AnsweredAssumed Answered

eMMC5.0 Boot with Bus Width=8bit access for i.MX6

Question asked by yuuki on Feb 12, 2015
Latest reply on Dec 22, 2016 by Rahul Soni

Dear all,

 

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?

 

Best Regards,
Yuuki

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