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, 334 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.15/950-0577-ARM-dts-Update-rpi-400-and-cm4-dts-to-match-4-b.patch b/target/linux/bcm27xx/patches-5.15/950-0577-ARM-dts-Update-rpi-400-and-cm4-dts-to-match-4-b.patch
new file mode 100644
index 0000000000..6aabb715dd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.15/950-0577-ARM-dts-Update-rpi-400-and-cm4-dts-to-match-4-b.patch
@@ -0,0 +1,334 @@
+From 34e658087e54db26ebd86f86a1549a393002a9ad Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 26 Nov 2021 15:20:06 +0000
+Subject: [PATCH] ARM: dts: Update rpi-400 and cm4 dts to match 4-b
+
+The Pi 4B dts file has had numerous updates since the Pi 400 and CM4
+dts files were written. Apply those updates to the other files to
+minimise the differences. The change is largely cosmetic, except for
+the PCI "device-type" to "device_type" rename, and the correction of
+the labels on the Pi 400 GPIO expander pins.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-400.dts | 90 ++++--------------------
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 98 ++++++---------------------
+ 2 files changed, 36 insertions(+), 152 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -1,9 +1,8 @@
+ // SPDX-License-Identifier: GPL-2.0
+ /dts-v1/;
+ #include "bcm2711.dtsi"
+-#include "bcm2835-rpi.dtsi"
+-
+-#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
++#include "bcm2711-rpi.dtsi"
++//#include "bcm283x-rpi-usb-peripheral.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,400", "brcm,bcm2711";
+@@ -14,19 +13,6 @@
+ 		stdout-path = "serial1:115200n8";
+ 	};
+ 
+-	/* Will be filled by the bootloader */
+-	memory@0 {
+-		device_type = "memory";
+-		reg = <0 0 0>;
+-	};
+-
+-	aliases {
+-		emmc2bus = &emmc2bus;
+-		ethernet0 = &genet;
+-		pcie0 = &pcie0;
+-		blconfig = &blconfig;
+-	};
+-
+ 	leds {
+ 		led-act {
+ 			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+@@ -54,8 +40,8 @@
+ 		regulator-always-on;
+ 		regulator-settling-time-us = <5000>;
+ 		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
+-		states = <1800000 0x1
+-			  3300000 0x0>;
++		states = <1800000 0x1>,
++			 <3300000 0x0>;
+ 		status = "okay";
+ 	};
+ 
+@@ -78,31 +64,15 @@
+ 	status = "okay";
+ };
+ 
+-&firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+-	expgpio: gpio {
+-		compatible = "raspberrypi,firmware-gpio";
+-		gpio-controller;
+-		#gpio-cells = <2>;
+-		gpio-line-names = "BT_ON",
+-				  "WL_ON",
+-				  "PWR_LED_OFF",
+-				  "GLOBAL_RESET",
+-				  "VDD_SD_IO_SEL",
+-				  "CAM_GPIO",
+-				  "SD_PWR_ON",
+-				  "SD_OC_N";
+-		status = "okay";
+-	};
+-
+-	reset: reset {
+-		compatible = "raspberrypi,firmware-reset";
+-		#reset-cells = <1>;
+-	};
++&expgpio {
++	gpio-line-names = "BT_ON",
++			  "WL_ON",
++			  "PWR_LED_OFF",
++			  "GLOBAL_RESET",
++			  "VDD_SD_IO_SEL",
++			  "GLOBAL_SHUTDOWN",
++			  "SD_PWR_ON",
++			  "SHUTDOWN_REQUEST";
+ };
+ 
+ &gpio {
+@@ -179,23 +149,13 @@
+ };
+ 
+ &hdmi0 {
+-	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
+-	clock-names = "hdmi", "bvb", "audio", "cec";
+-	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+ &hdmi1 {
+-	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
+-	clock-names = "hdmi", "bvb", "audio", "cec";
+-	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+-&hvs {
+-	clocks = <&firmware_clocks 4>;
+-};
+-
+ &pixelvalve0 {
+ 	status = "okay";
+ };
+@@ -218,22 +178,6 @@
+ 	status = "okay";
+ };
+ 
+-&rmem {
+-	/*
+-	 * RPi4's co-processor will copy the board's bootloader configuration
+-	 * into memory for the OS to consume. It'll also update this node with
+-	 * its placement information.
+-	 */
+-	blconfig: nvram@0 {
+-		compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
+-		#address-cells = <1>;
+-		#size-cells = <1>;
+-		reg = <0x0 0x0 0x0>;
+-		no-map;
+-		status = "disabled";
+-	};
+-};
+-
+ /* SDHCI is used to control the SDIO for wireless */
+ &sdhci {
+ 	#address-cells = <1>;
+@@ -274,7 +218,7 @@
+ 
+ &pcie0 {
+ 	pci@0,0 {
+-		device-type = "pci";
++		device_type = "pci";
+ 		#address-cells = <3>;
+ 		#size-cells = <2>;
+ 		ranges;
+@@ -282,7 +226,7 @@
+ 		reg = <0 0 0 0 0>;
+ 
+ 		usb@0,0 {
+-			reg = <0x0 0 0 0 0>;
++			reg = <0 0 0 0 0>;
+ 			resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
+ 		};
+ 	};
+@@ -309,10 +253,6 @@
+ 	status = "okay";
+ };
+ 
+-&vchiq {
+-	interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+-};
+-
+ &vc4 {
+ 	status = "okay";
+ };
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -1,9 +1,8 @@
+ // SPDX-License-Identifier: GPL-2.0
+ /dts-v1/;
+ #include "bcm2711.dtsi"
+-#include "bcm2835-rpi.dtsi"
+-
+-#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
++#include "bcm2711-rpi.dtsi"
++//#include "bcm283x-rpi-usb-peripheral.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,4-compute-module", "brcm,bcm2711";
+@@ -14,19 +13,6 @@
+ 		stdout-path = "serial1:115200n8";
+ 	};
+ 
+-	/* Will be filled by the bootloader */
+-	memory@0 {
+-		device_type = "memory";
+-		reg = <0 0 0>;
+-	};
+-
+-	aliases {
+-		emmc2bus = &emmc2bus;
+-		ethernet0 = &genet;
+-		pcie0 = &pcie0;
+-		blconfig = &blconfig;
+-	};
+-
+ 	leds {
+ 		led-act {
+ 			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+@@ -54,8 +40,8 @@
+ 		regulator-always-on;
+ 		regulator-settling-time-us = <5000>;
+ 		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
+-		states = <1800000 0x1
+-			  3300000 0x0>;
++		states = <1800000 0x1>,
++			 <3300000 0x0>;
+ 		status = "okay";
+ 	};
+ 
+@@ -78,42 +64,26 @@
+ 	status = "okay";
+ };
+ 
+-&firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+-	expgpio: gpio {
+-		compatible = "raspberrypi,firmware-gpio";
+-		gpio-controller;
+-		#gpio-cells = <2>;
+-		gpio-line-names = "BT_ON",
+-				  "WL_ON",
+-				  "PWR_LED_OFF",
+-				  "ANT1",
+-				  "VDD_SD_IO_SEL",
+-				  "CAM_GPIO",
+-				  "SD_PWR_ON",
+-				  "ANT2";
+-		status = "okay";
+-
+-		ant1: ant1 {
+-			gpio-hog;
+-			gpios = <3 GPIO_ACTIVE_HIGH>;
+-			output-high;
+-		};
+-
+-		ant2: ant2 {
+-			gpio-hog;
+-			gpios = <7 GPIO_ACTIVE_HIGH>;
+-			output-low;
+-		};
+-	};
+-
+-	reset: reset {
+-		compatible = "raspberrypi,firmware-reset";
+-		#reset-cells = <1>;
++&expgpio {
++	gpio-line-names = "BT_ON",
++			  "WL_ON",
++			  "PWR_LED_OFF",
++			  "ANT1",
++			  "VDD_SD_IO_SEL",
++			  "CAM_GPIO",
++			  "SD_PWR_ON",
++			  "ANT2";
++
++	ant1: ant1 {
++		gpio-hog;
++		gpios = <3 GPIO_ACTIVE_HIGH>;
++		output-high;
++	};
++
++	ant2: ant2 {
++		gpio-hog;
++		gpios = <7 GPIO_ACTIVE_HIGH>;
++		output-low;
+ 	};
+ };
+ 
+@@ -191,23 +161,13 @@
+ };
+ 
+ &hdmi0 {
+-	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
+-	clock-names = "hdmi", "bvb", "audio", "cec";
+-	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+ &hdmi1 {
+-	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
+-	clock-names = "hdmi", "bvb", "audio", "cec";
+-	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+-&hvs {
+-	clocks = <&firmware_clocks 4>;
+-};
+-
+ &pixelvalve0 {
+ 	status = "okay";
+ };
+@@ -230,22 +190,6 @@
+ 	status = "okay";
+ };
+ 
+-&rmem {
+-	/*
+-	 * RPi4's co-processor will copy the board's bootloader configuration
+-	 * into memory for the OS to consume. It'll also update this node with
+-	 * its placement information.
+-	 */
+-	blconfig: nvram@0 {
+-		compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
+-		#address-cells = <1>;
+-		#size-cells = <1>;
+-		reg = <0x0 0x0 0x0>;
+-		no-map;
+-		status = "disabled";
+-	};
+-};
+-
+ /* SDHCI is used to control the SDIO for wireless */
+ &sdhci {
+ 	#address-cells = <1>;