[PATCH v3 0/3] Add ti,suppress-v1p8-ena

[Judith Mendez]

Hi all,

On 4/22/25 3:44 PM, Judith Mendez wrote:
> There are MMC boot failures seen with V1P8_SIGNAL_ENA on Kingston eMMC
> and Microcenter/Patriot SD cards on Sitara K3 boards due to the HS200
> initialization sequence involving V1P8_SIGNAL_ENA. Since V1P8_SIGNAL_ENA
> is optional for eMMC, do not set V1P8_SIGNAL_ENA by default for eMMC.
> For SD cards we shall parse DT for ti,suppress-v1p8-ena property to
> determine whether to suppress V1P8_SIGNAL_ENA. Add new ti,suppress-v1p8-ena
> to am62x, am62ax, and am62px SoC dtsi files since there is no internal LDO
> tied to sdhci1 interface so V1P8_SIGNAL_ENA only affects timing.
> 
> This fix was previously merged in the kernel, but was reverted due
> to the "heuristics for enabling the quirk"[0]. This issue is adressed
> in this patch series by adding optional ti,suppress-v1p8-ena DT property
> which determines whether to apply the quirk for SD.
> 

Sorry for the noise. Please ignore this series, will be re-sending with
fixed cc list.

~ Judith