| Message ID | 20180425120937.29867-10-kishon@ti.com |
|---|---|
| State | New |
| Headers | show |
| Series | mmc: sdhci-omap: Add UHS/HS200 mode support | expand |
On 25/04/18 15:09, Kishon Vijay Abraham I wrote: > Errata i834 in AM572x Sitara Processors Silicon Revision 2.0, 1.1 > (SPRZ429L July 2014–Revised April 2018 [1]) mentions the maximum > obtainable timeout through MMC host controller is 700ms. And for > commands taking longer than 700ms, hardware timeout should be > disabled and software timeout should be used. > > The workaround for Errata i834 can be achieved by adding > SDHCI_QUIRK2_DISABLE_HW_TIMEOUT quirk in sdhci-omap. > > [1] -> http://www.ti.com/lit/er/sprz429l/sprz429l.pdf > > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> > Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> > --- > drivers/mmc/host/sdhci-omap.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c > index 2d9ea23610d5..b2c54940d032 100644 > --- a/drivers/mmc/host/sdhci-omap.c > +++ b/drivers/mmc/host/sdhci-omap.c > @@ -715,7 +715,8 @@ static const struct sdhci_pltfm_data sdhci_omap_pdata = { > SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC, > .quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN | > SDHCI_QUIRK2_PRESET_VALUE_BROKEN | > - SDHCI_QUIRK2_RSP_136_HAS_CRC, > + SDHCI_QUIRK2_RSP_136_HAS_CRC | > + SDHCI_QUIRK2_DISABLE_HW_TIMEOUT, > .ops = &sdhci_omap_ops, > }; > > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c index 2d9ea23610d5..b2c54940d032 100644 --- a/drivers/mmc/host/sdhci-omap.c +++ b/drivers/mmc/host/sdhci-omap.c @@ -715,7 +715,8 @@ static const struct sdhci_pltfm_data sdhci_omap_pdata = { SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC, .quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN | SDHCI_QUIRK2_PRESET_VALUE_BROKEN | - SDHCI_QUIRK2_RSP_136_HAS_CRC, + SDHCI_QUIRK2_RSP_136_HAS_CRC | + SDHCI_QUIRK2_DISABLE_HW_TIMEOUT, .ops = &sdhci_omap_ops, };