From: Bastien Curutchet <bastien.curutchet@bootlin.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Herve Codina <herve.codina@bootlin.com>,
Christopher Cordahi <christophercordahi@nanometrics.ca>
Subject: Re: [PATCH] mtd: rawnand: davinci: Reduce polling interval in NAND_OP_WAITRDY_INSTR
Date: Thu, 19 Dec 2024 15:55:34 +0100 [thread overview]
Message-ID: <9edfc43a-7f2e-4036-9eaa-6666608085b8@bootlin.com> (raw)
In-Reply-To: <20241219-patch-nand-poll-v1-1-605e5f15f24a@bootlin.com>
Hi all,
On 12/19/24 3:25 PM, Bastien Curutchet wrote:
> For each NAND_OP_WAITRDY_INSTR operation, the NANDFSR register is
> polled only once every 100 us to check for the EMA_WAIT pin. This
> isn't frequent enough and causes delays in NAND accesses.
>
> Set the polling interval to 0s. It increases the page read speed
> reported by flash_speed by ~40% (~30% on page writes).
>
> ---
> Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
I just realized that this SOB should be above the '---'. Sorry about
that, I'll send a V2 right away.
Best regards,
Bastien
prev parent reply other threads:[~2024-12-19 14:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-19 14:25 Bastien Curutchet
2024-12-19 14:55 ` Bastien Curutchet [this message]
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