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, 173 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-1036-overlays-Rebuild-upstream-with-latest-ovmerge.patch b/target/linux/bcm27xx/patches-5.4/950-1036-overlays-Rebuild-upstream-with-latest-ovmerge.patch
new file mode 100644
index 0000000000..b2e32cd9aa
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-1036-overlays-Rebuild-upstream-with-latest-ovmerge.patch
@@ -0,0 +1,173 @@
+From 6091a6c5536f422df652c4a14725de7dd1fc5e0f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 30 Dec 2020 20:00:38 +0000
+Subject: [PATCH] overlays: Rebuild "upstream" with latest ovmerge
+
+The latest ovmerge drops disabled fragments, causing the "upstream"
+overlay to change.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../boot/dts/overlays/upstream-overlay.dts    | 38 +++++++------------
+ .../dts/overlays/upstream-pi4-overlay.dts     | 28 +-------------
+ 2 files changed, 15 insertions(+), 51 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/upstream-overlay.dts
++++ b/arch/arm/boot/dts/overlays/upstream-overlay.dts
+@@ -8,96 +8,84 @@
+ / {
+ 	compatible = "brcm,bcm2835";
+ 	fragment@0 {
+-		target = <&cma>;
+-		__dormant__ {
+-			size = <0x10000000>;
+-		};
+-	};
+-	fragment@1 {
+ 		target = <&i2c2>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@2 {
++	fragment@1 {
+ 		target = <&fb>;
+ 		__overlay__ {
+ 			status = "disabled";
+ 		};
+ 	};
+-	fragment@3 {
++	fragment@2 {
+ 		target = <&pixelvalve0>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@4 {
++	fragment@3 {
+ 		target = <&pixelvalve1>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@5 {
++	fragment@4 {
+ 		target = <&pixelvalve2>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@6 {
++	fragment@5 {
+ 		target = <&hvs>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@7 {
++	fragment@6 {
+ 		target = <&hdmi>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@8 {
++	fragment@7 {
+ 		target = <&v3d>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@9 {
++	fragment@8 {
+ 		target = <&vc4>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@10 {
++	fragment@9 {
+ 		target = <&clocks>;
+ 		__overlay__ {
+ 			claim-clocks = <BCM2835_PLLD_DSI0 BCM2835_PLLD_DSI1 BCM2835_PLLH_AUX BCM2835_PLLH_PIX>;
+ 		};
+ 	};
+-	fragment@11 {
++	fragment@10 {
+ 		target = <&vec>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@12 {
++	fragment@11 {
+ 		target = <&txp>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@13 {
+-		target = <&hdmi>;
+-		__dormant__ {
+-			dmas;
+-		};
+-	};
+-	fragment@14 {
++	fragment@12 {
+ 		target = <&audio>;
+ 		__overlay__ {
+ 			brcm,disable-hdmi;
+ 		};
+ 	};
+-	fragment@15 {
++	fragment@13 {
+ 		target = <&usb>;
+ 		#address-cells = <1>;
+ 		#size-cells = <1>;
+--- a/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
+@@ -110,42 +110,18 @@
+ 		};
+ 	};
+ 	fragment@17 {
+-		target = <&hdmi0>;
+-		__dormant__ {
+-			dmas;
+-		};
+-	};
+-	fragment@18 {
+-		target = <&hdmi1>;
+-		__dormant__ {
+-			dmas;
+-		};
+-	};
+-	fragment@19 {
+ 		target = <&audio>;
+ 		__overlay__ {
+ 			brcm,disable-hdmi;
+ 		};
+ 	};
+-	fragment@20 {
++	fragment@18 {
+ 		target = <&dvp>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@21 {
+-		target = <&pixelvalve3>;
+-		__dormant__ {
+-			status = "okay";
+-		};
+-	};
+-	fragment@22 {
+-		target = <&vec>;
+-		__dormant__ {
+-			status = "okay";
+-		};
+-	};
+-	fragment@23 {
++	fragment@19 {
+ 		target = <&usb>;
+ 		#address-cells = <1>;
+ 		#size-cells = <1>;