Our customer uses eMMC5.0 device.
And they make a system boot from eMMC with Bus Width=8bit(BOOT_CFG2[7:5]=010).
In this case, system can not boot.
When Bus Width is set to 4bit(BOOT_CFG2[7:5]=001) and U-Boot is set as 4bit, system is able to boot.
However, boot speed is very slow.
Is there a way to be accessed by 8 bits at booting from eMMC5.0 device?
May I have advice?