From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Chen-Yu Tsai <wens@csie.org>
Cc: devicetree@vger.kernel.org, Ulf Hansson <ulf.hansson@linaro.org>,
Chris Blake <chrisrblake93@gmail.com>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org, linux-sunxi@googlegroups.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/3] mmc: sunxi: Disable HS-DDR mode for H5 eMMC controller by default
Date: Mon, 4 Feb 2019 10:32:14 +0100 [thread overview]
Message-ID: <20190204093214.7zbomq5cddacdrmj@flea> (raw)
In-Reply-To: <20190203155628.16767-2-wens@csie.org>
[-- Attachment #1.1: Type: text/plain, Size: 876 bytes --]
On Sun, Feb 03, 2019 at 11:56:26PM +0800, Chen-Yu Tsai wrote:
> Some H5 boards seem to not have proper trace lengths for eMMC to be able
> to use the default setting for the delay chains under HS-DDR mode. These
> include the Bananapi M2+ H5 and NanoPi NEO Core2. However the Libre
> Computer ALL-H3-CC-H5 works just fine.
>
> For the H5 (at least for now), default to not enabling HS-DDR modes in
> the driver, and expect the device tree to signal HS-DDR capability on
> boards that work.
>
> Reported-by: Chris Blake <chrisrblake93@gmail.com>
> Fixes: 07bafc1e3536 ("mmc: sunxi: Use new timing mode for A64 eMMC controller")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-02-04 9:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-03 15:56 mmc: sunxi: Fix eMMC usage on H5 boards Chen-Yu Tsai
2019-02-03 15:56 ` [PATCH 1/3] mmc: sunxi: Disable HS-DDR mode for H5 eMMC controller by default Chen-Yu Tsai
2019-02-04 9:32 ` Maxime Ripard [this message]
2019-02-03 15:56 ` [PATCH 2/3] mmc: sunxi: Filter out unsupported modes declared in the device tree Chen-Yu Tsai
2019-02-04 9:34 ` Maxime Ripard
2019-02-04 10:16 ` Chen-Yu Tsai
2019-02-04 13:41 ` Maxime Ripard
2019-02-05 8:42 ` Chen-Yu Tsai
2019-02-05 9:51 ` Maxime Ripard
2019-02-03 15:56 ` [PATCH 3/3] arm64: dts: allwinner: h5: libretech-all-h3-cc: Mark eMMC HS-DDR 3.3V capable Chen-Yu Tsai
2019-02-03 15:59 ` [PATCH 0/3] mmc: sunxi: Fix eMMC usage on H5 boards Chen-Yu Tsai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190204093214.7zbomq5cddacdrmj@flea \
--to=maxime.ripard@bootlin.com \
--cc=chrisrblake93@gmail.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=linux-sunxi@googlegroups.com \
--cc=stable@vger.kernel.org \
--cc=ulf.hansson@linaro.org \
--cc=wens@csie.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox