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mmc: sdhci: add support for realtek rts5250

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Add support for realtek rts5250 pci card reader. The card reader has
some problems with DDR50 mode, so add a new quirks2 for broken ddr50.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Chris Ball <chris@printf.net>
This commit is contained in:
Micky Ching
2014-02-21 18:40:35 +08:00
committed by Chris Ball
parent b13d1f0f9a
commit 9107ebbf96
3 changed files with 24 additions and 1 deletions
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3
drivers/mmc/host/sdhci.c
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@@ -3020,7 +3020,8 @@ int sdhci_add_host(struct sdhci_host *host)
} else if (caps[1] & SDHCI_SUPPORT_SDR50)
mmc->caps |= MMC_CAP_UHS_SDR50;
if (caps[1] & SDHCI_SUPPORT_DDR50)
if ((caps[1] & SDHCI_SUPPORT_DDR50) &&
!(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50))
mmc->caps |= MMC_CAP_UHS_DDR50;
/* Does the host need tuning for SDR50? */