你好， 这边使用的 AM335x + MX25L12845EMI, SPI 启动方式
SDK u-boot 使用 config : am335x_evm_spiboot_defconfig
编译完后，烧录 MLO.byteswap 和 u-boot.img 后，串口什么打印都没有
烧录的命令如下：
setenv filesize ; tftp ${loadaddr} ./MLO.byteswap; sf probe 0; sleep 1; sf erase 0 +${sfaddr_dtb} ${filesize}; sleep 3; sf write ${loadaddr} 0 ${filesize}; sleep 1; setenv filesize ; tftp ${loadaddr} ./u-boot.img; sleep 1; sf write ${loadaddr} ${sfaddr_uboot} ${filesize}; sleep 2
sfaddr_dtb=0x0c0000
sfaddr_uboot=0x01e000
am335x_evm_spiboot_defconfig 内容如下：
CONFIG_ARM=y
CONFIG_TARGET_AM335X_EVM=y
CONFIG_SPL_STACK_R_ADDR=0x82000000
CONFIG_SPL=y
CONFIG_SPL_STACK_R=y
CONFIG_FIT=y
CONFIG_SYS_EXTRA_OPTIONS="SPI_BOOT"
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
CONFIG_CMD_ASKENV=y
# CONFIG_CMD_FLASH is not set
CONFIG_CMD_MMC=y
CONFIG_CMD_SF=y
CONFIG_CMD_SPI=y
CONFIG_CMD_I2C=y
CONFIG_CMD_USB=y
CONFIG_CMD_DFU=y
CONFIG_CMD_GPIO=y
# CONFIG_CMD_SETEXPR is not set
CONFIG_CMD_DHCP=y
CONFIG_CMD_MII=y
CONFIG_CMD_PING=y
CONFIG_CMD_EXT2=y
CONFIG_CMD_EXT4=y
CONFIG_CMD_EXT4_WRITE=y
CONFIG_CMD_FAT=y
CONFIG_CMD_FS_GENERIC=y
CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_WINBOND=y
请问这大概需要修改那个地方？ MLO 编译的有问题 ？
