mmc: Allow host drivers to specify a max block size

Most controllers have an upper limit on the block size. Allow the host
drivers to specify this and make sure we avoid hitting this limit.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/mmc/au1xmmc.c b/drivers/mmc/au1xmmc.c
index 6d6fe6e6d415..74e6ac0c7f71 100644
--- a/drivers/mmc/au1xmmc.c
+++ b/drivers/mmc/au1xmmc.c
@@ -922,6 +922,8 @@ static int __devinit au1xmmc_probe(struct platform_device *pdev)
                 mmc->max_seg_size = AU1XMMC_DESCRIPTOR_SIZE;
                 mmc->max_phys_segs = AU1XMMC_DESCRIPTOR_COUNT;
 
+                mmc->max_blk_size = 2048;
+
                 mmc->ocr_avail = AU1XMMC_OCR;
 
                 host = mmc_priv(mmc);