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>
(cherry-picked from commit f07e572f64)

1 files changed, 36 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-1032-overlays-mpu6050-Add-addr-parameter.patch b/target/linux/bcm27xx/patches-5.4/950-1032-overlays-mpu6050-Add-addr-parameter.patch
new file mode 100644
index 0000000000..543b07ad08
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-1032-overlays-mpu6050-Add-addr-parameter.patch
@@ -0,0 +1,36 @@
+From fcf08ed99d1421158ca913a7b6a4893c31ee1bd5 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 15 Dec 2020 17:02:17 +0000
+Subject: [PATCH] overlays: mpu6050: Add 'addr' parameter
+
+The mpu6050 starts up at address 0x68 by default, but can be set to
+0x69 if the ADO pin is pulled high. Give the overlay an addr parameter
+to allow devices at the alternate address to be used.
+
+See: https://github.com/Hexxeh/rpi-firmware/issues/252
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README              | 1 +
+ arch/arm/boot/dts/overlays/mpu6050-overlay.dts | 1 +
+ 2 files changed, 2 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1876,6 +1876,7 @@ Name:   mpu6050
+ Info:   Overlay for i2c connected mpu6050 imu
+ Load:   dtoverlay=mpu6050,<param>=<val>
+ Params: interrupt               GPIO pin for interrupt (default 4)
++        addr                    I2C address of the device (default 0x68)
+ 
+ 
+ Name:   mz61581
+--- a/arch/arm/boot/dts/overlays/mpu6050-overlay.dts
++++ b/arch/arm/boot/dts/overlays/mpu6050-overlay.dts
+@@ -24,5 +24,6 @@
+ 
+         __overrides__ {
+                 interrupt = <&mpu6050>,"interrupts:0";
++                addr = <&mpu6050>,"reg:0";
+         };
+ };