wuzhangjin@xxxxxxxxx writes: Hi, [...] > diff --git a/arch/mips/include/asm/mach-loongson/machine.h b/arch/mips/include/asm/mach-loongson/machine.h > new file mode 100644 > index 0000000..5f2cd3a > --- /dev/null > +++ b/arch/mips/include/asm/mach-loongson/machine.h > @@ -0,0 +1,27 @@ > +/* > + * board-specific header file > + * > + * Copyright (c) 2009 Wu Zhangjin <wuzj@xxxxxxxxxx> > + * > + * This program is free software; you can redistribute it > + * and/or modify it under the terms of the GNU General > + * Public License as published by the Free Software > + * Foundation; either version 2 of the License, or (at your > + * option) any later version. > + */ > + > +#ifndef __MACHINE_H > +#define __MACHINE_H > + > +#define MACH_NAME "lemote-fuloong(2e)" > + > +#define LOONGSON_UART_BASE 0x1fd003f8 Why not using LOONGSON_PCIIO_BASE+0x3f8 ? Arnaud