[U-Boot] [U-BOOT] help on mmc driver

[Jagannadha Sutradharudu Teki]

Hi Lukasz Majewski,

Thanks for your information.

Thanks,
Jagan.

> -----Original Message-----
> From: Lukasz Majewski [mailto:l.majewski at samsung.com]
> Sent: 25 January 2013 00:20
> To: Jagannadha Sutradharudu Teki
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] [U-BOOT] help on mmc driver
>
> Hi Jagannadha,
>
> > Hi,
> >
> > I need some help on mmc driver development on u-boot.
> >
> > Few questions:
> > 1. is mmc framework in u-boot supports all type of card interfaces
> > like SD, MMC, and eMMC
>
> Yes there is a generic framework for MMC. -> ./drivers/mmc/ {mmc.c}
>
> > 2. If I write a driver do I need to develop the common driver for all
> > or a separate drivers for individual cards.
>
> This is a generic framework. Normally you only need to write MMC controller
> specific code to use it.
>
> > 3. Is there any drivers in current u-boot drivers/mmc have individual
> > card interfaces support (SD & MMC & eMMC)
>
> AS fair as I know there aren't any "special" drivers for any particular vendor.
>
> > 4. is there any drivers in
> > current u-boot driver/mmc  for common card intefaces (SD | MMC |
> eMMC)
>
> Yes, you can refer to mmc.c
> One good example is the sdhci.c code which serves for SD cards and eMMC
> (at least for Samsung).
>
> >
> > Request for help.
> >
> > Thanks,
> > Jagan.
> >
> >
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>
>
> --
> Best regards,
>
> Lukasz Majewski
>
> Samsung R&D Poland (SRPOL) | Linux Platform Group



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