diff --git a/arch/arm64/configs/rk1808_x4_linux_defconfig b/arch/arm64/configs/rk1808_x4_linux_defconfig
new file mode 100644
index 000000000000..fbbc43fdf32b
--- /dev/null
+++ b/arch/arm64/configs/rk1808_x4_linux_defconfig
@@ -0,0 +1,205 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_DEFAULT_HOSTNAME="localhost"
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+CONFIG_FHANDLE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_LOG_BUF_SHIFT=18
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EMBEDDED=y
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PROFILING=y
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_RK_PARTITION is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_ARCH_ROCKCHIP=y
+# CONFIG_ARM64_ERRATUM_826319 is not set
+# CONFIG_ARM64_ERRATUM_827319 is not set
+# CONFIG_ARM64_ERRATUM_824069 is not set
+# CONFIG_ARM64_ERRATUM_819472 is not set
+# CONFIG_ARM64_ERRATUM_832075 is not set
+# CONFIG_ARM64_ERRATUM_845719 is not set
+# CONFIG_ARM64_ERRATUM_843419 is not set
+# CONFIG_CAVIUM_ERRATUM_22375 is not set
+# CONFIG_CAVIUM_ERRATUM_23154 is not set
+# CONFIG_CAVIUM_ERRATUM_27456 is not set
+CONFIG_SCHED_MC=y
+CONFIG_NR_CPUS=2
+CONFIG_PREEMPT=y
+CONFIG_HZ_1000=y
+# CONFIG_SPARSEMEM_VMEMMAP is not set
+# CONFIG_COMPACTION is not set
+# CONFIG_BOUNCE is not set
+CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
+# CONFIG_UNMAP_KERNEL_AT_EL0 is not set
+# CONFIG_ARM64_HW_AFDBM is not set
+# CONFIG_ARM64_PAN is not set
+# CONFIG_ARM64_UAO is not set
+# CONFIG_EFI is not set
+CONFIG_COMPAT=y
+CONFIG_CPU_IDLE=y
+# CONFIG_CPU_IDLE_GOV_LADDER is not set
+CONFIG_ARM_CPUIDLE=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_INTERACTIVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_ARM_ROCKCHIP_CPUFREQ=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_NET_KEY=y
+CONFIG_INET=y
+CONFIG_SYN_COOKIES=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET6_XFRM_MODE_BEET is not set
+# CONFIG_IPV6_SIT is not set
+# CONFIG_ANDROID_PARANOID_NETWORK is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=1
+CONFIG_BLK_DEV_RAM_SIZE=65536
+# CONFIG_INPUT_MOUSEDEV is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_KEYBOARD_ATKBD is not set
+CONFIG_KEYBOARD_GPIO=y
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=5
+CONFIG_SERIAL_8250_RUNTIME_UARTS=5
+CONFIG_SERIAL_8250_DW=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_ROCKCHIP=y
+CONFIG_I2C_RK3X=y
+CONFIG_DEBUG_GPIO=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_POWER_AVS=y
+CONFIG_ROCKCHIP_IODOMAIN=y
+# CONFIG_HWMON is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_WRITABLE_TRIPS=y
+CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR=y
+CONFIG_THERMAL_GOV_USER_SPACE=y
+CONFIG_CPU_THERMAL=y
+CONFIG_DEVFREQ_THERMAL=y
+CONFIG_ROCKCHIP_THERMAL=y
+CONFIG_WATCHDOG=y
+CONFIG_DW_WATCHDOG=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_FAN53555=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_MEDIA_SUPPORT=y
+CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_RC_SUPPORT=y
+CONFIG_MEDIA_CONTROLLER=y
+CONFIG_VIDEO_V4L2_SUBDEV_API=y
+CONFIG_MEDIA_USB_SUPPORT=y
+CONFIG_USB_VIDEO_CLASS=y
+CONFIG_V4L_PLATFORM_DRIVERS=y
+CONFIG_SOC_CAMERA=y
+CONFIG_VIDEO_ROCKCHIP_CIF=y
+CONFIG_V4L_MEM2MEM_DRIVERS=y
+CONFIG_DRM=y
+CONFIG_DRM_ROCKCHIP=y
+CONFIG_ROCKCHIP_DRM_DEBUG=y
+CONFIG_ROCKCHIP_DW_MIPI_DSI=y
+CONFIG_ROCKCHIP_MIPI_CSI_TX=y
+CONFIG_ROCKCHIP_RGB=y
+CONFIG_ROCKCHIP_RGA2=y
+CONFIG_RK_VCODEC=y
+# CONFIG_HID_GENERIC is not set
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_XHCI_HCD=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_DWC3=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DEBUG_FILES=y
+CONFIG_USB_GADGET_VBUS_DRAW=500
+CONFIG_USB_CONFIGFS=y
+CONFIG_USB_CONFIGFS_F_FS=y
+CONFIG_USB_CONFIGFS_UEVENT=y
+CONFIG_DMADEVICES=y
+CONFIG_PL330_DMA=y
+CONFIG_STAGING=y
+# CONFIG_ANDROID_TIMED_OUTPUT is not set
+CONFIG_FIQ_DEBUGGER=y
+CONFIG_FIQ_DEBUGGER_NO_SLEEP=y
+CONFIG_FIQ_DEBUGGER_CONSOLE=y
+CONFIG_FIQ_DEBUGGER_CONSOLE_DEFAULT_ENABLE=y
+CONFIG_FIQ_DEBUGGER_TRUST_ZONE=y
+CONFIG_RK_CONSOLE_THREAD=y
+# CONFIG_COMMON_CLK_XGENE is not set
+# CONFIG_ARM_ARCH_TIMER_EVTSTREAM is not set
+CONFIG_ROCKCHIP_IOMMU=y
+# CONFIG_CPU_PX30 is not set
+CONFIG_CPU_RK1808=y
+# CONFIG_CPU_RK3328 is not set
+# CONFIG_CPU_RK3368 is not set
+# CONFIG_CPU_RK3399 is not set
+CONFIG_ROCKCHIP_PM_DOMAINS=y
+CONFIG_ROCKCHIP_SUSPEND_MODE=y
+CONFIG_PM_DEVFREQ=y
+CONFIG_DEVFREQ_GOV_USERSPACE=y
+CONFIG_PM_DEVFREQ_EVENT=y
+CONFIG_PHY_ROCKCHIP_USB=y
+CONFIG_PHY_ROCKCHIP_INNO_COMBPHY=y
+CONFIG_PHY_ROCKCHIP_INNO_USB2=y
+CONFIG_PHY_ROCKCHIP_INNO_USB3=y
+CONFIG_PHY_ROCKCHIP_INNO_MIPI_DPHY=y
+CONFIG_PHY_ROCKCHIP_PCIE=y
+CONFIG_ANDROID=y
+CONFIG_ROCKCHIP_SIP=y
+# CONFIG_DNOTIFY is not set
+CONFIG_TMPFS=y
+CONFIG_PSTORE=y
+CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_RAM=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PANIC_TIMEOUT=1
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+# CONFIG_FTRACE is not set
+CONFIG_STRICT_DEVMEM=y
+CONFIG_DEBUG_SET_MODULE_RONX=y