[PATCH v2] Revert "mmc: fsl_esdhc_imx: use VENDORSPEC_FRC_SDCLK_ON to control card clock output"

Fabio Estevam festevam at gmail.com
Tue Jun 8 04:07:35 CEST 2021

Hi Haibo,

On Mon, Jun 7, 2021 at 10:57 PM Bough Chen <haibo.chen at nxp.com> wrote:

> Hi Fabio,
> Force clock on did help us fix some issue, like voltage switch for UHS card.
> According to your commit log, seems this patch affect the booting time, do
> you mean
> the API readx_poll_timeout() cost a lot time? Can you show us the detail
> info about
> booting time effected by this patch?

If I revert the patch SPL/U-Boot boot in one second.

With this patch, it takes around 20 seconds, which is unacceptable.


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