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authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-10-15 17:47:04 +0400
committerKumar Gala <galak@kernel.crashing.org>2009-10-26 21:35:50 -0500
commit3e303f748cf57fb23e8ec95ab7eac0074be50e2b (patch)
tree0ce112511b29eecb0ea987195d0ca08cd195efd6 /common
parentda0e5f7ee828f246d85997486fff308837069453 (diff)
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fdt_support: Add multi-serial support for stdout fixup
Currently fdt_fixup_stdout() is using hard-coded CONFIG_CONS_INDEX constant. With multi-serial support, the CONS_INDEX may no longer represent actual console, so we should try to extract port number from the current stdio device name instead of always hard-coding the constant value. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Gerald Van Baren <vanbaren@cideas.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'common')
-rw-r--r--common/fdt_support.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c
index 9adaeb3..f89a3ee 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -22,6 +22,7 @@
*/
#include <common.h>
+#include <stdio_dev.h>
#include <linux/ctype.h>
#include <linux/types.h>
#include <asm/global_data.h>
@@ -90,6 +91,23 @@ int fdt_find_and_setprop(void *fdt, const char *node, const char *prop,
}
#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
+
+#ifdef CONFIG_SERIAL_MULTI
+static void fdt_fill_multisername(char *sername, size_t maxlen)
+{
+ const char *outname = stdio_devices[stdout]->name;
+
+ if (strcmp(outname, "serial") > 0)
+ strncpy(sername, outname, maxlen);
+
+ /* eserial? */
+ if (strcmp(outname + 1, "serial") > 0)
+ strncpy(sername, outname + 1, maxlen);
+}
+#else
+static inline void fdt_fill_multisername(char *sername, size_t maxlen) {}
+#endif /* CONFIG_SERIAL_MULTI */
+
static int fdt_fixup_stdout(void *fdt, int chosenoff)
{
int err = 0;
@@ -98,7 +116,9 @@ static int fdt_fixup_stdout(void *fdt, int chosenoff)
char sername[9] = { 0 };
const char *path;
- sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
+ fdt_fill_multisername(sername, sizeof(sername) - 1);
+ if (!sername[0])
+ sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
err = node = fdt_path_offset(fdt, "/aliases");
if (node >= 0) {