Re: AMCC 405ex memory size issue

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 [off-list ref] wrote:

any ideas?



konamo wrote:

quoted

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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