From patchwork Wed Jun  2 12:59:28 2010
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Subject: [U-Boot] cannot load file from ext2 partition on OMAP3 evm
Date: Wed, 02 Jun 2010 02:59:28 -0000
From: Mickael LANOE <mickael.lanoe@univ-ubs.fr>
X-Patchwork-Id: 71787
Message-Id: <4C0655B0.4070509@univ-ubs.fr>
To: u-boot@lists.denx.de

Hi,

The command ext2load does not work on the OMAP3 EVM.

The command line is:
# ext2load mmc 0:2 0x82000000 /boot/uImage

The error is:
ext2fs_devread() read error - block

After reading the u-boot source code, I see that the function
mmc_bread() in file drivers/mmc/omap3_mmc.c does not return the good value.

So I apply this small patch to fix the problem

Best regards,

Mickael LANOE


diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c
index 96c0e65..b555c73 100644
--- a/drivers/mmc/omap3_mmc.c
+++ b/drivers/mmc/omap3_mmc.c
@@ -507,9 +507,10 @@ unsigned char configure_mmc(mmc_card_data *mmc_card_cur)
 unsigned long mmc_bread(int dev_num, unsigned long blknr, lbaint_t blkcnt,
                        void *dst)
 {
-       omap_mmc_read_sect(blknr, (blkcnt * MMCSD_SECTOR_SIZE), &cur_card_data,
-                               (unsigned long *) dst);
-       return 1;
+       if(omap_mmc_read_sect(blknr, (blkcnt * MMCSD_SECTOR_SIZE), &cur_card_data,
+                               (unsigned long *) dst) != 1)
+               return 0;
+       return blkcnt;
 }
 
 int mmc_legacy_init(int verbose)