From: Thierry Reding <thierry.reding@gmail.com>
To: Brad Griffis <bgriffis@nvidia.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Jonathan Hunter <jonathanh@nvidia.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>
Subject: Re: [PATCH 2/2] arm64: tegra: fix p3767 QSPI speed
Date: Wed, 16 Aug 2023 18:17:47 +0200 [thread overview]
Message-ID: <ZNz2qzVsDBVgdXA9@orome> (raw)
In-Reply-To: <CH2PR12MB427838F14EA7C962C97C4B9CAC14A@CH2PR12MB4278.namprd12.prod.outlook.com>
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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 <bgriffis@nvidia.com>
> > > ---
> > > 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?
>
> Downstream we have changed both p3701 and p3767 to use 102 MHz. That is
> the max speed for Quad I/O DTR reads.
Alright, I must've looked at an older version of the downstream DTB.
Applied, thanks.
Thierry
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next prev parent reply other threads:[~2023-08-16 16:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-26 18:09 [PATCH 1/2] arm64: tegra: fix p3767 card detect polarity Brad Griffis
2023-06-26 18:09 ` [PATCH 2/2] arm64: tegra: fix p3767 QSPI speed Brad Griffis
2023-07-21 6:26 ` Thierry Reding
2023-08-15 13:38 ` Brad Griffis
2023-08-16 16:17 ` Thierry Reding [this message]
2023-07-21 6:21 ` [PATCH 1/2] arm64: tegra: fix p3767 card detect polarity Thierry Reding
2023-08-15 13:37 ` Brad Griffis
2023-08-16 16:18 ` Thierry Reding
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