au1550_spi.c Au1550 PSC的SPI控制器驱动程序,可用于AU1200，AU1210，AU1250 但不能用于AU1000，AU1100和AU1500（不完整的SPI控制器）-au1550_spi.c- au1550 psc spi controller driver, may work also with au1200, au1210, au1250,but will not work on au1000, au1100 and au1500 (no full spi