EXI_CR_READ_WRITE   28 arch/powerpc/boot/ugecon.c #define   EXI_CR_READ_WRITE     (2<<2)
EXI_CR_READ_WRITE   31 arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c #define   EXI_CR_READ_WRITE     (2<<2)