[PATCH 1/2] sdhci-of-esdhc: Support 8BIT bus width.
joakim.tjernlund at transmode.se
Tue May 5 07:17:27 AEST 2015
On Mon, 2015-05-04 at 19:31 +0200, Arnd Bergmann wrote:
> On Monday 04 May 2015 18:31:31 Joakim Tjernlund wrote:
> > @@ -252,6 +260,8 @@ static void esdhc_of_platform_init(struct sdhci_host *host)
> > if (vvn > VENDOR_V_22)
> > host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
> > +
> > + host->mmc->caps |= MMC_CAP_8_BIT_DATA;
> > }
> Shouldn't this check the "bus-width" property before setting the width?
> There might be an eMMC or SDIO with 4-bit interface connected.
This is for an eMMC chip we got and I THINK(this is new to me) that
this only allows 8 bit negotiation but I might be way off.
Anyone knows for sure?
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