From: Masahiro Yamada <masahiroy@kernel.org>
To: Ralph Siemsen <ralph.siemsen@linaro.org>
Cc: linux-mtd <linux-mtd@lists.infradead.org>,
Marek Vasut <marex@denx.de>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] mtd: rawnand: denali: add more delays before latching incoming data
Date: Mon, 5 Jul 2021 01:00:43 +0900 [thread overview]
Message-ID: <CAK7LNASvYVyEQ4M_zEUdw9K9AB-RVErKoqFMQZ5OSKJF0AoBww@mail.gmail.com> (raw)
In-Reply-To: <20210630184741.GA1037365@maple.netwinder.org>
On Thu, Jul 1, 2021 at 3:47 AM Ralph Siemsen <ralph.siemsen@linaro.org> wrote:
>
> On Tue, Mar 17, 2020 at 04:18:21PM +0900, Masahiro Yamada wrote:
> >
> >Marek Vasut reported this driver in the latest kernel does not work
> >on his SOCFPGA board. (The on-board NAND chip is mode 5)
>
> In a bit of an ironic twist, this change seems to cause a regression for
> me. I'm also using a Cyclone V SoC system, similar but not the same as
> the SOCFPGA eval board. The NAND device in my case is S34ML04G2.
>
> It worked fine in 4.9, 4.19 and 5.4 kernels. However after upgrading to
> 5.10 the NAND driver fails with "timeout while waiting for irq 0x4",
> just as was reported back in 2018:
> https://lore.kernel.org/linux-mtd/737ejrj81y.fsf@pengutronix.de/
>
> Reverting commit 5756f2e8dad46eba6e2d3e530243b8eff4dd5a42 restores the
> behaviour in my case, but that would presumably break the SOCFPGA board.
>
> Any thoughts on how we could make it work for everybody?
>
> Ralph
I no longer have any hardware to test this driver.
If you increase data_setup_on_host (the current value is 10000),
will it solve your issue?
--
Best Regards
Masahiro Yamada
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next prev parent reply other threads:[~2021-07-04 16:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-17 7:18 [PATCH v2] mtd: rawnand: denali: add more delays before latching incoming data Masahiro Yamada
2020-04-22 15:29 ` Marek Vasut
2020-04-22 15:36 ` Miquel Raynal
2020-04-22 15:37 ` Marek Vasut
2020-05-10 20:06 ` Miquel Raynal
2021-06-30 18:47 ` Ralph Siemsen
2021-07-04 16:00 ` Masahiro Yamada [this message]
2021-07-05 14:48 ` Ralph Siemsen
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