From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Florian Vaussard <florian.vaussard@heig-vd.ch>
Cc: Chen-Yu Tsai <wens@csie.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org,
Andre Przywara <andre.przywara@arm.com>
Subject: Re: [PATCH v4 0/13] arm64: allwinner: a64: Enable MMC support
Date: Fri, 27 Jan 2017 22:27:06 +0100 [thread overview]
Message-ID: <20170127212706.c65js5aw7itugfky@lukather> (raw)
In-Reply-To: <e4133504-8bc7-a9ac-209d-3d8cba119fed@heig-vd.ch>
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Hi Florian,
On Fri, Jan 27, 2017 at 11:37:27AM +0100, Florian Vaussard wrote:
> Hi Maxime,
>
> On 01/26/2017 10:05 AM, Maxime Ripard wrote:
> > Hi,
> >
> > Here is a new attempt at getting the MMC controllers running, following the
> > work done by Andre.
> >
> > This has been tested on a board with one SDIO device (a Marvell WiFi chip)
> > and a Kingston eMMC with 1.8V IOs.
> >
> > For SDIO, the HS DDR mode works just fine. That serie also enables the
> > SDR104 mode to work on the devices that are capable of this.
> >
> > For the eMMC, HS200 with the voltage switch works. HS400 doesn't at the
> > moment, but since it's significantly more complex, and at the same time
> > Allwinner recommends to limit its frequency to 100MHz, this doesn't have
> > any benefits. If there's any at some point, this can be added later.
> >
> > Let me know what you think,
> > Maxime
> >
>
> FWIW I tested this series and got decent throughput (190 Mbps in UDP) with a
> Marvell SDIO Wifi chip. The board becomes unresponsive between 30 to 60 minutes
> of iperf torture, but I strongly suspect a hardware issue underneath. Feel free
> to add my Tested-by on the MMC patches if you need it.
Thanks for testing!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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prev parent reply other threads:[~2017-01-27 21:27 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-26 9:05 [PATCH v4 0/13] arm64: allwinner: a64: Enable MMC support Maxime Ripard
2017-01-26 9:05 ` [PATCH v4 1/13] mmc: sunxi: Fix clock frequency change sequence Maxime Ripard
2017-01-26 9:05 ` [PATCH v4 2/13] mmc: sunxi: Gate the clock when rate is 0 Maxime Ripard
2017-01-26 9:05 ` [PATCH v4 3/13] mmc: sunxi: Always set signal delay to 0 for A64 Maxime Ripard
2017-01-26 9:05 ` [PATCH v4 4/13] mmc: sunxi: Enable the new timings for the A64 MMC controllers Maxime Ripard
2017-01-26 9:05 ` [PATCH v4 5/13] mmc: sunxi: Mask DATA0 when updating the clock Maxime Ripard
2017-01-26 9:05 ` [PATCH v4 6/13] mmc: sunxi: Add EMMC (MMC2) controller compatible Maxime Ripard
2017-01-26 9:06 ` [PATCH v4 7/13] mmc: sunxi: Add more debug informations Maxime Ripard
2017-01-26 9:06 ` [PATCH v4 8/13] arm64: allwinner: a64: Add MMC nodes Maxime Ripard
2017-01-26 9:06 ` [PATCH v4 9/13] arm64: allwinner: a64: Add MMC pinctrl nodes Maxime Ripard
2017-01-26 9:06 ` [PATCH v4 10/13] arm64: allwinner: a64: Increase the MMC max frequency Maxime Ripard
2017-01-27 10:29 ` Florian Vaussard
2017-01-27 21:26 ` Maxime Ripard
2017-01-26 9:06 ` [PATCH v4 11/13] arm64: allwinner: pine64: add MMC support Maxime Ripard
2017-01-26 9:06 ` [PATCH v4 12/13] arm64: allwinner: a64: add UART1 pin nodes Maxime Ripard
2017-01-26 9:06 ` [PATCH v4 13/13] arm64: allwinner: add BananaPi-M64 support Maxime Ripard
2017-01-27 10:37 ` [PATCH v4 0/13] arm64: allwinner: a64: Enable MMC support Florian Vaussard
2017-01-27 21:27 ` Maxime Ripard [this message]
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