Have you modified the hardware? The default hardware specs says there is only 256MB of ram. Regardless, if you upped the ram amount, you might need to modify u-boot itself to turn on more address lines or you might consider looking at your memory management allocation (slab, slub, etc).

Hunter Cobbs

On May 25, 2009, at 1:15 AM, konamo <dai.mich...@gmail.com> wrote:


any ideas?



konamo wrote:

Hi all,
we are using AMCC 405ex kilauea eval board as a demo, not use any
pci/nand function,
the board configuration is below:
u-boot 2009.01,
linux-2.6.25-rc2,
1GB DDR2 memory(2Gbit * 4, 1 rank),
AMCC powerpc 405ex,
both 1G and 512MB memory works fine under u-boot, but linux boot fails in 1G memory, if we limit mem=512M, linux could boot over nfs. Could anyone
pls help us how to find the root cause? thanks


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