On Friday 28 March 2008, Kumar Gala wrote:
This patch enables this config option on some PPC440EPx boards as a workaround for the CHIP 11 errata. Here the description from the AMCC documentation:
If you reduce the memory size this way does the 44x kernel have issues with the TLBs that are used to mapped pin kernel lowmem?
Not that I am aware of. I tested arch/ppc and arch/powerpc kernel version without problems.
I know on 85xx this would be a bad thing and rather than changing gd-> ram_size, i'd add a memreserve in the device tree that the kernel got passed.
This way I have no chance to "fix" arch/ppc kernels too. I know, arch/ppc is dead. :) But we need to support it a little while longer.
Best regards, Stefan
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