U-Boot

CONFIG_ARM=y
CONFIG_ARCH_SUNXI=y
CONFIG_DEFAULT_DEVICE_TREE="allwinner/sun55i-t527-orangepi-4a"
CONFIG_SPL=y
CONFIG_DRAM_SUNXI_DX_ODT=0x07070707
CONFIG_DRAM_SUNXI_DX_DRI=0x0d0d0d0d
CONFIG_DRAM_SUNXI_CA_DRI=0x0e0e
CONFIG_DRAM_SUNXI_ODT_EN=0x84848484
CONFIG_DRAM_SUNXI_TPR0=0x80808080
CONFIG_DRAM_SUNXI_TPR1=0x06060606
CONFIG_DRAM_SUNXI_TPR2=0x5f090503
CONFIG_DRAM_SUNXI_TPR6=0x38000000
CONFIG_DRAM_SUNXI_TPR10=0x802f3333
CONFIG_DRAM_SUNXI_TPR11=0xc6c4c2c0
CONFIG_DRAM_SUNXI_TPR12=0x3a373233
CONFIG_MACH_SUN55I_A523=y
CONFIG_MMC_SUNXI_SLOT_EXTRA=2
CONFIG_R_I2C_ENABLE=y
# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
CONFIG_SPL_I2C=y
CONFIG_SPL_SYS_I2C_LEGACY=y
CONFIG_SYS_I2C_MVTWSI=y
CONFIG_SYS_I2C_SLAVE=0x7f
CONFIG_SYS_I2C_SPEED=400000
CONFIG_SUPPORT_EMMC_BOOT=y
CONFIG_REGULATOR_AXP=y
CONFIG_AXP717_POWER=y
CONFIG_AXP_I2C_ADDRESS=0x35
CONFIG_AXP_DCDC2_VOLT=920
CONFIG_AXP_DCDC3_VOLT=1160
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y