diff options
| -rw-r--r-- | drivers/mci/mci_spi.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mci/mci_spi.c b/drivers/mci/mci_spi.c index cb5e0bb981..08939bea58 100644 --- a/drivers/mci/mci_spi.c +++ b/drivers/mci/mci_spi.c @@ -366,6 +366,7 @@ static int spi_mci_probe(struct device_d *dev) struct spi_device *spi = (struct spi_device *)dev->type_data; struct mmc_spi_host *host; void *ones; + int status; host = xzalloc(sizeof(*host)); host->mci.send_cmd = mmc_spi_request; @@ -373,6 +374,16 @@ static int spi_mci_probe(struct device_d *dev) host->mci.init = mmc_spi_init; host->mci.hw_dev = dev; + /* MMC and SD specs only seem to care that sampling is on the + * rising edge ... meaning SPI modes 0 or 3. So either SPI mode + * should be legit. We'll use mode 0 since the steady state is 0, + * which is appropriate for hotplugging, unless the platform data + * specify mode 3 (if hardware is not compatible to mode 0). + */ + if (spi->mode != SPI_MODE_3) + spi->mode = SPI_MODE_0; + spi->bits_per_word = 8; + host->dev = dev; host->spi = spi; dev->priv = host; |