On Tue, 20 Apr 2010 10:36:08 +0200, Peter Vollmer <pvollmer-u-b...@innominate.com> wrote:
> I then inserted 8 pairs of lwzu/stwu inside the loop to see when exactly > the problem occurs: > > 1: lwzu r0,4(r8) > stwu r0,4(r7) > lwzu r0,4(r8) > stwu r0,4(r7) > ... > lwzu r0,4(r8) > stwu r0,4(r7) > bdnz 1b > > and the last breakpoint location that would get hit is after 6 times of > lwzu/stwu. Further testing showed that after 7 consecutive stwu r0,4(r7) instructions alone the problem already occurs, i.e. it seems to have nothing to do with the local bus controller, but with DDR RAM access, right ? -- Peter Vollmer Innominate Security Technologies AG Berlin / Germany _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
