Does the LS1012ARDB support SD UHS-I?

[zalbassam]

Hi,

Iam trying to check the performance of the SD card on the LS1012ARDB, using a Sandisk Extreme Pro UHS-I sd card.

When I check the AUTOCERR_SYSCTL2 register of the esdhc1 I see the UHSM field is set to SDR12 (with and without data transfer):

root@OpenWrt:/mnt# devmem 0x156003c
0x00000000

The manual says that the LS1012A itself supports SDR104. My question is, does the RDB supports UHS-I mode? if yes how to switch the Linux driver to use it?

Thank you,

Zaid

[Pavel · Accepted solution]

Look at the following page:

https://community.nxp.com/thread/447129

It looks like that changing of the LS1012a driver code is needed as solution for this problem.

Have a great day,
Pavel Chubakov

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