Hi Robert! I have 4-5 microsd cards (Kingston, SanDisk, Samsung), 4 and 8GB in size, tried two, same thing.
I also tried vfat partition and disabled support for ext2 AND ext4 completely in u-boot, and basically same thing happened. Then I tried to list/load files manually from vfat/ext4 partitions using u-boot command prompt. I can list vfat and ext4 partitions and load files from them into memory. However, once I load uImage file everything regarding mmc access and loading files breaks. I seems to me that loading one big file somehow corrupts something (hahah, very precise explanation). uImage is little over 4MB. I will send detailed messages from u-boot command prompt session regarding this when I get back to my workstation, since it looks like it might be some sort of a bug, or maybe just u-boot misconfiguration that didn't take into account loading large files? Thanks! Nidal. On Tue, Jan 7, 2014 at 7:58 AM, Robert Nelson <robertcnel...@gmail.com> wrote: > On Mon, Jan 6, 2014 at 8:56 AM, nidalpres <nidalp...@gmail.com> wrote: >> Hi all! >> >> I was following instructions from >> http://eewiki.net/display/linuxonarm/iMX233-OLinuXino in order to get >> mainline kernel to boot off of my olinuxino micro board. >> >> I have created two partitions on my SD card: >> Device Boot Start End Blocks Id System >> /dev/sde1 2048 67583 32768 53 OnTrack DM6 Aux3 >> /dev/sde2 67584 7829503 3880960 83 Linux >> >> and installed everything as per instructions. However on boot this is >> what I get on console: >> HTLLCLC >> >> U-Boot 2013.10-dirty (Jan 05 2014 - 19:38:28) >> >> CPU: Freescale i.MX23 rev1.4 at 454 MHz >> BOOT: SSP SD/MMC #0 >> DRAM: 64 MiB >> MMC: MXS MMC: 0 >> *** Warning - bad CRC, using default environment >> >> In: serial >> Out: serial >> Err: serial >> Net: Net Initialization Skipped >> No ethernet found. >> Hit any key to stop autoboot: 0 >> mmc0 is current device >> SD/MMC found on device 0 >> 221 bytes read in 149 ms (1000 Bytes/s) >> Importing environment from mmc (uEnv.txt)... >> Checking if uenvcmd is set ... >> Running default loadzimage ... >> MMC0: Data error with command 18 (status 0xf0302020)! >> ** ext4fs_devread read error - block >> => >> >> >> I couldn't find anywhere what "ext4fs_devread read error - block" >> means. Found message origin in ext4fs_devread() function in u-boot >> source after some time but I really can't get my head around on what >> it means just by reading code. I suspect it doesn't like block sizes >> or something, not sure. >> >> So I changed second partition to ext2 (instead of ext4) an changed env >> parameters to instruct uboot that it is ext2 partition, nothing >> changed. >> >> Then I changed source header file include/configs/mx23_olinuxino.h and >> removed #define CONFIG_CMD_EXT4 from it hoping it will remove ext4 >> support. I also changed hardcoded env parameters in same file from >> mmcrootfstype=ext4 to mmcrootfstype=ext2. >> Recompiled u-boot, dd it to sd card, rinse and repeat, got exactly the >> same response on console you see above. >> >> I give up for today after 3 hours of battling with it. >> >> I plan to make 3 partitions: amtrak, vfat (for kernel) and ext4 (for >> rootfs). But if ext4fs_devread persists to complain (and I apparently >> haven't removed it from code) I don't think it would work either. >> >> What is going on? >> Can anyone give me some pointers what to do next? > > Just for sanity sake, have you tried try a different (brand) microSD card? > > Regards, > > -- > Robert Nelson > http://www.rcn-ee.com/ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
