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[2003:e4:1f1b:d600:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id g26-20020aa7d1da000000b005256d80cdaesm3336881edp.65.2023.08.16.09.17.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Aug 2023 09:17:48 -0700 (PDT) Date: Wed, 16 Aug 2023 18:17:47 +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="1+3UwKwcc8t9JZzq" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.2.10 (2023-03-25) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --1+3UwKwcc8t9JZzq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 15, 2023 at 01:38:35PM +0000, Brad Griffis wrote: > On Fri, Jul 21, 2023 at 6:26 AM +0000, Thierry Reding wrote: > > 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. > > > > > > 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(-) > >=20 > > 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? >=20 > Downstream we have changed both p3701 and p3767 to use 102 MHz. That is > the max speed for Quad I/O DTR reads.=20 Alright, I must've looked at an older version of the downstream DTB. Applied, thanks. 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