diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 11 | ||||
| -rw-r--r-- | drivers/mmc/core/sd.c | 18 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 5 |
3 files changed, 31 insertions, 3 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index c528017..c2e120b 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -323,6 +323,17 @@ int mmc_attach_mmc(struct mmc_host *host, u32 ocr) mmc_attach_bus(host, &mmc_ops); + /* + * Sanity check the voltages that the card claims to + * support. + */ + if (ocr & 0x7F) { + printk(KERN_WARNING "%s: card claims to support voltages " + "below the defined range. These will be ignored.\n", + mmc_hostname(host)); + ocr &= ~0x7F; + } + host->ocr = mmc_select_voltage(host, ocr); /* diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 6c6beb4..fb18b30 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -297,6 +297,24 @@ int mmc_attach_sd(struct mmc_host *host, u32 ocr) mmc_attach_bus(host, &mmc_sd_ops); + /* + * Sanity check the voltages that the card claims to + * support. + */ + if (ocr & 0x7F) { + printk(KERN_WARNING "%s: card claims to support voltages " + "below the defined range. These will be ignored.\n", + mmc_hostname(host)); + ocr &= ~0x7F; + } + + if (ocr & MMC_VDD_165_195) { + printk(KERN_WARNING "%s: SD card claims to support the " + "incompletely defined 'low voltage range'. This " + "will be ignored.\n", mmc_hostname(host)); + ocr &= ~MMC_VDD_165_195; + } + host->ocr = mmc_select_voltage(host, ocr); /* diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index a57f6a3..ff5bf73 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -659,8 +659,7 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power) pwr = SDHCI_POWER_ON; switch (1 << power) { - case MMC_VDD_17_18: - case MMC_VDD_18_19: + case MMC_VDD_165_195: pwr |= SDHCI_POWER_180; break; case MMC_VDD_29_30: @@ -1280,7 +1279,7 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot) if (caps & SDHCI_CAN_VDD_300) mmc->ocr_avail |= MMC_VDD_29_30|MMC_VDD_30_31; if (caps & SDHCI_CAN_VDD_180) - mmc->ocr_avail |= MMC_VDD_17_18|MMC_VDD_18_19; + mmc->ocr_avail |= MMC_VDD_165_195; if (mmc->ocr_avail == 0) { printk(KERN_ERR "%s: Hardware doesn't report any " |
