bcm53xx: add v5.4 support

Signed-off-by: John Crispin <john@phrozen.org>

14 files changed, 1264 insertions, 4 deletions

diff --git a/target/linux/bcm53xx/Makefile b/target/linux/bcm53xx/Makefile
index 6c19263fdf..b63aeaa0f9 100644
--- a/target/linux/bcm53xx/Makefile
+++ b/target/linux/bcm53xx/Makefile
@@ -14,8 +14,8 @@ MAINTAINER:=Hauke Mehrtens <hauke@hauke-m.de>
 CPU_TYPE:=cortex-a9
 SUBTARGETS:=generic
 
-KERNEL_PATCHVER:=4.14
-KERNEL_TESTING_PATCHVER := 4.19
+KERNEL_PATCHVER:=4.19
+KERNEL_TESTING_PATCHVER:=5.4
 
 define Target/Description
 	Build firmware images for Broadcom based BCM47xx/53xx routers with ARM CPU, *not* MIPS.
diff --git a/target/linux/bcm53xx/config-5.4 b/target/linux/bcm53xx/config-5.4
new file mode 100644
index 0000000000..657d49ac01
--- /dev/null
+++ b/target/linux/bcm53xx/config-5.4
@@ -0,0 +1,471 @@
+CONFIG_64BIT_TIME=y
+# CONFIG_ADIN_PHY is not set
+CONFIG_ALIGNMENT_TRAP=y
+# CONFIG_AL_FIC is not set
+CONFIG_ARCH_32BIT_OFF_T=y
+CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM_5301X=y
+CONFIG_ARCH_BCM_53573=y
+# CONFIG_ARCH_BCM_HR2 is not set
+CONFIG_ARCH_BCM_IPROC=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_HAS_BINFMT_FLAT=y
+CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+CONFIG_ARCH_HAS_KCOV=y
+CONFIG_ARCH_HAS_KEEPINITRD=y
+CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
+CONFIG_ARCH_HAS_PHYS_TO_DMA=y
+CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
+CONFIG_ARCH_HAS_SET_MEMORY=y
+CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
+CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
+CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS=y
+CONFIG_ARCH_HAS_TICK_BROADCAST=y
+CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_KEEP_MEMBLOCK=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+# CONFIG_ARCH_MILBEAUT is not set
+CONFIG_ARCH_MULTIPLATFORM=y
+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_RDA 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_DEFAULT_TOPDOWN_MMAP_LAYOUT=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_ERRATA_754322=y
+CONFIG_ARM_ERRATA_764369=y
+CONFIG_ARM_ERRATA_775420=y
+# CONFIG_ARM_ERRATA_814220 is not set
+# CONFIG_ARM_ERRATA_857271 is not set
+# CONFIG_ARM_ERRATA_857272 is not set
+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_UNWIND=y
+CONFIG_ARM_VIRT_EXT=y
+CONFIG_ATAGS=y
+CONFIG_AUTO_ZRELADDR=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+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_CYGNUS_PHY is not set
+CONFIG_BCM_NET_PHYLIB=y
+CONFIG_BCM_NS_THERMAL=y
+CONFIG_BCM_SR_THERMAL=y
+CONFIG_BGMAC=y
+CONFIG_BGMAC_BCMA=y
+# CONFIG_BGMAC_PLATFORM is not set
+CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_BOUNCE=y
+CONFIG_BROADCOM_PHY=y
+CONFIG_CACHE_L2X0=y
+CONFIG_CC_CAN_LINK=y
+CONFIG_CC_HAS_ASM_INLINE=y
+CONFIG_CC_HAS_KASAN_GENERIC=y
+CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=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_FIXED_MMIO is not set
+CONFIG_COMMON_CLK_IPROC=y
+CONFIG_COMPAT_32BIT_TIME=y
+# CONFIG_COUNTER is not set
+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_ICACHE_MISMATCH_WORKAROUND is not set
+CONFIG_CPU_PABRT_V7=y
+CONFIG_CPU_RMAP=y
+CONFIG_CPU_SPECTRE=y
+CONFIG_CPU_THUMB_CAPABLE=y
+CONFIG_CPU_TLB_V7=y
+CONFIG_CPU_V7=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_ACOMP2=y
+# CONFIG_CRYPTO_ADIANTUM is not set
+CONFIG_CRYPTO_AEAD=y
+CONFIG_CRYPTO_AEAD2=y
+CONFIG_CRYPTO_AKCIPHER2=y
+CONFIG_CRYPTO_DEFLATE=y
+# CONFIG_CRYPTO_ECRDSA is not set
+# CONFIG_CRYPTO_ESSIV is not set
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_HASH_INFO=y
+CONFIG_CRYPTO_KPP2=y
+CONFIG_CRYPTO_LIB_AES=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
+CONFIG_CRYPTO_NULL2=y
+# CONFIG_CRYPTO_OFB is not set
+CONFIG_CRYPTO_RNG2=y
+# CONFIG_CRYPTO_STREEBOG is not set
+# CONFIG_CRYPTO_XXHASH is not set
+CONFIG_CRYPTO_ZSTD=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_MISC=y
+# CONFIG_DEBUG_PLIST is not set
+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_DMA_DECLARE_COHERENT=y
+CONFIG_DMA_REMAP=y
+CONFIG_DTC=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+# CONFIG_EXFAT_FS is not set
+CONFIG_EXTCON=y
+# CONFIG_FIELDBUS_DEV is not set
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+# CONFIG_FS_VERITY is not set
+# CONFIG_FW_LOADER_COMPRESS is not set
+CONFIG_FW_LOADER_PAGED_BUF=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_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=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_AMD_FCH is not set
+# CONFIG_GPIO_CADENCE is not set
+# CONFIG_GPIO_SAMA5D2_PIOBU is not set
+CONFIG_GPIO_SYSFS=y
+# CONFIG_HABANA_AI 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_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_THREAD_STRUCT_WHITELIST=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_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_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_IDE=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_OPTPROBES=y
+CONFIG_HAVE_PCI=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_RSEQ=y
+CONFIG_HAVE_SMP=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_UID16=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+# CONFIG_HEADERS_INSTALL is not set
+# CONFIG_HEADER_TEST is not set
+CONFIG_HIGHMEM=y
+# CONFIG_HIGHPTE is not set
+CONFIG_HZ_FIXED=0
+CONFIG_HZ_PERIODIC=y
+# CONFIG_I3C is not set
+# CONFIG_IGC is not set
+# CONFIG_IKHEADERS is not set
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
+# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
+CONFIG_INIT_STACK_NONE=y
+# CONFIG_INTERCONNECT is not set
+CONFIG_IO_URING=y
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_KASAN_STACK=1
+# CONFIG_LCD_CLASS_DEVICE is not set
+# CONFIG_LEDS_TRIGGER_AUDIO is not set
+# CONFIG_LEDS_TRIGGER_PATTERN is not set
+CONFIG_LIBFDT=y
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+# CONFIG_LOCK_EVENT_COUNTS is not set
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LSM="lockdown,yama,loadpin,safesetid,integrity"
+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_BUS_MUX_MULTIPLEXER is not set
+CONFIG_MDIO_DEVICE=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MFD_SYSCON=y
+# CONFIG_MFD_TQMX86 is not set
+CONFIG_MIGHT_HAVE_CACHE_L2X0=y
+CONFIG_MIGRATION=y
+# CONFIG_MISC_ALCOR_PCI is not set
+CONFIG_MODULES_USE_ELF_REL=y
+# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
+CONFIG_MTD_BCM47XXSFLASH=y
+CONFIG_MTD_BCM47XX_PARTS=y
+# CONFIG_MTD_HYPERBUS is not set
+CONFIG_MTD_PARSER_TRX=y
+# CONFIG_MTD_RAW_NAND 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_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NET_FLOW_LIMIT=y
+# CONFIG_NET_SCH_TAPRIO is not set
+CONFIG_NET_VENDOR_GOOGLE=y
+CONFIG_NET_VENDOR_PENSANDO=y
+# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
+CONFIG_NR_CPUS=2
+# CONFIG_NULL_TTY is not set
+CONFIG_NVMEM=y
+CONFIG_NVMEM_SYSFS=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_OUTER_CACHE=y
+CONFIG_OUTER_CACHE_SYNC=y
+# CONFIG_PACKING is not set
+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_PCI_V3_SEMI is not set
+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_BCM_SR_PCIE is not set
+CONFIG_PHY_BCM_SR_USB=y
+# CONFIG_PHY_BRCM_SATA is not set
+# CONFIG_PHY_CADENCE_DP is not set
+# CONFIG_PHY_CADENCE_DPHY is not set
+# CONFIG_PHY_FSL_IMX8MQ_USB is not set
+# CONFIG_PHY_MIXEL_MIPI_DPHY is not set
+# CONFIG_PHY_NS2_USB_DRD is not set
+# CONFIG_PHY_OCELOT_SERDES 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_PINCTRL_OCELOT 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_PRINTK_CALLER is not set
+# CONFIG_PSI is not set
+# CONFIG_PVPANIC is not set
+# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
+CONFIG_RATIONAL=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+# CONFIG_REED_SOLOMON_TEST is not set
+CONFIG_REFCOUNT_FULL=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_RFS_ACCEL=y
+CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_SERIAL_8250_FSL=y
+# CONFIG_SERIAL_AMBA_PL011 is not set
+# CONFIG_SERIAL_FSL_LINFLEXUART is not set
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_SERIAL_SIFIVE is not set
+CONFIG_SGL_ALLOC=y
+# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
+CONFIG_SMP=y
+CONFIG_SMP_ON_UP=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SPI=y
+CONFIG_SPI_BCM_QSPI=y
+CONFIG_SPI_BITBANG=y
+CONFIG_SPI_GPIO=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_MEM=y
+# CONFIG_SPI_MTK_QUADSPI is not set
+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_SWPHY=y
+CONFIG_SWP_EMULATE=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+# CONFIG_TEST_BLACKHOLE_DEV is not set
+# CONFIG_TEST_MEMCAT_P is not set
+# CONFIG_TEST_MEMINIT is not set
+# CONFIG_TEST_STACKINIT is not set
+# CONFIG_TEST_STRSCPY is not set
+# CONFIG_TEST_VMALLOC is not set
+# CONFIG_TEST_XARRAY is not set
+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_TI_CPSW_PHY_SEL is not set
+CONFIG_TREE_RCU=y
+CONFIG_TREE_SRCU=y
+# CONFIG_TRUSTED_FOUNDATIONS is not set
+CONFIG_UBIFS_FS=y
+# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
+CONFIG_UBIFS_FS_LZO=y
+CONFIG_UBIFS_FS_ZLIB=y
+CONFIG_UBIFS_FS_ZSTD=y
+CONFIG_UBSAN_ALIGNMENT=y
+CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+# CONFIG_UNICODE is not set
+CONFIG_UNIX_SCM=y
+CONFIG_UNWINDER_ARM=y
+# CONFIG_UNWINDER_FRAME_POINTER is not set
+# CONFIG_USB_CONN_GPIO is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_USE_OF=y
+# CONFIG_VALIDATE_FS_PARSER is not set
+# CONFIG_VFP is not set
+CONFIG_WATCHDOG_CORE=y
+CONFIG_WATCHDOG_OPEN_TIMEOUT=0
+# CONFIG_XILINX_SDFEC is not set
+CONFIG_XPS=y
+CONFIG_XXHASH=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
+CONFIG_ZSTD_COMPRESS=y
+CONFIG_ZSTD_DECOMPRESS=y
diff --git a/target/linux/bcm53xx/image/Makefile b/target/linux/bcm53xx/image/Makefile
index 6f509741ac..f438fd1208 100644
--- a/target/linux/bcm53xx/image/Makefile
+++ b/target/linux/bcm53xx/image/Makefile
@@ -385,7 +385,7 @@ define Device/tplink-archer-c5-v2
   IMAGE/bin := append-rootfs | bcm53xx-tplink-safeloader
   TPLINK_BOARD := ARCHER-C5-V2
 endef
-TARGET_DEVICES += tplink-archer-c5-v2
+#TARGET_DEVICES += tplink-archer-c5-v2
 
 define Device/tplink-archer-c9-v1
   DEVICE_VENDOR := TP-LINK
@@ -396,6 +396,6 @@ define Device/tplink-archer-c9-v1
   IMAGE/bin := append-rootfs | bcm53xx-tplink-safeloader
   TPLINK_BOARD := ARCHERC9
 endef
-TARGET_DEVICES += tplink-archer-c9-v1
+#TARGET_DEVICES += tplink-archer-c9-v1
 
 $(eval $(call BuildImage))
diff --git a/target/linux/bcm53xx/patches-5.4/130-ARM-dts-BCM5301X-Add-DT-for-Luxul-XWC-2000.patch b/target/linux/bcm53xx/patches-5.4/130-ARM-dts-BCM5301X-Add-DT-for-Luxul-XWC-2000.patch
new file mode 100644
index 0000000000..beeeda7b95
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/130-ARM-dts-BCM5301X-Add-DT-for-Luxul-XWC-2000.patch
@@ -0,0 +1,80 @@
+From: Dan Haab <dan.haab@legrand.com>
+Date: Wed, 2 Oct 2019 09:57:26 -0600
+Subject: [PATCH] ARM: dts: BCM5301X: Add DT for Luxul XWC-2000
+
+It's a simple network device based on BCM47094 with just a single
+Ethernet port.
+
+Signed-off-by: Dan Haab <dan.haab@legrand.com>
+---
+ arch/arm/boot/dts/Makefile                    |  1 +
+ arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts | 53 +++++++++++++++++++
+ 2 files changed, 54 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -111,6 +111,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+ 	bcm47094-luxul-abr-4500.dtb \
+ 	bcm47094-luxul-xap-1610.dtb \
+ 	bcm47094-luxul-xbr-4500.dtb \
++	bcm47094-luxul-xwc-2000.dtb \
+ 	bcm47094-luxul-xwr-3100.dtb \
+ 	bcm47094-luxul-xwr-3150-v1.dtb \
+ 	bcm47094-netgear-r8500.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
+@@ -0,0 +1,53 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++/*
++ * Copyright 2019 Legrand AV Inc.
++ */
++
++/dts-v1/;
++
++#include "bcm47094.dtsi"
++#include "bcm5301x-nand-cs0-bch8.dtsi"
++
++/ {
++	compatible = "luxul,xwc-2000-v1", "brcm,bcm47094", "brcm,bcm4708";
++	model = "Luxul XWC-2000 V1";
++
++	chosen {
++		bootargs = "earlycon";
++	};
++
++	memory {
++		reg = <0x00000000 0x08000000
++		       0x88000000 0x18000000>;
++	};
++
++	leds {
++		compatible = "gpio-leds";
++
++		status	{
++			label = "bcm53xx:green:status";
++			gpios = <&chipcommon 18 GPIO_ACTIVE_LOW>;
++			linux,default-trigger = "timer";
++		};
++	};
++
++	gpio-keys {
++		compatible = "gpio-keys";
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		restart {
++			label = "Reset";
++			linux,code = <KEY_RESTART>;
++			gpios = <&chipcommon 19 GPIO_ACTIVE_LOW>;
++		};
++	};
++};
++
++&uart1 {
++	status = "okay";
++};
++
++&spi_nor {
++	status = "okay";
++};
diff --git a/target/linux/bcm53xx/patches-5.4/180-usb-xhci-add-support-for-performing-fake-doorbell.patch b/target/linux/bcm53xx/patches-5.4/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
new file mode 100644
index 0000000000..be7a52a936
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
@@ -0,0 +1,143 @@
+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(-)
+
+Index: linux-5.4.11/drivers/usb/host/xhci-plat.c
+===================================================================
+--- linux-5.4.11.orig/drivers/usb/host/xhci-plat.c
++++ linux-5.4.11/drivers/usb/host/xhci-plat.c
+@@ -67,6 +67,8 @@ 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
+@@ -74,6 +76,9 @@ 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 */
+Index: linux-5.4.11/drivers/usb/host/xhci.c
+===================================================================
+--- linux-5.4.11.orig/drivers/usb/host/xhci.c
++++ linux-5.4.11/drivers/usb/host/xhci.c
+@@ -156,6 +156,49 @@ 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.
+  *
+@@ -604,10 +647,20 @@ 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;
+ 
+@@ -617,6 +670,10 @@ 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;
+ }
+ 
+ /*
+Index: linux-5.4.11/drivers/usb/host/xhci.h
+===================================================================
+--- linux-5.4.11.orig/drivers/usb/host/xhci.h
++++ linux-5.4.11/drivers/usb/host/xhci.h
+@@ -1867,6 +1867,7 @@ struct xhci_hcd {
+ #define XHCI_DEFAULT_PM_RUNTIME_ALLOW	BIT_ULL(33)
+ #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;
diff --git a/target/linux/bcm53xx/patches-5.4/300-ARM-BCM5301X-Disable-MMU-and-Dcache-during-decompres.patch b/target/linux/bcm53xx/patches-5.4/300-ARM-BCM5301X-Disable-MMU-and-Dcache-during-decompres.patch
new file mode 100644
index 0000000000..034d5b52fc
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/300-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-5.4/302-ARM-dts-BCM5301X-Update-Northstar-pinctrl-binding.patch b/target/linux/bcm53xx/patches-5.4/302-ARM-dts-BCM5301X-Update-Northstar-pinctrl-binding.patch
new file mode 100644
index 0000000000..d1d287588c
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/302-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";
diff --git a/target/linux/bcm53xx/patches-5.4/310-ARM-BCM5301X-Add-DT-for-Netgear-R7900.patch b/target/linux/bcm53xx/patches-5.4/310-ARM-BCM5301X-Add-DT-for-Netgear-R7900.patch
new file mode 100644
index 0000000000..fca2b88ed8
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/310-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";
++};
diff --git a/target/linux/bcm53xx/patches-5.4/311-ARM-BCM5301X-Add-power-button-for-Buffalo-WZR-1750DHP.patch b/target/linux/bcm53xx/patches-5.4/311-ARM-BCM5301X-Add-power-button-for-Buffalo-WZR-1750DHP.patch
new file mode 100644
index 0000000000..5ebc7f89f2
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/311-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>;
diff --git a/target/linux/bcm53xx/patches-5.4/320-ARM-dts-BCM5301X-Add-serial-to-the-bootargs.patch b/target/linux/bcm53xx/patches-5.4/320-ARM-dts-BCM5301X-Add-serial-to-the-bootargs.patch
new file mode 100644
index 0000000000..2f3e287d4e
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/320-ARM-dts-BCM5301X-Add-serial-to-the-bootargs.patch
@@ -0,0 +1,134 @@
+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>
+---
+
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
++++ linux-5.4.11/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@0 {
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47094-luxul-abr-4500.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47094-luxul-abr-4500.dts
++++ linux-5.4.11/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@0 {
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47094-luxul-xbr-4500.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47094-luxul-xbr-4500.dts
++++ linux-5.4.11/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@0 {
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
++++ linux-5.4.11/arch/arm/boot/dts/bcm47189-luxul-xap-1440.dts
+@@ -12,7 +12,7 @@
+ 	model = "Luxul XAP-1440 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
++		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory@0 {
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
++++ linux-5.4.11/arch/arm/boot/dts/bcm47189-luxul-xap-810.dts
+@@ -12,7 +12,7 @@
+ 	model = "Luxul XAP-810 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
++		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory@0 {
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47094-luxul-xap-1610.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47094-luxul-xap-1610.dts
++++ linux-5.4.11/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@0 {
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47094-luxul-xwr-3150-v1.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47094-luxul-xwr-3150-v1.dts
++++ linux-5.4.11/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@0 {
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47094-phicomm-k3.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47094-phicomm-k3.dts
++++ linux-5.4.11/arch/arm/boot/dts/bcm47094-phicomm-k3.dts
+@@ -13,6 +13,10 @@
+ 	compatible = "phicomm,k3", "brcm,bcm47094", "brcm,bcm4708";
+ 	model = "Phicomm K3";
+ 
++	chosen {
++		bootargs = "console=ttyS0,115200";
++	};
++
+ 	memory@0 {
+ 		device_type = "memory";
+ 		reg = <0x00000000 0x08000000
+Index: linux-5.4.11/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
+===================================================================
+--- linux-5.4.11.orig/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
++++ linux-5.4.11/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
+@@ -13,7 +13,7 @@
+ 	model = "Luxul XWC-2000 V1";
+ 
+ 	chosen {
+-		bootargs = "earlycon";
++		bootargs = "console=ttyS0,115200 earlycon";
+ 	};
+ 
+ 	memory {
diff --git a/target/linux/bcm53xx/patches-5.4/321-ARM-dts-BCM5301X-Describe-partition-formats.patch b/target/linux/bcm53xx/patches-5.4/321-ARM-dts-BCM5301X-Describe-partition-formats.patch
new file mode 100644
index 0000000000..66ae6dca33
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/321-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";
+ 				};
+ 			};
+ 		};
diff --git a/target/linux/bcm53xx/patches-5.4/500-UBI-Detect-EOF-mark-and-erase-all-remaining-blocks.patch b/target/linux/bcm53xx/patches-5.4/500-UBI-Detect-EOF-mark-and-erase-all-remaining-blocks.patch
new file mode 100644
index 0000000000..6d7a45f7ba
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/500-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);
diff --git a/target/linux/bcm53xx/patches-5.4/700-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch b/target/linux/bcm53xx/patches-5.4/700-b53-add-hacky-CPU-port-fixes-for-devices-not-using-p.patch
new file mode 100644
index 0000000000..91bb4fae11
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/700-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);
+ 
diff --git a/target/linux/bcm53xx/patches-5.4/905-BCM53573-minor-hacks.patch b/target/linux/bcm53xx/patches-5.4/905-BCM53573-minor-hacks.patch
new file mode 100644
index 0000000000..470b17a5ff
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.4/905-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
+@@ -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
+@@ -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>
+@@ -919,6 +920,16 @@ 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");