arc770: update kernel version to 5.4

Update config with make kernel_oldconfig and copy/refresh patch.

Add CONFIG_WATCHDOG_CORE=y to fix the following error as done for
several targets already:

 Package kmod-hwmon-sch5627 is missing dependencies for the following
 libraries:
 watchdog.ko

Directly switch to kernel 5.4.

This patch is compile-tested only. However, the target is essentially
pure upstream with a single patch, and it has been reported that
kernel 5.4 has been run on this target successfully already.

Note that in my local tests building with all packages/kmods failed
since openvswitch selects libunwind, which doesn't build for arc with
the following error:

checking if we should build libunwind-ptrace... yes
checking if we should build libunwind-setjmp... yes
checking for build architecture... x86_64
checking for host architecture... arc
checking for target architecture... arc
checking for target operating system... linux-gnu
checking for ELF helper width... configure: error: Unknown ELF target: arc
make[3]: *** [Makefile:65: /data/openwrt/build_dir/target-arc_arc700_uClibc/
   libunwind-1.3.1/.configured_68b329da9893e34099c7d8ad5cb9c940] Error 1

Deselecting all kmod-openvswitch* packages will have the build run through.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

3 files changed, 231 insertions, 1 deletions

diff --git a/target/linux/arc770/Makefile b/target/linux/arc770/Makefile
index 018d6e5448..530fb1ea6e 100644
--- a/target/linux/arc770/Makefile
+++ b/target/linux/arc770/Makefile
@@ -11,7 +11,7 @@ BOARD:=arc770
 BOARDNAME:=Synopsys DesignWare ARC 770D
 SUBTARGETS:=generic
 
-KERNEL_PATCHVER:=4.14
+KERNEL_PATCHVER:=5.4
 
 DEVICE_TYPE:=basic
 
diff --git a/target/linux/arc770/config-5.4 b/target/linux/arc770/config-5.4
new file mode 100644
index 0000000000..fcbad961fd
--- /dev/null
+++ b/target/linux/arc770/config-5.4
@@ -0,0 +1,199 @@
+# CONFIG_16KSTACKS is not set
+CONFIG_ARC=y
+CONFIG_ARCH_32BIT_OFF_T=y
+CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
+CONFIG_ARCH_HAS_DMA_COHERENT_TO_PFN=y
+CONFIG_ARCH_HAS_DMA_PREP_COHERENT=y
+CONFIG_ARCH_HAS_PTE_SPECIAL=y
+CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
+CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y
+CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARC_BUILTIN_DTB_NAME=""
+CONFIG_ARC_CACHE=y
+CONFIG_ARC_CACHE_LINE_SHIFT=5
+CONFIG_ARC_CACHE_PAGES=y
+# CONFIG_ARC_CACHE_VIPT_ALIASING is not set
+# CONFIG_ARC_COMPACT_IRQ_LEVELS is not set
+# CONFIG_ARC_CPU_750D is not set
+CONFIG_ARC_CPU_770=y
+CONFIG_ARC_CURR_IN_REG=y
+CONFIG_ARC_DBG=y
+# CONFIG_ARC_DBG_TLB_PARANOIA is not set
+CONFIG_ARC_DW2_UNWIND=y
+CONFIG_ARC_EMUL_UNALIGNED=y
+# CONFIG_ARC_FPU_SAVE_RESTORE is not set
+CONFIG_ARC_HAS_DCACHE=y
+# CONFIG_ARC_HAS_DCCM is not set
+CONFIG_ARC_HAS_ICACHE=y
+# CONFIG_ARC_HAS_ICCM is not set
+CONFIG_ARC_HAS_LLSC=y
+CONFIG_ARC_HAS_SWAPE=y
+CONFIG_ARC_KVADDR_SIZE=256
+# CONFIG_ARC_METAWARE_HLINK is not set
+# CONFIG_ARC_MMU_V1 is not set
+# CONFIG_ARC_MMU_V2 is not set
+CONFIG_ARC_MMU_V3=y
+# CONFIG_ARC_PAGE_SIZE_16K is not set
+# CONFIG_ARC_PAGE_SIZE_4K is not set
+CONFIG_ARC_PAGE_SIZE_8K=y
+CONFIG_ARC_PLAT_AXS10X=y
+# CONFIG_ARC_PLAT_EZNPS is not set
+# CONFIG_ARC_PLAT_TB10X is not set
+CONFIG_ARC_TIMERS=y
+CONFIG_AXS101=y
+CONFIG_CC_HAS_KASAN_GENERIC=y
+# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 is not set
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_COMMON_CLK=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CPU_NO_EFFICIENT_FFS=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_DMA_DIRECT_REMAP=y
+CONFIG_DMA_REMAP=y
+CONFIG_DTC=y
+CONFIG_DWMAC_ANARION=y
+CONFIG_DWMAC_GENERIC=y
+CONFIG_DW_APB_ICTL=y
+CONFIG_EXT4_FS=y
+# CONFIG_EZNPS_GIC is not set
+CONFIG_FIXED_PHY=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CSUM=y
+CONFIG_GENERIC_FIND_FIRST_BIT=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DWAPB=y
+CONFIG_GPIO_GENERIC=y
+# CONFIG_GPIO_SNPS_CREG is not set
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_FUTEX_CMPXCHG=y
+CONFIG_HAVE_IOREMAP_PROT=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PCI=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HZ=100
+CONFIG_HZ_PERIODIC=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_WORK=y
+CONFIG_ISA_ARCOMPACT=y
+# CONFIG_ISA_ARCV2 is not set
+CONFIG_JBD2=y
+CONFIG_KALLSYMS=y
+CONFIG_KERNEL_GZIP=y
+CONFIG_LIBFDT=y
+CONFIG_LINUX_LINK_BASE=0x80000000
+CONFIG_LINUX_RAM_BASE=0x80000000
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MFD_SYSCON=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_DW=y
+# CONFIG_MMC_DW_BLUEFIELD is not set
+# CONFIG_MMC_DW_EXYNOS is not set
+# CONFIG_MMC_DW_HI3798CV200 is not set
+# CONFIG_MMC_DW_K3 is not set
+CONFIG_MMC_DW_PLTFM=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_NATIONAL_PHY=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NET_PTP_CLASSIFY=y
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_QUALCOMM is not set
+# CONFIG_NET_VENDOR_ROCKER is not set
+# CONFIG_NET_VENDOR_SAMSUNG is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_NO_IOPORT_MAP=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_PAGE_POOL=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+CONFIG_PHYLINK=y
+CONFIG_PPS=y
+CONFIG_PREEMPT=y
+CONFIG_PREEMPTION=y
+CONFIG_PREEMPT_COUNT=y
+# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_RCU=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_RATIONAL=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_RESET_AXS10X=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RESET_SIMPLE=y
+CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
+CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_8250_DWLIB=y
+CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_ARC=y
+CONFIG_SERIAL_ARC_CONSOLE=y
+CONFIG_SERIAL_ARC_NR_PORTS=1
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SRCU=y
+CONFIG_STACKTRACE=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+# CONFIG_STMMAC_SELFTESTS is not set
+CONFIG_SWPHY=y
+CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
+CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN=y
+CONFIG_TASKS_RCU=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TREE_SRCU=y
+CONFIG_UNINLINE_SPIN_UNLOCK=y
+CONFIG_USB_SUPPORT=y
+CONFIG_WATCHDOG_CORE=y
diff --git a/target/linux/arc770/patches-5.4/700-stmmac-Disable-frame-filtering-completely.patch b/target/linux/arc770/patches-5.4/700-stmmac-Disable-frame-filtering-completely.patch
new file mode 100644
index 0000000000..9adfcb1be2
--- /dev/null
+++ b/target/linux/arc770/patches-5.4/700-stmmac-Disable-frame-filtering-completely.patch
@@ -0,0 +1,31 @@
+From 0031b9011cb2b2b1de4dbb4f9620303aec760db4 Mon Sep 17 00:00:00 2001
+From: Alexey Brodkin <abrodkin@synopsys.com>
+Date: Wed, 27 Jul 2016 11:33:14 +0300
+Subject: [PATCH] stmmac: Disable frame filtering completely
+
+For some [still unknown] reason in ARC SDP boards
+DW GMAC doesn't enter promiscuous mode if eth0 gets
+added to the br-lan interface before Ethernet PHY finishes
+autonegotiation (PHY gets reset on DW GMAC start).
+
+As a work-around we completely disable frame filtering
+in GMAC hardware which gives us working bridge that consists
+of eth0 and wlan0 (USB Wi-Fi dongle). I.e. we finally have
+working "Dumb AP" setup made of ARC AXS10x boards.
+
+Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
+---
+ drivers/net/ethernet/stmicro/stmmac/common.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/stmicro/stmmac/common.h
++++ b/drivers/net/ethernet/stmicro/stmmac/common.h
+@@ -42,7 +42,7 @@
+ #define STMMAC_GET_ENTRY(x, size)	((x + 1) & (size - 1))
+ 
+ #undef FRAME_FILTER_DEBUG
+-/* #define FRAME_FILTER_DEBUG */
++#define FRAME_FILTER_DEBUG
+ 
+ /* Extra statistic and debug information exposed by ethtool */
+ struct stmmac_extra_stats {