change the i.MX8QM ATF UART

[winters_chen]

您好！我想要将 i.MX8QM 中的 ATF 的串口由 UART0 改为 UART4 ，我将 imx8qm_bl31_setup.c 文件中的串口基地址，串口和引脚等参数进行了修改，但是 UART4 并没有 log 输出。我是否还需要在其他地方作修改呢？能不能给我提供帮助，谢谢！

[igorpadykov]

Hi Winters

also one can look at uart settings in scfw ..platform/board/mx8qm_mek/board.c 

and sect.3.4 Compiling the Code  System Controller Firmware Porting Guide,  sc_fw_port.pdf

SCFW Porting Kit

Best regards
igor
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[winters_chen]

hello , it does not  help for me . I want to change the uart in atf ,not in scfw . The file you sent to me is not abot the atf . Could you give me some help ？