From nobody Sat Feb 7 17:04:30 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E59CF34A3DF; Tue, 27 Jan 2026 12:22:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769516538; cv=none; b=iAE06EWptLmI0bVAGv397LahJISgtRfyU3MjZ9HDQ1SZyj+JpBT35nmezGZY0IDnoUf52TffjT/6ZAhWyzCvL+dzmyjbEOphacxPvUptEdBvAYtWFLUQ3RdmUF8ToBGcSb9iyjq9bdEVnPeGwJha6XlzlgGP67M1NgRPS+FDRTo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769516538; c=relaxed/simple; bh=0Gx6pPflLqJJwsoKgpHrXwFKJ2Y0GepGl3Xp9DuOrhs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hVVnJESi4jaOCg3EwfVTYCrdQmBFsIol5u3rI6t9c5rfecvM9LOxdJAtjr7nOjPgImhPen872hIb6cLVsrr9XZSc70umz+Rxect5A3ZYYylbLYIqB3q8ksoOvPE/vO4pWB58epUJ0IxgKlaRDbJmE/q92yXUNrYCFQz8jGuFza4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Tg94wtaB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Tg94wtaB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1AD8AC116C6; Tue, 27 Jan 2026 12:22:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769516537; bh=0Gx6pPflLqJJwsoKgpHrXwFKJ2Y0GepGl3Xp9DuOrhs=; h=From:To:Cc:Subject:Date:From; b=Tg94wtaB3LAy+HPZvLBVT+WKUJwgHhRSg47z3itDhL/7Lba/FMWRY1rE/NRmBbypu 7ZV8K3K+Dk9VYWAHwwglk7meODtyGSuaNAHmYNuXHfOz/GLu9n/HaqYuoJMsVOkS/9 Zt85UsuoMocgQFWvQ+9koRIW1hz7FchflaqDIuyzIl14fKSzsILCbJo8KKMOYGHK0o YA6vh56MJsbnag+EeLq20PqcoLBBmOfRIjI3zU86t1iudeyPF+2mnRPY1YA0hIP61V zVidudOySRAq9pEAV5EwKcsmc3P8Tqx+9wRcBZK0+ewqHVThbX4kaEJEU0INzmIGss eMbODG8zeWlQA== From: Michael Walle To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Udit Kumar , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Michael Walle Subject: [PATCH] arm64: dts: ti: k3-am67a-kontron-sa67-base: fix QSPI flash timing Date: Tue, 27 Jan 2026 13:22:03 +0100 Message-ID: <20260127122211.1064546-1-mwalle@kernel.org> 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" The boot flash is connected to the QSPI bus, but that bus is also connected to the edge connector. To prevent a stuck bus during boot. The signals to the edge connected are guarded by a FET switch. This FET switch needs a setup time of at least 80ns to disconnect the passthrough otherwise the first few clock cycles are still visible on the edge connector. Fix it by increasing the CS-to-clock timing to 120ns. Fixes: 1c3c4df06f9d ("arm64: dts: ti: Add support for Kontron SMARC-sAM67") Signed-off-by: Michael Walle --- arch/arm64/boot/dts/ti/k3-am67a-kontron-sa67-base.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/ti/k3-am67a-kontron-sa67-base.dts b/arch/a= rm64/boot/dts/ti/k3-am67a-kontron-sa67-base.dts index cdc9b5778041..9c0489514e04 100644 --- a/arch/arm64/boot/dts/ti/k3-am67a-kontron-sa67-base.dts +++ b/arch/arm64/boot/dts/ti/k3-am67a-kontron-sa67-base.dts @@ -957,7 +957,7 @@ flash@0 { cdns,tshsl-ns =3D <60>; cdns,tsd2d-ns =3D <60>; cdns,tchsh-ns =3D <60>; - cdns,tslch-ns =3D <60>; + cdns,tslch-ns =3D <120>; cdns,read-delay =3D <3>; vcc-supply =3D <&vcc_1p8_s0>; bootph-all; --=20 2.47.3