--- linux.old/arch/mips/au1000/mtx-1/board_setup.c	2005-08-10 15:22:14.014147000 +0200
+++ linux/arch/mips/au1000/mtx-1/board_setup.c	2005-08-10 15:26:34.346571264 +0200
@@ -78,8 +78,7 @@
 
 	// initialize sys_pinfunc:
 	// disable second ethernet port (SYS_PF_NI2)
-	// set U3/GPIO23 to GPIO23 (SYS_PF_U3)
-	au_writel( SYS_PF_NI2 | SYS_PF_U3, SYS_PINFUNC );
+	au_writel( SYS_PF_NI2, SYS_PINFUNC );
 
 	// initialize GPIO
 	au_writel( 0xFFFFFFFF, SYS_TRIOUTCLR );