PCH_UART_HAL_FIFO256  168 drivers/tty/serial/pch_uart.c #define PCH_UART_HAL_FIFO64		(PCH_UART_HAL_FIFO256)
PCH_UART_HAL_FIFO256 1294 drivers/tty/serial/pch_uart.c 		fifo_size = PCH_UART_HAL_FIFO256;