bcm27xx: update to latest patches from RPi foundation

Also removes random module and switches to new bcm2711 thermal driver.
Boot tested on RPi 4B v1.1 4G.

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

1 files changed, 28 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0637-ARM-dts-bcm283x-Fix-vc4-s-firmware-bus-DMA-limitatio.patch b/target/linux/bcm27xx/patches-5.4/950-0637-ARM-dts-bcm283x-Fix-vc4-s-firmware-bus-DMA-limitatio.patch
new file mode 100644
index 0000000000..31840e5437
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0637-ARM-dts-bcm283x-Fix-vc4-s-firmware-bus-DMA-limitatio.patch
@@ -0,0 +1,28 @@
+From 142ad0b8433d6beb87070bd39a6b2d23ca9cae30 Mon Sep 17 00:00:00 2001
+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Date: Thu, 19 Mar 2020 20:00:13 +0100
+Subject: [PATCH] ARM: dts: bcm283x: Fix vc4's firmware bus DMA
+ limitations
+
+The bus is virtual and devices have to inherit their DMA constraints
+from the underlying interconnect. So add an empty dma-ranges property to
+the bus node, implying the firmware bus' DMA constraints are identical to
+its parent's.
+
+Fixes: 7dbe8c62ceeb ("ARM: dts: Add minimal Raspberry Pi 4 support")
+Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm2835-rpi.dtsi | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
+@@ -15,6 +15,7 @@
+ 		firmware: firmware {
+ 			compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
+ 			mboxes = <&mailbox>;
++			dma-ranges;
+ 		};
+ 
+ 		power: power {