--- x/hw/xfree86/os-support/linux/lnx_video.c.ori	2007-09-26 22:06:36.000000000 +0800
+++ x/hw/xfree86/os-support/linux/lnx_video.c	2007-09-26 22:07:19.000000000 +0800
@@ -544,6 +544,10 @@
 	int fd;
 	unsigned int ioBase_phys;
 #endif
+#if defined(__mips__)
+	int fd;
+	extern unsigned int IOPortBase;
+#endif
 
 	if (ExtendedEnabled)
 		return TRUE;
@@ -567,6 +571,21 @@
 #endif
 	}
 	close(fd);
+#elif defined(__mips__)
+	fd = open("/dev/mem", O_RDWR);
+	IOPortBase = (volatile unsigned char *)mmap(0, 0x20000,
+			PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+			0x1fd00000);
+	if (IOPortBase == MAP_FAILED) {
+		xf86Msg(X_WARNING,
+				"xf86EnableIOPorts: Failed to map iobase (%s)\n",
+				strerror(errno));
+		return FALSE;
+	}
+	close(fd);
+	xf86Msg(X_WARNING,
+	       "xf86EnableIOPorts: map iobase (%x)\n",
+	        IOPortBase);
 #elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__s390__)
         if (ioperm(0, 1024, 1) || iopl(3)) {
                 if (errno == ENODEV)