DUART_INCHNG_SPACING  218 arch/mips/include/asm/sibyte/bcm1480_regs.h #define DUART_INCHNG_SPACING	    0x10
DUART_INCHNG_SPACING  295 arch/mips/include/asm/sibyte/sb1250_regs.h #define DUART_INCHNG_SPACING	    0x10