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* powerpc/85xx: Add is_serdes_configured() support for P2020 SERDESKumar Gala2011-01-14-0/+73
Add the ability to determine if a given IP block connected on SERDES is configured. This is useful for things like PCIe and SRIO since they are only ever connected on SERDES. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>