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, 176 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0784-SQUASH-dts-Fix-firmware-clocks-support.patch b/target/linux/bcm27xx/patches-5.4/950-0784-SQUASH-dts-Fix-firmware-clocks-support.patch
new file mode 100644
index 0000000000..35c2c4429c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0784-SQUASH-dts-Fix-firmware-clocks-support.patch
@@ -0,0 +1,176 @@
+From 10f7562d7ce7ea6fe6324df059c865ff660811fc Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 11 Jun 2020 16:34:00 +0100
+Subject: [PATCH] SQUASH: dts: Fix firmware clocks support
+
+Commit [1] touched a lot of files and still missed some platforms.
+In particular, Pi 2 was left with no clock scaling. Simplify the
+firmware clocks DTS support and extend it to all platforms that
+use the raspberrypi-cpufreq driver.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2709-rpi.dtsi         | 7 +++++++
+ arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts | 5 -----
+ arch/arm/boot/dts/bcm2710-rpi-3-b.dts      | 5 -----
+ arch/arm/boot/dts/bcm2710-rpi-cm3.dts      | 5 -----
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts      | 5 -----
+ arch/arm/boot/dts/bcm2711-rpi.dtsi         | 7 +++++++
+ arch/arm/boot/dts/bcm2836-rpi.dtsi         | 7 +++++++
+ arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts | 5 -----
+ arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 5 -----
+ arch/arm/boot/dts/bcm2837-rpi-3-b.dts      | 5 -----
+ arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi     | 5 -----
+ 11 files changed, 21 insertions(+), 40 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2709-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2709-rpi.dtsi
+@@ -3,3 +3,10 @@
+ &vchiq {
+ 	compatible = "brcm,bcm2836-vchiq", "brcm,bcm2835-vchiq";
+ };
++
++&firmware {
++	firmware_clocks: clocks {
++		compatible = "raspberrypi,firmware-clocks";
++		#clock-cells = <1>;
++	};
++};
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+@@ -85,11 +85,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: expgpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+@@ -96,11 +96,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: expgpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+--- a/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
+@@ -58,11 +58,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: expgpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -54,11 +54,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: gpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -170,3 +170,10 @@
+ &genet {
+ 	compatible = "brcm,bcm2711-genet-v5", "brcm,genet-v5";
+ };
++
++&firmware {
++	firmware_clocks: clocks {
++		compatible = "raspberrypi,firmware-clocks";
++		#clock-cells = <1>;
++	};
++};
+--- a/arch/arm/boot/dts/bcm2836-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2836-rpi.dtsi
+@@ -4,3 +4,10 @@
+ &vchiq {
+ 	compatible = "brcm,bcm2836-vchiq", "brcm,bcm2835-vchiq";
+ };
++
++&firmware {
++	firmware_clocks: clocks {
++		compatible = "raspberrypi,firmware-clocks";
++		#clock-cells = <1>;
++	};
++};
+--- a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
++++ b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+@@ -31,11 +31,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: gpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+@@ -37,11 +37,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: gpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
++++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+@@ -32,11 +32,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: gpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+--- a/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
++++ b/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
+@@ -35,11 +35,6 @@
+ };
+ 
+ &firmware {
+-	firmware_clocks: clocks {
+-		compatible = "raspberrypi,firmware-clocks";
+-		#clock-cells = <1>;
+-	};
+-
+ 	expgpio: gpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;