From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: linux-renesas-soc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
devicetree@vger.kernel.org
Subject: Re: [RFC PATCH] ARM: dts: renesas: r9a06g032-rzn1d400-db: add QSPI node including NOR flash
Date: Sun, 18 Jan 2026 09:58:59 +0100 [thread overview]
Message-ID: <aWyg0wP89BCaN1tN@shikoro> (raw)
In-Reply-To: <874ioltu94.fsf@bootlin.com>
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> > The tuning values used came from Miquel and work here as well. An
> > interested party may try to tune this further but I will go the safe
> > route here.
>
> In case you feel adventurous, this paragraph made me remember that I had
> noted down some slightly more aggressive values related to the DB board
> (which I don't have) in some of my notes. A bit of digging resurrected
> the following:
>
> tshsl-ns = <30>;
> tsd2d-ns = <3>;
> tchsh-ns = <3>;
> tslch-ns = <3>;
Yes, these values can be found in the BSP and could be deduced from the
SPI-NOR datasheet, too. However, I got -ETIMEDOUT with these. Didn't
investigate further (and no time to do so).
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next prev parent reply other threads:[~2026-01-18 8:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-16 11:48 [RFC PATCH] ARM: dts: renesas: r9a06g032-rzn1d400-db: add QSPI node including NOR flash Wolfram Sang
2026-01-16 16:08 ` Miquel Raynal
2026-01-18 8:58 ` Wolfram Sang [this message]
2026-01-19 16:40 ` Geert Uytterhoeven
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