http://www.linux.or.jp/JF/JFdocs/kernel-docs-2.6/arm/SA1100/serial_UART.html
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I