linux-kernel - Re: [PATCH v3 0/3] Add ti,suppress-v1p8-ena

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <d271122d-fabb-482f-b5ac-35af56de32f8@ti.com>
Date: Tue, 22 Apr 2025 16:03:24 -0500
From: Judith Mendez <jm@...com>
To: Ulf Hansson <ulf.hansson@...aro.org>, Nishanth Menon <nm@...com>,
        Adrian
 Hunter <adrian.hunter@...el.com>
CC: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>,
        Josua Mayer <josua@...id-run.com>, <linux-mmc@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Francesco Dolcini <francesco@...cini.it>,
        Hiago De Franco
	<hialgofranco@...il.com>
Subject: Re: [PATCH v3 0/3] Add ti,suppress-v1p8-ena

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