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ARM: dts: Add Raspberry Pi Compute Module 4

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The Raspberry Pi Compute Module 4 (CM4) are SoMs which contain the
following:
  * BCM2711 quad core processor
  * up to 8 GB RAM
  * up to 32 GB eMMC
  * a GPIO expander
  * Gigabit PHY BCM54210PE
  * Wifi/BT module with internal and external antenna

The eMMC and the Wifi/BT module are optional.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1628334401-6577-9-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
This commit is contained in:
Stefan Wahren
2021-08-07 13:06:39 +02:00
committed by Nicolas Saenz Julienne
parent 09ce63ec33
commit d1b2237b28
1 changed files with 113 additions and 0 deletions
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113
arch/arm/boot/dts/bcm2711-rpi-cm4.dtsi Normal file
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// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include "bcm2711.dtsi"
#include "bcm2711-rpi.dtsi"
#include "bcm283x-rpi-wifi-bt.dtsi"
/ {
compatible = "raspberrypi,4-compute-module", "brcm,bcm2711";
chosen {
/* 8250 auxiliary UART instead of pl011 */
stdout-path = "serial1:115200n8";
};
sd_io_1v8_reg: sd_io_1v8_reg {
compatible = "regulator-gpio";
regulator-name = "vdd-sd-io";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
regulator-settling-time-us = <5000>;
gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
states = <1800000 0x1>,
<3300000 0x0>;
status = "okay";
};
sd_vcc_reg: sd_vcc_reg {
compatible = "regulator-fixed";
regulator-name = "vcc-sd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
enable-active-high;
gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
};
};
&bt {
shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
};
/* EMMC2 is used to drive the eMMC */
&emmc2 {
bus-width = <8>;
vqmmc-supply = <&sd_io_1v8_reg>;
vmmc-supply = <&sd_vcc_reg>;
broken-cd;
/* Even the IP block is limited to 100 MHz
* this provides a throughput gain
*/
mmc-hs200-1_8v;
status = "okay";
};
&expgpio {
gpio-line-names = "BT_ON",
"WL_ON",
"PWR_LED_OFF",
"ANT1",
"VDD_SD_IO_SEL",
"CAM_GPIO",
"SD_PWR_ON",
"ANT2";
ant1: ant1-hog {
gpio-hog;
gpios = <3 GPIO_ACTIVE_HIGH>;
/* internal antenna enabled */
output-high;
line-name = "ant1";
};
ant2: ant2-hog {
gpio-hog;
gpios = <7 GPIO_ACTIVE_HIGH>;
/* external antenna disabled */
output-low;
line-name = "ant2";
};
};
&genet {
phy-handle = <&phy1>;
phy-mode = "rgmii-rxid";
status = "okay";
};
&genet_mdio {
phy1: ethernet-phy@0 {
/* No PHY interrupt */
reg = <0x0>;
};
};
/* uart0 communicates with the BT module */
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
uart-has-rtscts;
};
/* uart1 is mapped to the pin header */
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&uart1_gpio14>;
status = "okay";
};
&wifi_pwrseq {
reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
};