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lpc: Clear sync no-response field prior to device probe
[ Upstream commit 7194e92 ] Artem Senichev reported[1] his P8 platform was failing to boot from a43e9a6 ("astbmc: Fail SFC init if SIO is unavailable") with the following error: [ 110.097168975,3] PLAT: Failed to open PNOR flash controller I reproduced this behaviour on a Palmetto; we need to ensure the state of the no-response error bit is clear before proceding with the presence test. The fix appears to resolve the failure to open the PNOR flash controller on Palmetto and doesn't change the expected behaviour on Witherspoon. [1] #197 Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Tested-by: Artem Senichev <a.senichev@yadro.com> Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
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