.4ghz-coexistence;
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status = "okay";
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};
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&hvs {
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clocks = <&firmware_clocks 4>;
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};
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&pixelvalve0 {
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status = "okay";
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};
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&pixelvalve1 {
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status = "okay";
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};
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&pixelvalve2 {
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status = "okay";
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};
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&pixelvalve4 {
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status = "okay";
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};
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&pwm1 {
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pinctrl-names = "default";
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pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
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status = "okay";
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};
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&rmem {
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/*
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* RPi4's co-processor will copy the board's bootloader configuration
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* into memory for the OS to consume. It'll also update this node with
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* its placement information.
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*/
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blconfig: nvram@0 {
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compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0x0 0x0 0x0>;
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no-map;
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status = "disabled";
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};
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};
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/* SDHCI is used to control the SDIO for wireless */
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&sdhci {
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#address-cells = <1>;
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#size-cells = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&emmc_gpio34>;
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bus-width = <4>;
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non-removable;
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mmc-pwrseq = <&wifi_pwrseq>;
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status = "okay";
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brcmf: wifi@1 {
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reg = <1>;
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compatible = "brcm,bcm4329-fmac";
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};
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};
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/* EMMC2 is used to drive the SD card */
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&emmc2 {
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vqmmc-supply = <&sd_io_1v8_reg>;
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vmmc-supply = <&sd_vcc_reg>;
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broken-cd;
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status = "okay";
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};
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&genet {
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phy-handle = <&phy1>;
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phy-mode = "rgmii-rxid";
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status = "okay";
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};
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&genet_mdio {
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phy1: ethernet-phy@1 {
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/* No PHY interrupt */
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reg = <0x1>;
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};
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};
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&pcie0 {
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pci@0,0 {
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device_type = "pci";
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#address-cells = <3>;
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#size-cells = <2>;
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ranges;
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reg = <0 0 0 0 0>;
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usb@0,0 {
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reg = <0 0 0 0 0>;
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resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
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};
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};
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};
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/* uart0 communicates with the BT module */
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&uart0 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
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uart-has-rtscts;
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status = "okay";
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bluetooth {
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compatible = "brcm,bcm43438-bt";
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max-speed = <2000000>;
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shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
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};
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};
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/* uart1 is mapped to the pin header */
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&uart1 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart1_gpio14>;
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status = "okay";
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};
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&vchiq {
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interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
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};
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&vc4 {
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status = "okay";
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};
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&vec {
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status = "disabled";
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};
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// =============================================
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// Downstream rpi- changes
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#define BCM2711
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#include "bcm270x.dtsi"
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#include "bcm271x-rpi-bt.dtsi"
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/ {
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soc {
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/delete-node/ pixelvalve@7e807000;
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/delete-node/ hdmi@7e902000;
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};
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};
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#include "bcm2711-rpi.dtsi"
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#include "bcm283x-rpi-csi1-2lane.dtsi"
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#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
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/ {
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chosen {
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bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
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};
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aliases {
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serial0 = &uart1;
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serial1 = &uart0;
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mmc0 = &emmc2;
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mmc1 = &mmcnr;
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mmc2 = &sdhost;
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i2c3 = &i2c3;
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i2c4 = &i2c4;
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i2c5 = &i2c5;
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i2c6 = &i2c6;
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i2c20 = &ddc0;
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i2c21 = &ddc1;
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spi3 = &spi3;
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spi4 = &spi4;
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spi5 = &spi5;
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spi6 = &spi6;
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/delete-property/ intc;
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};
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/delete-node/ wifi-pwrseq;
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};
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&mmcnr {
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pinctrl-names = "default";
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pinctrl-0 = <&sdio_pins>;
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bus-width = <4>;
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status = "okay";
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};
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&uart0 {
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pinctrl-0 = <&uart0_pins &bt_pins>;
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status = "okay";
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};
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&uart1 {
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pinctrl-0 = <&uart1_pins>;
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};
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&spi0 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
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cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
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spidev0: spidev@0{
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compatible = "spidev";
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reg = <0>; /* CE0 */
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#address-cells = <1>;
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#size-cells = <0>;
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spi-max-frequency = <125000000>;
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};
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spidev1: spidev@1{
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compatible = "spidev";
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reg = <1>; /* CE1 */
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#address-cells = <1>;
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#size-cells = <0>;
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spi-max-frequency = <125000000>;
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};
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};
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&gpio {
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spi0_pins: spi0_pins {
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brcm,pins = <9 10 11>;
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brcm,function = <BCM2835_FSEL_ALT0>;
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};
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spi0_cs_pins: spi0_cs_pins {
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brcm,pins = <8 7>;
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brcm,function = <BCM2835_FSEL_GPIO_OUT>;
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};
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spi3_pins: spi3_pins {
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brcm,pins = <1 2 3>;
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brcm,function = <BCM2835_FSEL_ALT3>;
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};
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spi3_cs_pins: spi3_cs_pins {
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brcm,pins = <0 24>;
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brcm,function = <BCM2835_FSEL_GPIO_OUT>;
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};
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spi4_pins: spi4_pins {
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brcm,pins = <5 6 7>;
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brcm,function = <BCM2835_FSEL_ALT3>;
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};
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spi4_cs_pins: spi4_cs_pins {
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brcm,pins = <4 25>;
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brcm,function = <BCM2835_FSEL_GPIO_OUT>;
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};
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spi5_pins: spi5_pins {
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brcm,pins = <13 14 15>;
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brcm,function = <BCM2835_FSEL_ALT3>;
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};
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spi5_cs_pins: spi5_cs_pins {
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brcm,pins = <12 26>;
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brcm,function = <BCM2835_FSEL_GPIO_OUT>;
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};
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spi6_pins: spi6_pins {
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brcm,pins = <19 20 21>;
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brcm,function = <BCM2835_FSEL_ALT3>;
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};
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spi6_cs_pins: spi6_cs_pins {
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brcm,pins = <18 27>;
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brcm,function = <BCM2835_FSEL_GPIO_OUT>;
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};
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i2c0_pins: i2c0 {
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brcm,pins = <0 1>;
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brcm,function = <BCM2835_FSEL_ALT0>;
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brcm,pull = <BCM2835_PUD_UP>;
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};
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i2c1_pins: i2c1 {
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brcm,pins = <2 3>;
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brcm,function = <BCM2835_FSEL_ALT0>;
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brcm,pull = <BCM2835_PUD_UP>;
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};
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i2c3_pins: i2c3 {
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brcm,pins = <4 5>;
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brcm,function = <BCM2835_FSEL_ALT5>;
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brcm,pull = <BCM2835_PUD_UP>;
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};
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i2c4_pins: i2c4 {
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brcm,pins = <8 9>;
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brcm,function = <BCM2835_FSEL_ALT5>;
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brcm,pull = <BCM2835_PUD_UP>;
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};
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i2c5_pins: i2c5 {
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brcm,pins = <12 13>;
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brcm,function = <BCM2835_FSEL_ALT5>;
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brcm,pull = <BCM2835_PUD_UP>;
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};
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i2c6_pins: i2c6 {
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brcm,pins = <22 23>;
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brcm,function = <BCM2835_FSEL_ALT5>;
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brcm,pull = <BCM2835_PUD_UP>;
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};
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i2s_pins: i2s {
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brcm,pins = <18 19 20 21>;
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brcm,function = <BCM2835_FSEL_ALT0>;
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};
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sdio_pins: sdio_pins {
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brcm,pins = <34 35 36 37 38 39>;
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brcm,function = <BCM2835_FSEL_ALT3>; // alt3 = SD1
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brcm,pull = <0 2 2 2 2 2>;
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};
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bt_pins: bt_pins {
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brcm,pins = "-"; // non-empty to keep btuart happy, //4 = 0
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// to fool pinctrl
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brcm,function = <0>;
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brcm,pull = <2>;
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};
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uart0_pins: uart0_pins {
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brcm,pins = <32 33>;
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brcm,function = <BCM2835_FSEL_ALT3>;
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brcm,pull = <0 2>;
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};
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uart1_pins: uart1_pins {
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brcm,pins;
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brcm,function;
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brcm,pull;
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};
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uart2_pins: uart2_pins {
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brcm,pins = <0 1>;
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brcm,function = <BCM2835_FSEL_ALT4>;
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brcm,pull = <0 2>;
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};
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uart3_pins: uart3_pins {
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brcm,pins = <4 5>;
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brcm,function = <BCM2835_FSEL_ALT4>;
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brcm,pull = <0 2>;
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};
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uart4_pins: uart4_pins {
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brcm,pins = <8 9>;
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brcm,function = <BCM2835_FSEL_ALT4>;
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brcm,pull = <0 2>;
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};
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uart5_pins: uart5_pins {
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brcm,pins = <12 13>;
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brcm,function = <BCM2835_FSEL_ALT4>;
|
|
brcm,pull = <0 2>;
|
|
};
|
|
};
|
|
|
|
&i2c0if {
|
|
clock-frequency = <100000>;
|
|
};
|
|
|
|
&i2c1 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&i2c1_pins>;
|
|
clock-frequency = <100000>;
|
|
};
|
|
|
|
&i2s {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&i2s_pins>;
|
|
};
|
|
|
|
// =============================================
|
|
// Board specific stuff here
|
|
|
|
&sdhost {
|
|
status = "disabled";
|
|
};
|
|
|
|
&phy1 {
|
|
led-modes = <0x00 0x08>; /* link/activity link */
|
|
};
|
|
|
|
&gpio {
|
|
audio_pins: audio_pins {
|
|
brcm,pins = <40 41>;
|
|
brcm,function = <4>;
|
|
};
|
|
};
|
|
|
|
&leds {
|
|
act_led: led-act {
|
|
label = "led0";
|
|
linux,default-trigger = "mmc0";
|
|
gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
|
|
pwr_led: led-pwr {
|
|
label = "led1";
|
|
linux,default-trigger = "default-on";
|
|
gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
|
|
};
|
|
};
|
|
|
|
&pwm1 {
|
|
status = "disabled";
|
|
};
|
|
|
|
&audio {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&audio_pins>;
|
|
};
|
|
|
|
&cam1_reg {
|
|
gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
|
|
cam0_reg: &cam_dummy_reg {
|
|
};
|
|
|
|
/ {
|
|
__overrides__ {
|
|
act_led_gpio = <&act_led>,"gpios:4";
|
|
act_led_activelow = <&act_led>,"gpios:8";
|
|
act_led_trigger = <&act_led>,"linux,default-trigger";
|
|
|
|
pwr_led_gpio = <&pwr_led>,"gpios:4";
|
|
pwr_led_activelow = <&pwr_led>,"gpios:8";
|
|
pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
|
|
|
|
eth_led0 = <&phy1>,"led-modes:0";
|
|
eth_led1 = <&phy1>,"led-modes:4";
|
|
|
|
sd_poll_once = <&emmc2>, "non-removable?";
|
|
spi_dma4 = <&spi0>, "dmas:0=", <&dma40>,
|
|
<&spi0>, "dmas:8=", <&dma40>;
|
|
};
|
|
};
|