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, 29 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0405-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch b/target/linux/bcm27xx/patches-5.4/950-0405-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch
new file mode 100644
index 0000000000..2f5d87b004
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0405-bcm2838.dtsi-Use-BCM2711-PCIe-compatible-string.patch
@@ -0,0 +1,29 @@
+From 8be8dc74799fe7c0e09dfa53aa41e954ffba291c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 12 Jul 2019 11:43:03 +0100
+Subject: [PATCH] bcm2838.dtsi: Use BCM2711 PCIe compatible string
+
+The BCM2711 PCIe controller has a limited address range in the B0
+silicon, and the driver uses a compatible string to identify the
+limitation. The current Pi 4 firmware will override the compatible
+string if it detects a downstream DTB and it is running on a newer
+revision but set the default value to enable the workaround for
+backwards-compatibility with old firmware.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/bcm2838.dtsi | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/bcm2838.dtsi
++++ b/arch/arm/boot/dts/bcm2838.dtsi
+@@ -314,7 +314,8 @@
+ 			#interrupt-cells = <1>;
+ 			#size-cells = <2>;
+ 			bus-range = <0x0 0x01>;
+-			compatible = "brcm,bcm7211-pcie", "brcm,bcm7445-pcie",
++			compatible = "brcm,bcm2711b0-pcie", // Safe value
++				     "brcm,bcm2711-pcie",
+ 				     "brcm,pci-plat-dev";
+ 			max-link-speed = <2>;
+ 			tot-num-pcie = <1>;