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>

1 files changed, 129 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-1039-overlays-add-wm8960-soundcard-overlay.patch b/target/linux/bcm27xx/patches-5.4/950-1039-overlays-add-wm8960-soundcard-overlay.patch
new file mode 100644
index 0000000000..fa2f54cacf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-1039-overlays-add-wm8960-soundcard-overlay.patch
@@ -0,0 +1,129 @@
+From 4b26aad69c65e141e7ad5187c558d20304eb4bd8 Mon Sep 17 00:00:00 2001
+From: Aaron Shaw <shawaj@gmail.com>
+Date: Sat, 2 Jan 2021 02:34:03 +0000
+Subject: [PATCH] overlays: add wm8960-soundcard overlay
+
+add overlay for waveshare wm8960 simple-audio-card
+
+Change-type: patch
+Signed-off-by: Aaron Shaw <shawaj@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  3 +-
+ arch/arm/boot/dts/overlays/README             |  7 ++
+ .../dts/overlays/wm8960-soundcard-overlay.dts | 82 +++++++++++++++++++
+ 3 files changed, 91 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm/boot/dts/overlays/wm8960-soundcard-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -210,7 +210,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	w1-gpio.dtbo \
+ 	w1-gpio-pullup.dtbo \
+ 	w5500.dtbo \
+-	wittypi.dtbo
++	wittypi.dtbo \
++	wm8960-soundcard.dtbo
+ 
+ targets += dtbs dtbs_install
+ targets += $(dtbo-y)
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -3073,6 +3073,13 @@ Params: led_gpio                GPIO for
+                                 "default-on")
+ 
+ 
++Name:   wm8960-soundcard
++Info:   Overlay for the Waveshare wm8960 soundcard
++Load:   dtoverlay=wm8960-soundcard,<param>=<val>
++Params: alsaname                Changes the card name in ALSA
++        compatible              Changes the codec compatibility
++
++
+ Troubleshooting
+ ===============
+ 
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/wm8960-soundcard-overlay.dts
+@@ -0,0 +1,82 @@
++// Definitions for Waveshare WM8960 https://github.com/waveshare/WM8960-Audio-HAT
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path="/";
++		__overlay__ {
++			wm8960_mclk: wm8960_mclk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <12288000>;
++			};
++		};
++	};
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8960: wm8960 {
++				compatible = "wlf,wm8960";
++				reg = <0x1a>;
++				#sound-dai-cells = <0>;
++				AVDD-supply = <&vdd_5v0_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++			};
++		};
++	};
++
++
++	fragment@3 {
++		target = <&sound>;
++		slave_overlay: __overlay__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,format = "i2s";
++			simple-audio-card,name = "wm8960-soundcard"; 
++			status = "okay";
++
++			simple-audio-card,widgets =
++				"Microphone", "Mic Jack",
++				"Line", "Line In",
++				"Line", "Line Out",
++				"Speaker", "Speaker",
++				"Headphone", "Headphone Jack";
++			simple-audio-card,routing =
++				"Headphone Jack", "HP_L",
++				"Headphone Jack", "HP_R",
++				"Speaker", "SPK_LP",
++				"Speaker", "SPK_LN",
++				"LINPUT1", "Mic Jack",
++				"LINPUT3", "Mic Jack",
++				"RINPUT1", "Mic Jack",
++				"RINPUT2", "Mic Jack";
++
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++			};
++			dailink0_slave: simple-audio-card,codec {
++				sound-dai = <&wm8960>;
++				clocks = <&wm8960_mclk>;
++				clock-names = "mclk";
++			};
++		};
++	};
++
++	__overrides__ {
++		alsaname = <&slave_overlay>,"simple-audio-card,name";
++		compatible = <&wm8960>,"compatible";
++	};
++};