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download uboot success but serial console output nothing

Question asked by wenjie xu on Jul 5, 2020
Latest reply on Jul 6, 2020 by wenjie xu

hello

we custom a board according to imx8mq_evk board, but the DDR isn't the same. I modify the DDR configure with mscale_ddr_tool_v310,and download uboot successful,you can see the uboot_down_process.log.After this we config BOOT_MODE=0b10(internal boot),

BOOT_CFG[0]=0,

BOOT_CFG[1]=0,

BOOT_CFG[3:2]=00,

BOOT_CFG[6:4]=010,

BOOT_CFG[7]=1,

BOOT_CFG[8]=1,

BOOT_CFG[9]=0,

BOOT_CFG[11:10]=00,

BOOT_CFG[15:12]=0010

and then power on the serial console has nothing output.Can you give me a hand? thanks very much!

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