diff options
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 4 | ||||
| -rw-r--r-- | include/linux/mmc/sdhci.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index ec3e984129dc..f78c5b1329eb 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2867,6 +2867,10 @@ int sdhci_add_host(struct sdhci_host *host) SDHCI_SUPPORT_DDR50); } + if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V) + caps[1] &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | + SDHCI_SUPPORT_DDR50); + /* Any UHS-I mode in caps implies SDR12 and SDR25 support. */ if (caps[1] & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_DDR50)) diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index b34f3eb95f64..4bbc3301fbbf 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -92,6 +92,8 @@ struct sdhci_host { #define SDHCI_QUIRK2_HOST_OFF_CARD_ON (1<<0) #define SDHCI_QUIRK2_HOST_NO_CMD23 (1<<1) +/* The system physically doesn't support 1.8v, even if the host does */ +#define SDHCI_QUIRK2_NO_1_8_V (1<<2) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ |