On Fri, May 16, 2008 at 02:54:34PM +0800, jiale.Yin wrote: > Our board is reference with the mpc8313erdb,and its design is to link CS0 > to the NAND FLASH, so I have to boot from NAND other than NOR.In > /board/mpc8313erdb I can find some files, such as nand_boot.c, nand.c and > nand_ecc.c,
I assume you're talking about the Freescale BSP, as those files are not in mainline u-boot. > which I think are related with booting from NAND.What I want > to know is if booting from NAND,is there any need to modify the start.s No, beyond what's already been changed in the BSP to support it. Make sure you use a NAND configuration when building u-boot. > and what is needed to ba added. What's the difference between NOR-BOOT and > NAND-BOOT. Thank you! NOR can be mapped in its entirety, while with NAND only the first 4KiB gets mapped, and that code has to fetch the rest of u-boot from NAND and copy it to RAM before continuing. -Scott ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
