P4080 eSDHC errata 12 describes incorrect default value of the
the host controller capabilities register.

The default value of the VS18 and VS30 fields in the host controller
capabilities register (HOSTCAPBLT) are incorrect. The default of these bits
should be zero instead of one in the eSDHC logic.

This patch adds the workaround for these errata.

Signed-off-by: Roy Zang <redacted>
---
 drivers/mmc/host/sdhci-of-core.c |    3 +++
 drivers/mmc/host/sdhci.c         |    6 ++++++
 include/linux/mmc/sdhci.h        |    4 ++++
 3 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-core.c b/drivers/mmc/host/sdhci-of-core.c
index fede43d..9bdd30d 100644
--- a/drivers/mmc/host/sdhci-of-core.c
+++ b/drivers/mmc/host/sdhci-of-core.c

@@ -182,6 +182,9 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev)
 	if (of_device_is_compatible(np, "fsl,esdhc"))
 		host->quirks |= SDHCI_QUIRK_QORIQ_PROCTL_WEIRD;
 
+	if (of_device_is_compatible(np, "fsl,p4080-esdhc"))
+		host->quirks |= SDHCI_QUIRK_QORIQ_HOSTCAPBLT_ONLY_VS33;