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Wed, 07 Jan 2026 14:57:52 -0800 (PST) Message-ID: <6c90102537c3e3f1712538ca0b165cd54d71d8c2.camel@gmail.com> Subject: Re: [PATCH] arm64: dts: ti: k3-am62a7-sk: Disable mmc Schmitt Trigger From: Alexander Sverdlin To: Markus Schneider-Pargmann , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Sebin Francis , Kendall Willis , Akashdeep Kaur , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 07 Jan 2026 23:57:53 +0100 In-Reply-To: References: <20260106-topic-am62a-mmc-pinctrl-v6-19-next-v1-1-1190ac29aadb@baylibre.com> <979eb1054dbe116c2c8bb9920e94e3a93db5346c.camel@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi Markus, On Tue, 2026-01-06 at 21:25 +0100, Markus Schneider-Pargmann wrote: > > I think we would need to discuss this with TI via our FAE, because the = change > > in question has both been discussed with former FAE and the technical t= eam > > behind, and adopted in TI SDK. > >=20 > > Or have you already discused this with corresponding TI HW team? > >=20 > > Which hardware is affected, is it the official SK-AM62A-LP? > > Is MMC2 the SD-card? >=20 > I only tested my am62a board on u-boot v2026.01. It is a SK-AM62A-LP. > MMC2 is the SD-card and mmc1 in the devicetree. just wanted to let you know, I was able to reproduce the problems with SD card access via MMC2 under Linux on AM623 with ST enabled. We will seek clarification from TI on why this happens, which peripherals are affected and what should be the course of actions. --=20 Alexander Sverdlin.