Merge tag 'arm-soc/for-5.18/devicetree' of https://github.com/Broadcom/stblinux into arm/dt

This pull request contains Broadcom ARM-based SoCs Device Tree changes
for 5.18, please pull the following:

- Arinc defines the switch ports of the RTL8365MB switch on the Asus
  RT-AC88U

- Richard provides cache information for the BCM2835/36/37 and BCM2711
  SoCs such that tools like "lscpu -C" can report it when supported

- Stefan adds support for the Raspberry Pi Zero 2 W (wireless)

- Matthew defines the MAC address NVMEM cells for the Cisco Meraki
  MX64/MX65 devices, he also fixes the LED for these platforms.

- Rafal adds the MAC addres NVMEM cell for the Luxul XWR-3150

* tag 'arm-soc/for-5.18/devicetree' of https://github.com/Broadcom/stblinux:
  ARM: dts: BCM5301X: Add Ethernet MAC address to Luxul XWR-3150
  ARM: dts: NSP: MX6X: correct LED function types
  ARM: dts: NSP: MX6X: get mac-address from eeprom
  arm64: dts: broadcom: Add reference to RPi Zero 2 W
  ARM: dts: Add Raspberry Pi Zero 2 W
  dt-bindings: arm: bcm2835: Add Raspberry Pi Zero 2 W
  ARM: dts: bcm2835/6: Add the missing L1/L2 cache information
  ARM: dts: bcm2711: Add the missing L1/L2 cache information
  ARM: dts: bcm2837: Add the missing L1/L2 cache information
  ARM: dts: BCM5301X: define RTL8365MB switch on Asus RT-AC88U

Link: https://lore.kernel.org/r/20220307194817.3754107-2-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml

@@ -51,6 +51,7 @@ properties:
               - raspberrypi,3-model-b-plus
               - raspberrypi,3-compute-module
               - raspberrypi,3-compute-module-lite
+              - raspberrypi,model-zero-2-w
           - const: brcm,bcm2837
 
 additionalProperties: true

arch/arm/boot/dts/Makefile

@@ -93,6 +93,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
 	bcm2837-rpi-3-b.dtb \
 	bcm2837-rpi-3-b-plus.dtb \
 	bcm2837-rpi-cm3-io3.dtb \
+	bcm2837-rpi-zero-2-w.dtb \
 	bcm2711-rpi-400.dtb \
 	bcm2711-rpi-4-b.dtb \
 	bcm2711-rpi-cm4-io.dtb \

arch/arm/boot/dts/bcm2711.dtsi

@@ -458,12 +458,26 @@
 		#size-cells = <0>;
 		enable-method = "brcm,bcm2836-smp"; // for ARM 32-bit
 
+		/* Source for d/i-cache-line-size and d/i-cache-sets
+		 * https://developer.arm.com/documentation/100095/0003
+		 * /Level-1-Memory-System/About-the-L1-memory-system?lang=en
+		 * Source for d/i-cache-size
+		 * https://www.raspberrypi.com/documentation/computers
+		 * /processors.html#bcm2711
+		 */
 		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a72";
 			reg = <0>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000d8>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 48KiB(size)/64(line-size)=768ways/3-way set
+			next-level-cache = <&l2>;
 		};
 
 		cpu1: cpu@1 {
@@ -472,6 +486,13 @@
 			reg = <1>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000e0>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 48KiB(size)/64(line-size)=768ways/3-way set
+			next-level-cache = <&l2>;
 		};
 
 		cpu2: cpu@2 {
@@ -480,6 +501,13 @@
 			reg = <2>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000e8>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 48KiB(size)/64(line-size)=768ways/3-way set
+			next-level-cache = <&l2>;
 		};
 
 		cpu3: cpu@3 {
@@ -488,6 +516,28 @@
 			reg = <3>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000f0>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 48KiB(size)/64(line-size)=768ways/3-way set
+			next-level-cache = <&l2>;
+		};
+
+		/* Source for d/i-cache-line-size and d/i-cache-sets
+		 *  https://developer.arm.com/documentation/100095/0003
+		 *  /Level-2-Memory-System/About-the-L2-memory-system?lang=en
+		 *  Source for d/i-cache-size
+		 *  https://www.raspberrypi.com/documentation/computers
+		 *  /processors.html#bcm2711
+		 */
+		l2: l2-cache0 {
+			compatible = "cache";
+			cache-size = <0x100000>;
+			cache-line-size = <64>;
+			cache-sets = <1024>; // 1MiB(size)/64(line-size)=16384ways/16-way set
+			cache-level = <2>;
 		};
 	};
 

arch/arm/boot/dts/bcm2835.dtsi

@@ -14,6 +14,23 @@
 			device_type = "cpu";
 			compatible = "arm,arm1176jzf-s";
 			reg = <0x0>;
+			/* Source for d/i-cache-line-size and d/i-cache-sets
+			 * https://developer.arm.com/documentation/ddi0301
+			 * /h/level-one-memory-system/cache-organization?lang=en
+			 *
+			 * Source for d/i-cache-size
+			 * https://forums.raspberrypi.com/viewtopic.php?t=98428
+			 *
+			 * NOTE: The BCM2835 has a L2 cache but it is dedicated to the GPU
+			 * It can be shared with the CPU through fw settings,
+			 * but this is not recommended.
+			 */
+			d-cache-size = <0x4000>;
+			d-cache-line-size = <16>;
+			d-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set
+			i-cache-size = <0x4000>;
+			i-cache-line-size = <16>;
+			i-cache-sets = <256>; // 16KiB(size)/16(line-size)=1024ways/4-way set
 		};
 	};
 

arch/arm/boot/dts/bcm2836.dtsi

@@ -41,11 +41,26 @@
 		#size-cells = <0>;
 		enable-method = "brcm,bcm2836-smp";
 
+		/* Source for d/i-cache-line-size and d/i-cache-sets
+		 * https://developer.arm.com/documentation/ddi0464/f/L1-Memory-System
+		 * /About-the-L1-memory-system?lang=en
+		 *
+		 * Source for d/i-cache-size
+		 * https://forums.raspberrypi.com/viewtopic.php?t=98428
+		 */
+
 		v7_cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a7";
 			reg = <0xf00>;
 			clock-frequency = <800000000>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <32>;
+			i-cache-sets = <512>; // 32KiB(size)/32(line-size)=1024ways/2-way set
+			next-level-cache = <&l2>;
 		};
 
 		v7_cpu1: cpu@1 {
@@ -53,6 +68,13 @@
 			compatible = "arm,cortex-a7";
 			reg = <0xf01>;
 			clock-frequency = <800000000>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <32>;
+			i-cache-sets = <512>; // 32KiB(size)/32(line-size)=1024ways/2-way set
+			next-level-cache = <&l2>;
 		};
 
 		v7_cpu2: cpu@2 {
@@ -60,6 +82,13 @@
 			compatible = "arm,cortex-a7";
 			reg = <0xf02>;
 			clock-frequency = <800000000>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <32>;
+			i-cache-sets = <512>; // 32KiB(size)/32(line-size)=1024ways/2-way set
+			next-level-cache = <&l2>;
 		};
 
 		v7_cpu3: cpu@3 {
@@ -67,6 +96,27 @@
 			compatible = "arm,cortex-a7";
 			reg = <0xf03>;
 			clock-frequency = <800000000>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <32>;
+			i-cache-sets = <512>; // 32KiB(size)/32(line-size)=1024ways/2-way set
+			next-level-cache = <&l2>;
+		};
+
+		/* Source for cache-line-size + cache-sets
+		 * https://developer.arm.com/documentation/ddi0464/f/L2-Memory-System
+		 * /About-the-L2-Memory-system?lang=en
+		 * Source for cache-size
+		 * https://forums.raspberrypi.com/viewtopic.php?t=98428
+		 */
+		l2: l2-cache0 {
+			compatible = "cache";
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-sets = <1024>; // 512KiB(size)/64(line-size)=8192ways/8-way set
+			cache-level = <2>;
 		};
 	};
 };

arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts

@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022 Stefan Wahren <stefan.wahren@i2se.com>
+ */
+
+/dts-v1/;
+#include "bcm2837.dtsi"
+#include "bcm2836-rpi.dtsi"
+#include "bcm283x-rpi-usb-otg.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
+
+/ {
+	compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
+	model = "Raspberry Pi Zero 2 W";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0 0x20000000>;
+	};
+
+	chosen {
+		/* 8250 auxiliary UART instead of pl011 */
+		stdout-path = "serial1:115200n8";
+	};
+
+	leds {
+		led-act {
+			gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&bt {
+	shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+};
+
+&gpio {
+	/*
+	 * This is based on the official GPU firmware DT blob.
+	 *
+	 * Legend:
+	 * "NC" = not connected (no rail from the SoC)
+	 * "FOO" = GPIO line named "FOO" on the schematic
+	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
+	 */
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
+			  "SDA1",
+			  "SCL1",
+			  "GPIO_GCLK",
+			  "GPIO5",
+			  "GPIO6",
+			  "SPI_CE1_N",
+			  "SPI_CE0_N",
+			  "SPI_MISO",
+			  "SPI_MOSI",
+			  "SPI_SCLK",
+			  "GPIO12",
+			  "GPIO13",
+			  /* Serial port */
+			  "TXD0",
+			  "RXD0",
+			  "GPIO16",
+			  "GPIO17",
+			  "GPIO18",
+			  "GPIO19",
+			  "GPIO20",
+			  "GPIO21",
+			  "GPIO22",
+			  "GPIO23",
+			  "GPIO24",
+			  "GPIO25",
+			  "GPIO26",
+			  "GPIO27",
+			  "HDMI_HPD_N",
+			  "STATUS_LED_N",
+			  "NC", /* GPIO30 */
+			  "NC", /* GPIO31 */
+			  "NC", /* GPIO32 */
+			  "NC", /* GPIO33 */
+			  "NC", /* GPIO34 */
+			  "NC", /* GPIO35 */
+			  "NC", /* GPIO36 */
+			  "NC", /* GPIO37 */
+			  "NC", /* GPIO38 */
+			  "NC", /* GPIO39 */
+			  "CAM_GPIO0", /* GPIO40 */
+			  "WL_ON", /* GPIO41 */
+			  "BT_ON", /* GPIO42 */
+			  "WIFI_CLK", /* GPIO43 */
+			  "SDA0", /* GPIO44 */
+			  "SCL0", /* GPIO45 */
+			  "SMPS_SCL",
+			  "SMPS_SDA",
+			  /* Used by SD Card */
+			  "SD_CLK_R",
+			  "SD_CMD_R",
+			  "SD_DATA0_R",
+			  "SD_DATA1_R",
+			  "SD_DATA2_R",
+			  "SD_DATA3_R";
+
+	pinctrl-0 = <&gpioout &alt0>;
+};
+
+&hdmi {
+	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
+	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
+	status = "okay";
+};
+
+&sdhci {
+	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
+};
+
+&sdhost {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhost_gpio48>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_gpio14>;
+	status = "okay";
+};
+
+&wifi_pwrseq {
+	reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
+};

arch/arm/boot/dts/bcm2837.dtsi

@@ -40,12 +40,26 @@
 		#size-cells = <0>;
 		enable-method = "brcm,bcm2836-smp"; // for ARM 32-bit
 
+		/* Source for d/i-cache-line-size and d/i-cache-sets
+		 * https://developer.arm.com/documentation/ddi0500/e/level-1-memory-system
+		 * /about-the-l1-memory-system?lang=en
+		 *
+		 * Source for d/i-cache-size
+		 * https://magpi.raspberrypi.com/articles/raspberry-pi-3-specs-benchmarks
+		 */
 		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53";
 			reg = <0>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000d8>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			next-level-cache = <&l2>;
 		};
 
 		cpu1: cpu@1 {
@@ -54,6 +68,13 @@
 			reg = <1>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000e0>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			next-level-cache = <&l2>;
 		};
 
 		cpu2: cpu@2 {
@@ -62,6 +83,13 @@
 			reg = <2>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000e8>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			next-level-cache = <&l2>;
 		};
 
 		cpu3: cpu@3 {
@@ -70,6 +98,27 @@
 			reg = <3>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x000000f0>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+			next-level-cache = <&l2>;
+		};
+
+		/* Source for cache-line-size + cache-sets
+		 * https://developer.arm.com/documentation/ddi0500
+		 * /e/level-2-memory-system/about-the-l2-memory-system?lang=en
+		 * Source for cache-size
+		 * https://datasheets.raspberrypi.com/cm/cm1-and-cm3-datasheet.pdf
+		 */
+		l2: l2-cache0 {
+			compatible = "cache";
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-sets = <512>; // 512KiB(size)/64(line-size)=8192ways/16-way set
+			cache-level = <2>;
 		};
 	};
 };

arch/arm/boot/dts/bcm47094-asus-rt-ac88u.dts

@@ -93,6 +93,82 @@
 			gpios = <&chipcommon 4 GPIO_ACTIVE_LOW>;
 		};
 	};
+
+	switch {
+		compatible = "realtek,rtl8365mb";
+		/* 7 = MDIO (has input reads), 6 = MDC (clock, output only) */
+		mdc-gpios = <&chipcommon 6 GPIO_ACTIVE_HIGH>;
+		mdio-gpios = <&chipcommon 7 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&chipcommon 10 GPIO_ACTIVE_LOW>;
+		realtek,disable-leds;
+		dsa,member = <1 0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				label = "lan5";
+				phy-handle = <&ethphy0>;
+			};
+
+			port@1 {
+				reg = <1>;
+				label = "lan6";
+				phy-handle = <&ethphy1>;
+			};
+
+			port@2 {
+				reg = <2>;
+				label = "lan7";
+				phy-handle = <&ethphy2>;
+			};
+
+			port@3 {
+				reg = <3>;
+				label = "lan8";
+				phy-handle = <&ethphy3>;
+			};
+
+			port@6 {
+				reg = <6>;
+				label = "cpu";
+				ethernet = <&sw0_p5>;
+				phy-mode = "rgmii";
+				tx-internal-delay-ps = <2000>;
+				rx-internal-delay-ps = <2100>;
+
+				fixed-link {
+					speed = <1000>;
+					full-duplex;
+					pause;
+				};
+			};
+		};
+
+		mdio {
+			compatible = "realtek,smi-mdio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ethphy0: ethernet-phy@0 {
+				reg = <0>;
+			};
+
+			ethphy1: ethernet-phy@1 {
+				reg = <1>;
+			};
+
+			ethphy2: ethernet-phy@2 {
+				reg = <2>;
+			};
+
+			ethphy3: ethernet-phy@3 {
+				reg = <3>;
+			};
+		};
+	};
 };
 
 &srab {

arch/arm/boot/dts/bcm47094-luxul-xwr-3150-v1.dts

@@ -25,6 +25,9 @@
 	nvram@1eff0000 {
 		compatible = "brcm,nvram";
 		reg = <0x1eff0000 0x10000>;
+
+		et0macaddr: et0macaddr {
+		};
 	};
 
 	leds {
@@ -72,6 +75,11 @@
 	};
 };
 
+&gmac0 {
+	nvmem-cells = <&et0macaddr>;
+	nvmem-cell-names = "mac-address";
+};
+
 &usb3 {
 	vcc-gpio = <&chipcommon 18 GPIO_ACTIVE_HIGH>;
 };

arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi

@@ -57,10 +57,9 @@
 
 		led-4 {
 			/* amber:power */
-			function = LED_FUNCTION_POWER;
+			function = LED_FUNCTION_FAULT;
 			color = <LED_COLOR_ID_AMBER>;
 			gpios = <&gpioa 3 GPIO_ACTIVE_HIGH>;
-			default-state = "on";
 		};
 
 		led-5 {

arch/arm/boot/dts/bcm958625-meraki-kingpin.dtsi

@@ -106,10 +106,9 @@
 
 		led-a {
 			/* amber:power */
-			function = LED_FUNCTION_POWER;
+			function = LED_FUNCTION_FAULT;
 			color = <LED_COLOR_ID_AMBER>;
 			gpios = <&gpioa 0 GPIO_ACTIVE_LOW>;
-			default-state = "on";
 		};
 
 		led-b {

arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi

@@ -22,7 +22,7 @@
 		};
 
 		led-2 {
-			function = LED_FUNCTION_INDICATOR;
+			function = LED_FUNCTION_POWER;
 			color = <LED_COLOR_ID_GREEN>;
 			pwms = <&pwm 2 50000>;
 			max-brightness = <255>;
@@ -39,6 +39,8 @@
 
 &amac2 {
 	status = "okay";
+	nvmem-cells = <&mac_address>;
+	nvmem-cell-names = "mac-address";
 };
 
 &ehci0 {
@@ -53,6 +55,12 @@
 		reg = <0x50>;
 		pagesize = <32>;
 		read-only;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		mac_address: mac-address@66 {
+			reg = <0x66 0x6>;
+		};
 	};
 };
 

arch/arm64/boot/dts/broadcom/Makefile

@@ -5,7 +5,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
 			      bcm2837-rpi-3-a-plus.dtb \
 			      bcm2837-rpi-3-b.dtb \
 			      bcm2837-rpi-3-b-plus.dtb \
-			      bcm2837-rpi-cm3-io3.dtb
+			      bcm2837-rpi-cm3-io3.dtb \
+			      bcm2837-rpi-zero-2-w.dtb
 
 subdir-y	+= bcm4908
 subdir-y	+= northstar2

arch/arm64/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts

@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "arm/bcm2837-rpi-zero-2-w.dts"