Hello Arvid, >>> >> >> you don't need change start.s to boot from NOR. >> If shold set the #define CONFIG_SYS_TEXT_BASE 0x00000000 > > But that's just the thing, I *do* need this change for the board to boot. > CONFIG_SYS_TEXT_BASE is 0x10000000 (this is the base address for the flash > memory).
YES and NO: The nor is physical mapped to 0x1000000 that's right. But during boot from nor the Memory is also mapped to address 0x0. U-Boot is relocate to ram after ram init. The calculations of the reclocation process are based on "delta between PC and CONFIG_SYS_TEXT_BASE". > > Without my patch above, I only get this: > > ---------- > U-Boot 2012.10 (Oct 09 2013 - 02:28:44) > > DRAM: 64 MiB > ---------- > So at this position u-boot try to jump to a wrong address or code in ram. > I thought this was a known problem with at91rm9200 booting from NOR flash? > There's at least one other board that I know of with the same problem (the > Artila Matrix-500). > > >> Please see the configuration for eb_cpux9k2 board. This board does boot >> from NOR with u-boot 2012.10. > > Hmm, you are right. This config does boot my card (after I modify it to suit, > of course). Besides the different CONFIG_SYS_TEXT_BASE, I think the main > differences to the at91rm9200ek config that I based my earlier config on are > these things: > > #define CONFIG_SYS_BOOT_SIZE 0x00 /* 0 KBytes */ > #define CONFIG_SYS_U_BOOT_BASE PHYS_FLASH_1 > #define CONFIG_SYS_U_BOOT_SIZE 0x60000 /* 384 KBytes */ > > None of these are declared in the at91rm9200ek config. This are old items, which needs a clean up. > Regards Jens _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
