Redo the workaround for at91rm9200 erratum #26 in a way that doesn't cause a lockup on some rm92 hardware.
Redo the workaround for at91rm9200 erratum #26 in a way that doesn't
cause a lockup on some rm92 hardware.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase