Hi, I am trying to port U-Boot to MX31PDK board, but I getting a problem related to lowlevel initialization to boot from NAND flash memory.
The problem is because cpu/arm1136/start.S waste so much space with IRQ/FIQ handling and stack initialization then lowlevel_init function is placed at 0x400 position. As the NAND controller from i.MX31 copy just 2KB to NANDFC internal buffer and lowlevel_init has about 0x6b0 bytes then the final position is after 0x800 (2KB) then the SDRAM initialization routine and NAND block copy to SDRAM doesn't work. Comparing with RedBoot I verified it place the lowlevel routines at 0x120 position then it fit in 2KB and all works fine. I need help to modify cpu/arm1136/start.S and place the lowlevel_init at 0x120 position instead 0x400. I am not ARM assembly expert then any help is welcome. Best Regards, Alan ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
