bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

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

1 files changed, 162 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0401-ARM-dts-Remove-bcm2838-rpi-4-b.dts.patch b/target/linux/bcm27xx/patches-5.4/950-0401-ARM-dts-Remove-bcm2838-rpi-4-b.dts.patch
new file mode 100644
index 0000000000..10c5d23b46
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0401-ARM-dts-Remove-bcm2838-rpi-4-b.dts.patch
@@ -0,0 +1,162 @@
+From 3c099a50b3d609206a86896405cfdc8a94cd7aa4 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 29 Jan 2020 11:29:06 +0000
+Subject: [PATCH] ARM: dts: Remove bcm2838-rpi-4-b.dts
+
+Upstream are not going to use the bcm2838 identifier, so begin the
+cleanup by removing the suggested upstream Pi 4 .dts file.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/Makefile            |   1 -
+ arch/arm/boot/dts/bcm2838-rpi-4-b.dts | 134 --------------------------
+ 2 files changed, 135 deletions(-)
+ delete mode 100644 arch/arm/boot/dts/bcm2838-rpi-4-b.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -97,7 +97,6 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
+ 	bcm2837-rpi-3-b.dtb \
+ 	bcm2837-rpi-3-b-plus.dtb \
+ 	bcm2837-rpi-cm3-io3.dtb \
+-	bcm2838-rpi-4-b.dtb \
+ 	bcm2835-rpi-zero.dtb \
+ 	bcm2835-rpi-zero-w.dtb
+ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+--- a/arch/arm/boot/dts/bcm2838-rpi-4-b.dts
++++ /dev/null
+@@ -1,134 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/dts-v1/;
+-#include "bcm2838.dtsi"
+-#include "bcm2835-rpi.dtsi"
+-#include "bcm2838-rpi.dtsi"
+-
+-/ {
+-	compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
+-	model = "Raspberry Pi 4 Model B";
+-
+-	chosen {
+-		/* 8250 auxiliary UART instead of pl011 */
+-		stdout-path = "serial1:115200n8";
+-	};
+-
+-	memory@0 {
+-		device_type = "memory";
+-		reg = <0x0 0x0 0x0>;
+-	};
+-
+-	leds {
+-		act {
+-			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+-		};
+-
+-		pwr {
+-			label = "PWR";
+-			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+-		};
+-	};
+-
+-	wifi_pwrseq: wifi-pwrseq {
+-		compatible = "mmc-pwrseq-simple";
+-		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+-	};
+-
+-	sd_io_1v8_reg: sd_io_1v8_reg {
+-		status = "okay";
+-		compatible = "regulator-gpio";
+-		vin-supply = <&vdd_5v0_reg>;
+-		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>;
+-	};
+-};
+-
+-&firmware {
+-	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",
+-				  "",
+-				  "";
+-		status = "okay";
+-	};
+-};
+-
+-&pwm1 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
+-	status = "okay";
+-};
+-
+-/* SDHCI is used to control the SDIO for wireless */
+-&sdhci {
+-	#address-cells = <1>;
+-	#size-cells = <0>;
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&emmc_gpio34>;
+-	status = "okay";
+-	bus-width = <4>;
+-	non-removable;
+-	mmc-pwrseq = <&wifi_pwrseq>;
+-
+-	brcmf: wifi@1 {
+-		reg = <1>;
+-		compatible = "brcm,bcm4329-fmac";
+-	};
+-};
+-
+-/* EMMC2 is used to drive the SD card */
+-&emmc2 {
+-	status = "okay";
+-	broken-cd;
+-	vqmmc-supply = <&sd_io_1v8_reg>;
+-};
+-
+-&genet {
+-	phy-handle = <&phy1>;
+-	phy-mode = "rgmii-rxid";
+-	status = "okay";
+-};
+-
+-&genet_mdio {
+-	phy1: ethernet-phy@1 {
+-		/* No PHY interrupt */
+-		reg = <0x1>;
+-		led-modes = <0x00 0x08>; /* link/activity link */
+-	};
+-};
+-
+-/* uart0 communicates with the BT module */
+-&uart0 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
+-	uart-has-rtscts;
+-	status = "okay";
+-
+-	bluetooth {
+-		compatible = "brcm,bcm43438-bt";
+-		max-speed = <2000000>;
+-		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
+-	};
+-};
+-
+-/* uart1 is mapped to the pin header */
+-&uart1 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&uart1_gpio14>;
+-	status = "okay";
+-};