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[2003:e4:1f1b:d600:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id g26-20020a50ee1a000000b0051e2549c4f9sm1682516eds.47.2023.07.20.23.26.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Jul 2023 23:26:06 -0700 (PDT) Date: Fri, 21 Jul 2023 08:26:04 +0200 From: Thierry Reding To: Brad Griffis Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Hunter , devicetree@vger.kernel.org, linux-tegra@vger.kernel.org Subject: Re: [PATCH 2/2] arm64: tegra: fix p3767 QSPI speed Message-ID: References: <20230626180920.318774-1-bgriffis@nvidia.com> <20230626180920.318774-2-bgriffis@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="T5KJ6+6g4DwwNEek" Content-Disposition: inline In-Reply-To: <20230626180920.318774-2-bgriffis@nvidia.com> User-Agent: Mutt/2.2.10 (2023-03-25) Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org --T5KJ6+6g4DwwNEek Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jun 26, 2023 at 06:09:20PM +0000, Brad Griffis wrote: > The QSPI device used in Jetson Orin NX and Nano modules (p3767) is > the same as Jetson AGX Orin (p3701) and should have a max speed of > 102 MHz. >=20 > Fixes: 13b0aca303e9 ("arm64: tegra: Support Jetson Orin NX") > Signed-off-by: Brad Griffis > --- > arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) This was originally copied from the downstream DTB and I see 136 MHz for both P3701 and P3767 there. So now I wonder which one is correct. Should perhaps the P3701 be updated to 136 MHz instead if that's what is being used downstream? Thierry > diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi b/arch/arm64/= boot/dts/nvidia/tegra234-p3767.dtsi > index 831a553ec387..980f15ac674d 100644 > --- a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi > +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi > @@ -28,7 +28,7 @@ spi@3270000 { > flash@0 { > compatible =3D "jedec,spi-nor"; > reg =3D <0>; > - spi-max-frequency =3D <136000000>; > + spi-max-frequency =3D <102000000>; > spi-tx-bus-width =3D <4>; > spi-rx-bus-width =3D <4>; > }; > --=20 > 2.25.1 >=20 --T5KJ6+6g4DwwNEek Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAmS6JPwACgkQ3SOs138+ s6FMZw//fcfN/m8XheePjOs1wJLGh8XuaC6qGInAlcZWucfqXOjdoZrWt4QncepE wAYKM6AW47p0wFA2NSrtYLi/sCTuEBbi9HkjrHPpD4PpEvjyTgK8xzJ87cngorPM tHXCmJJ2igwU7z9gUA7PFEb0coDjy3b5TFyFvilQc+DNG9LvYRjY0g9b1HYYpqeu sP7V3wtpGr/cGTw7C0DMq+IwI36EPdfDv5e73vpvwB2I5lu/KMi/p2p6OFpuS+o/ 3d3eyGbyMVWQf7zpOJpJzwqbb8zCLYrYmwAqqnjRed3VKHn/4asLffzjAhkBhO0I 7u99DOPbXfJKtxUbBxMO0rvLAcs2nqlcKbZOuMRooAbTF/mD9vcrBYKdQPnGPckn ES+MFT2oVbC5foFuZmnroAd47t90uJ8Unw9sXBxdfyrqmbtgOiijKsqecUkhYBdu GoTWkrD3J58pdfXEeR3URrkvmapbV9EKT3MqFkHGljfaI4ZZbnGDMy/WcUZ8wFsO 3huVzQYsOJHegi6CKHH68TaNmgFYnbERJXDEPKYIQa9y2Ks7Mw3S3uOe/Cm52AsU 8vBubPJeeIMZnQl/KR8xR99Bhn0keXJR6OIoWD0gPE++mEvS6sbLff+qXyYiHNOb oRVe3UDsUXUDTyLjSh2DprEIHnp1TfXJ+ufxu4TaU+F8h7ExFXc= =TKGC -----END PGP SIGNATURE----- --T5KJ6+6g4DwwNEek--