On Fri, Apr 03, 2009 at 02:44:03PM +0800, os user wrote: > I want to boot linux by a simplified bootloader. I use Atmel's ARM > chip (AT91SAM9RL64EK board). Now, I can boot linux with my small > program. The small program will parse the image generaed by "mkimage" > and copy the kernel bianry from NAND flash to SDRAM, construct the tag > list, disable I/D cache, disable interrupt and then jump to kernel > entry point. The system can startup, but when accessing rootfile > system(the rootfile system was also in the NAND chip), a lot of CRC > errors were found. See below, > mtd->read(0x1fb2c bytes from 0x1804d4) returned ECC error > mtd->read(0x1fa38 bytes from 0x3e05c8) returned ECC error > mtd->read(0x1f7dc bytes from 0x7c0824) returned ECC error > jffs2_scan_inode_node(): CRC failed on node at 0x007c37a4: Read > 0xd9b2bc33, calculated 0xda4805c1 > > and sometimes the sytem even crashed when R/W filesystem. > > But with the same linux kernel and rootfile system, if I use U-Boot to > boot linux, everything seems OK. > > Can anyone tell is there any trick that's related with linux NAND > driver in U-Boot? Or any suggestion to help me moving on?
Are you using the same software to program the NAND in each case? If not, perhaps they have a different OOB layout? -Scott _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
