[Skiboot] [PATCH] Suppress XSCOM chiplet-offline errors on P9
stewart at linux.vnet.ibm.com
Tue Oct 31 14:35:46 AEDT 2017
Stewart Smith <stewart at linux.vnet.ibm.com> writes:
> Workaround on P9: PRD does operations it *knows* will fail with this
> error to work around a hardware issue where accesses via the PIB
> (FSI or OCC) work as expected, accesses via the ADU (what xscom goes
> through) do not. The chip logic will always return all FFs if there
> is any error on the scom.
> Suggested-by: Daniel M Crowell <dcrowell at us.ibm.com>
> Signed-off-by: Stewart Smith <stewart at linux.vnet.ibm.com>
> hw/xscom.c | 22 +++++++++++++++++++++-
> 1 file changed, 21 insertions(+), 1 deletion(-)
Merged to master as of 896cb12ce237ac8e43228297f313d93c6e83e88f
OPAL Architect, IBM.
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