ALTERA_UART_STATUS_TRDY_MSK   61 arch/nios2/boot/compressed/console.c #define ALTERA_UART_STATUS_TRDY_MSK	(0x40)
ALTERA_UART_STATUS_TRDY_MSK   51 drivers/tty/serial/altera_uart.c #define ALTERA_UART_STATUS_TRDY_MSK	0x0040	/* TX ready */