On Thu, Jan 18, 2007 at 05:17:43PM +0000, Daniel Ribeiro wrote: > I am not able to mount a 2gb SD using the openezx kernel on my a780. > The same card works with the original motorola kernel. Are there any > known issues about that? >
Possible it's same issue as with 2Gb SD card. Such cards reports that they can use block size > 512 bytes but they can't. As a result I got I/O error. Little patch to force 512 bytes block size can help.. There are a lot of such patches available. I just set blocksize to 512 bytes after detection and printk() old value. -- WBR, Dmitry
--- ./mmc/mmc_block.c.orig 2006-04-27 13:14:07.000000000 +0300
+++ ./mmc/mmc_block.c 2006-12-21 01:36:02.000000000 +0200
@@ -364,6 +364,12 @@ static struct mmc_blk_data *mmc_blk_allo
ret = -EINVAL;
goto err_kfree;
}
+ /*
+ * Fix for 2Gb SD cards
+ */
+ printk(KERN_WARNING "mmc_block: detected block size is %u bytes. Forcing 512 bytes\n",
+ 1 << md->block_bits);
+ md->block_bits = 9;
md->disk = alloc_disk(1 << MMC_SHIFT);
if (md->disk == NULL) {
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