diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-of.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-of.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-of.c b/drivers/mmc/host/sdhci-of.c index 128c614d11a..1e8aa590bb3 100644 --- a/drivers/mmc/host/sdhci-of.c +++ b/drivers/mmc/host/sdhci-of.c @@ -158,6 +158,13 @@ static unsigned int esdhc_get_max_clock(struct sdhci_host *host) return of_host->clock; } +static unsigned int esdhc_get_min_clock(struct sdhci_host *host) +{ + struct sdhci_of_host *of_host = sdhci_priv(host); + + return of_host->clock / 256 / 16; +} + static unsigned int esdhc_get_timeout_clock(struct sdhci_host *host) { struct sdhci_of_host *of_host = sdhci_priv(host); @@ -184,6 +191,7 @@ static struct sdhci_of_data sdhci_esdhc = { .set_clock = esdhc_set_clock, .enable_dma = esdhc_enable_dma, .get_max_clock = esdhc_get_max_clock, + .get_min_clock = esdhc_get_min_clock, .get_timeout_clock = esdhc_get_timeout_clock, }, }; @@ -226,7 +234,7 @@ static int __devinit sdhci_of_probe(struct of_device *ofdev, return -ENODEV; host = sdhci_alloc_host(&ofdev->dev, sizeof(*of_host)); - if (!host) + if (IS_ERR(host)) return -ENOMEM; of_host = sdhci_priv(host); @@ -250,6 +258,9 @@ static int __devinit sdhci_of_probe(struct of_device *ofdev, host->ops = &sdhci_of_data->ops; } + if (of_get_property(np, "sdhci,1-bit-only", NULL)) + host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA; + clk = of_get_property(np, "clock-frequency", &size); if (clk && size == sizeof(*clk) && *clk) of_host->clock = *clk; |