All, > >> Having a look at include/asm/global_data.h gives some 40 ulongs for my >> MPC8377 system. >> Current CONFIG_SYS_GBL_DATA_SIZE= 0x100 which should be enough. >> > Indeed. I was asking because I just discovered that most of the > PowerPC boards are actually broken in this respect - 89 % of them, > 170 out of 191 :-( > > >> The system is still dead after removing the 4 nops after _start. >>
actually I'm facing another issue and don't now whether this might be related to this thread or not. Just before relocation in arch/powerpc/lib/board.c the CPU gets a "check stop" followed by reset during "memset()" in line 493. [snip] DRAM: 256 MiB Top of RAM usable for U-Boot at: 10000000 Reserving 341k for U-Boot at: 0ffaa000 Reserving 512k for malloc() at: 0ff29f80 - reset - U-Boot 2010.09-00488-g5edbadb-dirty (Oct 26 2010 - 14:16:00) MPC83XX Reset Status: Check Stop, External/Internal Soft, External/Internal Hard I know that DDR might not be 100% stable but it is basically set up properly. Removing the memset yields the next debug messages before resetting again while setting up SP. Is the DDR required to work 100% for a simple write operation or might there be another problem ? 256MiB DDR is mapped by single BAT and there should be no overlapping BATs either. Any ideas ? -- Regards, Andre MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler Registergericht: Amtsgericht Stuttgart, HRB 271090 Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
