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authorFelix Radensky <felix@embedded-sol.com>2009-08-12 08:57:39 +0300
committerKumar Gala <galak@kernel.crashing.org>2009-12-10 21:11:08 -0600
commitc1a676dfa2fa25fb9ec77c92ebe3ff580648b6ac (patch)
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powerpc/85xx: Workaround MPC8572/MPC8536 GPIO 1 errata.
On MPC8572 and MPC8536 the status of GPIO pins configured as output cannot be determined by reading GPDAT register. Workaround by reading the status of input pins from GPDAT and the status of output pins from a shadow register. Signed-off-by: Felix Radensky <felix@embedded-sol.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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