Hello Ralf, I made a patch for configuration problem for vr41xx. This patch corrects the problem which occurs when CONFIG_SERIAL is n. Please apply this patch to v2.4. Yoichi diff -urN -X dontdiff linux-orig/arch/mips/vr41xx/casio-e55/setup.c linux/arch/mips/vr41xx/casio-e55/setup.c --- linux-orig/arch/mips/vr41xx/casio-e55/setup.c 2004-02-06 11:21:47.000000000 +0900 +++ linux/arch/mips/vr41xx/casio-e55/setup.c 2004-02-09 12:11:51.000000000 +0900 @@ -50,5 +50,7 @@ vr41xx_cmu_init(); +#ifdef CONFIG_SERIAL vr41xx_siu_init(SIU_RS232C, 0); +#endif } diff -urN -X dontdiff linux-orig/arch/mips/vr41xx/ibm-workpad/setup.c linux/arch/mips/vr41xx/ibm-workpad/setup.c --- linux-orig/arch/mips/vr41xx/ibm-workpad/setup.c 2004-02-06 11:21:47.000000000 +0900 +++ linux/arch/mips/vr41xx/ibm-workpad/setup.c 2004-02-09 12:11:51.000000000 +0900 @@ -50,5 +50,7 @@ vr41xx_cmu_init(); +#ifdef CONFIG_SERIAL vr41xx_siu_init(SIU_RS232C, 0); +#endif } diff -urN -X dontdiff linux-orig/arch/mips/vr41xx/tanbac-tb0226/setup.c linux/arch/mips/vr41xx/tanbac-tb0226/setup.c --- linux-orig/arch/mips/vr41xx/tanbac-tb0226/setup.c 2004-02-09 10:43:38.000000000 +0900 +++ linux/arch/mips/vr41xx/tanbac-tb0226/setup.c 2004-02-09 12:12:36.000000000 +0900 @@ -91,7 +91,9 @@ vr41xx_cmu_init(); +#ifdef CONFIG_SERIAL vr41xx_siu_init(SIU_RS232C, 0); +#endif #ifdef CONFIG_PCI vr41xx_pciu_init(&pci_address_map); diff -urN -X dontdiff linux-orig/arch/mips/vr41xx/tanbac-tb0229/setup.c linux/arch/mips/vr41xx/tanbac-tb0229/setup.c --- linux-orig/arch/mips/vr41xx/tanbac-tb0229/setup.c 2004-02-09 10:43:38.000000000 +0900 +++ linux/arch/mips/vr41xx/tanbac-tb0229/setup.c 2004-02-09 12:11:51.000000000 +0900 @@ -104,8 +104,10 @@ vr41xx_cmu_init(); +#ifdef CONFIG_SERIAL vr41xx_siu_init(SIU_RS232C, 0); vr41xx_dsiu_init(); +#endif #ifdef CONFIG_PCI vr41xx_pciu_init(&pci_address_map); diff -urN -X dontdiff linux-orig/arch/mips/vr41xx/victor-mpc30x/setup.c linux/arch/mips/vr41xx/victor-mpc30x/setup.c --- linux-orig/arch/mips/vr41xx/victor-mpc30x/setup.c 2004-02-09 10:43:38.000000000 +0900 +++ linux/arch/mips/vr41xx/victor-mpc30x/setup.c 2004-02-09 12:16:23.000000000 +0900 @@ -96,7 +96,9 @@ vr41xx_cmu_init(); +#ifdef CONFIG_SERIAL vr41xx_siu_init(SIU_RS232C, 0); +#endif #ifdef CONFIG_PCI vr41xx_pciu_init(&pci_address_map); diff -urN -X dontdiff linux-orig/arch/mips/vr41xx/zao-capcella/setup.c linux/arch/mips/vr41xx/zao-capcella/setup.c --- linux-orig/arch/mips/vr41xx/zao-capcella/setup.c 2004-02-09 10:43:38.000000000 +0900 +++ linux/arch/mips/vr41xx/zao-capcella/setup.c 2004-02-09 12:17:10.000000000 +0900 @@ -96,8 +96,10 @@ vr41xx_cmu_init(); +#ifdef CONFIG_SERIAL vr41xx_siu_init(SIU_RS232C, 0); vr41xx_dsiu_init(); +#endif #ifdef CONFIG_PCI vr41xx_pciu_init(&pci_address_map);