From: Judith Mendez <jm@ti.com>
To: Ulf Hansson <ulf.hansson@linaro.org>, Nishanth Menon <nm@ti.com>,
Adrian Hunter <adrian.hunter@intel.com>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
Tero Kristo <kristo@kernel.org>,
Josua Mayer <josua@solid-run.com>, <linux-mmc@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Francesco Dolcini <francesco@dolcini.it>,
Hiago De Franco <hialgofranco@gmail.com>
Subject: Re: [PATCH v3 0/3] Add ti,suppress-v1p8-ena
Date: Tue, 22 Apr 2025 16:03:24 -0500 [thread overview]
Message-ID: <d271122d-fabb-482f-b5ac-35af56de32f8@ti.com> (raw)
In-Reply-To: <20250422204413.272679-1-jm@ti.com>
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
prev parent reply other threads:[~2025-04-22 21:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-22 20:44 [PATCH v3 0/3] Add ti,suppress-v1p8-ena Judith Mendez
2025-04-22 20:44 ` [PATCH v3 1/3] dt-bindings: mmc: sdhci-am654: " Judith Mendez
2025-04-22 20:44 ` [PATCH v3 2/3] mmc: sdhci_am654: Add sdhci_am654_start_signal_voltage_switch Judith Mendez
2025-04-22 20:44 ` [PATCH v3 3/3] arm64: dts: ti: k3-am62*: add ti,suppress-v1p8-ena Judith Mendez
2025-04-22 21:03 ` Judith Mendez [this message]
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