On Dec 19, 2007 11:21 PM, <[EMAIL PROTECTED]> wrote:
> Revision 4057 Author cliff Date 2007-12-19 22:20:53 -0600 (Wed, 19 Dec
> 2007)
> Log Message bug[#3535]BF54x sdh only support 1 bit MMC ,so if the inserted
> card is MMC,disable 4 bit mode
>
> trunk/drivers/mmc/core/mmc.c
we cant go around hacking on common code because our hardware/drivers
are inferior
> --- trunk/drivers/mmc/core/mmc.c 2007-12-20 02:34:17 UTC (rev 4056)
> +++ trunk/drivers/mmc/core/mmc.c 2007-12-20 04:20:53 UTC (rev 4057)
> @@ -358,6 +358,9 @@
> /*
> * Activate wide bus (if supported).
> */
> +/*Currently,Blackfin 54x only support 1 bit MMC,while support 4 bit SD */
> +/*So if card type is MMC don't enable 4 bit mode*/
> +#if !defined(CONFIG_BF54x)
> if ((card->csd.mmca_vsn >= CSD_SPEC_VER_4) &&
> (host->caps & MMC_CAP_4_BIT_DATA)) {
> err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
> @@ -367,7 +370,7 @@
>
> mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
> }
> -
> +#endif
if we cant do 4 bit mmc, then remove MMC_CAP_4_BIT_DATA from the
Blackfin caps in host/bfin_sdh.c
-mike
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