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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-28 13:49:15 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-28 16:30:53 +1000
commit025d7917a5ede982a5669c6735ef73a227b9827e (patch)
treeb921600f898523c63cefa79effdc4f917b1cf4ab /arch/powerpc/kernel/legacy_serial.c
parentf023bf0f91f1f1b926ec8f5cf0ee24be134bf024 (diff)
powerpc/powermac: Fixup default serial port device for pmac_zilog
This removes the non-working code in legacy_serial that tried to handle the powermac SCC ports, and instead add a (now working) function to the powermac platform code to find the default serial console if any. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/legacy_serial.c')
-rw-r--r--arch/powerpc/kernel/legacy_serial.c44
1 files changed, 17 insertions, 27 deletions
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 4d96e1db55ee..9ddfaef1a184 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -493,18 +493,18 @@ static int __init serial_dev_init(void)
device_initcall(serial_dev_init);
+#ifdef CONFIG_SERIAL_8250_CONSOLE
/*
* This is called very early, as part of console_init() (typically just after
* time_init()). This function is respondible for trying to find a good
* default console on serial ports. It tries to match the open firmware
- * default output with one of the available serial console drivers, either
- * one of the platform serial ports that have been probed earlier by
- * find_legacy_serial_ports() or some more platform specific ones.
+ * default output with one of the available serial console drivers that have
+ * been probed earlier by find_legacy_serial_ports()
*/
static int __init check_legacy_serial_console(void)
{
struct device_node *prom_stdout = NULL;
- int speed = 0, offset = 0;
+ int i, speed = 0, offset = 0;
const char *name;
const u32 *spd;
@@ -548,31 +548,20 @@ static int __init check_legacy_serial_console(void)
if (spd)
speed = *spd;
- if (0)
- ;
-#ifdef CONFIG_SERIAL_8250_CONSOLE
- else if (strcmp(name, "serial") == 0) {
- int i;
- /* Look for it in probed array */
- for (i = 0; i < legacy_serial_count; i++) {
- if (prom_stdout != legacy_serial_infos[i].np)
- continue;
- offset = i;
- speed = legacy_serial_infos[i].speed;
- break;
- }
- if (i >= legacy_serial_count)
- goto not_found;
+ if (strcmp(name, "serial") != 0)
+ goto not_found;
+
+ /* Look for it in probed array */
+ for (i = 0; i < legacy_serial_count; i++) {
+ if (prom_stdout != legacy_serial_infos[i].np)
+ continue;
+ offset = i;
+ speed = legacy_serial_infos[i].speed;
+ break;
}
-#endif /* CONFIG_SERIAL_8250_CONSOLE */
-#ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
- else if (strcmp(name, "ch-a") == 0)
- offset = 0;
- else if (strcmp(name, "ch-b") == 0)
- offset = 1;
-#endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
- else
+ if (i >= legacy_serial_count)
goto not_found;
+
of_node_put(prom_stdout);
DBG("Found serial console at ttyS%d\n", offset);
@@ -591,3 +580,4 @@ static int __init check_legacy_serial_console(void)
}
console_initcall(check_legacy_serial_console);
+#endif /* CONFIG_SERIAL_8250_CONSOLE */