From: Thierry Reding <thierry.reding@gmail.com>
To: Aapo Vienamo <avienamo@nvidia.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Mikko Perttunen <mperttunen@nvidia.com>,
linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/8] mmc: tegra: Implement HS400 enhanced strobe
Date: Thu, 9 Aug 2018 15:47:54 +0200 [thread overview]
Message-ID: <20180809134754.GE21639@ulmo> (raw)
In-Reply-To: <20180809152254.03b97af0@dhcp-10-21-25-168>
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On Thu, Aug 09, 2018 at 03:22:54PM +0300, Aapo Vienamo wrote:
> On Thu, 9 Aug 2018 13:43:45 +0200
> Thierry Reding <thierry.reding@gmail.com> wrote:
>
> > On Tue, Aug 07, 2018 at 04:59:59PM +0300, Aapo Vienamo wrote:
> > > Implement HS400 enhanced strobe.
> >
> > Can you provide a little more information about what the impact is of
> > this? Does this increase throughput? How much?
>
> The eMMC enhanced strobe is a mechanism that can be used instead of the
> HS400 tuning procedure. Note that the delay line calibration implemented
> later on in this series is Tegra specific and has to be performed
> regardless of which type of HS400 tuning mechanism is used.
Sounds like a variation of that would be good material for the commit
message.
Thierry
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next prev parent reply other threads:[~2018-08-09 13:47 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-07 13:59 [PATCH 0/8] Tegra SDHCI support HS400 on Tegra210 and Tegra186 Aapo Vienamo
2018-08-07 13:59 ` Aapo Vienamo
2018-08-07 13:59 ` [PATCH 1/8] dt-bindings: mmc: Add DQS trim value to Tegra SDHCI Aapo Vienamo
2018-08-07 13:59 ` Aapo Vienamo
2018-08-09 11:36 ` Thierry Reding
2018-08-09 11:45 ` Aapo Vienamo
2018-08-09 11:45 ` Aapo Vienamo
2018-08-09 13:46 ` Thierry Reding
2018-08-09 14:06 ` Aapo Vienamo
2018-08-09 14:06 ` Aapo Vienamo
2018-08-09 14:09 ` Thierry Reding
2018-08-07 13:59 ` [PATCH 2/8] mmc: tegra: Parse and program DQS trim value Aapo Vienamo
2018-08-07 13:59 ` Aapo Vienamo
2018-08-09 11:40 ` Thierry Reding
2018-08-09 11:42 ` Thierry Reding
2018-08-07 13:59 ` [PATCH 3/8] mmc: tegra: Implement HS400 enhanced strobe Aapo Vienamo
2018-08-07 13:59 ` Aapo Vienamo
2018-08-09 11:43 ` Thierry Reding
2018-08-09 12:22 ` Aapo Vienamo
2018-08-09 12:22 ` Aapo Vienamo
2018-08-09 13:47 ` Thierry Reding [this message]
2018-08-07 14:00 ` [PATCH 4/8] mmc: tegra: Implement HS400 delay line calibration Aapo Vienamo
2018-08-07 14:00 ` Aapo Vienamo
2018-08-09 11:48 ` Thierry Reding
2018-08-09 12:29 ` Aapo Vienamo
2018-08-09 12:29 ` Aapo Vienamo
2018-08-07 14:00 ` [PATCH 5/8] arm64: dts: tegra186: Add SDMMC4 DQS trim value Aapo Vienamo
2018-08-07 14:00 ` Aapo Vienamo
2018-08-09 11:49 ` Thierry Reding
2018-08-09 12:02 ` Aapo Vienamo
2018-08-09 12:02 ` Aapo Vienamo
2018-08-09 12:23 ` Peter Geis
2018-08-09 12:37 ` Aapo Vienamo
2018-08-09 12:37 ` Aapo Vienamo
2018-08-09 12:50 ` Peter Geis
2018-08-09 13:52 ` Thierry Reding
2018-08-07 14:00 ` [PATCH 6/8] arm64: dts: tegra210: " Aapo Vienamo
2018-08-07 14:00 ` Aapo Vienamo
2018-08-07 14:00 ` [PATCH 7/8] arm64: dts: tegra186: Enable HS400 Aapo Vienamo
2018-08-07 14:00 ` Aapo Vienamo
2018-08-07 14:00 ` [PATCH 8/8] arm64: dts: tegra210: " Aapo Vienamo
2018-08-07 14:00 ` Aapo Vienamo
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