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, 51 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0364-ARM-dts-bcm283x-Remove-simple-bus-from-fixed-clocks.patch b/target/linux/bcm27xx/patches-5.4/950-0364-ARM-dts-bcm283x-Remove-simple-bus-from-fixed-clocks.patch
new file mode 100644
index 0000000000..db90055343
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0364-ARM-dts-bcm283x-Remove-simple-bus-from-fixed-clocks.patch
@@ -0,0 +1,51 @@
+From 238506ebdea7a0bb928af8403287d5b0d71cdfee Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <wahrenst@gmx.net>
+Date: Fri, 16 Aug 2019 22:32:02 +0200
+Subject: [PATCH] ARM: dts: bcm283x: Remove simple-bus from fixed
+ clocks
+
+commit 4b2d24662126b1e2a6b95c9dfe9e9044e105e5bd upstream.
+
+The fixed clocks doesn't form some kind of bus. So let's remove it.
+This fixes the follow DT schema warnings:
+
+clocks: clock@3:reg:0: [3] is too short
+clocks: clock@4:reg:0: [4] is too short
+clocks: $nodename:0: 'clocks' does not match '^(bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'
+clocks: #size-cells:0:0: 0 is not one of [1, 2]
+clocks: 'ranges' is a required property
+clock@3: 'reg' does not match any of the regexes: 'pinctrl-[0-9]+'
+clock@4: 'reg' does not match any of the regexes: 'pinctrl-[0-9]+'
+
+Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
+---
+ arch/arm/boot/dts/bcm283x.dtsi | 10 ++--------
+ 1 file changed, 2 insertions(+), 8 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm283x.dtsi
++++ b/arch/arm/boot/dts/bcm283x.dtsi
+@@ -635,22 +635,16 @@
+ 	};
+ 
+ 	clocks {
+-		compatible = "simple-bus";
+-		#address-cells = <1>;
+-		#size-cells = <0>;
+-
+ 		/* The oscillator is the root of the clock tree. */
+-		clk_osc: clock@3 {
++		clk_osc: clk-osc {
+ 			compatible = "fixed-clock";
+-			reg = <3>;
+ 			#clock-cells = <0>;
+ 			clock-output-names = "osc";
+ 			clock-frequency = <19200000>;
+ 		};
+ 
+-		clk_usb: clock@4 {
++		clk_usb: clk-usb {
+ 			compatible = "fixed-clock";
+-			reg = <4>;
+ 			#clock-cells = <0>;
+ 			clock-output-names = "otg";
+ 			clock-frequency = <480000000>;