Wolfgang Denk wd@denx.de schreibt:
in message 3F659CD2.1040102@gmx.de you wrote:
Now, I've a new problem: When U-Boot starts I can see following
outsputs
through "cu", before the system stops due to a data abort.
...
U-Boot code: A1FE0000 -> A1FF5728 BSS: -> A1FF6BD4 DRAM Configuration: Bank #0: a0000000 32 MB Flash: 32 MB data abort undefined instruction
There is a 99.99% likelyhood of SDRAM error.
Well, 0.01% > 0% - the PXA implementation is broken ;-)
It looks a lot like the PXA problem that bit me last week; _armboot_real_end is never initialized, so U-Boot crashes when start_armboot() calls mem_malloc_init(_armboot_real_end)!
If I understand right, this exception occurs due to access to the contents of the created list. For example at the line(lists.c:
Most probably it occurs because you are reading garbage from RAM.
...or because ListCreate() can't allocate a (writable) block of RAM.
As a workaround, add this snippet
/* * Following code is just bug workaround, remove it if not neccessary */
/* cpu/xscale/cpu.c does not set armboot_real_end that is used for malloc pool.*/ if ( _armboot_real_end == 0xbadc0de ) _armboot_real_end = TEXT_BASE - CFG_MALLOC_LEN;
to board_init(). If the problem persists, then Wolfgang is right about RAM HW problems...
I'll submit a patch to fix this once and for all RSN...
Cheers Anders