iMX.7D - SHDC Driver(SDCard/eMMC) is working very well ?

JunBeom Kim (EmbedCoreTech) jbkim at
Thu Jan 10 07:23:00 UTC 2019

Dear Huber,

Did you test both SD-Card and eMMC on i.MX7D target ?

If there is some performance issues, I will check this, too.

Please let me know what kinds of performance issue.
I will review driver code for increasing performance on referencing your comment.

Best Regards,

-----Original Message-----
From: Sebastian Huber <sebastian.huber at> 
Sent: Thursday, January 10, 2019 4:15 PM
To: JunBeom Kim (EmbedCoreTech) <jbkim at>; users at
Subject: Re: iMX.7D - SHDC Driver(SDCard/eMMC) is working very well ?

On 10/01/2019 08:01, JunBeom Kim (EmbedCoreTech) wrote:
> I would like to know SDHC FreeBSD porting version for i.MX7D is stable 
> for both SD-Card and eMMC storage.

There are some performance issues, but in some simple tests it worked well.

Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber at
PGP     : Public key available on request.

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