diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/legacy_serial.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 61dd17449ddc..cf37f5ca4b71 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -136,6 +136,11 @@ static int __init add_legacy_soc_port(struct device_node *np, if (of_get_property(np, "clock-frequency", NULL) == NULL) return -1; + /* if reg-shift or offset, don't try to use it */ + if ((of_get_property(np, "reg-shift", NULL) != NULL) || + (of_get_property(np, "reg-offset", NULL) != NULL)) + return -1; + /* if rtas uses this device, don't try to use it as well */ if (of_get_property(np, "used-by-rtas", NULL) != NULL) return -1; |