On 24/04/2013 12:59, Benoît Thébaudeau wrote:
Apart of that and not related to this patch, if we in future use SPL also for booting from SD, we can get a single way to boot from different storage. TI based SOCs already do this: same SPL, it checks from SD and NAND.
With this also comes the issue of BOOT_FROM in board/denx/m53evk/imximage.cfg. Strictly speaking, in order to be correct, it should be #if-ed depending on some config option: nand or sd.
Right, this is also correct. Anyway, BOOT_FROM is used to get the offset inside the storage, and only to be as much flexible as possible, each storage has defined its own offset. However, Freescale uses the same offset (0x400) for most storages (NAND, SD..) and another one for NOR or OneNAND (0x1000). Maybe it is easier to have only this two cases.
Best regards, Stefano