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, 339 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-1028-overlays-Add-PCF85063-and-PCF85063A-to-i2c-rtc.patch b/target/linux/bcm27xx/patches-5.4/950-1028-overlays-Add-PCF85063-and-PCF85063A-to-i2c-rtc.patch
new file mode 100644
index 0000000000..f55f9f6836
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-1028-overlays-Add-PCF85063-and-PCF85063A-to-i2c-rtc.patch
@@ -0,0 +1,339 @@
+From ecfd415e5ae3fc05bf0c2b16a80f1d3e00447896 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 7 Dec 2020 08:49:53 +0000
+Subject: [PATCH] overlays: Add PCF85063 and PCF85063A to i2c-rtc
+
+Add support for the PCF85063 and PCF85063A RTC devices to the
+i2c-rtc overlay.
+
+Also enable the device to be used on i2c0 (i2c_vc) on GPIOs 0&1 (use
+parameter "i2c0") and GPIOs 44 & 45 (use parameter "i2c_csi_dsi").
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README             |  8 ++
+ .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 98 ++++++++++---------
+ 2 files changed, 61 insertions(+), 45 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1243,6 +1243,10 @@ Params: abx80x                  Select o
+ 
+         pcf2129                 Select the PCF2129 device
+ 
++        pcf85063                Select the PCF85363 device
++
++        pcf85063a               Select the PCF85363A device
++
+         pcf8523                 Select the PCF8523 device
+ 
+         pcf85363                Select the PCF85363 device
+@@ -1255,6 +1259,10 @@ Params: abx80x                  Select o
+ 
+         sd3078                  Select the ZXW Shenzhen whwave SD3078 device
+ 
++        i2c0                    Choose the I2C0 bus on GPIOs 0&1
++
++        i2c_csi_dsi             Choose the I2C0 bus on GPIOs 44&45
++
+         addr                    Sets the address for the RTC. Note that the
+                                 device must be configured to use the specified
+                                 address.
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+@@ -6,235 +6,238 @@
+ 	compatible = "brcm,bcm2835";
+ 
+ 	fragment@0 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			abx80x: abx80x@69 {
+ 				compatible = "abracon,abx80x";
+ 				reg = <0x69>;
+ 				abracon,tc-diode = "standard";
+ 				abracon,tc-resistor = <0>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@1 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			ds1307: ds1307@68 {
+ 				compatible = "dallas,ds1307";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@2 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			ds1339: ds1339@68 {
+ 				compatible = "dallas,ds1339";
+ 				trickle-resistor-ohms = <0>;
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@3 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			ds3231: ds3231@68 {
+ 				compatible = "maxim,ds3231";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@4 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			mcp7940x: mcp7940x@6f {
+ 				compatible = "microchip,mcp7940x";
+ 				reg = <0x6f>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@5 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			mcp7941x: mcp7941x@6f {
+ 				compatible = "microchip,mcp7941x";
+ 				reg = <0x6f>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@6 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf2127@51 {
+ 				compatible = "nxp,pcf2127";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@7 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf8523: pcf8523@68 {
+ 				compatible = "nxp,pcf8523";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@8 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf8563: pcf8563@51 {
+ 				compatible = "nxp,pcf8563";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@9 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			m41t62: m41t62@68 {
+ 				compatible = "st,m41t62";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@10 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			rv3028: rv3028@52 {
+ 				compatible = "microcrystal,rv3028";
+ 				reg = <0x52>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@11 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf2129@51 {
+ 				compatible = "nxp,pcf2129";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@12 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 	       __dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf85363@51 {
+ 				compatible = "nxp,pcf85363";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@13 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			rv1805: rv1805@69 {
+ 				compatible = "microcrystal,rv1805";
+ 				reg = <0x69>;
+ 				abracon,tc-diode = "standard";
+ 				abracon,tc-resistor = <0>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@14 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			sd3078: sd3078@32 {
+ 				compatible = "whwave,sd3078";
+ 				reg = <0x32>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
++	fragment@15 {
++		target = <&i2cbus>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf85063@51 {
++				compatible = "nxp,pcf85063";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@16 {
++		target = <&i2cbus>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf85063a@51 {
++				compatible = "nxp,pcf85063a";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	frag100: fragment@100 {
++		target = <&i2c_arm>;
++		i2cbus: __overlay__ {
++			status = "okay";
++		};
++	};
++
+ 	__overrides__ {
+ 		abx80x = <0>,"+0";
+ 		ds1307 = <0>,"+1";
+@@ -251,6 +254,11 @@
+ 		pcf85363 = <0>,"+12";
+ 		rv1805 = <0>,"+13";
+ 		sd3078 = <0>,"+14";
++		pcf85063 = <0>,"+15";
++		pcf85063a = <0>,"+16";
++
++		i2c0 = <&frag100>, "target:0=",<&i2c0>;
++		i2c_csi_dsi = <&frag100>, "target:0=",<&i2c_csi_dsi>;
+ 
+ 		addr = <&abx80x>, "reg:0",
+ 		       <&ds1307>, "reg:0",