On Wed, May 6, 2015 at 6:11 PM, Michal Simek <michal.si...@xilinx.com>
wrote:
> On 05/06/2015 10:40 AM, Arnd Bergmann wrote:
> > On Wednesday 06 May 2015 09:45:15 Michal Simek wrote:
> >> On 05/06/2015 09:31 AM, Arnd Bergmann wrote:
> >>> On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
> >>>>>> @@ -533,6 +567,16 @@
> >>>>>> interrupts = <0x0 0x4f 0x4>;
> >>>>>> };
> >>>>>>
> >>>>>> + sdhc0: sdhc@1c000000 {
> >>>>>> + device_type = "sdhc";
> >>>>>
> >>>>> device_type generally should not be used (there are a few
> exceptions).
> >>>>
> >>>> Okay !!
> >>>>
> >>>
> >>> While we're at it, please change sdhc@1c000000 to mmc@1c000000.
> >>> Even though Linux does not care, we try to use the standard device
> >>> names for consistency.
> >>
> >> Do we have a list of these names somewhere?
> >> Normally I do use ePARP - generic names recommendation but mmc or sdhci
> >> are not listed there.
> >> Both combination mmc@ or sdhci@ are used in the kernel.
> >>
> >> On zynq and zynqmp we do use shdci@.
> >>
> >
> > Ah, I thought ePAPR listed mmc already. Using "sdhci" is a little too
> > specific here, since a lot of mmc hosts are not sdhci compliant, and
> > "sdhc" is completely wrong, because that identifies a specific card
> > type, but a host that supports SDHC cards will generally also work
> > with SD (less than 4GB) or SDXC (more than 48GB) cards.
>
> Yes "sdhc" is completely wrong.
>
But spec name in search engine's gives SDHC 3.0 as general.
>
> Based on our datasheet(also version used on Zynq and ZynqMP) this IP is
> compliant with SD HC 3.00, SDIO 3.0, SD MC 3.01 SD MCS 1.01, MMC 4.51.
> Not sure about the version which they use.
> Also not sure which spec the IP should have to be able to say that we
> can use sdhci name. Do you have exact SPEC name?
>
I also think sdhci because the binding is sdhci written by Arasan. Anyway I
will change to sdhci.
>
> Thanks,
> Michal
>
>
--
Thanks,
with regards,
Suman Tripathi
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