Jaehoon Chung wrote:
>
> Hi Seungwon
>
> This patch is looks fine to me..
>
> Just ask to you...Don't you want to locate MMC_CAP_MMC_HIGHSPEED in
> platdata?
Thank you for your comment.
Of course, I have considered appropriate location for MMC_CAP_MMC_HIGHSPEED.
But it seems to be difficult to distinguish a difference between MMC_CAP_SD_HIGHSPEED and MMC_CAP_MMC_HIGHSPEED,
if DW_MCI_QUIRK_HIGHSPEED is defined.
Beset regards,
Seungwon Jeon.
>
> Regards,
> Jaehoon Chung
>
>
> 2011/8/5 Will Newton <will.newton@xxxxxxxxx>:
> > On Fri, Aug 5, 2011 at 4:35 AM, Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
> wrote:
> >> Host driver can't get a hint of DDR mode through ios->ddr flag anymore.
> >> ios->timing is currently used to inform DDR mode as a substitute.
> >> And capability of MMC_CAP_MMC_HIGHSPEED is added for DDR support.
> >>
> >> Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
> >> ---
> >> drivers/mmc/host/dw_mmc.c | 4 ++--
> >> 1 files changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> >> index d65511e..b412a1d 100644
> >> --- a/drivers/mmc/host/dw_mmc.c
> >> +++ b/drivers/mmc/host/dw_mmc.c
> >> @@ -699,7 +699,7 @@ static void dw_mci_set_ios(struct mmc_host *mmc,
> struct mmc_ios *ios)
> >> }
> >>
> >> /* DDR mode set */
> >> - if (ios->ddr) {
> >> + if (ios->timing == MMC_TIMING_UHS_DDR50) {
> >> regs = mci_readl(slot->host, UHS_REG);
> >> regs |= (0x1 << slot->id) << 16;
> >> mci_writel(slot->host, UHS_REG, regs);
> >> @@ -1646,7 +1646,7 @@ static int __init dw_mci_init_slot(struct dw_mci
> *host, unsigned int id)
> >> mmc->caps |= MMC_CAP_4_BIT_DATA;
> >>
> >> if (host->pdata->quirks & DW_MCI_QUIRK_HIGHSPEED)
> >> - mmc->caps |= MMC_CAP_SD_HIGHSPEED;
> >> + mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
> >>
> >> #ifdef CONFIG_MMC_DW_IDMAC
> >> mmc->max_segs = host->ring_size;
> >> --
> >> 1.7.0.4
> >
> > Acked-by: Will Newton <will.newton@xxxxxxxxxx>
> > --
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> >
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