bcm53xx: add testing support for kernel 6.1

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

15 files changed, 1830 insertions, 0 deletions

diff --git a/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-BCM5301X-Correct-description-of-TP-Link-part.patch b/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-BCM5301X-Correct-description-of-TP-Link-part.patch
new file mode 100644
index 0000000000..4c4ed036b9
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-BCM5301X-Correct-description-of-TP-Link-part.patch
@@ -0,0 +1,99 @@
+From c8ee9f119bfb4244f76c9971c341ec06b49332cd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 8 Nov 2022 12:07:08 +0100
+Subject: [PATCH] ARM: dts: BCM5301X: Correct description of TP-Link partitions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+TP-Link routers have flash space partitioned according to the partitions
+table. It may look like fixed partitioning but those partitions can be
+actually reorganized. New can be added (or some removed), offsets and
+sizes may change.
+
+Fix DT to use binding for the TP-Link SafeLoader partitioning method.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Link: https://lore.kernel.org/r/20221108110708.13693-1-zajec5@gmail.com
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ .../boot/dts/bcm47081-tplink-archer-c5-v2.dts | 25 ++++---------------
+ .../boot/dts/bcm4709-tplink-archer-c9-v1.dts  | 25 ++++---------------
+ 2 files changed, 10 insertions(+), 40 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
++++ b/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+@@ -95,30 +95,15 @@
+ 	status = "okay";
+ 
+ 	partitions {
+-		compatible = "fixed-partitions";
+-		#address-cells = <1>;
+-		#size-cells = <1>;
++		compatible = "tplink,safeloader-partitions";
++		partitions-table-offset = <0xe50000>;
+ 
+-		boot@0 {
+-			label = "boot";
+-			reg = <0x000000 0x040000>;
+-			read-only;
+-		};
+-
+-		os-image@100000 {
+-			label = "os-image";
+-			reg = <0x040000 0x200000>;
++		partition-os-image {
+ 			compatible = "brcm,trx";
+ 		};
+ 
+-		rootfs@240000 {
+-			label = "rootfs";
+-			reg = <0x240000 0xc00000>;
+-		};
+-
+-		nvram@ff0000 {
+-			label = "nvram";
+-			reg = <0xff0000 0x010000>;
++		partition-file-system {
++			linux,rootfs;
+ 		};
+ 	};
+ };
+--- a/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
++++ b/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
+@@ -104,30 +104,15 @@
+ 	status = "okay";
+ 
+ 	partitions {
+-		compatible = "fixed-partitions";
+-		#address-cells = <1>;
+-		#size-cells = <1>;
++		compatible = "tplink,safeloader-partitions";
++		partitions-table-offset = <0xe50000>;
+ 
+-		boot@0 {
+-			label = "boot";
+-			reg = <0x000000 0x040000>;
+-			read-only;
+-		};
+-
+-		os-image@100000 {
+-			label = "os-image";
+-			reg = <0x040000 0x200000>;
++		partition-os-image {
+ 			compatible = "brcm,trx";
+ 		};
+ 
+-		rootfs@240000 {
+-			label = "rootfs";
+-			reg = <0x240000 0xc00000>;
+-		};
+-
+-		nvram@ff0000 {
+-			label = "nvram";
+-			reg = <0xff0000 0x010000>;
++		partition-file-system {
++			linux,rootfs;
+ 		};
+ 	};
+ };
diff --git a/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-bcm47094-Add-devicetree-for-D-Link-DIR-890L.patch b/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-bcm47094-Add-devicetree-for-D-Link-DIR-890L.patch
new file mode 100644
index 0000000000..21bb94fcc3
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-bcm47094-Add-devicetree-for-D-Link-DIR-890L.patch
@@ -0,0 +1,242 @@
+From b1ba87897ceda8e49a47aa92832dd7bff8583e21 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij@linaro.org>
+Date: Mon, 7 Nov 2022 14:41:04 +0100
+Subject: [PATCH] ARM: dts: bcm47094: Add devicetree for D-Link DIR-890L
+
+This adds a device tree for the D-Link DIR-890L. This device
+is very similar to D-Link DIR-885L, the differences are detailed
+as a comment in the DTS file.
+
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+Link: https://lore.kernel.org/r/20221107134104.1422169-2-linus.walleij@linaro.org
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/Makefile                    |   1 +
+ arch/arm/boot/dts/bcm47094-dlink-dir-890l.dts | 211 ++++++++++++++++++
+ 2 files changed, 212 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm47094-dlink-dir-890l.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -129,6 +129,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ 	bcm4709-tplink-archer-c9-v1.dtb \
+ 	bcm47094-asus-rt-ac88u.dtb \
+ 	bcm47094-dlink-dir-885l.dtb \
++	bcm47094-dlink-dir-890l.dtb \
+ 	bcm47094-linksys-panamera.dtb \
+ 	bcm47094-luxul-abr-4500.dtb \
+ 	bcm47094-luxul-xap-1610.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm47094-dlink-dir-890l.dts
+@@ -0,0 +1,211 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++/*
++ * Device tree for D-Link DIR-890L
++ * D-Link calls this board "WRGAC36"
++ * this router has the same looks and form factor as D-Link DIR-885L.
++ *
++ * Some differences from DIR-885L include a separate USB2 port, separate LEDs
++ * for USB2 and USB3, a separate VCC supply for the USB2 slot and no
++ * router/extender switch is mounted (there is an empty mount point on the
++ * PCB) so this device is a pure router. Also the LAN ports are in the right
++ * order.
++ *
++ * Based on the device tree for DIR-885L
++ * Copyright (C) 2016 Rafał Miłecki <zajec5@gmail.com>
++ * Copyright (C) 2022 Linus Walleij
++ */
++
++/dts-v1/;
++
++#include "bcm47094.dtsi"
++#include "bcm5301x-nand-cs0-bch1.dtsi"
++
++/ {
++	compatible = "dlink,dir-890l", "brcm,bcm47094", "brcm,bcm4708";
++	model = "D-Link DIR-890L";
++
++	chosen {
++		bootargs = "console=ttyS0,115200 earlycon";
++	};
++
++	memory@0 {
++		device_type = "memory";
++		reg = <0x00000000 0x08000000>,
++		      <0x88000000 0x08000000>;
++	};
++
++	leds {
++		/*
++		 * LED information is derived from the boot log which
++		 * conveniently lists all the LEDs.
++		 */
++		compatible = "gpio-leds";
++
++		power-white {
++			label = "bcm53xx:white:power";
++			gpios = <&chipcommon 0 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "default-on";
++		};
++
++		wan-white {
++			label = "bcm53xx:white:wan";
++			gpios = <&chipcommon 1 GPIO_ACTIVE_LOW>;
++		};
++
++		power-amber {
++			label = "bcm53xx:amber:power";
++			gpios = <&chipcommon 2 GPIO_ACTIVE_LOW>;
++		};
++
++		wan-amber {
++			label = "bcm53xx:amber:wan";
++			gpios = <&chipcommon 3 GPIO_ACTIVE_LOW>;
++		};
++
++		usb3-white {
++			label = "bcm53xx:white:usb3";
++			gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
++			trigger-sources = <&xhci_port1>;
++			linux,default-trigger = "usbport";
++		};
++
++		usb2-white {
++			label = "bcm53xx:white:usb2";
++			gpios = <&chipcommon 15 GPIO_ACTIVE_LOW>;
++			trigger-sources = <&ohci_port1>, <&ehci_port1>;
++			linux,default-trigger = "usbport";
++		};
++
++		2ghz {
++			label = "bcm53xx:white:2ghz";
++			gpios = <&chipcommon 13 GPIO_ACTIVE_LOW>;
++		};
++
++		5ghz {
++			label = "bcm53xx:white:5ghz";
++			gpios = <&chipcommon 14 GPIO_ACTIVE_LOW>;
++		};
++	};
++
++	gpio-keys {
++		compatible = "gpio-keys";
++
++		button-wps {
++			label = "WPS";
++			linux,code = <KEY_WPS_BUTTON>;
++			gpios = <&chipcommon 7 GPIO_ACTIVE_LOW>;
++		};
++
++		/* Called "factory reset" in the vendor dmesg */
++		button-restart {
++			label = "Reset";
++			linux,code = <KEY_RESTART>;
++			gpios = <&chipcommon 17 GPIO_ACTIVE_LOW>;
++		};
++	};
++
++	/*
++	 * The flash memory is memory mapped at 0x1e000000-0x1fffffff
++	 * 64KB blocks; total size 2MB, same that can be
++	 * found attached to the spi_nor SPI controller.
++	 */
++	nvram@1e1f0000 {
++		compatible = "brcm,nvram";
++		reg = <0x1e1f0000 0x00010000>;
++
++		et0macaddr: et0macaddr {
++		};
++	};
++};
++
++&gmac2 {
++	/*
++	 * The NVRAM curiously does not contain a MAC address
++	 * for et2 so since that is the only ethernet interface
++	 * actually in use on the platform, we use this et0 MAC
++	 * address for et2.
++	 */
++	nvmem-cells = <&et0macaddr>;
++	nvmem-cell-names = "mac-address";
++};
++
++&spi_nor {
++	status = "okay";
++};
++
++&nandcs {
++	/* Spansion S34ML01G2, 128MB with 128KB erase blocks */
++	partitions {
++		compatible = "fixed-partitions";
++		#address-cells = <1>;
++		#size-cells = <1>;
++
++		/*
++		 * This is called "nflash" in the vendor kernel with
++		 * "upgrade" and "rootfs" (probably using OpenWrt
++		 * splitpart). We call it "firmware" like standard tools
++		 * assume. The CFE loader contains incorrect information
++		 * about TRX partitions, ignore this, there are no TRX
++		 * partitions: this device uses SEAMA.
++		 */
++		firmware@0 {
++			label = "firmware";
++			reg = <0x00000000 0x08000000>;
++		};
++	};
++};
++
++&usb2 {
++	vcc-gpios = <&chipcommon 21 GPIO_ACTIVE_HIGH>;
++};
++
++&usb3 {
++	vcc-gpios = <&chipcommon 18 GPIO_ACTIVE_HIGH>;
++};
++
++&usb3_phy {
++	status = "okay";
++};
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@8 {
++			reg = <8>;
++			label = "cpu";
++			ethernet = <&gmac2>;
++			phy-mode = "rgmii";
++
++			fixed-link {
++				speed = <1000>;
++				full-duplex;
++			};
++		};
++	};
++};
diff --git a/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-bcm53016-Add-devicetree-for-D-Link-DWL-8610A.patch b/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-bcm53016-Add-devicetree-for-D-Link-DWL-8610A.patch
new file mode 100644
index 0000000000..cd24231839
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/035-v6.2-0001-ARM-dts-bcm53016-Add-devicetree-for-D-Link-DWL-8610A.patch
@@ -0,0 +1,165 @@
+From 9f66e1dd82e3186aee95282657512ca2aef1afe0 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij@linaro.org>
+Date: Wed, 19 Oct 2022 21:34:49 +0200
+Subject: [PATCH] ARM: dts: bcm53016: Add devicetree for D-Link DWL-8610AP
+
+This adds a device tree for the BCM53016-based D-Link DWL-8610AP
+access point wireless router.
+
+The TRX-format partitions had to be named "firmware" due to
+an OpenWrt patch that only accepts parting such nodes if they
+are named "firmware".
+
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+Link: https://lore.kernel.org/r/20221019193449.3036010-2-linus.walleij@linaro.org
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/Makefile                    |   1 +
+ .../boot/dts/bcm53016-dlink-dwl-8610ap.dts    | 131 ++++++++++++++++++
+ 2 files changed, 132 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm53016-dlink-dwl-8610ap.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -140,6 +140,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ 	bcm47094-netgear-r8500.dtb \
+ 	bcm47094-phicomm-k3.dtb \
+ 	bcm53015-meraki-mr26.dtb \
++	bcm53016-dlink-dwl-8610ap.dtb \
+ 	bcm53016-meraki-mr32.dtb \
+ 	bcm94708.dtb \
+ 	bcm94709.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm53016-dlink-dwl-8610ap.dts
+@@ -0,0 +1,131 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++/dts-v1/;
++
++#include "bcm4709.dtsi"
++#include "bcm5301x-nand-cs0-bch8.dtsi"
++#include <dt-bindings/leds/common.h>
++#include <dt-bindings/input/input.h>
++
++/ {
++	model = "D-Link DWL-8610AP";
++	compatible = "dlink,dwl-8610ap", "brcm,bcm53016", "brcm,bcm4708";
++
++	memory@0 {
++		device_type = "memory";
++		/* 512 MB RAM in 2 x Macronix D9PSH chips */
++		reg = <0x00000000 0x08000000>,
++		      <0x88000000 0x08000000>;
++	};
++
++	leds {
++		compatible = "gpio-leds";
++
++		power {
++			function = LED_FUNCTION_POWER;
++			color = <LED_COLOR_ID_GREEN>;
++			gpios = <&chipcommon 0 GPIO_ACTIVE_LOW>;
++			default-state = "on";
++		};
++
++		diag {
++			/* Actually "diag" unclear what this means */
++			function = LED_FUNCTION_INDICATOR;
++			color = <LED_COLOR_ID_RED>;
++			gpios = <&chipcommon 1 GPIO_ACTIVE_LOW>;
++			default-state = "on";
++			linux,default-trigger = "heartbeat";
++		};
++
++		wlan-2g {
++			function = LED_FUNCTION_WLAN;
++			color = <LED_COLOR_ID_GREEN>;
++			gpios = <&chipcommon 5 GPIO_ACTIVE_LOW>;
++		};
++
++		wlan-5g {
++			function = LED_FUNCTION_WLAN;
++			color = <LED_COLOR_ID_GREEN>;
++			gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
++		};
++	};
++
++	gpio_keys {
++		compatible = "gpio-keys";
++
++		button-reset {
++			debounce-interval = <100>;
++			wakeup-source;
++			linux,code = <KEY_RESTART>;
++			label = "reset";
++			/* This GPIO is actually stored in NVRAM, but it's not gonna change */
++			gpios = <&chipcommon 4 GPIO_ACTIVE_LOW>;
++		};
++	};
++
++	/*
++	 * Flash memory at 0x1e000000-0x1fffffff
++	 * Macronix 32 64KB blocks; total size 2MB, same that can be
++	 * found attached to the spi_nor SPI controller.
++	 */
++	nvram@1e080000 {
++		compatible = "brcm,nvram";
++		reg = <0x1e080000 0x00020000>;
++
++		et0macaddr: et0macaddr {
++		};
++
++		et1macaddr: et1macaddr {
++		};
++	};
++};
++
++&gmac0 {
++	nvmem-cells = <&et0macaddr>;
++	nvmem-cell-names = "mac-address";
++};
++
++&gmac1 {
++	nvmem-cells = <&et1macaddr>;
++	nvmem-cell-names = "mac-address";
++};
++
++&spi_nor {
++	/* Serial SPI NOR Flash MX 25L1606E */
++	status = "okay";
++};
++
++&nandcs {
++	/*
++	 * Spansion S34ML01G100TFI00 128 MB NAND Flash memory
++	 *
++	 * This ECC is a bit unorthodox but it is what the stock firmware
++	 * is using, so to be able to mount the original partitions
++	 * this is necessary.
++	 */
++	nand-ecc-strength = <5>;
++	partitions {
++		compatible = "fixed-partitions";
++		#address-cells = <1>;
++		#size-cells = <1>;
++
++		/* This is named nflash1.trx in CFE */
++		trx@0 {
++			label = "firmware";
++			reg = <0x00000000 0x02800000>;
++			compatible = "brcm,trx";
++		};
++
++		/* This is named nflash1.trx2 in CFE */
++		trx2@2800000 {
++			label = "firmware2";
++			reg = <0x02800000 0x02800000>;
++			compatible = "brcm,trx";
++		};
++
++		/* This is named nflash1.rwfs in CFE */
++		free@5000000 {
++			label = "free";
++			reg = <0x05000000 0x03000000>;
++		};
++	};
++};
diff --git a/target/linux/bcm53xx/patches-6.1/036-v6.2-bcma-support-SPROM-rev-11.patch b/target/linux/bcm53xx/patches-6.1/036-v6.2-bcma-support-SPROM-rev-11.patch
new file mode 100644
index 0000000000..5ebc78ca20
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/036-v6.2-bcma-support-SPROM-rev-11.patch
@@ -0,0 +1,28 @@
+From b9457a04eb89645049fdf427c13e6a18d5501895 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij@linaro.org>
+Date: Tue, 11 Oct 2022 14:24:40 +0200
+Subject: [PATCH] bcma: support SPROM rev 11
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Rev 11 works fine for me to set the MAC address of gmac0 and
+gmac1 in the D-Link DWL-8610AP.
+
+Cc: Rafał Miłecki <zajec5@gmail.com>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ drivers/bcma/sprom.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/bcma/sprom.c
++++ b/drivers/bcma/sprom.c
+@@ -170,7 +170,7 @@ static int bcma_sprom_valid(struct bcma_
+ 		return err;
+ 
+ 	revision = sprom[words - 1] & SSB_SPROM_REVISION_REV;
+-	if (revision != 8 && revision != 9 && revision != 10) {
++	if (revision < 8 || revision > 11) {
+ 		pr_err("Unsupported SPROM revision: %d\n", revision);
+ 		return -ENOENT;
+ 	}
diff --git a/target/linux/bcm53xx/patches-6.1/140-mtd-parsers-trx-parse-firmware-MTD-partitions-only.patch b/target/linux/bcm53xx/patches-6.1/140-mtd-parsers-trx-parse-firmware-MTD-partitions-only.patch
new file mode 100644
index 0000000000..e1933e75c7
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/140-mtd-parsers-trx-parse-firmware-MTD-partitions-only.patch
@@ -0,0 +1,43 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 13 Apr 2021 18:25:20 +0200
+Subject: [PATCH] mtd: parsers: trx: parse "firmware" MTD partitions only
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Parsing every partition with "compatible" set to "brcm,trx" results in
+parsing both: firmware partition and failsafe partition on devices that
+implement failsafe booting. This affects e.g. Linksys EA9500 which has:
+
+partition@200000 {
+	reg = <0x0200000 0x01d00000>;
+	compatible = "linksys,ns-firmware", "brcm,trx";
+};
+
+partition@1f00000 {
+	reg = <0x01f00000 0x01d00000>;
+	compatible = "linksys,ns-firmware", "brcm,trx";
+};
+
+Check for MTD partition name "firmware" before parsing. Recently added
+ofpart_linksys_ns.c creates "firmware" and "failsafe" depending on
+bootloader setup.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ drivers/mtd/parsers/parser_trx.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/mtd/parsers/parser_trx.c
++++ b/drivers/mtd/parsers/parser_trx.c
+@@ -92,6 +92,10 @@ static int parser_trx_parse(struct mtd_i
+ 	if (err != 0 && err != -EINVAL)
+ 		pr_err("failed to parse \"brcm,trx-magic\" DT attribute, using default: %d\n", err);
+ 
++	/* Don't parse any failsafe / backup partitions */
++	if (strcmp(mtd->name, "firmware"))
++		return -EINVAL;
++
+ 	parts = kcalloc(TRX_PARSER_MAX_PARTS, sizeof(struct mtd_partition),
+ 			GFP_KERNEL);
+ 	if (!parts)
diff --git a/target/linux/bcm53xx/patches-6.1/180-usb-xhci-add-support-for-performing-fake-doorbell.patch b/target/linux/bcm53xx/patches-6.1/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
new file mode 100644
index 0000000000..33066a84d8
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
@@ -0,0 +1,117 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Sat, 1 Oct 2016 22:54:48 +0200
+Subject: [PATCH] usb: xhci: add support for performing fake doorbell
+
+Broadcom's Northstar XHCI controllers seem to need a special start
+procedure to work correctly. There isn't any official documentation of
+this, the problem is that controller doesn't detect any connected
+devices with default setup. Moreover connecting USB device to controller
+that doesn't run properly can cause SoC's watchdog issues.
+
+A workaround that was successfully tested on multiple devices is to
+perform a fake doorbell. This patch adds code for doing this and enables
+it on BCM4708 family.
+---
+ drivers/usb/host/xhci-plat.c |  6 +++++
+ drivers/usb/host/xhci.c      | 63 +++++++++++++++++++++++++++++++++++++++++---
+ drivers/usb/host/xhci.h      |  1 +
+ 3 files changed, 67 insertions(+), 3 deletions(-)
+
+--- a/drivers/usb/host/xhci-plat.c
++++ b/drivers/usb/host/xhci-plat.c
+@@ -77,6 +77,8 @@ static int xhci_priv_resume_quirk(struct
+ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
+ {
+ 	struct xhci_plat_priv *priv = xhci_to_priv(xhci);
++	struct platform_device*pdev = to_platform_device(dev);
++	struct device_node *node = pdev->dev.of_node;
+ 
+ 	/*
+ 	 * As of now platform drivers don't provide MSI support so we ensure
+@@ -84,6 +86,9 @@ static void xhci_plat_quirks(struct devi
+ 	 * dev struct in order to setup MSI
+ 	 */
+ 	xhci->quirks |= XHCI_PLAT | priv->quirks;
++
++	if (node && of_machine_is_compatible("brcm,bcm4708"))
++		xhci->quirks |= XHCI_FAKE_DOORBELL;
+ }
+ 
+ /* called during probe() after chip reset completes */
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -161,6 +161,49 @@ int xhci_start(struct xhci_hcd *xhci)
+ 	return ret;
+ }
+ 
++/**
++ * xhci_fake_doorbell - Perform a fake doorbell on a specified slot
++ *
++ * Some controllers require a fake doorbell to start correctly. Without that
++ * they simply don't detect any devices.
++ */
++static int xhci_fake_doorbell(struct xhci_hcd *xhci, int slot_id)
++{
++	u32 temp;
++
++	/* Alloc a virt device for that slot */
++	if (!xhci_alloc_virt_device(xhci, slot_id, NULL, GFP_NOIO)) {
++		xhci_warn(xhci, "Could not allocate xHCI USB device data structures\n");
++		return -ENOMEM;
++	}
++
++	/* Ring fake doorbell for slot_id ep 0 */
++	xhci_ring_ep_doorbell(xhci, slot_id, 0, 0);
++	usleep_range(1000, 1500);
++
++	/* Read the status to check if HSE is set or not */
++	temp = readl(&xhci->op_regs->status);
++
++	/* Clear HSE if set */
++	if (temp & STS_FATAL) {
++		xhci_dbg(xhci, "HSE problem detected, status: 0x%08x\n", temp);
++		temp &= ~0x1fff;
++		temp |= STS_FATAL;
++		writel(temp, &xhci->op_regs->status);
++		usleep_range(1000, 1500);
++		readl(&xhci->op_regs->status);
++	}
++
++	/* Free virt device */
++	xhci_free_virt_device(xhci, slot_id);
++
++	/* We're done if controller is already running */
++	if (readl(&xhci->op_regs->command) & CMD_RUN)
++		return 0;
++
++	return xhci_start(xhci);
++}
++
+ /*
+  * Reset a halted HC.
+  *
+@@ -641,6 +684,14 @@ static int xhci_run_finished(struct xhci
+ 		return -ENODEV;
+ 	}
+ 
++	if (xhci->quirks & XHCI_FAKE_DOORBELL) {
++		int err = xhci_fake_doorbell(xhci, 1);
++		if (err) {
++			xhci_halt(xhci);
++			return err;
++		}
++	}
++
+ 	xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
+ 
+ 	if (xhci->quirks & XHCI_NEC_HOST)
+--- a/drivers/usb/host/xhci.h
++++ b/drivers/usb/host/xhci.h
+@@ -1899,6 +1899,7 @@ struct xhci_hcd {
+ #define XHCI_EP_CTX_BROKEN_DCS	BIT_ULL(42)
+ #define XHCI_SUSPEND_RESUME_CLKS	BIT_ULL(43)
+ #define XHCI_RESET_TO_DEFAULT	BIT_ULL(44)
++#define XHCI_FAKE_DOORBELL	BIT_ULL(45)
+ 
+ 	unsigned int		num_active_eps;
+ 	unsigned int		limit_active_eps;
diff --git a/target/linux/bcm53xx/patches-6.1/300-ARM-BCM5301X-Disable-MMU-and-Dcache-during-decompres.patch b/target/linux/bcm53xx/patches-6.1/300-ARM-BCM5301X-Disable-MMU-and-Dcache-during-decompres.patch
new file mode 100644
index 0000000000..034d5b52fc
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/300-ARM-BCM5301X-Disable-MMU-and-Dcache-during-decompres.patch
@@ -0,0 +1,101 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Wed, 24 Sep 2014 22:14:07 +0200
+Subject: [PATCH] ARM: BCM5301X: Disable MMU and Dcache during decompression
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Broadcom devices have broken CFE (bootloader) that leaves hardware in an
+invalid state. It causes problems with booting Linux. On Northstar
+devices kernel was randomly hanging in ~25% of tries during early init.
+Hangs used to happen at random places in the start_kernel. On BCM53573
+kernel doesn't even seem to start booting.
+
+To workaround this problem we need to do following very early:
+1) Clear 2 following bits in the SCTLR register:
+#define CR_M    (1 << 0)        /* MMU enable */
+#define CR_C    (1 << 2)        /* Dcache enable */
+2) Flush the whole D-cache
+3) Disable L2 cache
+
+Unfortunately this patch is not upstreamable as it does above things
+unconditionally. We can't check if we are running on Broadcom platform
+in any safe way and doing such hacks with ARCH_MULTI_V7 is unacceptable
+as it could break other devices support.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+
+--- a/arch/arm/boot/compressed/Makefile
++++ b/arch/arm/boot/compressed/Makefile
+@@ -35,6 +35,11 @@ ifeq ($(CONFIG_ARCH_ACORN),y)
+ OBJS		+= ll_char_wr.o font.o
+ endif
+ 
++ifeq ($(CONFIG_ARCH_BCM_5301X),y)
++OBJS		+= head-bcm_5301x-mpcore.o
++OBJS		+= cache-v7-min.o
++endif
++
+ ifeq ($(CONFIG_ARCH_SA1100),y)
+ OBJS		+= head-sa1100.o
+ endif
+--- /dev/null
++++ b/arch/arm/boot/compressed/head-bcm_5301x-mpcore.S
+@@ -0,0 +1,37 @@
++/*
++ *
++ * Platform specific tweaks.  This is merged into head.S by the linker.
++ *
++ */
++
++#include <linux/linkage.h>
++#include <asm/assembler.h>
++#include <asm/cp15.h>
++
++		.section        ".start", "ax"
++
++/*
++ * This code section is spliced into the head code by the linker
++ */
++
++__plat_uncompress_start:
++
++	@ Preserve r8/r7 i.e. kernel entry values
++	mov	r12, r8
++
++	@ Clear MMU enable and Dcache enable bits
++	mrc	p15, 0, r0, c1, c0, 0		@ Read SCTLR
++	bic	r0, #CR_C|CR_M
++	mcr	p15, 0, r0, c1, c0, 0		@ Write SCTLR
++	nop
++
++	@ Call the cache invalidation routine
++	bl	v7_flush_dcache_all
++	nop
++	mov	r0,#0
++	ldr	r3, =0x19022000			@ L2 cache controller, control reg
++	str	r0, [r3, #0x100]		@ Disable L2 cache
++	nop
++
++	@ Restore
++	mov	r8, r12
+--- a/arch/arm/boot/compressed/cache-v7-min.S
++++ b/arch/arm/boot/compressed/cache-v7-min.S
+@@ -12,6 +12,7 @@
+ 
+ #include <linux/linkage.h>
+ #include <linux/init.h>
++#include <asm/assembler.h>
+ 
+ 	__INIT
+ 
+@@ -63,7 +64,7 @@ loop2:
+  ARM(	orr	r11, r11, r9, lsl r2	)	@ factor index number into r11
+  THUMB(	lsl	r6, r9, r2		)
+  THUMB(	orr	r11, r11, r6		)	@ factor index number into r11
+-	mcr	p15, 0, r11, c7, c14, 2		@ clean & invalidate by set/way
++	mcr     p15, 0, r11, c7, c6, 2		@ clean & invalidate by set/way
+ 	subs	r9, r9, #1			@ decrement the index
+ 	bge	loop2
+ 	subs	r4, r4, #1			@ decrement the way
diff --git a/target/linux/bcm53xx/patches-6.1/304-ARM-dts-BCM5301X-Specify-switch-ports-for-remaining-.patch b/target/linux/bcm53xx/patches-6.1/304-ARM-dts-BCM5301X-Specify-switch-ports-for-remaining-.patch
new file mode 100644
index 0000000000..0fb29e99d3
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/304-ARM-dts-BCM5301X-Specify-switch-ports-for-remaining-.patch
@@ -0,0 +1,711 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Subject: [PATCH] ARM: dts: BCM5301X: Specify switch ports for remaining
+ devices
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+
+--- a/arch/arm/boot/dts/bcm4708-asus-rt-ac56u.dts
++++ b/arch/arm/boot/dts/bcm4708-asus-rt-ac56u.dts
+@@ -93,3 +93,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4708-asus-rt-ac68u.dts
++++ b/arch/arm/boot/dts/bcm4708-asus-rt-ac68u.dts
+@@ -83,3 +83,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "wan";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan1";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan2";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan3";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "lan4";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
++++ b/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
+@@ -149,3 +149,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4708-linksys-ea6300-v1.dts
++++ b/arch/arm/boot/dts/bcm4708-linksys-ea6300-v1.dts
+@@ -46,3 +46,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts
++++ b/arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts
+@@ -42,3 +42,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4708-netgear-r6300-v2.dts
++++ b/arch/arm/boot/dts/bcm4708-netgear-r6300-v2.dts
+@@ -86,3 +86,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
++++ b/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
+@@ -77,3 +77,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "wan";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan1";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan2";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan3";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "lan4";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
++++ b/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
+@@ -66,6 +66,38 @@
+ 	status = "okay";
+ };
+ 
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "wan";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan1";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan2";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan3";
++		};
++
++		port@7 {
++			reg = <7>;
++			label = "cpu";
++			ethernet = <&gmac1>;
++		};
++	};
++};
++
+ &nandcs {
+ 	partitions {
+ 		compatible = "fixed-partitions";
+--- a/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts
++++ b/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts
+@@ -130,3 +130,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4709-linksys-ea9200.dts
++++ b/arch/arm/boot/dts/bcm4709-linksys-ea9200.dts
+@@ -47,3 +47,45 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@8 {
++			reg = <8>;
++			label = "cpu";
++			ethernet = <&gmac2>;
++
++			fixed-link {
++				speed = <1000>;
++				full-duplex;
++			};
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm4709-netgear-r7000.dts
++++ b/arch/arm/boot/dts/bcm4709-netgear-r7000.dts
+@@ -104,3 +104,40 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "wan";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan1";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan2";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan3";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "lan4";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm47094-netgear-r8500.dts
++++ b/arch/arm/boot/dts/bcm47094-netgear-r8500.dts
+@@ -94,3 +94,45 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "wan";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan1";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan2";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan3";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "lan4";
++		};
++
++		port@8 {
++			reg = <8>;
++			label = "cpu";
++			ethernet = <&gmac2>;
++
++			fixed-link {
++				speed = <1000>;
++				full-duplex;
++			};
++		};
++	};
++};
+--- a/arch/arm/boot/dts/bcm47094-phicomm-k3.dts
++++ b/arch/arm/boot/dts/bcm47094-phicomm-k3.dts
+@@ -38,6 +38,38 @@
+ 	status = "okay";
+ };
+ 
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
++
+ &nandcs {
+ 	partitions {
+ 		compatible = "fixed-partitions";
+--- a/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
++++ b/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+@@ -91,6 +91,43 @@
+ 	};
+ };
+ 
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "wan";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan1";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan2";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan3";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "lan4";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
++
+ &spi_nor {
+ 	status = "okay";
+ 
+--- a/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
++++ b/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
+@@ -100,6 +100,43 @@
+ 	vcc-gpio = <&chipcommon 12 GPIO_ACTIVE_HIGH>;
+ };
+ 
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "wan";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan1";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan2";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan3";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "lan4";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
++
+ &spi_nor {
+ 	status = "okay";
+ 
+--- a/arch/arm/boot/dts/bcm47081-buffalo-wzr-900dhp.dts
++++ b/arch/arm/boot/dts/bcm47081-buffalo-wzr-900dhp.dts
+@@ -107,3 +107,41 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&srab {
++	status = "okay";
++
++	ports {
++		port@0 {
++			reg = <0>;
++			label = "lan1";
++		};
++
++		port@1 {
++			reg = <1>;
++			label = "lan2";
++		};
++
++		port@2 {
++			reg = <2>;
++			label = "lan3";
++		};
++
++		port@3 {
++			reg = <3>;
++			label = "lan4";
++		};
++
++		port@4 {
++			reg = <4>;
++			label = "wan";
++		};
++
++		port@5 {
++			reg = <5>;
++			label = "cpu";
++			ethernet = <&gmac0>;
++		};
++	};
++};
++
diff --git a/target/linux/bcm53xx/patches-6.1/310-ARM-BCM5301X-Add-DT-for-Netgear-R7900.patch b/target/linux/bcm53xx/patches-6.1/310-ARM-BCM5301X-Add-DT-for-Netgear-R7900.patch
new file mode 100644
index 0000000000..02340f4e9f
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/310-ARM-BCM5301X-Add-DT-for-Netgear-R7900.patch
@@ -0,0 +1,64 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Subject: [PATCH] ARM: BCM5301X: Add DT for Netgear R7900
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -125,6 +125,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ 	bcm4709-buffalo-wxr-1900dhp.dtb \
+ 	bcm4709-linksys-ea9200.dtb \
+ 	bcm4709-netgear-r7000.dtb \
++	bcm4709-netgear-r7900.dtb \
+ 	bcm4709-netgear-r8000.dtb \
+ 	bcm4709-tplink-archer-c9-v1.dtb \
+ 	bcm47094-asus-rt-ac88u.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm4709-netgear-r7900.dts
+@@ -0,0 +1,42 @@
++/*
++ * Broadcom BCM470X / BCM5301X ARM platform code.
++ * DTS for Netgear R7900
++ *
++ * Copyright (C) 2016 Rafał Miłecki <zajec5@gmail.com>
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++
++/dts-v1/;
++
++#include "bcm4709.dtsi"
++#include "bcm5301x-nand-cs0-bch8.dtsi"
++
++/ {
++	compatible = "netgear,r7900", "brcm,bcm4709", "brcm,bcm4708";
++	model = "Netgear R7900";
++
++	chosen {
++		bootargs = "console=ttyS0,115200";
++	};
++
++	memory {
++		reg = <0x00000000 0x08000000
++		       0x88000000 0x08000000>;
++	};
++
++	axi@18000000 {
++		usb3@23000 {
++			reg = <0x00023000 0x1000>;
++
++			#address-cells = <1>;
++			#size-cells = <1>;
++
++			vcc-gpio = <&chipcommon 0 GPIO_ACTIVE_HIGH>;
++		};
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
diff --git a/target/linux/bcm53xx/patches-6.1/315-ARM-dts-BCM5301X-Extend-RAM-to-full-256MB-for-Linksy.patch b/target/linux/bcm53xx/patches-6.1/315-ARM-dts-BCM5301X-Extend-RAM-to-full-256MB-for-Linksy.patch
new file mode 100644
index 0000000000..068d676962
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/315-ARM-dts-BCM5301X-Extend-RAM-to-full-256MB-for-Linksy.patch
@@ -0,0 +1,27 @@
+From e492f69e4da879db7b3e9a2290e5b6620f1335b5 Mon Sep 17 00:00:00 2001
+From: Aleksey Nasibulin <alealexpro100@ya.ru>
+Date: Thu, 13 Oct 2022 08:16:51 +0000
+Subject: [PATCH] ARM: dts: BCM5301X: Extend RAM to full 256MB for Linksys
+ EA6500 V2
+
+Linksys ea6500-v2 have 256MB of ram. Currently we only use 128MB.
+Expand the definition to use all the available RAM.
+
+Fixes: 03e96644d7a8 ("ARM: dts: BCM5301X: Add basic DT for Linksys EA6500 V2")
+Signed-off-by: Aleksey Nasibulin <alealexpro100@ya.ru>
+---
+ arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts
++++ b/arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts
+@@ -19,7 +19,8 @@
+ 
+ 	memory@0 {
+ 		device_type = "memory";
+-		reg = <0x00000000 0x08000000>;
++		reg = <0x00000000 0x08000000>,
++		      <0x88000000 0x08000000>;
+ 	};
+ 
+ 	gpio-keys {
diff --git a/target/linux/bcm53xx/patches-6.1/321-ARM-dts-BCM5301X-Describe-partition-formats.patch b/target/linux/bcm53xx/patches-6.1/321-ARM-dts-BCM5301X-Describe-partition-formats.patch
new file mode 100644
index 0000000000..f2861177dd
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/321-ARM-dts-BCM5301X-Describe-partition-formats.patch
@@ -0,0 +1,25 @@
+From 7166207bd1d8c46d09d640d46afc685df9bb9083 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Thu, 22 Nov 2018 09:21:49 +0100
+Subject: [PATCH] ARM: dts: BCM5301X: Describe partition formats
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+It's needed by OpenWrt for custom partitioning.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts
++++ b/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts
+@@ -35,6 +35,7 @@
+ 				partition@0 {
+ 					label = "firmware";
+ 					reg = <0x00000000 0x08000000>;
++					compatible = "seama";
+ 				};
+ 			};
+ 		};
diff --git a/target/linux/bcm53xx/patches-6.1/500-UBI-Detect-EOF-mark-and-erase-all-remaining-blocks.patch b/target/linux/bcm53xx/patches-6.1/500-UBI-Detect-EOF-mark-and-erase-all-remaining-blocks.patch
new file mode 100644
index 0000000000..209c57ca0b
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/500-UBI-Detect-EOF-mark-and-erase-all-remaining-blocks.patch
@@ -0,0 +1,59 @@
+From 2a2af518266a29323cf30c3f9ba9ef2ceb1dd84b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Thu, 16 Oct 2014 20:52:16 +0200
+Subject: [PATCH] UBI: Detect EOF mark and erase all remaining blocks
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/mtd/ubi/attach.c | 5 +++++
+ drivers/mtd/ubi/io.c     | 4 ++++
+ drivers/mtd/ubi/ubi.h    | 1 +
+ 3 files changed, 10 insertions(+)
+
+--- a/drivers/mtd/ubi/attach.c
++++ b/drivers/mtd/ubi/attach.c
+@@ -82,6 +82,9 @@ static int self_check_ai(struct ubi_devi
+ #define AV_ADD		BIT(1)
+ #define AV_FIND_OR_ADD	(AV_FIND | AV_ADD)
+ 
++/* Set on finding block with 0xdeadc0de, indicates erasing all blocks behind */
++bool erase_all_next;
++
+ /**
+  * find_or_add_av - internal function to find a volume, add a volume or do
+  *		    both (find and add if missing).
+@@ -1580,6 +1583,8 @@ int ubi_attach(struct ubi_device *ubi, i
+ 	if (!ai)
+ 		return -ENOMEM;
+ 
++	erase_all_next = false;
++
+ #ifdef CONFIG_MTD_UBI_FASTMAP
+ 	/* On small flash devices we disable fastmap in any case. */
+ 	if ((int)mtd_div_by_eb(ubi->mtd->size, ubi->mtd) <= UBI_FM_MAX_START) {
+--- a/drivers/mtd/ubi/io.c
++++ b/drivers/mtd/ubi/io.c
+@@ -717,6 +717,10 @@ int ubi_io_read_ec_hdr(struct ubi_device
+ 	}
+ 
+ 	magic = be32_to_cpu(ec_hdr->magic);
++	if (magic == 0xdeadc0de)
++		erase_all_next = true;
++	if (erase_all_next)
++		return read_err ? UBI_IO_FF_BITFLIPS : UBI_IO_FF;
+ 	if (magic != UBI_EC_HDR_MAGIC) {
+ 		if (mtd_is_eccerr(read_err))
+ 			return UBI_IO_BAD_HDR_EBADMSG;
+--- a/drivers/mtd/ubi/ubi.h
++++ b/drivers/mtd/ubi/ubi.h
+@@ -820,6 +820,7 @@ extern struct mutex ubi_devices_mutex;
+ extern struct blocking_notifier_head ubi_notifiers;
+ 
+ /* attach.c */
++extern bool erase_all_next;
+ struct ubi_ainf_peb *ubi_alloc_aeb(struct ubi_attach_info *ai, int pnum,
+ 				   int ec);
+ void ubi_free_aeb(struct ubi_attach_info *ai, struct ubi_ainf_peb *aeb);
diff --git a/target/linux/bcm53xx/patches-6.1/600-net-disable-GRO-by-default.patch b/target/linux/bcm53xx/patches-6.1/600-net-disable-GRO-by-default.patch
new file mode 100644
index 0000000000..9f6343c791
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/600-net-disable-GRO-by-default.patch
@@ -0,0 +1,36 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Mon, 20 Jun 2022 10:01:18 +0200
+Subject: [PATCH] net: disable GRO by default
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+In many cases GRO improves network performance however it comes at a
+cost of chacksums calculations. In case of slow CPU and missing hardware
+csum calculation support GRO can actually decrease network speed.
+
+On BCM4708 *disabling* GRO results in following NAT masquarade speed
+changes:
+1. 364 Mb/s → 396 Mb/s (packet steering disabled)
+2. 341 Mb/s → 566 Mb/s (packet steering enabled)
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ include/linux/netdev_features.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/include/linux/netdev_features.h
++++ b/include/linux/netdev_features.h
+@@ -242,10 +242,10 @@ static inline int find_next_netdev_featu
+ #define NETIF_F_UPPER_DISABLES	NETIF_F_LRO
+ 
+ /* changeable features with no special hardware requirements */
+-#define NETIF_F_SOFT_FEATURES	(NETIF_F_GSO | NETIF_F_GRO)
++#define NETIF_F_SOFT_FEATURES	(NETIF_F_GSO)
+ 
+ /* Changeable features with no special hardware requirements that defaults to off. */
+-#define NETIF_F_SOFT_FEATURES_OFF	(NETIF_F_GRO_FRAGLIST | NETIF_F_GRO_UDP_FWD)
++#define NETIF_F_SOFT_FEATURES_OFF	(NETIF_F_GRO_FRAGLIST | NETIF_F_GRO_UDP_FWD | NETIF_F_GRO)
+ 
+ #define NETIF_F_VLAN_FEATURES	(NETIF_F_HW_VLAN_CTAG_FILTER | \
+ 				 NETIF_F_HW_VLAN_CTAG_RX | \
diff --git a/target/linux/bcm53xx/patches-6.1/700-bgmac-reduce-max-frame-size-to-support-just-MTU-1500.patch b/target/linux/bcm53xx/patches-6.1/700-bgmac-reduce-max-frame-size-to-support-just-MTU-1500.patch
new file mode 100644
index 0000000000..3a2f4b06ed
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/700-bgmac-reduce-max-frame-size-to-support-just-MTU-1500.patch
@@ -0,0 +1,33 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Fri, 10 Jun 2022 13:10:47 +0200
+Subject: [PATCH] bgmac: reduce max frame size to support just MTU 1500
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+bgmac allocates new replacement buffer before handling each received
+frame. Allocating & DMA-preparing 9724 B each time consumes a lot of CPU
+time. Ideally bgmac should just respect currently set MTU but it isn't
+the case right now. For now just revert back to the old limited frame
+size.
+
+This change bumps NAT masquarade speed by ~95%.
+
+Ref: 8c7da63978f1 ("bgmac: configure MTU and add support for frames beyond 8192 byte size")
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ drivers/net/ethernet/broadcom/bgmac.h | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.h
++++ b/drivers/net/ethernet/broadcom/bgmac.h
+@@ -328,8 +328,7 @@
+ #define BGMAC_RX_FRAME_OFFSET			30		/* There are 2 unused bytes between header and real data */
+ #define BGMAC_RX_BUF_OFFSET			(NET_SKB_PAD + NET_IP_ALIGN - \
+ 						 BGMAC_RX_FRAME_OFFSET)
+-/* Jumbo frame size with FCS */
+-#define BGMAC_RX_MAX_FRAME_SIZE			9724
++#define BGMAC_RX_MAX_FRAME_SIZE			1536
+ #define BGMAC_RX_BUF_SIZE			(BGMAC_RX_FRAME_OFFSET + BGMAC_RX_MAX_FRAME_SIZE)
+ #define BGMAC_RX_ALLOC_SIZE			(SKB_DATA_ALIGN(BGMAC_RX_BUF_SIZE + BGMAC_RX_BUF_OFFSET) + \
+ 						 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
diff --git a/target/linux/bcm53xx/patches-6.1/905-BCM53573-minor-hacks.patch b/target/linux/bcm53xx/patches-6.1/905-BCM53573-minor-hacks.patch
new file mode 100644
index 0000000000..721cc3c154
--- /dev/null
+++ b/target/linux/bcm53xx/patches-6.1/905-BCM53573-minor-hacks.patch
@@ -0,0 +1,80 @@
+From 6f1c62440eb6846cb8045d7a5480ec7bbe47c96f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Mon, 15 Aug 2016 10:30:41 +0200
+Subject: [PATCH] BCM53573 minor hacks
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+
+--- a/arch/arm/boot/dts/bcm53573.dtsi
++++ b/arch/arm/boot/dts/bcm53573.dtsi
+@@ -54,6 +54,7 @@
+ 			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+ 			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+ 			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
++		clocks = <&ilp>;
+ 	};
+ 
+ 	clocks {
+--- a/drivers/bcma/main.c
++++ b/drivers/bcma/main.c
+@@ -330,14 +330,6 @@ static int bcma_register_devices(struct
+ 	}
+ #endif
+ 
+-#ifdef CONFIG_BCMA_SFLASH
+-	if (bus->drv_cc.sflash.present) {
+-		err = platform_device_register(&bcma_sflash_dev);
+-		if (err)
+-			bcma_err(bus, "Error registering serial flash\n");
+-	}
+-#endif
+-
+ #ifdef CONFIG_BCMA_NFLASH
+ 	if (bus->drv_cc.nflash.present) {
+ 		err = platform_device_register(&bcma_nflash_dev);
+@@ -415,6 +407,14 @@ int bcma_bus_register(struct bcma_bus *b
+ 			bcma_register_core(bus, core);
+ 	}
+ 
++#ifdef CONFIG_BCMA_SFLASH
++	if (bus->drv_cc.sflash.present) {
++		err = platform_device_register(&bcma_sflash_dev);
++		if (err)
++			bcma_err(bus, "Error registering serial flash\n");
++	}
++#endif
++
+ 	/* Try to get SPROM */
+ 	err = bcma_sprom_get(bus);
+ 	if (err == -ENOENT) {
+--- a/drivers/clocksource/arm_arch_timer.c
++++ b/drivers/clocksource/arm_arch_timer.c
+@@ -14,6 +14,7 @@
+ #include <linux/smp.h>
+ #include <linux/cpu.h>
+ #include <linux/cpu_pm.h>
++#include <linux/clk.h>
+ #include <linux/clockchips.h>
+ #include <linux/clocksource.h>
+ #include <linux/clocksource_ids.h>
+@@ -1021,6 +1022,16 @@ static void __init arch_timer_of_configu
+ 	if (of_property_read_u32(np, "clock-frequency", &arch_timer_rate))
+ 		arch_timer_rate = rate;
+ 
++	/* Get clk rate through clk driver if present */
++	if (!arch_timer_rate) {
++		struct clk *clk = of_clk_get(np, 0);
++
++		if (!IS_ERR(clk)) {
++			if (!clk_prepare_enable(clk))
++				arch_timer_rate = clk_get_rate(clk);
++		}
++	}
++
+ 	/* Check the timer frequency. */
+ 	if (validate_timer_rate())
+ 		pr_warn("frequency not available\n");