Re: [PATCH v1 0/9] Fix MMC properties on Sitara devices

Francesco Dolcini
2024-02-11T15:45:06Z

Hello Judith and TI folks,

On Wed, Feb 07, 2024 at 04:55:17PM -0600, Judith Mendez wrote:
> This patch series aims to add or fix MMC properties:
> OTAPDLY/ITAPDLY.
>
> The DLL properties ti,trm-icp and ti,driver-strength-ohm
> should also be updated since only AM64x and AM62p devices
> have a DLL to enable, so remove these properties when not
> applicable.

Do you have any reference regarding this change? TI reference manual or
anything like that?

No change needed in sdhci_am654.c? It seems that `drv_strength` is written
to some register unconditionally, is it ok to do so?

Do this change implies that there is no way to configure the drive
strength on such SoCs and MMC/SD trace impedance must be the nominal
50ohm?

Thanks,
Francesco