diff --git a/board/aarch64/linux_defconfig b/board/aarch64/linux_defconfig
new file mode 100644
index 00000000..5f64253e
--- /dev/null
+++ b/board/aarch64/linux_defconfig
@@ -0,0 +1,429 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_BPF_JIT=y
+CONFIG_PREEMPT=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=18
+CONFIG_MEMCG=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_PERF=y
+CONFIG_USER_NS=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_PROFILING=y
+CONFIG_ARCH_MVEBU=y
+CONFIG_ARCH_VEXPRESS=y
+CONFIG_ARM64_VA_BITS_48=y
+CONFIG_SCHED_MC=y
+CONFIG_NR_CPUS=64
+CONFIG_HOTPLUG_CPU=y
+CONFIG_COMPAT=y
+# CONFIG_SUSPEND is not set
+CONFIG_ARM_CPUIDLE=y
+CONFIG_ARM_PSCI_CPUIDLE=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_ARM_ARMADA_37XX_CPUFREQ=y
+CONFIG_ARM_ARMADA_8K_CPUFREQ=y
+CONFIG_ACPI=y
+CONFIG_ARM64_CRYPTO=y
+CONFIG_CRYPTO_SHA1_ARM64_CE=y
+CONFIG_CRYPTO_SHA2_ARM64_CE=y
+CONFIG_CRYPTO_GHASH_ARM64_CE=y
+CONFIG_CRYPTO_AES_ARM64_CE_CCM=y
+CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
+CONFIG_KPROBES=y
+CONFIG_JUMP_LABEL=y
+# CONFIG_GCC_PLUGINS is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_KSM=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_CMA=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_NET_IPIP=y
+CONFIG_NET_IPGRE_DEMUX=y
+CONFIG_NET_IPGRE=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_NETFILTER=y
+CONFIG_BRIDGE_NETFILTER=m
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_EVENTS=y
+# CONFIG_NF_CT_PROTO_DCCP is not set
+# CONFIG_NF_CT_PROTO_SCTP is not set
+# CONFIG_NF_CT_PROTO_UDPLITE is not set
+CONFIG_NF_TABLES=y
+CONFIG_NF_TABLES_INET=y
+CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
+CONFIG_NETFILTER_XT_TARGET_LOG=m
+CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IP_NF_NAT=m
+CONFIG_IP_NF_TARGET_MASQUERADE=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_NF_LOG_IPV6=m
+CONFIG_BRIDGE=y
+CONFIG_BRIDGE_VLAN_FILTERING=y
+CONFIG_NET_DSA=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VLAN_8021Q_GVRP=y
+CONFIG_VLAN_8021Q_MVRP=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_PCI=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCI_IOV=y
+CONFIG_PCI_AARDVARK=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PCIE_ARMADA_8K=y
+CONFIG_UEVENT_HELPER=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_BLOCK2MTD=y
+CONFIG_MTD_RAW_NAND=y
+CONFIG_MTD_NAND_MARVELL=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_OF_OVERLAY=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_BLK_DEV_NVME=y
+CONFIG_SRAM=y
+CONFIG_EEPROM_AT24=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_SCSI_SAS_LIBSAS=y
+CONFIG_SCSI_SAS_ATA=y
+CONFIG_SCSI_VIRTIO=y
+CONFIG_ATA=y
+CONFIG_SATA_AHCI=y
+CONFIG_SATA_AHCI_PLATFORM=y
+CONFIG_AHCI_MVEBU=y
+CONFIG_PATA_PLATFORM=y
+CONFIG_PATA_OF_PLATFORM=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=y
+CONFIG_NET_TEAM=y
+CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=y
+CONFIG_NET_TEAM_MODE_LOADBALANCE=y
+CONFIG_MACVLAN=y
+CONFIG_MACVTAP=y
+CONFIG_VXLAN=y
+CONFIG_MACSEC=y
+CONFIG_TUN=y
+CONFIG_VETH=y
+CONFIG_VIRTIO_NET=y
+CONFIG_NET_DSA_MV88E6XXX=y
+CONFIG_NET_DSA_MV88E6XXX_PTP=y
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_ADAPTEC is not set
+# CONFIG_NET_VENDOR_AGERE is not set
+# CONFIG_NET_VENDOR_ALACRITECH is not set
+# CONFIG_NET_VENDOR_ALTEON is not set
+# CONFIG_NET_VENDOR_AMAZON is not set
+# CONFIG_NET_VENDOR_AMD is not set
+# CONFIG_NET_VENDOR_AQUANTIA is not set
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_ATHEROS is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_CADENCE is not set
+# CONFIG_NET_VENDOR_CAVIUM is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_CISCO is not set
+# CONFIG_NET_VENDOR_CORTINA is not set
+# CONFIG_NET_VENDOR_DEC is not set
+# CONFIG_NET_VENDOR_DLINK is not set
+# CONFIG_NET_VENDOR_EMULEX is not set
+# CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_GOOGLE is not set
+# CONFIG_NET_VENDOR_HISILICON is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
+CONFIG_MVNETA=y
+CONFIG_MVPP2=y
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MICROCHIP is not set
+# CONFIG_NET_VENDOR_MICROSEMI is not set
+# CONFIG_NET_VENDOR_MYRI is not set
+# CONFIG_NET_VENDOR_NI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETERION is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
+# CONFIG_NET_VENDOR_NVIDIA is not set
+# CONFIG_NET_VENDOR_OKI is not set
+# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
+# CONFIG_NET_VENDOR_PENSANDO is not set
+# CONFIG_NET_VENDOR_QLOGIC is not set
+# CONFIG_NET_VENDOR_BROCADE is not set
+# CONFIG_NET_VENDOR_QUALCOMM is not set
+# CONFIG_NET_VENDOR_RDC is not set
+CONFIG_8139CP=y
+# CONFIG_NET_VENDOR_RENESAS 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_SILAN is not set
+# CONFIG_NET_VENDOR_SIS is not set
+# CONFIG_NET_VENDOR_SOLARFLARE is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_SOCIONEXT is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SUN is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
+# CONFIG_NET_VENDOR_TEHUTI is not set
+# CONFIG_NET_VENDOR_TI is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_XILINX is not set
+CONFIG_SFP=y
+CONFIG_MARVELL_PHY=y
+CONFIG_MARVELL_10G_PHY=y
+CONFIG_MICREL_PHY=y
+CONFIG_MICROCHIP_PHY=y
+CONFIG_MICROCHIP_T1_PHY=y
+CONFIG_MICROSEMI_PHY=y
+CONFIG_MDIO_BITBANG=y
+CONFIG_MDIO_MVUSB=y
+CONFIG_MDIO_BUS_MUX_MMIOREG=y
+CONFIG_USB_USBNET=y
+CONFIG_USB_NET_CDC_EEM=y
+# CONFIG_USB_NET_CDC_NCM is not set
+# CONFIG_USB_NET_NET1080 is not set
+# CONFIG_USB_NET_CDC_SUBSET is not set
+# CONFIG_USB_NET_ZAURUS is not set
+# CONFIG_WLAN is not set
+CONFIG_INPUT_EVDEV=y
+CONFIG_KEYBOARD_GPIO=y
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO_SERPORT is not set
+CONFIG_SERIO_AMBAKMI=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_XILINX_PS_UART=y
+CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
+CONFIG_SERIAL_MVEBU_UART=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_GPIO=y
+CONFIG_I2C_MUX_PCA954x=y
+CONFIG_I2C_DESIGNWARE_PLATFORM=y
+CONFIG_I2C_MV64XXX=y
+CONFIG_I2C_SLAVE=y
+CONFIG_SPI=y
+CONFIG_SPI_ARMADA_3700=y
+CONFIG_SPI_NXP_FLEXSPI=y
+CONFIG_SPI_PL022=y
+CONFIG_SPI_SPIDEV=m
+CONFIG_SPMI=y
+CONFIG_PINCTRL_MICROCHIP_SGPIO=y
+CONFIG_GPIO_DWAPB=y
+CONFIG_GPIO_PL061=y
+CONFIG_GPIO_XGENE=y
+CONFIG_GPIO_PCA953X=y
+CONFIG_GPIO_PCA953X_IRQ=y
+CONFIG_GPIO_MAX77620=y
+CONFIG_POWER_RESET_XGENE=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_BATTERY_BQ27XXX=y
+CONFIG_CHARGER_GPIO=y
+CONFIG_SENSORS_JC42=y
+CONFIG_SENSORS_LM90=m
+CONFIG_SENSORS_INA2XX=m
+CONFIG_THERMAL_EMULATION=y
+CONFIG_ARMADA_THERMAL=y
+CONFIG_WATCHDOG=y
+CONFIG_SOFT_WATCHDOG=y
+CONFIG_ARMADA_37XX_WATCHDOG=y
+CONFIG_MFD_MAX77620=y
+CONFIG_MFD_SEC_CORE=y
+CONFIG_MFD_ROHM_BD718XX=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_BD718XX=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_REGULATOR_MAX77620=y
+CONFIG_REGULATOR_PCA9450=y
+CONFIG_REGULATOR_QCOM_SPMI=y
+CONFIG_REGULATOR_S2MPS11=y
+# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_A4TECH is not set
+# CONFIG_HID_APPLE is not set
+# CONFIG_HID_BELKIN is not set
+# CONFIG_HID_CHERRY is not set
+# CONFIG_HID_CHICONY is not set
+# CONFIG_HID_CYPRESS is not set
+# CONFIG_HID_EZKEY is not set
+# CONFIG_HID_KENSINGTON is not set
+# CONFIG_HID_LOGITECH is not set
+# CONFIG_HID_MICROSOFT is not set
+# CONFIG_HID_MONTEREY is not set
+CONFIG_USB=y
+CONFIG_USB_OTG=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_MVEBU=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC2=y
+CONFIG_USB_CHIPIDEA=y
+CONFIG_USB_CHIPIDEA_UDC=y
+CONFIG_USB_CHIPIDEA_HOST=y
+CONFIG_USB_ISP1760=y
+CONFIG_USB_HSIC_USB3503=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_ULPI=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_SNP_UDC_PLAT=y
+CONFIG_TYPEC=y
+CONFIG_TYPEC_TCPM=y
+CONFIG_TYPEC_TCPCI=y
+CONFIG_TYPEC_RT1711H=y
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_ARMMMCI=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SPI=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_EXYNOS=y
+CONFIG_MMC_DW_K3=y
+CONFIG_MMC_CQHCI=y
+CONFIG_MMC_SDHCI_XENON=y
+CONFIG_SCSI_UFSHCD=y
+CONFIG_SCSI_UFSHCD_PLATFORM=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_SYSCON=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_CPU=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_MAX77686=y
+CONFIG_RTC_DRV_PCF8523=y
+CONFIG_RTC_DRV_S5M=y
+CONFIG_RTC_DRV_DS3232=y
+CONFIG_RTC_DRV_EFI=y
+CONFIG_RTC_DRV_PL031=y
+CONFIG_RTC_DRV_ARMADA38X=y
+CONFIG_DMADEVICES=y
+CONFIG_MV_XOR=y
+CONFIG_MV_XOR_V2=y
+CONFIG_PL330_DMA=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_MMIO=y
+# CONFIG_SURFACE_PLATFORMS is not set
+CONFIG_COMMON_CLK_CS2000_CP=y
+CONFIG_COMMON_CLK_S2MPS11=y
+CONFIG_COMMON_CLK_XGENE=y
+CONFIG_COMMON_CLK_BD718XX=y
+CONFIG_MAILBOX=y
+CONFIG_ARM_SMMU=y
+CONFIG_ARM_SMMU_V3=y
+CONFIG_EXTCON_USB_GPIO=y
+CONFIG_IIO=y
+CONFIG_TI_ADC081C=y
+CONFIG_PWM=y
+CONFIG_PHY_XGENE=y
+CONFIG_PHY_MVEBU_CP110_COMPHY=y
+CONFIG_PHY_SAMSUNG_USB2=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_FANOTIFY=y
+CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
+CONFIG_QUOTA=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_FUSE_FS=y
+CONFIG_VIRTIO_FS=y
+CONFIG_OVERLAY_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_HUGETLBFS=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_JFFS2_FS=y
+CONFIG_SQUASHFS=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V4=y
+CONFIG_NFS_V4_1=y
+CONFIG_NFS_V4_2=y
+CONFIG_ROOT_NFS=y
+CONFIG_9P_FS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_SECURITY=y
+CONFIG_CRYPTO_CCM=m
+CONFIG_CRYPTO_ECHAINIV=y
+CONFIG_CRYPTO_ANSI_CPRNG=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=0
+CONFIG_IRQ_POLL=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_FS=y
+CONFIG_DETECT_HUNG_TASK=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+# CONFIG_RCU_TRACE is not set
+CONFIG_FUNCTION_TRACER=y
+# CONFIG_STRICT_DEVMEM is not set
+CONFIG_MEMTEST=y