From nobody Mon Apr 6 09:25:57 2026 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3AF3F2877FC; Fri, 20 Mar 2026 07:30:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773991861; cv=none; b=opsKTWnbD9UJPxi0yaUxPmoCgKnw/5/SYqKdxlr9eodemwCi5MxMOe4X1WdOCdU2BgxtQtkALTjZLbe9dAQxVfszUharpZOpiXcGsoWrQaDgWrEceFGKOp3D4A22PWHqVT7pSROVYhRXPausSvEFO0OxKBcuK8eEJvhB2KbvUlw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773991861; c=relaxed/simple; bh=7ji0q7baxhgY9PE/uRK/LZAcCK4ctdgIZ/M8oQMSCPU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Hf4PkUxOLSu28tD7bh6kjdjwTGqCCTC0o6S5pjWtfewRfDKaPfFv1uKxnh+o5nqi5b+SLNUF/39YBFt1bnsLX0oBlASwFFyDWXwbR9URfAzOPnH8FHPa23VVNy8rEGWn8p4NOZZQzvkQG0aDi5hZkEvUV7LTcZVtryKun0Xqfsc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=SQUaOiMY; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="SQUaOiMY" Received: from localhost.localdomain (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id 8381922AF7; Fri, 20 Mar 2026 08:30:35 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1773991835; bh=xH0VS+5oYrn3GEvrAN6xwuAQOL7d7XH5bGrr/ehw4bA=; h=From:To:Subject; b=SQUaOiMYYlx4nC7GBeForsimWHapq/xFJNRiTVN+d4rNv7E7bYLeNQ6J0AJnb3TYC gqSCi8nVIkLAj7XjTzEmvXEj6EkeIal0KgAkUCcnvSCTGwS/Pdl8g+dlsRvQlarvoC xDi7c1c7nP/yRskqIswJHpa/wTfKifi3S+plXjCwV8kvslxlU3Ej+/UOLOzw7T0yti cSuum902jauynv82BVr6A1C//gKNalHncxi0P56OGrsdJwNjOnLEO8gMkUwemDqf0I IyD2WyScAShMLOm7RqDBLixuyxxZIwekHpF6DrX68Ep1WnKwaBRT9iTm45WLiIcZSA 6a9JJG8b8uPmQ== From: Francesco Dolcini To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Francesco Dolcini , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Judith Mendez , stable@vger.kernel.org Subject: [PATCH v1] arm64: dts: ti: am62-verdin: Enable pullup for eMMC data pins Date: Fri, 20 Mar 2026 08:30:30 +0100 Message-ID: <20260320073032.10427-1-francesco@dolcini.it> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Francesco Dolcini Verdin AM62 board does not have external pullups on eMMC DAT1-DAT7 pins. Enable internal pullups on DAT1-DAT7 considering: - without a host-side pullup, these lines rely solely on the eMMC device's internal pullup (R_int, 10kohm-150kohm per JEDEC), which may exceed the recommended 50kohm max for 1.8V VCCQ - JEDEC JESD84-B51 Table 200 requires host-side pullups (R_DAT, 10kohm-100kohm) on all data lines to prevent bus floating Fixes: 316b80246b16 ("arm64: dts: ti: add verdin am62") Cc: stable@vger.kernel.org Signed-off-by: Francesco Dolcini --- arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/d= ts/ti/k3-am62-verdin.dtsi index 2a7242a2fef8..09840a3b9fe7 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -572,16 +572,16 @@ AM62X_IOPAD(0x15c, PIN_INPUT, 0) /* (AB22) MDIO0_MDI= O */ /* ETH_1_MDIO, SODIMM /* On-module eMMC */ pinctrl_sdhci0: main-mmc0-default-pins { pinctrl-single,pins =3D < - AM62X_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */ - AM62X_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLK */ - AM62X_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */ - AM62X_IOPAD(0x210, PIN_INPUT, 0) /* (AA1) MMC0_DAT1 */ - AM62X_IOPAD(0x20c, PIN_INPUT, 0) /* (AA3) MMC0_DAT2 */ - AM62X_IOPAD(0x208, PIN_INPUT, 0) /* (Y4) MMC0_DAT3 */ - AM62X_IOPAD(0x204, PIN_INPUT, 0) /* (AB2) MMC0_DAT4 */ - AM62X_IOPAD(0x200, PIN_INPUT, 0) /* (AC1) MMC0_DAT5 */ - AM62X_IOPAD(0x1fc, PIN_INPUT, 0) /* (AD2) MMC0_DAT6 */ - AM62X_IOPAD(0x1f8, PIN_INPUT, 0) /* (AC2) MMC0_DAT7 */ + AM62X_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */ + AM62X_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLK */ + AM62X_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */ + AM62X_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (AA1) MMC0_DAT1 */ + AM62X_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (AA3) MMC0_DAT2 */ + AM62X_IOPAD(0x208, PIN_INPUT_PULLUP, 0) /* (Y4) MMC0_DAT3 */ + AM62X_IOPAD(0x204, PIN_INPUT_PULLUP, 0) /* (AB2) MMC0_DAT4 */ + AM62X_IOPAD(0x200, PIN_INPUT_PULLUP, 0) /* (AC1) MMC0_DAT5 */ + AM62X_IOPAD(0x1fc, PIN_INPUT_PULLUP, 0) /* (AD2) MMC0_DAT6 */ + AM62X_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */ >; }; =20 --=20 2.47.3