DUART_CHANREG_SPACING  267 arch/mips/include/asm/sibyte/sb1250_regs.h #define DUART_CHANREG_SPACING	    0x100
DUART_CHANREG_SPACING   57 drivers/tty/serial/sb1250-duart.c #define DUART_CHANREG_SPACING	BCM1480_DUART_CHANREG_SPACING