bcm4908: backport bcmbca DT patches queued for 5.20

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit d63ef7c90f75393270ec4f5ff1b2563d6bd52066)

10 files changed, 1161 insertions, 0 deletions

diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0001-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM63158.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0001-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM63158.patch
new file mode 100644
index 0000000000..81bc06eb3d
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0001-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM63158.patch
@@ -0,0 +1,199 @@
+From 076dcedc6628c6bf92bd17bfcf8fb7b1af62bfb6 Mon Sep 17 00:00:00 2001
+From: William Zhang <william.zhang@broadcom.com>
+Date: Wed, 1 Jun 2022 15:56:51 -0700
+Subject: [PATCH] arm64: dts: Add DTS files for bcmbca SoC BCM63158
+
+Add DTS for ARMv8 based broadband SoC BCM63158. bcm63158.dtsi is the
+SoC description DTS header and bcm963158.dts is a simple DTS file for
+Broadcom BCM963158 Reference board that only enable the UART port.
+
+Signed-off-by: William Zhang <william.zhang@broadcom.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm64/boot/dts/broadcom/Makefile         |   1 +
+ arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |   2 +
+ .../boot/dts/broadcom/bcmbca/bcm63158.dtsi    | 128 ++++++++++++++++++
+ .../boot/dts/broadcom/bcmbca/bcm963158.dts    |  30 ++++
+ 4 files changed, 161 insertions(+)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm63158.dtsi
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm963158.dts
+
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -5,5 +5,6 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rp
+ 			      bcm2837-rpi-cm3-io3.dtb
+ 
+ subdir-y	+= bcm4908
++subdir-y	+= bcmbca
+ subdir-y	+= northstar2
+ subdir-y	+= stingray
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+@@ -0,0 +1,2 @@
++# SPDX-License-Identifier: GPL-2.0
++dtb-$(CONFIG_ARCH_BCMBCA) += bcm963158.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm63158.dtsi
+@@ -0,0 +1,128 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/ {
++	compatible = "brcm,bcm63158", "brcm,bcmbca";
++	#address-cells = <2>;
++	#size-cells = <2>;
++
++	interrupt-parent = <&gic>;
++
++	cpus {
++		#address-cells = <2>;
++		#size-cells = <0>;
++
++		B53_0: cpu@0 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x0>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_1: cpu@1 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x1>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_2: cpu@2 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x2>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_3: cpu@3 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x3>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		L2_0: l2-cache0 {
++			compatible = "cache";
++		};
++	};
++
++	timer {
++		compatible = "arm,armv8-timer";
++		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
++	};
++
++	pmu: pmu {
++		compatible = "arm,cortex-a53-pmu";
++		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-affinity = <&B53_0>, <&B53_1>,
++			<&B53_2>, <&B53_3>;
++	};
++
++	clocks: clocks {
++		periph_clk: periph-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <200000000>;
++		};
++		uart_clk: uart-clk {
++			compatible = "fixed-factor-clock";
++			#clock-cells = <0>;
++			clocks = <&periph_clk>;
++			clock-div = <4>;
++			clock-mult = <1>;
++		};
++	};
++
++	psci {
++		compatible = "arm,psci-0.2";
++		method = "smc";
++	};
++
++	axi@81000000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0x81000000 0x8000>;
++
++		gic: interrupt-controller@1000 {
++			compatible = "arm,gic-400";
++			#interrupt-cells = <3>;
++			interrupt-controller;
++			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
++			reg = <0x1000 0x1000>,
++				<0x2000 0x2000>,
++				<0x4000 0x2000>,
++				<0x6000 0x2000>;
++		};
++	};
++
++	bus@ff800000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0xff800000 0x800000>;
++
++		uart0: serial@12000 {
++			compatible = "arm,pl011", "arm,primecell";
++			reg = <0x12000 0x1000>;
++			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
++			clocks = <&uart_clk>, <&uart_clk>;
++			clock-names = "uartclk", "apb_pclk";
++			status = "disabled";
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm963158.dts
+@@ -0,0 +1,30 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++/dts-v1/;
++
++#include "bcm63158.dtsi"
++
++/ {
++	model = "Broadcom BCM963158 Reference Board";
++	compatible = "brcm,bcm963158", "brcm,bcm63158", "brcm,bcmbca";
++
++	aliases {
++		serial0 = &uart0;
++	};
++
++	chosen {
++		stdout-path = "serial0:115200n8";
++	};
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x0 0x0 0x0 0x08000000>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0002-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM4912.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0002-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM4912.patch
new file mode 100644
index 0000000000..5cdb9d1df1
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0002-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM4912.patch
@@ -0,0 +1,191 @@
+From 1ba56aeb391401c4cb2126c39f90b3cdbfabdb3f Mon Sep 17 00:00:00 2001
+From: William Zhang <william.zhang@broadcom.com>
+Date: Wed, 1 Jun 2022 13:17:34 -0700
+Subject: [PATCH] arm64: dts: Add DTS files for bcmbca SoC BCM4912
+
+Add DTS for ARMv8 based broadband SoC BCM4912. bcm4912.dtsi is the
+SoC description DTS header and bcm94912.dts is a simple DTS file for
+Broadcom BCM94912 Reference board that only enable the UART port.
+
+Signed-off-by: William Zhang <william.zhang@broadcom.com>
+Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |   3 +-
+ .../boot/dts/broadcom/bcmbca/bcm4912.dtsi     | 128 ++++++++++++++++++
+ .../boot/dts/broadcom/bcmbca/bcm94912.dts     |  30 ++++
+ 3 files changed, 160 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm4912.dtsi
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm94912.dts
+
+--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+@@ -1,2 +1,3 @@
+ # SPDX-License-Identifier: GPL-2.0
+-dtb-$(CONFIG_ARCH_BCMBCA) += bcm963158.dtb
++dtb-$(CONFIG_ARCH_BCMBCA) += bcm94912.dtb \
++				bcm963158.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4912.dtsi
+@@ -0,0 +1,128 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/ {
++	compatible = "brcm,bcm4912", "brcm,bcmbca";
++	#address-cells = <2>;
++	#size-cells = <2>;
++
++	interrupt-parent = <&gic>;
++
++	cpus {
++		#address-cells = <2>;
++		#size-cells = <0>;
++
++		B53_0: cpu@0 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x0>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_1: cpu@1 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x1>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_2: cpu@2 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x2>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_3: cpu@3 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x3>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		L2_0: l2-cache0 {
++			compatible = "cache";
++		};
++	};
++
++	timer {
++		compatible = "arm,armv8-timer";
++		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
++	};
++
++	pmu: pmu {
++		compatible = "arm,cortex-a53-pmu";
++		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-affinity = <&B53_0>, <&B53_1>,
++			<&B53_2>, <&B53_3>;
++	};
++
++	clocks: clocks {
++		periph_clk: periph-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <200000000>;
++		};
++		uart_clk: uart-clk {
++			compatible = "fixed-factor-clock";
++			#clock-cells = <0>;
++			clocks = <&periph_clk>;
++			clock-div = <4>;
++			clock-mult = <1>;
++		};
++	};
++
++	psci {
++		compatible = "arm,psci-0.2";
++		method = "smc";
++	};
++
++	axi@81000000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0x81000000 0x8000>;
++
++		gic: interrupt-controller@1000 {
++			compatible = "arm,gic-400";
++			#interrupt-cells = <3>;
++			interrupt-controller;
++			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
++			reg = <0x1000 0x1000>,
++				<0x2000 0x2000>,
++				<0x4000 0x2000>,
++				<0x6000 0x2000>;
++		};
++	};
++
++	bus@ff800000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0xff800000 0x800000>;
++
++		uart0: serial@12000 {
++			compatible = "arm,pl011", "arm,primecell";
++			reg = <0x12000 0x1000>;
++			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
++			clocks = <&uart_clk>, <&uart_clk>;
++			clock-names = "uartclk", "apb_pclk";
++			status = "disabled";
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm94912.dts
+@@ -0,0 +1,30 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++/dts-v1/;
++
++#include "bcm4912.dtsi"
++
++/ {
++	model = "Broadcom BCM94912 Reference Board";
++	compatible = "brcm,bcm94912", "brcm,bcm4912", "brcm,bcmbca";
++
++	aliases {
++		serial0 = &uart0;
++	};
++
++	chosen {
++		stdout-path = "serial0:115200n8";
++	};
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x0 0x0 0x0 0x08000000>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0003-ARM64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6858.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0003-ARM64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6858.patch
new file mode 100644
index 0000000000..f10a44f890
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0003-ARM64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6858.patch
@@ -0,0 +1,184 @@
+From e663e06bd3f21e64bc2163910f626af68add6308 Mon Sep 17 00:00:00 2001
+From: Anand Gore <anand.gore@broadcom.com>
+Date: Wed, 1 Jun 2022 13:19:56 -0700
+Subject: [PATCH] ARM64: dts: Add DTS files for bcmbca SoC BCM6858
+
+Add DTS for ARMv8 based broadband SoC BCM6858. bcm6858.dtsi is the SoC
+description DTS header and bcm96858.dts is a simple DTS file for
+Broadcom BCM96858 Reference board that only enables the UART port.
+
+Signed-off-by: Anand Gore <anand.gore@broadcom.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |   3 +-
+ .../boot/dts/broadcom/bcmbca/bcm6858.dtsi     | 121 ++++++++++++++++++
+ .../boot/dts/broadcom/bcmbca/bcm96858.dts     |  30 +++++
+ 3 files changed, 153 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm6858.dtsi
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm96858.dts
+
+--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+@@ -1,3 +1,4 @@
+ # SPDX-License-Identifier: GPL-2.0
+ dtb-$(CONFIG_ARCH_BCMBCA) += bcm94912.dtb \
+-				bcm963158.dtb
++				bcm963158.dtb \
++				bcm96858.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm6858.dtsi
+@@ -0,0 +1,121 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/ {
++	compatible = "brcm,bcm6858", "brcm,bcmbca";
++	#address-cells = <2>;
++	#size-cells = <2>;
++
++	interrupt-parent = <&gic>;
++
++	cpus {
++		#address-cells = <2>;
++		#size-cells = <0>;
++
++		B53_0: cpu@0 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x0>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_1: cpu@1 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x1>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_2: cpu@2 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x2>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_3: cpu@3 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x3>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++		L2_0: l2-cache0 {
++			compatible = "cache";
++		};
++	};
++
++	timer {
++		compatible = "arm,armv8-timer";
++		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
++	};
++
++	pmu: pmu {
++		compatible = "arm,armv8-pmuv3";
++		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-affinity = <&B53_0>, <&B53_1>,
++			<&B53_2>, <&B53_3>;
++	};
++
++	clocks: clocks {
++		periph_clk:periph-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <200000000>;
++		};
++	};
++
++	psci {
++		compatible = "arm,psci-0.2";
++		method = "smc";
++	};
++
++	axi@81000000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0x81000000 0x8000>;
++
++		gic: interrupt-controller@1000 {
++			compatible = "arm,gic-400";
++			#interrupt-cells = <3>;
++			interrupt-controller;
++			reg = <0x1000 0x1000>, /* GICD */
++				<0x2000 0x2000>, /* GICC */
++				<0x4000 0x2000>, /* GICH */
++				<0x6000 0x2000>; /* GICV */
++			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) |
++					IRQ_TYPE_LEVEL_HIGH)>;
++		};
++	};
++
++	bus@ff800000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0xff800000 0x62000>;
++
++		uart0: serial@640 {
++			compatible = "brcm,bcm6345-uart";
++			reg = <0x640 0x18>;
++			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
++			clocks = <&periph_clk>;
++			clock-names = "refclk";
++			status = "disabled";
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm96858.dts
+@@ -0,0 +1,30 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++/dts-v1/;
++
++#include "bcm6858.dtsi"
++
++/ {
++	model = "Broadcom BCM96858 Reference Board";
++	compatible = "brcm,bcm96858", "brcm,bcm6858", "brcm,bcmbca";
++
++	aliases {
++		serial0 = &uart0;
++	};
++
++	chosen {
++		stdout-path = "serial0:115200n8";
++	};
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x0 0x0 0x0 0x08000000>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0004-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM63146.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0004-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM63146.patch
new file mode 100644
index 0000000000..793c5af738
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0004-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM63146.patch
@@ -0,0 +1,174 @@
+From 82a58061ada60058ec00113c179380f945914709 Mon Sep 17 00:00:00 2001
+From: William Zhang <william.zhang@broadcom.com>
+Date: Wed, 8 Jun 2022 11:00:59 -0700
+Subject: [PATCH] arm64: dts: Add DTS files for bcmbca SoC BCM63146
+
+Add DTS for ARMv8 based broadband SoC BCM63146. bcm63146.dtsi is the
+SoC description DTS header and bcm963146.dts is a simple DTS file for
+Broadcom BCM963146 Reference board that only enable the UART port.
+
+Signed-off-by: William Zhang <william.zhang@broadcom.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |   3 +-
+ .../boot/dts/broadcom/bcmbca/bcm63146.dtsi    | 110 ++++++++++++++++++
+ .../boot/dts/broadcom/bcmbca/bcm963146.dts    |  30 +++++
+ 3 files changed, 142 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm63146.dtsi
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm963146.dts
+
+--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+@@ -1,4 +1,5 @@
+ # SPDX-License-Identifier: GPL-2.0
+ dtb-$(CONFIG_ARCH_BCMBCA) += bcm94912.dtb \
+ 				bcm963158.dtb \
+-				bcm96858.dtb
++				bcm96858.dtb \
++				bcm963146.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm63146.dtsi
+@@ -0,0 +1,110 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/ {
++	compatible = "brcm,bcm63146", "brcm,bcmbca";
++	#address-cells = <2>;
++	#size-cells = <2>;
++
++	interrupt-parent = <&gic>;
++
++	cpus {
++		#address-cells = <2>;
++		#size-cells = <0>;
++
++		B53_0: cpu@0 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x0>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_1: cpu@1 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x1>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		L2_0: l2-cache0 {
++			compatible = "cache";
++		};
++	};
++
++	timer {
++		compatible = "arm,armv8-timer";
++		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
++	};
++
++	pmu: pmu {
++		compatible = "arm,cortex-a53-pmu";
++		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-affinity = <&B53_0>, <&B53_1>;
++	};
++
++	clocks: clocks {
++		periph_clk: periph-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <200000000>;
++		};
++		uart_clk: uart-clk {
++			compatible = "fixed-factor-clock";
++			#clock-cells = <0>;
++			clocks = <&periph_clk>;
++			clock-div = <4>;
++			clock-mult = <1>;
++		};
++	};
++
++	psci {
++		compatible = "arm,psci-0.2";
++		method = "smc";
++	};
++
++	axi@81000000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0x81000000 0x8000>;
++
++		gic: interrupt-controller@1000 {
++			compatible = "arm,gic-400";
++			#interrupt-cells = <3>;
++			interrupt-controller;
++			reg = <0x1000 0x1000>,
++				<0x2000 0x2000>,
++				<0x4000 0x2000>,
++				<0x6000 0x2000>;
++			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) |
++					IRQ_TYPE_LEVEL_HIGH)>;
++		};
++	};
++
++	bus@ff800000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0xff800000 0x800000>;
++
++		uart0: serial@12000 {
++			compatible = "arm,pl011", "arm,primecell";
++			reg = <0x12000 0x1000>;
++			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
++			clocks = <&uart_clk>, <&uart_clk>;
++			clock-names = "uartclk", "apb_pclk";
++			status = "disabled";
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm963146.dts
+@@ -0,0 +1,30 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++/dts-v1/;
++
++#include "bcm63146.dtsi"
++
++/ {
++	model = "Broadcom BCM963146 Reference Board";
++	compatible = "brcm,bcm963146", "brcm,bcm63146", "brcm,bcmbca";
++
++	aliases {
++		serial0 = &uart0;
++	};
++
++	chosen {
++		stdout-path = "serial0:115200n8";
++	};
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x0 0x0 0x0 0x08000000>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0005-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6856.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0005-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6856.patch
new file mode 100644
index 0000000000..0fdafb7f17
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0005-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6856.patch
@@ -0,0 +1,167 @@
+From 64eca7ad058cff861b48cdead8dee40dfc284e9e Mon Sep 17 00:00:00 2001
+From: William Zhang <william.zhang@broadcom.com>
+Date: Wed, 8 Jun 2022 11:04:36 -0700
+Subject: [PATCH] arm64: dts: Add DTS files for bcmbca SoC BCM6856
+
+Add DTS for ARMv8 based broadband SoC BCM6856. bcm6856.dtsi is the
+SoC description DTS header and bcm96856.dts is a simple DTS file for
+Broadcom BCM96956 Reference board that only enable the UART port.
+
+Signed-off-by: William Zhang <william.zhang@broadcom.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |   3 +-
+ .../boot/dts/broadcom/bcmbca/bcm6856.dtsi     | 103 ++++++++++++++++++
+ .../boot/dts/broadcom/bcmbca/bcm96856.dts     |  30 +++++
+ 3 files changed, 135 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm6856.dtsi
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm96856.dts
+
+--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+@@ -2,4 +2,5 @@
+ dtb-$(CONFIG_ARCH_BCMBCA) += bcm94912.dtb \
+ 				bcm963158.dtb \
+ 				bcm96858.dtb \
+-				bcm963146.dtb
++				bcm963146.dtb \
++				bcm96856.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm6856.dtsi
+@@ -0,0 +1,103 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/ {
++	compatible = "brcm,bcm6856", "brcm,bcmbca";
++	#address-cells = <2>;
++	#size-cells = <2>;
++
++	interrupt-parent = <&gic>;
++
++	cpus {
++		#address-cells = <2>;
++		#size-cells = <0>;
++
++		B53_0: cpu@0 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x0>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_1: cpu@1 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x1>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		L2_0: l2-cache0 {
++			compatible = "cache";
++		};
++	};
++
++	timer {
++		compatible = "arm,armv8-timer";
++		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
++	};
++
++	pmu: pmu {
++		compatible = "arm,cortex-a53-pmu";
++		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-affinity = <&B53_0>, <&B53_1>;
++	};
++
++	clocks: clocks {
++		periph_clk:periph-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <200000000>;
++		};
++	};
++
++	psci {
++		compatible = "arm,psci-0.2";
++		method = "smc";
++	};
++
++	axi@81000000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0x81000000 0x8000>;
++
++		gic: interrupt-controller@1000 {
++			compatible = "arm,gic-400";
++			#interrupt-cells = <3>;
++			interrupt-controller;
++			reg = <0x1000 0x1000>, /* GICD */
++				<0x2000 0x2000>, /* GICC */
++				<0x4000 0x2000>, /* GICH */
++				<0x6000 0x2000>; /* GICV */
++			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) |
++					IRQ_TYPE_LEVEL_HIGH)>;
++		};
++	};
++
++	bus@ff800000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0xff800000 0x800000>;
++
++		uart0: serial@640 {
++			compatible = "brcm,bcm6345-uart";
++			reg = <0x640 0x18>;
++			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
++			clocks = <&periph_clk>;
++			clock-names = "refclk";
++			status = "disabled";
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm96856.dts
+@@ -0,0 +1,30 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++/dts-v1/;
++
++#include "bcm6856.dtsi"
++
++/ {
++	model = "Broadcom BCM96856 Reference Board";
++	compatible = "brcm,bcm96856", "brcm,bcm6856", "brcm,bcmbca";
++
++	aliases {
++		serial0 = &uart0;
++	};
++
++	chosen {
++		stdout-path = "serial0:115200n8";
++	};
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x0 0x0 0x0 0x08000000>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0006-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6813.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0006-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6813.patch
new file mode 100644
index 0000000000..58af85a68c
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0006-arm64-dts-Add-DTS-files-for-bcmbca-SoC-BCM6813.patch
@@ -0,0 +1,192 @@
+From eab6bb0994b806525fc5e362e8b865f61c4a9e20 Mon Sep 17 00:00:00 2001
+From: William Zhang <william.zhang@broadcom.com>
+Date: Thu, 9 Jun 2022 17:15:33 -0700
+Subject: [PATCH] arm64: dts: Add DTS files for bcmbca SoC BCM6813
+
+Add DTS for ARMv8 based broadband SoC BCM6813. bcm6813.dtsi is the
+SoC description DTS header and bcm96813.dts is a simple DTS file for
+Broadcom BCM96813 Reference board that only enable the UART port.
+
+Signed-off-by: William Zhang <william.zhang@broadcom.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |   3 +-
+ .../boot/dts/broadcom/bcmbca/bcm6813.dtsi     | 128 ++++++++++++++++++
+ .../boot/dts/broadcom/bcmbca/bcm96813.dts     |  30 ++++
+ 3 files changed, 160 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm6813.dtsi
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm96813.dts
+
+--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+@@ -3,4 +3,5 @@ dtb-$(CONFIG_ARCH_BCMBCA) += bcm94912.dt
+ 				bcm963158.dtb \
+ 				bcm96858.dtb \
+ 				bcm963146.dtb \
+-				bcm96856.dtb
++				bcm96856.dtb \
++				bcm96813.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm6813.dtsi
+@@ -0,0 +1,128 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/ {
++	compatible = "brcm,bcm6813", "brcm,bcmbca";
++	#address-cells = <2>;
++	#size-cells = <2>;
++
++	interrupt-parent = <&gic>;
++
++	cpus {
++		#address-cells = <2>;
++		#size-cells = <0>;
++
++		B53_0: cpu@0 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x0>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_1: cpu@1 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x1>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_2: cpu@2 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x2>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		B53_3: cpu@3 {
++			compatible = "brcm,brahma-b53";
++			device_type = "cpu";
++			reg = <0x0 0x3>;
++			next-level-cache = <&L2_0>;
++			enable-method = "psci";
++		};
++
++		L2_0: l2-cache0 {
++			compatible = "cache";
++		};
++	};
++
++	timer {
++		compatible = "arm,armv8-timer";
++		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
++			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
++	};
++
++	pmu: pmu {
++		compatible = "arm,cortex-a53-pmu";
++		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
++			<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-affinity = <&B53_0>, <&B53_1>,
++			<&B53_2>, <&B53_3>;
++	};
++
++	clocks: clocks {
++		periph_clk: periph-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <200000000>;
++		};
++		uart_clk: uart-clk {
++			compatible = "fixed-factor-clock";
++			#clock-cells = <0>;
++			clocks = <&periph_clk>;
++			clock-div = <4>;
++			clock-mult = <1>;
++		};
++	};
++
++	psci {
++		compatible = "arm,psci-0.2";
++		method = "smc";
++	};
++
++	axi@81000000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0x81000000 0x8000>;
++
++		gic: interrupt-controller@1000 {
++			compatible = "arm,gic-400";
++			#interrupt-cells = <3>;
++			interrupt-controller;
++			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
++			reg = <0x1000 0x1000>,
++				<0x2000 0x2000>,
++				<0x4000 0x2000>,
++				<0x6000 0x2000>;
++		};
++	};
++
++	bus@ff800000 {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges = <0x0 0x0 0xff800000 0x800000>;
++
++		uart0: serial@12000 {
++			compatible = "arm,pl011", "arm,primecell";
++			reg = <0x12000 0x1000>;
++			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
++			clocks = <&uart_clk>, <&uart_clk>;
++			clock-names = "uartclk", "apb_pclk";
++			status = "disabled";
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm96813.dts
+@@ -0,0 +1,30 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright 2022 Broadcom Ltd.
++ */
++
++/dts-v1/;
++
++#include "bcm6813.dtsi"
++
++/ {
++	model = "Broadcom BCM96813 Reference Board";
++	compatible = "brcm,bcm96813", "brcm,bcm6813", "brcm,bcmbca";
++
++	aliases {
++		serial0 = &uart0;
++	};
++
++	chosen {
++		stdout-path = "serial0:115200n8";
++	};
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x0 0x0 0x0 0x08000000>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0001-arm64-dts-broadcom-align-gpio-key-node-names-with-dt.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0007-arm64-dts-broadcom-align-gpio-key-node-names-with-dt.patch
index d0d6151957..d0d6151957 100644
--- a/target/linux/bcm4908/patches-5.4/037-v5.20-0001-arm64-dts-broadcom-align-gpio-key-node-names-with-dt.patch
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0007-arm64-dts-broadcom-align-gpio-key-node-names-with-dt.patch
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0002-arm64-dts-broadcom-bcm4908-Fix-timer-node-for-BCM490.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0008-arm64-dts-broadcom-bcm4908-Fix-timer-node-for-BCM490.patch
index c2b924a0fd..c2b924a0fd 100644
--- a/target/linux/bcm4908/patches-5.4/037-v5.20-0002-arm64-dts-broadcom-bcm4908-Fix-timer-node-for-BCM490.patch
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0008-arm64-dts-broadcom-bcm4908-Fix-timer-node-for-BCM490.patch
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0003-arm64-dts-broadcom-bcm4908-Fix-cpu-node-for-smp-boot.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0009-arm64-dts-broadcom-bcm4908-Fix-cpu-node-for-smp-boot.patch
index 482fd1cc98..482fd1cc98 100644
--- a/target/linux/bcm4908/patches-5.4/037-v5.20-0003-arm64-dts-broadcom-bcm4908-Fix-cpu-node-for-smp-boot.patch
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0009-arm64-dts-broadcom-bcm4908-Fix-cpu-node-for-smp-boot.patch
diff --git a/target/linux/bcm4908/patches-5.4/037-v5.20-0010-arm64-dts-Add-base-DTS-file-for-bcmbca-device-Asus-G.patch b/target/linux/bcm4908/patches-5.4/037-v5.20-0010-arm64-dts-Add-base-DTS-file-for-bcmbca-device-Asus-G.patch
new file mode 100644
index 0000000000..6f71c8b5fb
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/037-v5.20-0010-arm64-dts-Add-base-DTS-file-for-bcmbca-device-Asus-G.patch
@@ -0,0 +1,54 @@
+From f3f575c4bef95384e68de552c7b29938fd0d9201 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Wed, 13 Jul 2022 22:03:51 +0200
+Subject: [PATCH] arm64: dts: Add base DTS file for bcmbca device Asus
+ GT-AX6000
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+It's a home router with 1 GiB of RAM, 6 Ethernet ports, 2 USB ports.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Acked-by: William Zhang <william.zhang@broadcom.com>
+Link: https://lore.kernel.org/r/20220713200351.28526-2-zajec5@gmail.com
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |  4 +++-
+ .../bcmbca/bcm4912-asus-gt-ax6000.dts         | 19 +++++++++++++++++++
+ 2 files changed, 22 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm4912-asus-gt-ax6000.dts
+
+--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+@@ -1,5 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+-dtb-$(CONFIG_ARCH_BCMBCA) += bcm94912.dtb \
++dtb-$(CONFIG_ARCH_BCMBCA) += \
++				bcm4912-asus-gt-ax6000.dtb \
++				bcm94912.dtb \
+ 				bcm963158.dtb \
+ 				bcm96858.dtb \
+ 				bcm963146.dtb \
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4912-asus-gt-ax6000.dts
+@@ -0,0 +1,19 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++
++/dts-v1/;
++
++#include "bcm4912.dtsi"
++
++/ {
++	compatible = "asus,gt-ax6000", "brcm,bcm4912", "brcm,bcmbca";
++	model = "Asus GT-AX6000";
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x00 0x00 0x00 0x40000000>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};