[OpenBIOS] [PATCH 5/6] escc: Don't set aliases for legacy devices
Benjamin Herrenschmidt
benh at kernel.crashing.org
Tue Aug 2 07:35:26 CEST 2016
We currently overwrite the escc aliases with legacy ones.
This causes us to use a legacy one as a stdout path.
Linux doesn't parse the legacy ones very well causing problems detecting
the default serial console when using a mac model with a serial console.
Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
drivers/escc.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/escc.c b/drivers/escc.c
index 6515475..4ea8308 100644
--- a/drivers/escc.c
+++ b/drivers/escc.c
@@ -429,14 +429,15 @@ escc_add_channel(const char *path, const char *node, phys_addr_t addr,
/* add aliases */
- aliases = find_dev("/aliases");
-
- snprintf(buf, sizeof(buf), "%s/ch-%s", path, node);
- OLDWORLD(snprintf(tty, sizeof(tty), "tty%s", node));
- OLDWORLD(set_property(aliases, tty, buf, strlen(buf) + 1));
- snprintf(tty, sizeof(tty), "scc%s", node);
- set_property(aliases, tty, buf, strlen(buf) + 1);
-
+ if (!legacy) {
+ aliases = find_dev("/aliases");
+
+ snprintf(buf, sizeof(buf), "%s/ch-%s", path, node);
+ OLDWORLD(snprintf(tty, sizeof(tty), "tty%s", node));
+ OLDWORLD(set_property(aliases, tty, buf, strlen(buf) + 1));
+ snprintf(tty, sizeof(tty), "scc%s", node);
+ set_property(aliases, tty, buf, strlen(buf) + 1);
+ }
/* add properties */
dnode = find_dev(buf);
--
2.7.4
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