bcm53xx: add support for the kernel 4.19

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2024-10-19 14:08:17 +02:00 · 2018-12-27 07:58:48 +01:00 · 2018-12-27 07:58:48 +01:00 · 75b134c4c5
commit 75b134c4c5
parent 7a7d19abcf
22 changed files with 2097 additions and 0 deletions
--- a/target/linux/bcm53xx/config-4.19
+++ b/target/linux/bcm53xx/config-4.19
@ -0,0 +1,363 @@
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM_5301X=y
+CONFIG_ARCH_BCM_53573=y
+CONFIG_ARCH_BCM_IPROC=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+CONFIG_ARCH_HAS_SET_MEMORY=y
+CONFIG_ARCH_HAS_SG_CHAIN=y
+CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
+CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
+CONFIG_ARCH_HAS_TICK_BROADCAST=y
+CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MULTIPLATFORM=y
+# CONFIG_ARCH_MULTI_CPU_AUTO is not set
+CONFIG_ARCH_MULTI_V6_V7=y
+CONFIG_ARCH_MULTI_V7=y
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y
+# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
+# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ARM=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ARCH_TIMER=y
+CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
+# CONFIG_ARM_ATAG_DTB_COMPAT is not set
+# CONFIG_ARM_CPU_SUSPEND is not set
+CONFIG_ARM_ERRATA_754322=y
+CONFIG_ARM_ERRATA_764369=y
+CONFIG_ARM_ERRATA_775420=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_GLOBAL_TIMER=y
+CONFIG_ARM_HAS_SG_CHAIN=y
+CONFIG_ARM_HEAVY_MB=y
+CONFIG_ARM_L1_CACHE_SHIFT=6
+CONFIG_ARM_L1_CACHE_SHIFT_6=y
+# CONFIG_ARM_LPAE is not set
+CONFIG_ARM_PATCH_IDIV=y
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+# CONFIG_ARM_SP805_WATCHDOG is not set
+CONFIG_ARM_THUMB=y
+# CONFIG_ARM_THUMBEE is not set
+CONFIG_ARM_VIRT_EXT=y
+CONFIG_ATAGS=y
+CONFIG_AUTO_ZRELADDR=y
+CONFIG_BCM47XX_NVRAM=y
+CONFIG_BCM47XX_SPROM=y
+CONFIG_BCM47XX_WDT=y
+CONFIG_BCMA=y
+CONFIG_BCMA_BLOCKIO=y
+CONFIG_BCMA_DEBUG=y
+CONFIG_BCMA_DRIVER_GMAC_CMN=y
+CONFIG_BCMA_DRIVER_GPIO=y
+CONFIG_BCMA_DRIVER_PCI=y
+CONFIG_BCMA_HOST_PCI=y
+CONFIG_BCMA_HOST_PCI_POSSIBLE=y
+CONFIG_BCMA_HOST_SOC=y
+CONFIG_BCMA_SFLASH=y
+CONFIG_BCM_NET_PHYLIB=y
+CONFIG_BCM_NS_THERMAL=y
+CONFIG_BGMAC=y
+CONFIG_BGMAC_BCMA=y
+# CONFIG_BGMAC_PLATFORM is not set
+CONFIG_BLK_MQ_PCI=y
+CONFIG_BOUNCE=y
+CONFIG_BROADCOM_PHY=y
+CONFIG_CACHE_L2X0=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK=y
+CONFIG_CLKSRC_MMIO=y
+# CONFIG_CLK_BCM_NS2 is not set
+CONFIG_CLK_BCM_NSP=y
+# CONFIG_CLK_BCM_SR is not set
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_IPROC=y
+CONFIG_CPU_32v6K=y
+CONFIG_CPU_32v7=y
+CONFIG_CPU_ABRT_EV7=y
+# CONFIG_CPU_BPREDICT_DISABLE is not set
+CONFIG_CPU_CACHE_V7=y
+CONFIG_CPU_CACHE_VIPT=y
+CONFIG_CPU_COPY_V6=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_CPU_HAS_ASID=y
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_PABRT_V7=y
+CONFIG_CPU_RMAP=y
+CONFIG_CPU_THUMB_CAPABLE=y
+CONFIG_CPU_TLB_V7=y
+CONFIG_CPU_V7=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_ACOMP2=y
+CONFIG_CRYPTO_AEAD=y
+CONFIG_CRYPTO_AEAD2=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
+CONFIG_CRYPTO_NULL2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BCM_5301X=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_LL=y
+CONFIG_DEBUG_LL_INCLUDE="debug/8250.S"
+CONFIG_DEBUG_UART_8250=y
+# CONFIG_DEBUG_UART_8250_FLOW_CONTROL is not set
+CONFIG_DEBUG_UART_8250_SHIFT=0
+CONFIG_DEBUG_UART_PHYS=0x18000300
+CONFIG_DEBUG_UART_VIRT=0xf1000300
+CONFIG_DEBUG_UNCOMPRESS=y
+CONFIG_DEBUG_USER=y
+CONFIG_DTC=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_EXTCON=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+CONFIG_FRAME_POINTER=y
+# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ARCH_TOPOLOGY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PHY=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+CONFIG_GPIO_74X164=y
+CONFIG_GPIO_SYSFS=y
+# CONFIG_GRO_CELLS is not set
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+CONFIG_HAVE_ARCH_AUDITSYSCALL=y
+CONFIG_HAVE_ARCH_BITREVERSE=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_ARM_ARCH_TIMER=y
+CONFIG_HAVE_ARM_SCU=y
+CONFIG_HAVE_ARM_SMCCC=y
+CONFIG_HAVE_ARM_TWD=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_CC_STACKPROTECTOR=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_OPTPROBES=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_PROC_CPU=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_SMP=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_UID16=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_HIGHMEM=y
+# CONFIG_HIGHPTE is not set
+CONFIG_HZ_FIXED=0
+CONFIG_HZ_PERIODIC=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IOMMU_HELPER=y
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_LIBFDT=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+CONFIG_MDIO_BCM_IPROC=y
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_BUS_MUX=y
+# CONFIG_MDIO_BUS_MUX_BCM_IPROC is not set
+CONFIG_MDIO_BUS_MUX_MMIOREG=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MFD_SYSCON=y
+CONFIG_MIGHT_HAVE_CACHE_L2X0=y
+CONFIG_MIGHT_HAVE_PCI=y
+CONFIG_MODULES_USE_ELF_REL=y
+CONFIG_MTD_BCM47XXSFLASH=y
+CONFIG_MTD_BCM47XX_PARTS=y
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_BRCMNAND=y
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_PARSER_TRX=y
+# CONFIG_MTD_PHYSMAP_OF is not set
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPLIT_SEAMA_FW=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BEB_LIMIT=20
+CONFIG_MTD_UBI_BLOCK=y
+# CONFIG_MTD_UBI_FASTMAP is not set
+# CONFIG_MTD_UBI_GLUEBI is not set
+CONFIG_MTD_UBI_WL_THRESHOLD=4096
+CONFIG_MULTI_IRQ_HANDLER=y
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NO_BOOTMEM=y
+CONFIG_NR_CPUS=2
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_ADDRESS_PCI=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_PCI=y
+CONFIG_OF_PCI_IRQ=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_OUTER_CACHE=y
+CONFIG_OUTER_CACHE_SYNC=y
+CONFIG_PADATA=y
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PCI=y
+CONFIG_PCIE_IPROC=y
+CONFIG_PCIE_IPROC_BCMA=y
+# CONFIG_PCIE_IPROC_PLATFORM is not set
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DOMAINS_GENERIC=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+# CONFIG_PHY_BCM_NS_USB2 is not set
+# CONFIG_PHY_BCM_NS_USB3 is not set
+# CONFIG_PHY_BRCM_SATA is not set
+# CONFIG_PHY_NS2_USB_DRD is not set
+CONFIG_PINCTRL=y
+# CONFIG_PINCTRL_IPROC_GPIO is not set
+CONFIG_PINCTRL_NS=y
+# CONFIG_PINCTRL_NS2_MUX is not set
+# CONFIG_PL310_ERRATA_588369 is not set
+# CONFIG_PL310_ERRATA_727915 is not set
+# CONFIG_PL310_ERRATA_753970 is not set
+# CONFIG_PL310_ERRATA_769419 is not set
+CONFIG_RATIONAL=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_RFS_ACCEL=y
+CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+# CONFIG_SCHED_INFO is not set
+# CONFIG_SCSI_DMA is not set
+CONFIG_SERIAL_8250_FSL=y
+# CONFIG_SERIAL_AMBA_PL011 is not set
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SMP=y
+CONFIG_SMP_ON_UP=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SPI=y
+# CONFIG_SPI_BCM53XX is not set
+CONFIG_SPI_BCM_QSPI=y
+CONFIG_SPI_BITBANG=y
+CONFIG_SPI_GPIO=y
+CONFIG_SPI_MASTER=y
+CONFIG_SRCU=y
+CONFIG_SWCONFIG=y
+CONFIG_SWCONFIG_B53=y
+# CONFIG_SWCONFIG_B53_MMAP_DRIVER is not set
+CONFIG_SWCONFIG_B53_PHY_DRIVER=y
+CONFIG_SWCONFIG_B53_PHY_FIXUP=y
+CONFIG_SWCONFIG_B53_SRAB_DRIVER=y
+CONFIG_SWIOTLB=y
+CONFIG_SWPHY=y
+CONFIG_SWP_EMULATE=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+# CONFIG_THUMB2_KERNEL is not set
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TREE_RCU=y
+CONFIG_TREE_SRCU=y
+CONFIG_UBIFS_FS=y
+# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
+CONFIG_UBIFS_FS_LZO=y
+CONFIG_UBIFS_FS_ZLIB=y
+CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+CONFIG_USB_SUPPORT=y
+CONFIG_USE_OF=y
+CONFIG_VECTORS_BASE=0xffff0000
+# CONFIG_VFP is not set
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XPS=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y
--- a/target/linux/bcm53xx/patches-4.19/030-v4.20-0001-ARM-dts-BCM5301X-Specify-flash-partitions.patch
+++ b/target/linux/bcm53xx/patches-4.19/030-v4.20-0001-ARM-dts-BCM5301X-Specify-flash-partitions.patch
@ -0,0 +1,167 @@
+From b0465fdfdd7e7c1afe2fae1cb36b94e1ce89732e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Sat, 28 Jul 2018 14:13:57 +0200
+Subject: [PATCH] ARM: dts: BCM5301X: Specify flash partitions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Most devices use Broadcom standard partitions which allows them to be
+described with the "brcm,bcm947xx-cfe-partitions". Exceptions are:
+1) TP-LINK devices which use "os-image" partition with TRX containing
+   kernel only + separated rootfs partition.
+2) Asus RT-AC87U with custom "asus" partition.
+
+This commit also removes undocumented and unsupported linux,part-probe
+binding which got accidentally upstreamed while describing SPI
+controller.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts | 28 +++++++++++++++++++
+ arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts        | 31 ++++++++++++++++++++++
+ arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts  | 28 +++++++++++++++++++
+ arch/arm/boot/dts/bcm5301x-nand-cs0.dtsi           |  4 +++
+ arch/arm/boot/dts/bcm5301x.dtsi                    |  5 +++-
+ 5 files changed, 95 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+++ b/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+@@ -94,6 +94,34 @@
+ 
+ &spi_nor {
+ 	status = "okay";
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot@0 {
+			label = "boot";
+			reg = <0x000000 0x040000>;
+			read-only;
+		};
+
+		os-image@100000 {
+			label = "os-image";
+			reg = <0x040000 0x200000>;
+			compatible = "brcm,trx";
+		};
+
+		rootfs@240000 {
+			label = "rootfs";
+			reg = <0x240000 0xc00000>;
+		};
+
+		nvram@ff0000 {
+			label = "nvram";
+			reg = <0xff0000 0x010000>;
+		};
+	};
+ };
+ 
+ &usb2 {
+--- a/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
+++ b/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
+@@ -66,3 +66,34 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
+
+&nandcs {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot@0 {
+			label = "boot";
+			reg = <0x00000000 0x00080000>;
+			read-only;
+		};
+
+		nvram@80000 {
+			label = "nvram";
+			reg = <0x00080000 0x00180000>;
+		};
+
+		firmware@200000 {
+			label = "firmware";
+			reg = <0x00200000 0x07cc0000>;
+			compatible = "brcm,trx";
+		};
+
+		asus@7ec0000 {
+			label = "asus";
+			reg = <0x07ec0000 0x00140000>;
+			read-only;
+		};
+	};
+};
+--- a/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
+++ b/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
+@@ -103,6 +103,34 @@
+ 
+ &spi_nor {
+ 	status = "okay";
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot@0 {
+			label = "boot";
+			reg = <0x000000 0x040000>;
+			read-only;
+		};
+
+		os-image@100000 {
+			label = "os-image";
+			reg = <0x040000 0x200000>;
+			compatible = "brcm,trx";
+		};
+
+		rootfs@240000 {
+			label = "rootfs";
+			reg = <0x240000 0xc00000>;
+		};
+
+		nvram@ff0000 {
+			label = "nvram";
+			reg = <0xff0000 0x010000>;
+		};
+	};
+ };
+ 
+ &usb3_phy {
+--- a/arch/arm/boot/dts/bcm5301x-nand-cs0.dtsi
+++ b/arch/arm/boot/dts/bcm5301x-nand-cs0.dtsi
+@@ -12,6 +12,10 @@
+ 			reg = <0>;
+ 			#address-cells = <1>;
+ 			#size-cells = <1>;
+
+			partitions {
+				compatible = "brcm,bcm947xx-cfe-partitions";
+			};
+ 		};
+ 	};
+ };
+--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -475,8 +475,11 @@
+ 			compatible = "jedec,spi-nor";
+ 			reg = <0>;
+ 			spi-max-frequency = <20000000>;
+-			linux,part-probe = "ofpart", "bcm47xxpart";
+ 			status = "disabled";
+
+			partitions {
+				compatible = "brcm,bcm947xx-cfe-partitions";
+			};
+ 		};
+ 	};
+ 
--- a/target/linux/bcm53xx/patches-4.19/031-v4.21-0001-ARM-dts-BCM5301X-Relicense-BCM47081-BCM4709-files-to.patch
+++ b/target/linux/bcm53xx/patches-4.19/031-v4.21-0001-ARM-dts-BCM5301X-Relicense-BCM47081-BCM4709-files-to.patch
@ -0,0 +1,58 @@
+From 26ff86f7794b9466481ccf29ac79925d327f106d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Thu, 20 Sep 2018 13:18:47 +0200
+Subject: [PATCH] ARM: dts: BCM5301X: Relicense BCM47081/BCM4709 files to the
+ GPL 2.0+ / MIT
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This matches licensing used by other BCM5301X files and is preferred as:
+1) GPL 2.0+ makes it clearly compatible with Linux kernel
+2) MIT is also permissive but preferred over ISC
+
+Both files were fully developed by me. Commits touching them were signed
+by Florian and Hauke due to submitting process only.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm47081.dtsi | 13 +------------
+ arch/arm/boot/dts/bcm4709.dtsi  |  3 +--
+ 2 files changed, 2 insertions(+), 14 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm47081.dtsi
+++ b/arch/arm/boot/dts/bcm47081.dtsi
+@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+ /*
+  * Broadcom BCM470X / BCM5301X ARM platform code.
+  * DTS for BCM47081 SoC.
+  *
+  * Copyright © 2014 Rafał Miłecki <zajec5@gmail.com>
+- *
+- * Permission to use, copy, modify, and/or distribute this software for any
+- * purpose with or without fee is hereby granted, provided that the above
+- * copyright notice and this permission notice appear in all copies.
+- *
+- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+- * PERFORMANCE OF THIS SOFTWARE.
+  */
+ 
+ #include "bcm5301x.dtsi"
+--- a/arch/arm/boot/dts/bcm4709.dtsi
+++ b/arch/arm/boot/dts/bcm4709.dtsi
+@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+ /*
+  * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
+- *
+- * Licensed under the ISC license.
+  */
+ 
+ #include "bcm4708.dtsi"
--- a/target/linux/bcm53xx/patches-4.19/031-v4.21-0002-ARM-dts-BCM5301X-Relicense-BCM47094-file-to-the-GPL-.patch
+++ b/target/linux/bcm53xx/patches-4.19/031-v4.21-0002-ARM-dts-BCM5301X-Relicense-BCM47094-file-to-the-GPL-.patch
@ -0,0 +1,33 @@
+From d10967344375026ca8762b6080dec2585d895906 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Thu, 20 Sep 2018 13:20:19 +0200
+Subject: [PATCH] ARM: dts: BCM5301X: Relicense BCM47094 file to the GPL 2.0+ /
+ MIT
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This matches licensing used by other BCM5301X files and is preferred as:
+1) GPL 2.0+ makes it clearly compatible with Linux kernel
+2) MIT is also permissive but preferred over ISC
+
+This file has been developed by me & once modified by Vivek.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Acked-by: Vivek Unune <npcomplete13@gmail.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm47094.dtsi | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm47094.dtsi
+++ b/arch/arm/boot/dts/bcm47094.dtsi
+@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+ /*
+  * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
+- *
+- * Licensed under the ISC license.
+  */
+ 
+ #include "bcm4708.dtsi"
--- a/target/linux/bcm53xx/patches-4.19/031-v4.21-0003-ARM-dts-BCM53573-Relicense-Tenda-AC9-file-to-the-GPL.patch
+++ b/target/linux/bcm53xx/patches-4.19/031-v4.21-0003-ARM-dts-BCM53573-Relicense-Tenda-AC9-file-to-the-GPL.patch
@ -0,0 +1,32 @@
+From 1c9001b4f69a37820862286b3bbcdde152a52dcf Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Thu, 20 Sep 2018 13:37:47 +0200
+Subject: [PATCH] ARM: dts: BCM53573: Relicense Tenda AC9 file to the GPL 2.0+
+ / MIT
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This matches licensing used by most of BCM5301X files and is preferred as:
+1) GPL 2.0+ makes it clearly compatible with Linux kernel
+2) MIT is also permissive but preferred over ISC
+
+This file was fully developed by me.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm47189-tenda-ac9.dts | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
+++ b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
+@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+ /*
+  * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
+- *
+- * Licensed under the ISC license.
+  */
+ 
+ /dts-v1/;
--- a/target/linux/bcm53xx/patches-4.19/031-v4.21-0004-ARM-dts-BCM53573-Relicense-SoC-file-to-the-GPL-2.0-M.patch
+++ b/target/linux/bcm53xx/patches-4.19/031-v4.21-0004-ARM-dts-BCM53573-Relicense-SoC-file-to-the-GPL-2.0-M.patch
@ -0,0 +1,33 @@
+From ca3a6e705cad10662827093d5426abe078861793 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Thu, 20 Sep 2018 13:39:28 +0200
+Subject: [PATCH] ARM: dts: BCM53573: Relicense SoC file to the GPL 2.0+ / MIT
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This matches licensing used by most of BCM5301X files and is preferred as:
+1) GPL 2.0+ makes it clearly compatible with Linux kernel
+2) MIT is also permissive but preferred over ISC
+
+This file has been developed by me & once modified by Rob dropping a
+single leading zero in an UART address.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Acked-by: Rob Herring <robh@kernel.org>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm53573.dtsi | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm53573.dtsi
+++ b/arch/arm/boot/dts/bcm53573.dtsi
+@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+ /*
+  * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
+- *
+- * Licensed under the ISC license.
+  */
+ 
+ #include <dt-bindings/gpio/gpio.h>
--- a/target/linux/bcm53xx/patches-4.19/031-v4.21-0005-ARM-dts-BCM5301X-Add-basic-DT-for-Linksys-EA6500-V2.patch
+++ b/target/linux/bcm53xx/patches-4.19/031-v4.21-0005-ARM-dts-BCM5301X-Add-basic-DT-for-Linksys-EA6500-V2.patch
@ -0,0 +1,75 @@
+From 03e96644d7a810916fc4997d572577e876908b18 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ren=C3=A9=20Kjellerup?= <rk.katana.steel@gmail.com>
+Date: Mon, 1 Oct 2018 15:07:16 -0700
+Subject: [PATCH] ARM: dts: BCM5301X: Add basic DT for Linksys EA6500 V2
+
+It is wireless home router based on BCM4708A0 with BCM4360 + BCM4331
+wireless chipsets. The BCM4331 5GHz chip currently isn't supported only
+due to missing compatible firmware.
+
+Signed-off-by: Rene Kjellerup <rk.katana.steel@gmail.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/Makefile                      |  1 +
+ arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts | 45 +++++++++++++++++++++++++
+ 2 files changed, 46 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts
+
+--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
+@@ -88,6 +88,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ 	bcm4708-asus-rt-ac68u.dtb \
+ 	bcm4708-buffalo-wzr-1750dhp.dtb \
+ 	bcm4708-linksys-ea6300-v1.dtb \
+	bcm4708-linksys-ea6500-v2.dtb \
+ 	bcm4708-luxul-xap-1510.dtb \
+ 	bcm4708-luxul-xwc-1000.dtb \
+ 	bcm4708-netgear-r6250.dtb \
+--- /dev/null
+++ b/arch/arm/boot/dts/bcm4708-linksys-ea6500-v2.dts
+@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl>
+ * Copyright (C) 2018 Rene Kjellerup <rk.katana.steel@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "bcm4708.dtsi"
+#include "bcm5301x-nand-cs0-bch8.dtsi"
+
+/ {
+	compatible = "linksys,ea6500-v2", "brcm,bcm4708";
+	model = "Linksys EA6500 V2";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	memory {
+		reg = <0x00000000 0x08000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		wps {
+			label = "WPS";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&chipcommon 7 GPIO_ACTIVE_LOW>;
+		};
+
+		restart {
+			label = "Reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&usb3_phy {
+	status = "okay";
+};
--- a/target/linux/bcm53xx/patches-4.19/031-v4.21-0006-ARM-dts-BCM5301X-Describe-Northstar-pins-mux-control.patch
+++ b/target/linux/bcm53xx/patches-4.19/031-v4.21-0006-ARM-dts-BCM5301X-Describe-Northstar-pins-mux-control.patch
@ -0,0 +1,77 @@
+From 9994241ac97cb84d1df98fdc172d3cc6b04b11bf Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Fri, 9 Nov 2018 09:56:49 +0100
+Subject: [PATCH] ARM: dts: BCM5301X: Describe Northstar pins mux controller
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This describes hardware & will allow referencing pin functions. The
+first usage is UART1 which allows supporting devices using it.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm5301x.dtsi | 44 +++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 44 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -37,6 +37,8 @@
+ 			reg = <0x0400 0x100>;
+ 			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ 			clocks = <&iprocslow>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinmux_uart1>;
+ 			status = "disabled";
+ 		};
+ 	};
+@@ -391,6 +393,48 @@
+ 		status = "disabled";
+ 	};
+ 
+	dmu@1800c000 {
+		compatible = "simple-bus";
+		ranges = <0 0x1800c000 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		cru@100 {
+			compatible = "simple-bus";
+			reg = <0x100 0x1a4>;
+			ranges;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			pin-controller@1c0 {
+				compatible = "brcm,bcm4708-pinmux";
+				reg = <0x1c0 0x24>;
+				reg-names = "cru_gpio_control";
+
+				spi-pins {
+					groups = "spi_grp";
+					function = "spi";
+				};
+
+				i2c {
+					groups = "i2c_grp";
+					function = "i2c";
+				};
+
+				pwm {
+					groups = "pwm0_grp", "pwm1_grp",
+						 "pwm2_grp", "pwm3_grp";
+					function = "pwm";
+				};
+
+				pinmux_uart1: uart1 {
+					groups = "uart1_grp";
+					function = "uart1";
+				};
+			};
+		};
+	};
+
+ 	lcpll0: lcpll0@1800c100 {
+ 		#clock-cells = <1>;
+ 		compatible = "brcm,nsp-lcpll0";
--- a/target/linux/bcm53xx/patches-4.19/080-v4.20-0001-pinctrl-bcm-add-Northstar-driver.patch
+++ b/target/linux/bcm53xx/patches-4.19/080-v4.20-0001-pinctrl-bcm-add-Northstar-driver.patch
@ -0,0 +1,427 @@
+From c12fb1774deaa9c9408b19db8d43d3612f6e47a0 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Wed, 26 Sep 2018 21:31:03 +0200
+Subject: [PATCH] pinctrl: bcm: add Northstar driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This driver provides support for Northstar mux controller. It differs
+from Northstar Plus one so a new binding and driver were needed.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ drivers/pinctrl/bcm/Kconfig      |  13 ++
+ drivers/pinctrl/bcm/Makefile     |   1 +
+ drivers/pinctrl/bcm/pinctrl-ns.c | 372 +++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 386 insertions(+)
+ create mode 100644 drivers/pinctrl/bcm/pinctrl-ns.c
+
+--- a/drivers/pinctrl/bcm/Kconfig
+++ b/drivers/pinctrl/bcm/Kconfig
+@@ -73,6 +73,19 @@ config PINCTRL_CYGNUS_MUX
+ 	  configuration, with the exception that certain individual pins
+ 	  can be overridden to GPIO function
+ 
+config PINCTRL_NS
+	bool "Broadcom Northstar pins driver"
+	depends on OF && (ARCH_BCM_5301X || COMPILE_TEST)
+	select PINMUX
+	select GENERIC_PINCONF
+	default ARCH_BCM_5301X
+	help
+	  Say yes here to enable the Broadcom NS SoC pins driver.
+
+	  The Broadcom Northstar pins driver supports muxing multi-purpose pins
+	  that can be used for various functions (e.g. SPI, I2C, UART) as well
+	  as GPIOs.
+
+ config PINCTRL_NSP_GPIO
+ 	bool "Broadcom NSP GPIO (with PINCONF) driver"
+ 	depends on OF_GPIO && (ARCH_BCM_NSP || COMPILE_TEST)
+--- a/drivers/pinctrl/bcm/Makefile
+++ b/drivers/pinctrl/bcm/Makefile
+@@ -5,6 +5,7 @@ obj-$(CONFIG_PINCTRL_BCM281XX)		+= pinct
+ obj-$(CONFIG_PINCTRL_BCM2835)		+= pinctrl-bcm2835.o
+ obj-$(CONFIG_PINCTRL_IPROC_GPIO)	+= pinctrl-iproc-gpio.o
+ obj-$(CONFIG_PINCTRL_CYGNUS_MUX)	+= pinctrl-cygnus-mux.o
+obj-$(CONFIG_PINCTRL_NS)		+= pinctrl-ns.o
+ obj-$(CONFIG_PINCTRL_NSP_GPIO)		+= pinctrl-nsp-gpio.o
+ obj-$(CONFIG_PINCTRL_NS2_MUX)		+= pinctrl-ns2-mux.o
+ obj-$(CONFIG_PINCTRL_NSP_MUX)		+= pinctrl-nsp-mux.o
+--- /dev/null
+++ b/drivers/pinctrl/bcm/pinctrl-ns.c
+@@ -0,0 +1,372 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 Rafał Miłecki <rafal@milecki.pl>
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#define FLAG_BCM4708		BIT(1)
+#define FLAG_BCM4709		BIT(2)
+#define FLAG_BCM53012		BIT(3)
+
+struct ns_pinctrl {
+	struct device *dev;
+	unsigned int chipset_flag;
+	struct pinctrl_dev *pctldev;
+	void __iomem *base;
+
+	struct pinctrl_desc pctldesc;
+	struct ns_pinctrl_group *groups;
+	unsigned int num_groups;
+	struct ns_pinctrl_function *functions;
+	unsigned int num_functions;
+};
+
+/*
+ * Pins
+ */
+
+static const struct pinctrl_pin_desc ns_pinctrl_pins[] = {
+	{ 0, "spi_clk", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 1, "spi_ss", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 2, "spi_mosi", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 3, "spi_miso", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 4, "i2c_scl", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 5, "i2c_sda", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 6, "mdc", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 7, "mdio", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 8, "pwm0", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 9, "pwm1", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 10, "pwm2", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 11, "pwm3", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 12, "uart1_rx", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 13, "uart1_tx", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 14, "uart1_cts", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 15, "uart1_rts", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 16, "uart2_rx", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 17, "uart2_tx", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
+/* TODO { ??, "xtal_out", (void *)(FLAG_BCM4709) }, */
+	{ 22, "sdio_pwr", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
+	{ 23, "sdio_en_1p8v", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
+};
+
+/*
+ * Groups
+ */
+
+struct ns_pinctrl_group {
+	const char *name;
+	const unsigned int *pins;
+	const unsigned int num_pins;
+	unsigned int chipsets;
+};
+
+static const unsigned int spi_pins[] = { 0, 1, 2, 3 };
+static const unsigned int i2c_pins[] = { 4, 5 };
+static const unsigned int mdio_pins[] = { 6, 7 };
+static const unsigned int pwm0_pins[] = { 8 };
+static const unsigned int pwm1_pins[] = { 9 };
+static const unsigned int pwm2_pins[] = { 10 };
+static const unsigned int pwm3_pins[] = { 11 };
+static const unsigned int uart1_pins[] = { 12, 13, 14, 15 };
+static const unsigned int uart2_pins[] = { 16, 17 };
+static const unsigned int sdio_pwr_pins[] = { 22 };
+static const unsigned int sdio_1p8v_pins[] = { 23 };
+
+#define NS_GROUP(_name, _pins, _chipsets)		\
+{							\
+	.name = _name,					\
+	.pins = _pins,					\
+	.num_pins = ARRAY_SIZE(_pins),			\
+	.chipsets = _chipsets,				\
+}
+
+static const struct ns_pinctrl_group ns_pinctrl_groups[] = {
+	NS_GROUP("spi_grp", spi_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("i2c_grp", i2c_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("mdio_grp", mdio_pins, FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("pwm0_grp", pwm0_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("pwm1_grp", pwm1_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("pwm2_grp", pwm2_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("pwm3_grp", pwm3_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("uart1_grp", uart1_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("uart2_grp", uart2_pins, FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("sdio_pwr_grp", sdio_pwr_pins, FLAG_BCM4709 | FLAG_BCM53012),
+	NS_GROUP("sdio_1p8v_grp", sdio_1p8v_pins, FLAG_BCM4709 | FLAG_BCM53012),
+};
+
+/*
+ * Functions
+ */
+
+struct ns_pinctrl_function {
+	const char *name;
+	const char * const *groups;
+	const unsigned int num_groups;
+	unsigned int chipsets;
+};
+
+static const char * const spi_groups[] = { "spi_grp" };
+static const char * const i2c_groups[] = { "i2c_grp" };
+static const char * const mdio_groups[] = { "mdio_grp" };
+static const char * const pwm_groups[] = { "pwm0_grp", "pwm1_grp", "pwm2_grp",
+					   "pwm3_grp" };
+static const char * const uart1_groups[] = { "uart1_grp" };
+static const char * const uart2_groups[] = { "uart2_grp" };
+static const char * const sdio_groups[] = { "sdio_pwr_grp", "sdio_1p8v_grp" };
+
+#define NS_FUNCTION(_name, _groups, _chipsets)		\
+{							\
+	.name = _name,					\
+	.groups = _groups,				\
+	.num_groups = ARRAY_SIZE(_groups),		\
+	.chipsets = _chipsets,				\
+}
+
+static const struct ns_pinctrl_function ns_pinctrl_functions[] = {
+	NS_FUNCTION("spi", spi_groups, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_FUNCTION("i2c", i2c_groups, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_FUNCTION("mdio", mdio_groups, FLAG_BCM4709 | FLAG_BCM53012),
+	NS_FUNCTION("pwm", pwm_groups, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_FUNCTION("uart1", uart1_groups, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
+	NS_FUNCTION("uart2", uart2_groups, FLAG_BCM4709 | FLAG_BCM53012),
+	NS_FUNCTION("sdio", sdio_groups, FLAG_BCM4709 | FLAG_BCM53012),
+};
+
+/*
+ * Groups code
+ */
+
+static int ns_pinctrl_get_groups_count(struct pinctrl_dev *pctrl_dev)
+{
+	struct ns_pinctrl *ns_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+
+	return ns_pinctrl->num_groups;
+}
+
+static const char *ns_pinctrl_get_group_name(struct pinctrl_dev *pctrl_dev,
+					     unsigned int selector)
+{
+	struct ns_pinctrl *ns_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+
+	return ns_pinctrl->groups[selector].name;
+}
+
+static int ns_pinctrl_get_group_pins(struct pinctrl_dev *pctrl_dev,
+				     unsigned int selector,
+				     const unsigned int **pins,
+				     unsigned int *num_pins)
+{
+	struct ns_pinctrl *ns_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+
+	*pins = ns_pinctrl->groups[selector].pins;
+	*num_pins = ns_pinctrl->groups[selector].num_pins;
+
+	return 0;
+}
+
+static const struct pinctrl_ops ns_pinctrl_ops = {
+	.get_groups_count = ns_pinctrl_get_groups_count,
+	.get_group_name = ns_pinctrl_get_group_name,
+	.get_group_pins = ns_pinctrl_get_group_pins,
+	.dt_node_to_map = pinconf_generic_dt_node_to_map_group,
+	.dt_free_map = pinconf_generic_dt_free_map,
+};
+
+/*
+ * Functions code
+ */
+
+static int ns_pinctrl_get_functions_count(struct pinctrl_dev *pctrl_dev)
+{
+	struct ns_pinctrl *ns_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+
+	return ns_pinctrl->num_functions;
+}
+
+static const char *ns_pinctrl_get_function_name(struct pinctrl_dev *pctrl_dev,
+						unsigned int selector)
+{
+	struct ns_pinctrl *ns_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+
+	return ns_pinctrl->functions[selector].name;
+}
+
+static int ns_pinctrl_get_function_groups(struct pinctrl_dev *pctrl_dev,
+					  unsigned int selector,
+					  const char * const **groups,
+					  unsigned * const num_groups)
+{
+	struct ns_pinctrl *ns_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+
+	*groups = ns_pinctrl->functions[selector].groups;
+	*num_groups = ns_pinctrl->functions[selector].num_groups;
+
+	return 0;
+}
+
+static int ns_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev,
+			      unsigned int func_select,
+			      unsigned int grp_select)
+{
+	struct ns_pinctrl *ns_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+	u32 unset = 0;
+	u32 tmp;
+	int i;
+
+	for (i = 0; i < ns_pinctrl->groups[grp_select].num_pins; i++) {
+		int pin_number = ns_pinctrl->groups[grp_select].pins[i];
+
+		unset |= BIT(pin_number);
+	}
+
+	tmp = readl(ns_pinctrl->base);
+	tmp &= ~unset;
+	writel(tmp, ns_pinctrl->base);
+
+	return 0;
+}
+
+static const struct pinmux_ops ns_pinctrl_pmxops = {
+	.get_functions_count = ns_pinctrl_get_functions_count,
+	.get_function_name = ns_pinctrl_get_function_name,
+	.get_function_groups = ns_pinctrl_get_function_groups,
+	.set_mux = ns_pinctrl_set_mux,
+};
+
+/*
+ * Controller code
+ */
+
+static struct pinctrl_desc ns_pinctrl_desc = {
+	.name = "pinctrl-ns",
+	.pctlops = &ns_pinctrl_ops,
+	.pmxops = &ns_pinctrl_pmxops,
+};
+
+static const struct of_device_id ns_pinctrl_of_match_table[] = {
+	{ .compatible = "brcm,bcm4708-pinmux", .data = (void *)FLAG_BCM4708, },
+	{ .compatible = "brcm,bcm4709-pinmux", .data = (void *)FLAG_BCM4709, },
+	{ .compatible = "brcm,bcm53012-pinmux", .data = (void *)FLAG_BCM53012, },
+	{ }
+};
+
+static int ns_pinctrl_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const struct of_device_id *of_id;
+	struct ns_pinctrl *ns_pinctrl;
+	struct pinctrl_desc *pctldesc;
+	struct pinctrl_pin_desc *pin;
+	struct ns_pinctrl_group *group;
+	struct ns_pinctrl_function *function;
+	struct resource *res;
+	int i;
+
+	ns_pinctrl = devm_kzalloc(dev, sizeof(*ns_pinctrl), GFP_KERNEL);
+	if (!ns_pinctrl)
+		return -ENOMEM;
+	pctldesc = &ns_pinctrl->pctldesc;
+	platform_set_drvdata(pdev, ns_pinctrl);
+
+	/* Set basic properties */
+
+	ns_pinctrl->dev = dev;
+
+	of_id = of_match_device(ns_pinctrl_of_match_table, dev);
+	if (!of_id)
+		return -EINVAL;
+	ns_pinctrl->chipset_flag = (unsigned int)of_id->data;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+					   "cru_gpio_control");
+	ns_pinctrl->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ns_pinctrl->base)) {
+		dev_err(dev, "Failed to map pinctrl regs\n");
+		return PTR_ERR(ns_pinctrl->base);
+	}
+
+	memcpy(pctldesc, &ns_pinctrl_desc, sizeof(*pctldesc));
+
+	/* Set pinctrl properties */
+
+	pctldesc->pins = devm_kcalloc(dev, ARRAY_SIZE(ns_pinctrl_pins),
+				      sizeof(struct pinctrl_pin_desc),
+				      GFP_KERNEL);
+	if (!pctldesc->pins)
+		return -ENOMEM;
+	for (i = 0, pin = (struct pinctrl_pin_desc *)&pctldesc->pins[0];
+	     i < ARRAY_SIZE(ns_pinctrl_pins); i++) {
+		const struct pinctrl_pin_desc *src = &ns_pinctrl_pins[i];
+		unsigned int chipsets = (unsigned int)src->drv_data;
+
+		if (chipsets & ns_pinctrl->chipset_flag) {
+			memcpy(pin++, src, sizeof(*src));
+			pctldesc->npins++;
+		}
+	}
+
+	ns_pinctrl->groups = devm_kcalloc(dev, ARRAY_SIZE(ns_pinctrl_groups),
+					  sizeof(struct ns_pinctrl_group),
+					  GFP_KERNEL);
+	if (!ns_pinctrl->groups)
+		return -ENOMEM;
+	for (i = 0, group = &ns_pinctrl->groups[0];
+	     i < ARRAY_SIZE(ns_pinctrl_groups); i++) {
+		const struct ns_pinctrl_group *src = &ns_pinctrl_groups[i];
+
+		if (src->chipsets & ns_pinctrl->chipset_flag) {
+			memcpy(group++, src, sizeof(*src));
+			ns_pinctrl->num_groups++;
+		}
+	}
+
+	ns_pinctrl->functions = devm_kcalloc(dev,
+					     ARRAY_SIZE(ns_pinctrl_functions),
+					     sizeof(struct ns_pinctrl_function),
+					     GFP_KERNEL);
+	if (!ns_pinctrl->functions)
+		return -ENOMEM;
+	for (i = 0, function = &ns_pinctrl->functions[0];
+	     i < ARRAY_SIZE(ns_pinctrl_functions); i++) {
+		const struct ns_pinctrl_function *src = &ns_pinctrl_functions[i];
+
+		if (src->chipsets & ns_pinctrl->chipset_flag) {
+			memcpy(function++, src, sizeof(*src));
+			ns_pinctrl->num_functions++;
+		}
+	}
+
+	/* Register */
+
+	ns_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, ns_pinctrl);
+	if (IS_ERR(ns_pinctrl->pctldev)) {
+		dev_err(dev, "Failed to register pinctrl\n");
+		return PTR_ERR(ns_pinctrl->pctldev);
+	}
+
+	return 0;
+}
+
+static struct platform_driver ns_pinctrl_driver = {
+	.probe = ns_pinctrl_probe,
+	.driver = {
+		.name = "ns-pinmux",
+		.of_match_table = ns_pinctrl_of_match_table,
+	},
+};
+
+module_platform_driver(ns_pinctrl_driver);
+
+MODULE_AUTHOR("Rafał Miłecki");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(of, ns_pinctrl_of_match_table);
--- a/target/linux/bcm53xx/patches-4.19/080-v4.20-0002-pinctrl-bcm-ns-Use-uintptr_t-for-casting-data.patch
+++ b/target/linux/bcm53xx/patches-4.19/080-v4.20-0002-pinctrl-bcm-ns-Use-uintptr_t-for-casting-data.patch
@ -0,0 +1,38 @@
+From ce7bdb957b8e3f1cbf0a3358f1deef385dff6502 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Thu, 11 Oct 2018 13:23:40 +0200
+Subject: [PATCH] pinctrl: bcm: ns: Use uintptr_t for casting data
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Fix up a compiler error on 64bit architectures where pointers
+and integers differ in size.
+
+Suggested-by: Arnd Bergmann <arnd@arndb.de>
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ drivers/pinctrl/bcm/pinctrl-ns.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-ns.c
+++ b/drivers/pinctrl/bcm/pinctrl-ns.c
+@@ -285,7 +285,7 @@ static int ns_pinctrl_probe(struct platf
+ 	of_id = of_match_device(ns_pinctrl_of_match_table, dev);
+ 	if (!of_id)
+ 		return -EINVAL;
+-	ns_pinctrl->chipset_flag = (unsigned int)of_id->data;
+	ns_pinctrl->chipset_flag = (uintptr_t)of_id->data;
+ 
+ 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ 					   "cru_gpio_control");
+@@ -307,7 +307,7 @@ static int ns_pinctrl_probe(struct platf
+ 	for (i = 0, pin = (struct pinctrl_pin_desc *)&pctldesc->pins[0];
+ 	     i < ARRAY_SIZE(ns_pinctrl_pins); i++) {
+ 		const struct pinctrl_pin_desc *src = &ns_pinctrl_pins[i];
+-		unsigned int chipsets = (unsigned int)src->drv_data;
+		unsigned int chipsets = (uintptr_t)src->drv_data;
+ 
+ 		if (chipsets & ns_pinctrl->chipset_flag) {
+ 			memcpy(pin++, src, sizeof(*src));
--- a/target/linux/bcm53xx/patches-4.19/081-v4.21-0001-pinctrl-bcm-ns-support-updated-DT-binding-as-syscon-.patch
+++ b/target/linux/bcm53xx/patches-4.19/081-v4.21-0001-pinctrl-bcm-ns-support-updated-DT-binding-as-syscon-.patch
@ -0,0 +1,99 @@
+From a49d784d5a8272d0f63c448fe8dc69e589db006e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 18 Dec 2018 16:58:08 +0100
+Subject: [PATCH] pinctrl: bcm: ns: support updated DT binding as syscon
+ subnode
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Documentation has been recently updated specifying that pinctrl should
+be subnode of the CRU "syscon". Support that by using parent node for
+regmap and reading "offset" property from the DT.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ drivers/pinctrl/bcm/pinctrl-ns.c | 29 +++++++++++++++++++----------
+ 1 file changed, 19 insertions(+), 10 deletions(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-ns.c
+++ b/drivers/pinctrl/bcm/pinctrl-ns.c
+@@ -5,6 +5,7 @@
+ 
+ #include <linux/err.h>
+ #include <linux/io.h>
+#include <linux/mfd/syscon.h>
+ #include <linux/module.h>
+ #include <linux/of.h>
+ #include <linux/of_device.h>
+@@ -12,6 +13,7 @@
+ #include <linux/pinctrl/pinctrl.h>
+ #include <linux/pinctrl/pinmux.h>
+ #include <linux/platform_device.h>
+#include <linux/regmap.h>
+ #include <linux/slab.h>
+ 
+ #define FLAG_BCM4708		BIT(1)
+@@ -22,7 +24,8 @@ struct ns_pinctrl {
+ 	struct device *dev;
+ 	unsigned int chipset_flag;
+ 	struct pinctrl_dev *pctldev;
+-	void __iomem *base;
+	struct regmap *regmap;
+	u32 offset;
+ 
+ 	struct pinctrl_desc pctldesc;
+ 	struct ns_pinctrl_group *groups;
+@@ -229,9 +232,9 @@ static int ns_pinctrl_set_mux(struct pin
+ 		unset |= BIT(pin_number);
+ 	}
+ 
+-	tmp = readl(ns_pinctrl->base);
+	regmap_read(ns_pinctrl->regmap, ns_pinctrl->offset, &tmp);
+ 	tmp &= ~unset;
+-	writel(tmp, ns_pinctrl->base);
+	regmap_write(ns_pinctrl->regmap, ns_pinctrl->offset, tmp);
+ 
+ 	return 0;
+ }
+@@ -263,13 +266,13 @@ static const struct of_device_id ns_pinc
+ static int ns_pinctrl_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+ 	const struct of_device_id *of_id;
+ 	struct ns_pinctrl *ns_pinctrl;
+ 	struct pinctrl_desc *pctldesc;
+ 	struct pinctrl_pin_desc *pin;
+ 	struct ns_pinctrl_group *group;
+ 	struct ns_pinctrl_function *function;
+-	struct resource *res;
+ 	int i;
+ 
+ 	ns_pinctrl = devm_kzalloc(dev, sizeof(*ns_pinctrl), GFP_KERNEL);
+@@ -287,12 +290,18 @@ static int ns_pinctrl_probe(struct platf
+ 		return -EINVAL;
+ 	ns_pinctrl->chipset_flag = (uintptr_t)of_id->data;
+ 
+-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+-					   "cru_gpio_control");
+-	ns_pinctrl->base = devm_ioremap_resource(dev, res);
+-	if (IS_ERR(ns_pinctrl->base)) {
+-		dev_err(dev, "Failed to map pinctrl regs\n");
+-		return PTR_ERR(ns_pinctrl->base);
+	ns_pinctrl->regmap = syscon_node_to_regmap(of_get_parent(np));
+	if (IS_ERR(ns_pinctrl->regmap)) {
+		int err = PTR_ERR(ns_pinctrl->regmap);
+
+		dev_err(dev, "Failed to map pinctrl regs: %d\n", err);
+
+		return err;
+	}
+
+	if (of_property_read_u32(np, "offset", &ns_pinctrl->offset)) {
+		dev_err(dev, "Failed to get register offset\n");
+		return -ENOENT;
+ 	}
+ 
+ 	memcpy(pctldesc, &ns_pinctrl_desc, sizeof(*pctldesc));
--- a/target/linux/bcm53xx/patches-4.19/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
+++ b/target/linux/bcm53xx/patches-4.19/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
@ -0,0 +1,137 @@
+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
+@@ -65,12 +65,18 @@ static int xhci_priv_resume_quirk(struct
+ 
+ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *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
+ 	 * here that the generic code does not try to make a pci_dev from our
+ 	 * dev struct in order to setup MSI
+ 	 */
+ 	xhci->quirks |= XHCI_PLAT;
+
+	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
+@@ -158,6 +158,49 @@ 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.
+  *
+@@ -605,10 +648,20 @@ static int xhci_init(struct usb_hcd *hcd
+ 
+ static int xhci_run_finished(struct xhci_hcd *xhci)
+ {
+-	if (xhci_start(xhci)) {
+-		xhci_halt(xhci);
+-		return -ENODEV;
+	int err;
+
+	err = xhci_start(xhci);
+	if (err) {
+		err = -ENODEV;
+		goto err_halt;
+ 	}
+
+	if (xhci->quirks & XHCI_FAKE_DOORBELL) {
+		err = xhci_fake_doorbell(xhci, 1);
+		if (err)
+			goto err_halt;
+	}
+
+ 	xhci->shared_hcd->state = HC_STATE_RUNNING;
+ 	xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
+ 
+@@ -618,6 +671,10 @@ static int xhci_run_finished(struct xhci
+ 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ 			"Finished xhci_run for USB3 roothub");
+ 	return 0;
+
+err_halt:
+	xhci_halt(xhci);
+	return err;
+ }
+ 
+ /*
+--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
+@@ -1848,6 +1848,7 @@ struct xhci_hcd {
+ #define XHCI_ZERO_64B_REGS	BIT_ULL(32)
+ #define XHCI_RESET_PLL_ON_DISCONNECT	BIT_ULL(34)
+ #define XHCI_SNPS_BROKEN_SUSPEND    BIT_ULL(35)
+#define XHCI_FAKE_DOORBELL	BIT_ULL(36)
+ 
+ 	unsigned int		num_active_eps;
+ 	unsigned int		limit_active_eps;
--- a/target/linux/bcm53xx/patches-4.19/300-ARM-BCM5301X-Disable-MMU-and-Dcache-during-decompres.patch
+++ b/target/linux/bcm53xx/patches-4.19/300-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
--- a/target/linux/bcm53xx/patches-4.19/302-ARM-dts-BCM5301X-Update-Northstar-pinctrl-binding.patch
+++ b/target/linux/bcm53xx/patches-4.19/302-ARM-dts-BCM5301X-Update-Northstar-pinctrl-binding.patch
@ -0,0 +1,31 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Subject: [PATCH] ARM: dts: BCM5301X: Update Northstar pinctrl binding
+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/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -400,16 +400,12 @@
+ 		#size-cells = <1>;
+ 
+ 		cru@100 {
+-			compatible = "simple-bus";
+			compatible = "syscon", "simple-mfd";
+ 			reg = <0x100 0x1a4>;
+-			ranges;
+-			#address-cells = <1>;
+-			#size-cells = <1>;
+ 
+-			pin-controller@1c0 {
+			pinctrl {
+ 				compatible = "brcm,bcm4708-pinmux";
+-				reg = <0x1c0 0x24>;
+-				reg-names = "cru_gpio_control";
+				offset = <0xc0>;
+ 
+ 				spi-pins {
+ 					groups = "spi_grp";
--- a/target/linux/bcm53xx/patches-4.19/310-ARM-BCM5301X-Add-DT-for-Netgear-R7900.patch
+++ b/target/linux/bcm53xx/patches-4.19/310-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
+@@ -104,6 +104,7 @@ 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-dlink-dir-885l.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";
+};
--- a/target/linux/bcm53xx/patches-4.19/311-ARM-BCM5301X-Add-power-button-for-Buffalo-WZR-1750DHP.patch
+++ b/target/linux/bcm53xx/patches-4.19/311-ARM-BCM5301X-Add-power-button-for-Buffalo-WZR-1750DHP.patch
@ -0,0 +1,20 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: [PATCH] ARM: BCM5301X: Add power button for Buffalo WZR-1750DHP
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+--- a/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
+++ b/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
+@@ -101,6 +101,12 @@
+ 		#address-cells = <1>;
+ 		#size-cells = <0>;
+ 
+		power {
+			label = "Power";
+			linux,code = <KEY_POWER>;
+			gpios = <&chipcommon 1 GPIO_ACTIVE_LOW>;
+		};
+
+ 		restart {
+ 			label = "Reset";
+ 			linux,code = <KEY_RESTART>;
--- a/target/linux/bcm53xx/patches-4.19/320-ARM-dts-BCM5301X-Add-serial-to-the-bootargs.patch
+++ b/target/linux/bcm53xx/patches-4.19/320-ARM-dts-BCM5301X-Add-serial-to-the-bootargs.patch
@ -0,0 +1,92 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Subject: [PATCH] ARM: dts: BCM5301X: Add serial= to the bootargs
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+It's enough to have proper stdout-path for getting serial working but
+for some reason LEDE doesn't offer "Please press Enter to activate this
+console." unless ttyS0 is specified.
+
+This is a workaround to get serial working in LEDE.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+
+--- a/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+++ b/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+@@ -12,7 +12,7 @@
+ 	model = "TP-LINK Archer C5 V2";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
+		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory {
+--- a/arch/arm/boot/dts/bcm47094-luxul-abr-4500.dts
+++ b/arch/arm/boot/dts/bcm47094-luxul-abr-4500.dts
+@@ -13,7 +13,7 @@
+ 	model = "Luxul ABR-4500 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
+		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory {
+--- a/arch/arm/boot/dts/bcm47094-luxul-xbr-4500.dts
+++ b/arch/arm/boot/dts/bcm47094-luxul-xbr-4500.dts
+@@ -13,7 +13,7 @@
+ 	model = "Luxul XBR-4500 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
+		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory {
+--- a/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
+++ b/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
+@@ -13,7 +13,7 @@
+ 	model = "Luxul XAP-1440 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
+		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory {
+--- a/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
+++ b/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
+@@ -13,7 +13,7 @@
+ 	model = "Luxul XAP-810 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
+		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory {
+--- a/arch/arm/boot/dts/bcm47094-luxul-xap-1610.dts
+++ b/arch/arm/boot/dts/bcm47094-luxul-xap-1610.dts
+@@ -12,7 +12,7 @@
+ 	model = "Luxul XAP-1610 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
+		bootargs = "console=ttyS0,115200 	earlycon";
+ 	};
+ 
+ 	memory {
+--- a/arch/arm/boot/dts/bcm47094-luxul-xwr-3150-v1.dts
+++ b/arch/arm/boot/dts/bcm47094-luxul-xwr-3150-v1.dts
+@@ -13,7 +13,7 @@
+ 	model = "Luxul XWR-3150 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
+		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory {
--- a/target/linux/bcm53xx/patches-4.19/321-ARM-dts-BCM5301X-Describe-partition-formats.patch
+++ b/target/linux/bcm53xx/patches-4.19/321-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
+@@ -34,6 +34,7 @@
+ 				partition@0 {
+ 					label = "firmware";
+ 					reg = <0x00000000 0x08000000>;
+					compatible = "seama";
+ 				};
+ 			};
+ 		};
--- a/target/linux/bcm53xx/patches-4.19/400-mtd-spi-nor-detect-JEDEC-incompatible-w25q128-using-.patch
+++ b/target/linux/bcm53xx/patches-4.19/400-mtd-spi-nor-detect-JEDEC-incompatible-w25q128-using-.patch
@ -0,0 +1,34 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Subject: [PATCH] mtd: spi-nor: detect JEDEC incompatible w25q128 using 0x90
+ command
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Some w25q128 chipsets don't support RDID (0x9f) command, they reply with
+0xff-s only. To suppose such flashes fallback to the 0x90 command.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -1294,6 +1294,18 @@ static const struct flash_info *spi_nor_
+ 	}
+ 	dev_err(nor->dev, "unrecognized JEDEC id bytes: %02x, %02x, %02x\n",
+ 		id[0], id[1], id[2]);
+
+	tmp = nor->read_reg(nor, 0x90, id, SPI_NOR_MAX_ID_LEN);
+	if (tmp < 0) {
+		dev_dbg(nor->dev, " error %d reading JEDEC ID\n", tmp);
+		return ERR_PTR(tmp);
+	}
+	dev_info(nor->dev, "using Read Manufacturer / Device ID command (0x%02x) returned %02x %02x\n",
+		 0x90, id[0x03], id[0x04]);
+	if (id[0x03] == 0xef && id[0x04] == 0x17) {
+		return spi_nor_match_id("w25q128");
+	}
+
+ 	return ERR_PTR(-ENODEV);
+ }
+ 
--- a/target/linux/bcm53xx/patches-4.19/500-UBI-Detect-EOF-mark-and-erase-all-remaining-blocks.patch
+++ b/target/linux/bcm53xx/patches-4.19/500-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
+@@ -95,6 +95,9 @@ 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).
+@@ -1592,6 +1595,8 @@ 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
+@@ -723,6 +723,10 @@ 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
+@@ -833,6 +833,7 @@ 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);
--- a/target/linux/bcm53xx/patches-4.19/700-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch
+++ b/target/linux/bcm53xx/patches-4.19/700-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch
@ -0,0 +1,52 @@
+From 4abdde3ad6bc0b3b157c4bf6ec0bf139d11d07e8 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Wed, 13 May 2015 14:13:28 +0200
+Subject: [PATCH] b53: add hacky CPU port fixes for devices not using port 5
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/net/phy/b53/b53_common.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/net/phy/b53/b53_common.c
+++ b/drivers/net/phy/b53/b53_common.c
+@@ -28,6 +28,7 @@
+ #include <linux/of.h>
+ #include <linux/of_net.h>
+ #include <linux/platform_data/b53.h>
+#include <linux/of.h>
+ 
+ #include "b53_regs.h"
+ #include "b53_priv.h"
+@@ -1579,6 +1580,28 @@ static int b53_switch_init(struct b53_de
+ 			return ret;
+ 	}
+ 
+	/* Set correct CPU port */
+	if (of_machine_is_compatible("asus,rt-ac87u"))
+		sw_dev->cpu_port = 7;
+	else if (of_machine_is_compatible("netgear,r7900"))
+		sw_dev->cpu_port = 8;
+	else if (of_machine_is_compatible("netgear,r8000"))
+		sw_dev->cpu_port = 8;
+	else if (of_machine_is_compatible("netgear,r8500"))
+		sw_dev->cpu_port = 8;
+
+	/* Enable extra ports */
+	if (of_machine_is_compatible("tenda,ac9"))
+		dev->enabled_ports |= BIT(5);
+
+	/*
+	 * Workaround for devices using port 8 (connected to the 3rd iface).
+	 * For some reason it doesn't work (no packets on eth2).
+	 */
+	if (of_machine_is_compatible("netgear,r7900") ||
+	    of_machine_is_compatible("netgear,r8000"))
+		sw_dev->cpu_port = 5;
+
+ 	dev->enabled_ports |= BIT(sw_dev->cpu_port);
+ 	sw_dev->ports = fls(dev->enabled_ports);
+ 
--- a/target/linux/bcm53xx/patches-4.19/905-BCM53573-minor-hacks.patch
+++ b/target/linux/bcm53xx/patches-4.19/905-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
+@@ -53,6 +53,7 @@
+ 			     <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
+@@ -348,14 +348,6 @@ 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);
+@@ -436,6 +428,14 @@ 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
+@@ -17,6 +17,7 @@
+ #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/interrupt.h>
+@@ -864,6 +865,16 @@ static void arch_timer_of_configure_rate
+ 	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 (arch_timer_rate == 0)
+ 		pr_warn("frequency not available\n");