Hi,
The SD1 can be use connect the 4bit emmc. Here you ask about if you can use the LCD_DATA19-23 to connect the emmc and boot up, the answer is no. From our RM you can see the Table 8-18. SD/MMC IOMUX pin configuration, you can see that the emmc boot up USDHC2 from NAND not the LCD_DATA.
Hope this can do help for you.
Have a nice day
Rita
谢谢你,数据地址复用模式,要需要自己写一个驱动吗?还是只要在dts文件里设置时序:
然后就可以在用户空间读写地址了?