mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
3d2cbb6448
Depending on bcm2711's revision its emmc2 controller might have different DMA constraints. Raspberry Pi 4's firmware will take care of updating those, but only if a certain alias is found in the device tree. So, move emmc2 into its own bus, so as not to pollute other devices with dma-ranges changes and create the emmc2bus alias. Based in Phil ELwell's downstream implementation. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200304132437.20164-1-nsaenzjulienne@suse.de
215 lines
3.8 KiB
Plaintext
215 lines
3.8 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 "bcm283x-rpi-usb-peripheral.dtsi"
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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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};
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leds {
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act {
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gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
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};
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pwr {
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label = "PWR";
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gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
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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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};
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&firmware {
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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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"",
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"";
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status = "okay";
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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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&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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/* 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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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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/* 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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