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mmc: ignore bad max block size in sdhci 

Some SDHC cards report an invalid maximum block size, in these cases
assume they support block sizes up to 512 bytes instead of returning
an error.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
hifive-unleashed-5.1
David Vrabel 2007-08-10 13:25:03 +01:00 committed by Pierre Ossman
parent 2b06197340
commit 03f8590d90
1 changed files with 4 additions and 5 deletions
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9
drivers/mmc/host/sdhci.c
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@ -1347,12 +1347,11 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
*/
mmc->max_blk_size = (caps & SDHCI_MAX_BLOCK_MASK) >> SDHCI_MAX_BLOCK_SHIFT;
if (mmc->max_blk_size >= 3) {
printk(KERN_ERR "%s: Invalid maximum block size.\n",
printk(KERN_WARNING "%s: Invalid maximum block size, assuming 512\n",
host->slot_descr);
ret = -ENODEV;
goto unmap;
}
mmc->max_blk_size = 512 << mmc->max_blk_size;
mmc->max_blk_size = 512;
} else
mmc->max_blk_size = 512 << mmc->max_blk_size;
/*
* Maximum block count.