[2/2] cxl: Workaround XSL bug that does not clear the RA bit after a reset
mpe at ellerman.id.au
Mon Jul 11 20:19:23 AEST 2016
On Wed, 2016-29-06 at 18:51:26 UTC, Ian Munsie wrote:
> From: Ian Munsie <imunsie at au1.ibm.com>
> An issue was noted in our debug logs where the XSL would leave the RA
> bit asserted after an AFU reset operation, which would effectively
> prevent further AFU reset operations from working.
> Workaround the issue by clearing the RA bit with an MMIO write if it is
> still asserted after any AFU control operation.
> Signed-off-by: Ian Munsie <imunsie at au1.ibm.com>
> Reviewed-by: Frederic Barrat <fbarrat at linux.vnet.ibm.com>
Applied to powerpc next, thanks.
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