From: Tony Lindgren <tony@atomide.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Russell King <linux@armlinux.org.uk>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
devicetree@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-omap <linux-omap@vger.kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 08/16] mmc: sdhci-omap: Add support to override f_max and iodelay from pdata
Date: Wed, 14 Feb 2018 09:24:56 -0800 [thread overview]
Message-ID: <20180214172455.GO6364@atomide.com> (raw)
In-Reply-To: <CAPDyKFrhpry40TCjmQ_-WO-EWa2BCL0eNXLZB_UobGaYbsBiHA@mail.gmail.com>
* Ulf Hansson <ulf.hansson@linaro.org> [180214 09:53]:
> On 5 February 2018 at 13:50, Kishon Vijay Abraham I <kishon@ti.com> wrote:
> > DRA74x EVM Rev H EVM comes with revision 2.0 silicon. However, earlier
> > versions of EVM can come with either revision 1.1 or revision 1.0 of
> > silicon.
> >
> > The device-tree file is written to support rev 2.0 of silicon.
> > pdata-quirks are used to then override the settings needed for
> > PG 1.1 silicon.
> >
> > PG 1.1 silicon has limitations w.r.t frequencies at which MMC1/2/3
> > can operate as well as different IOdelay numbers.
>
> I fail to understand the need for platform data. Why can't DT be used
> for the older revisions as well?
Maybe the silicon revision is not available via soc_device_match()?
Regards,
Tony
WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 08/16] mmc: sdhci-omap: Add support to override f_max and iodelay from pdata
Date: Wed, 14 Feb 2018 09:24:56 -0800 [thread overview]
Message-ID: <20180214172455.GO6364@atomide.com> (raw)
In-Reply-To: <CAPDyKFrhpry40TCjmQ_-WO-EWa2BCL0eNXLZB_UobGaYbsBiHA@mail.gmail.com>
* Ulf Hansson <ulf.hansson@linaro.org> [180214 09:53]:
> On 5 February 2018 at 13:50, Kishon Vijay Abraham I <kishon@ti.com> wrote:
> > DRA74x EVM Rev H EVM comes with revision 2.0 silicon. However, earlier
> > versions of EVM can come with either revision 1.1 or revision 1.0 of
> > silicon.
> >
> > The device-tree file is written to support rev 2.0 of silicon.
> > pdata-quirks are used to then override the settings needed for
> > PG 1.1 silicon.
> >
> > PG 1.1 silicon has limitations w.r.t frequencies at which MMC1/2/3
> > can operate as well as different IOdelay numbers.
>
> I fail to understand the need for platform data. Why can't DT be used
> for the older revisions as well?
Maybe the silicon revision is not available via soc_device_match()?
Regards,
Tony
next prev parent reply other threads:[~2018-02-14 17:24 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-05 12:50 [PATCH v2 00/16] mmc: sdhci-omap: Add UHS/HS200 mode support Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 01/16] mmc: sdhci-omap: Update 'power_mode' outside sdhci_omap_init_74_clocks Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 02/16] mmc: sdhci-omap: Add card_busy host ops Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 03/16] mmc: sdhci-omap: Add custom set_uhs_signaling sdhci_host ops Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 04/16] mmc: sdhci-omap: Add tuning support Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 05/16] mmc: sdhci-omap: Workaround for Errata i802 Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 06/16] mmc: sdhci_omap: Add support to set IODELAY values Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 07/16] mmc: sdhci_omap: Fix sdhci-omap quirks Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 08/16] mmc: sdhci-omap: Add support to override f_max and iodelay from pdata Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-14 9:53 ` Ulf Hansson
2018-02-14 9:53 ` Ulf Hansson
2018-02-14 17:24 ` Tony Lindgren [this message]
2018-02-14 17:24 ` Tony Lindgren
2018-02-16 8:08 ` Kishon Vijay Abraham I
2018-02-16 8:08 ` Kishon Vijay Abraham I
2018-02-16 8:08 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 09/16] mmc: sdhci: Add quirk to disable HW timeout Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-19 8:51 ` Adrian Hunter
2018-02-19 8:51 ` Adrian Hunter
2018-02-19 8:51 ` Adrian Hunter
2018-03-05 9:30 ` Kishon Vijay Abraham I
2018-03-05 9:30 ` Kishon Vijay Abraham I
2018-03-05 9:30 ` Kishon Vijay Abraham I
2018-03-05 9:38 ` Adrian Hunter
2018-03-05 9:38 ` Adrian Hunter
2018-03-14 13:25 ` Kishon Vijay Abraham I
2018-03-14 13:25 ` Kishon Vijay Abraham I
2018-03-14 13:25 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 10/16] mmc: sdhci: Fix to use data_timer only for data line commands Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-19 8:03 ` Adrian Hunter
2018-02-19 8:03 ` Adrian Hunter
2018-02-19 8:03 ` Adrian Hunter
2018-02-19 12:55 ` Kishon Vijay Abraham I
2018-02-19 12:55 ` Kishon Vijay Abraham I
2018-02-19 12:55 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 11/16] mmc: sdhci: Program a relatively accurate SW timeout value Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
[not found] ` <20180205125029.21570-12-kishon-l0cyMroinI0@public.gmane.org>
2018-02-16 7:17 ` Kishon Vijay Abraham I
2018-02-16 7:17 ` Kishon Vijay Abraham I
2018-02-16 7:17 ` Kishon Vijay Abraham I
2018-02-19 9:24 ` Adrian Hunter
2018-02-19 9:24 ` Adrian Hunter
2018-02-19 9:24 ` Adrian Hunter
2018-02-19 13:13 ` Adrian Hunter
2018-02-19 13:13 ` Adrian Hunter
2018-02-19 13:13 ` Adrian Hunter
2018-02-05 12:50 ` [PATCH v2 12/16] mmc: sdhci-omap: Workaround for Errata i834 Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 13/16] dt-bindings: sdhci-omap: Add K2G specific binding Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` [PATCH v2 14/16] mmc: sdhci-omap: Add support for MMC/SD controller in k2g SoC Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
[not found] ` <20180205125029.21570-1-kishon-l0cyMroinI0@public.gmane.org>
2018-02-05 12:50 ` [PATCH v2 15/16] mmc: sdhci-omap: Add SPDX identifier Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
[not found] ` <20180205125029.21570-16-kishon-l0cyMroinI0@public.gmane.org>
2018-02-05 21:50 ` Joe Perches
2018-02-05 21:50 ` Joe Perches
2018-02-05 21:50 ` Joe Perches
2018-02-19 9:33 ` Adrian Hunter
2018-02-19 9:33 ` Adrian Hunter
2018-02-19 9:33 ` Adrian Hunter
2018-02-14 10:38 ` [PATCH v2 00/16] mmc: sdhci-omap: Add UHS/HS200 mode support Ulf Hansson
2018-02-14 10:38 ` Ulf Hansson
2018-02-14 10:38 ` Ulf Hansson
2018-02-05 12:50 ` [PATCH v2 16/16] ARM: OMAP2+: Use sdhci-omap specific pdata-quirks for MMC/SD on DRA74x EVM Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
2018-02-05 12:50 ` Kishon Vijay Abraham I
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