diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/s3cmci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index 2b483953697..6a1e4994b72 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -807,6 +807,17 @@ static int s3cmci_setup_data(struct s3cmci_host *host, struct mmc_data *data) return 0; } + if ((data->blksz & 3) != 0) { + /* We cannot deal with unaligned blocks with more than + * one block being transfered. */ + + if (data->blocks > 1) + return -EINVAL; + + /* No support yet for non-word block transfers. */ + return -EINVAL; + } + while (readl(host->base + S3C2410_SDIDSTA) & (S3C2410_SDIDSTA_TXDATAON | S3C2410_SDIDSTA_RXDATAON)) { |