bcm27xx: add support for linux v5.15

Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 387 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.15/950-0558-ARM-dts-Rename-Zero-2-W-DT-files.patch b/target/linux/bcm27xx/patches-5.15/950-0558-ARM-dts-Rename-Zero-2-W-DT-files.patch
new file mode 100644
index 0000000000..8918967d01
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.15/950-0558-ARM-dts-Rename-Zero-2-W-DT-files.patch
@@ -0,0 +1,387 @@
+From d29fb06a96cac4111d23e8f1cfc4d191d2fd5419 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 1 Nov 2021 15:44:31 +0000
+Subject: [PATCH] ARM: dts: Rename Zero 2 W DT files
+
+Retain the old names for backwards compatibility for a while, while the
+necessary firmware change rolls out.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/Makefile                 |   1 +
+ arch/arm/boot/dts/bcm2710-rpi-zero-2-w.dts | 177 ++++++++++++++++++++
+ arch/arm/boot/dts/bcm2710-rpi-zero-2.dts   | 178 +--------------------
+ 3 files changed, 179 insertions(+), 177 deletions(-)
+ create mode 100644 arch/arm/boot/dts/bcm2710-rpi-zero-2-w.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -8,6 +8,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
+ 	bcm2708-rpi-zero.dtb \
+ 	bcm2708-rpi-zero-w.dtb \
+ 	bcm2710-rpi-zero-2.dtb \
++	bcm2710-rpi-zero-2-w.dtb \
+ 	bcm2709-rpi-2-b.dtb \
+ 	bcm2710-rpi-2-b.dtb \
+ 	bcm2710-rpi-3-b.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2710-rpi-zero-2-w.dts
+@@ -0,0 +1,177 @@
++/dts-v1/;
++
++#include "bcm2710.dtsi"
++#include "bcm2709-rpi.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++#include "bcm2708-rpi-bt.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
++
++/ {
++	compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
++	model = "Raspberry Pi Zero 2 W";
++
++	chosen {
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
++	};
++
++	aliases {
++		serial0 = &uart1;
++		serial1 = &uart0;
++		mmc1 = &mmcnr;
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins =     <34 35 36 37 38 39>;
++		brcm,function = <7>; // alt3 = SD1
++		brcm,pull =     <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = <43>;
++		brcm,function = <4>; /* alt0:GPCLK2 */
++		brcm,pull = <0>;
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <30 31 32 33>;
++		brcm,function = <7>; /* alt3=UART0 */
++		brcm,pull = <2 0 0 2>; /* up none none up */
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <>;
++		brcm,function = <>;
++	};
++};
++
++&mmcnr {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&uart0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_pins>;
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: led-act {
++		label = "led0";
++		linux,default-trigger = "actpwr";
++		gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++	brcm,disable-headphones = <1>;
++};
++
++&bt {
++	shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
++};
++
++&minibt {
++	shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
++};
++
++&cam1_reg {
++	gpio = <&gpio 40 GPIO_ACTIVE_HIGH>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++	};
++};
+--- a/arch/arm/boot/dts/bcm2710-rpi-zero-2.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-zero-2.dts
+@@ -1,177 +1 @@
+-/dts-v1/;
+-
+-#include "bcm2710.dtsi"
+-#include "bcm2709-rpi.dtsi"
+-#include "bcm283x-rpi-csi1-2lane.dtsi"
+-#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
+-#include "bcm2708-rpi-bt.dtsi"
+-#include "bcm283x-rpi-cam1-regulator.dtsi"
+-
+-/ {
+-	compatible = "raspberrypi,model-zero-2", "brcm,bcm2837";
+-	model = "Raspberry Pi Zero 2";
+-
+-	chosen {
+-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+-	};
+-
+-	aliases {
+-		serial0 = &uart1;
+-		serial1 = &uart0;
+-		mmc1 = &mmcnr;
+-	};
+-};
+-
+-&gpio {
+-	spi0_pins: spi0_pins {
+-		brcm,pins = <9 10 11>;
+-		brcm,function = <4>; /* alt0 */
+-	};
+-
+-	spi0_cs_pins: spi0_cs_pins {
+-		brcm,pins = <8 7>;
+-		brcm,function = <1>; /* output */
+-	};
+-
+-	i2c0_pins: i2c0 {
+-		brcm,pins = <0 1>;
+-		brcm,function = <4>;
+-	};
+-
+-	i2c1_pins: i2c1 {
+-		brcm,pins = <2 3>;
+-		brcm,function = <4>;
+-	};
+-
+-	i2s_pins: i2s {
+-		brcm,pins = <18 19 20 21>;
+-		brcm,function = <4>; /* alt0 */
+-	};
+-
+-	sdio_pins: sdio_pins {
+-		brcm,pins =     <34 35 36 37 38 39>;
+-		brcm,function = <7>; // alt3 = SD1
+-		brcm,pull =     <0 2 2 2 2 2>;
+-	};
+-
+-	bt_pins: bt_pins {
+-		brcm,pins = <43>;
+-		brcm,function = <4>; /* alt0:GPCLK2 */
+-		brcm,pull = <0>;
+-	};
+-
+-	uart0_pins: uart0_pins {
+-		brcm,pins = <30 31 32 33>;
+-		brcm,function = <7>; /* alt3=UART0 */
+-		brcm,pull = <2 0 0 2>; /* up none none up */
+-	};
+-
+-	uart1_pins: uart1_pins {
+-		brcm,pins;
+-		brcm,function;
+-		brcm,pull;
+-	};
+-
+-	audio_pins: audio_pins {
+-		brcm,pins = <>;
+-		brcm,function = <>;
+-	};
+-};
+-
+-&mmcnr {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&sdio_pins>;
+-	bus-width = <4>;
+-	status = "okay";
+-};
+-
+-&uart0 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&uart0_pins &bt_pins>;
+-	status = "okay";
+-};
+-
+-&uart1 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&uart1_pins>;
+-	status = "okay";
+-};
+-
+-&spi0 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
+-	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
+-
+-	spidev0: spidev@0{
+-		compatible = "spidev";
+-		reg = <0>;	/* CE0 */
+-		#address-cells = <1>;
+-		#size-cells = <0>;
+-		spi-max-frequency = <125000000>;
+-	};
+-
+-	spidev1: spidev@1{
+-		compatible = "spidev";
+-		reg = <1>;	/* CE1 */
+-		#address-cells = <1>;
+-		#size-cells = <0>;
+-		spi-max-frequency = <125000000>;
+-	};
+-};
+-
+-&i2c0if {
+-	clock-frequency = <100000>;
+-};
+-
+-&i2c1 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&i2c1_pins>;
+-	clock-frequency = <100000>;
+-};
+-
+-&i2c2 {
+-	clock-frequency = <100000>;
+-};
+-
+-&i2s {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&i2s_pins>;
+-};
+-
+-&leds {
+-	act_led: led-act {
+-		label = "led0";
+-		linux,default-trigger = "actpwr";
+-		gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
+-	};
+-};
+-
+-&hdmi {
+-	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
+-};
+-
+-&audio {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&audio_pins>;
+-	brcm,disable-headphones = <1>;
+-};
+-
+-&bt {
+-	shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+-};
+-
+-&minibt {
+-	shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+-};
+-
+-&cam1_reg {
+-	gpio = <&gpio 40 GPIO_ACTIVE_HIGH>;
+-};
+-
+-/ {
+-	__overrides__ {
+-		act_led_gpio = <&act_led>,"gpios:4";
+-		act_led_activelow = <&act_led>,"gpios:8";
+-		act_led_trigger = <&act_led>,"linux,default-trigger";
+-	};
+-};
++#include "bcm2710-rpi-zero-2-w.dts"