linux-kernel - Re: [PATCH v2 0/2] Fix V1P8_SIGNAL

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Message-ID: <aAFU8K9j4fZ-njwP@gaggiata.pivistrello.it>
Date: Thu, 17 Apr 2025 21:22:24 +0200
From: Francesco Dolcini <francesco@...cini.it>
To: Judith Mendez <jm@...com>
Cc: Ulf Hansson <ulf.hansson@...aro.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-mmc@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Josua Mayer <josua@...id-run.com>, Moteen Shah <m-shah@...com>,
	Francesco Dolcini <francesco@...cini.it>,
	Hiago De Franco <hiagofranco@...il.com>
Subject: Re: [PATCH v2 0/2] Fix V1P8_SIGNAL_ENA

On Thu, Apr 17, 2025 at 01:26:50PM -0500, Judith Mendez wrote:
> There are eMMC boot failures seen with V1P8_SIGNAL_ENA on Kingston
> eMMC and variouse types of SD cards on Sitara K3 SoCs due to the
> sequencing when enumerating to HS200 mode. 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 apply the quirk.

I assume this ti,suppress-v1p8-ena should be added to some SoC dtsi, am I
wrong?

Francesco