REG_FDCFG_TXFIFOSIZE_SHIFT 56 drivers/tty/mips_ejtag_fdc.c #define REG_FDCFG_TXFIFOSIZE (0xff << REG_FDCFG_TXFIFOSIZE_SHIFT) REG_FDCFG_TXFIFOSIZE_SHIFT 910 drivers/tty/mips_ejtag_fdc.c tx_fifo = (cfg & REG_FDCFG_TXFIFOSIZE) >> REG_FDCFG_TXFIFOSIZE_SHIFT;