1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0472-ARM-dts-bcm271x-Use-a53-pmu-drop-RPI364.patch b/target/linux/bcm27xx/patches-5.4/950-0472-ARM-dts-bcm271x-Use-a53-pmu-drop-RPI364.patch
new file mode 100644
index 0000000000..9504bb3982
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0472-ARM-dts-bcm271x-Use-a53-pmu-drop-RPI364.patch
@@ -0,0 +1,67 @@
+From 70b0d5d07426e1b9c34ddd6ab4ee99b8c2fb81a6 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 19 Mar 2020 10:04:46 +0000
+Subject: [PATCH] ARM: dts: bcm271x: Use a53 pmu, drop RPI364
+
+The upstream bcm2837.dtsi uses cortex-a53-pmu, so we can do the same
+but with a fallback to the cortex-a7-pmu which is supported by the
+32-bit kernel.
+
+Now that we're using the natural fallback mechanism of compatible
+strings, the RPI364 macro no longer serves any purpose - remove it.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2710.dtsi                        | 6 +-----
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts      | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts      | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts      | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts      | 2 --
+ 6 files changed, 1 insertion(+), 15 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2710.dtsi
++++ b/arch/arm/boot/dts/bcm2710.dtsi
+@@ -5,11 +5,7 @@
+ 	compatible = "brcm,bcm2837", "brcm,bcm2836";
+ 
+ 	arm-pmu {
+-#ifdef RPI364
+-		compatible = "arm,armv8-pmuv3", "arm,cortex-a7-pmu";
+-#else
+-		compatible = "arm,cortex-a7-pmu";
+-#endif
++		compatible = "arm,cortex-a53-pmu", "arm,cortex-a7-pmu";
+ 	};
+ 
+ 	soc {
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-2-b.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-3-b-plus.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-3-b.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-cm3.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2711-rpi-4-b.dts"