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authorMike Frysinger <vapier.adi@gmail.com>2008-10-10 17:37:52 +0800
committerBryan Wu <cooloney@kernel.org>2008-10-10 17:37:52 +0800
commita88c71e4367aada2065c5e247477c891d2ca952f (patch)
treed0c12413d55ac060aea8117eb0598525d0f93139 /arch/blackfin
parent3c08f1d122627c9559fb03a11f52ea37f960b61e (diff)
Blackfin arch: emulate a TTY over the EMUDAT/JTAG interface
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/kernel/early_printk.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c
index 60f67f90fe35..1f4e3d2e0901 100644
--- a/arch/blackfin/kernel/early_printk.c
+++ b/arch/blackfin/kernel/early_printk.c
@@ -35,6 +35,9 @@
extern struct console *bfin_earlyserial_init(unsigned int port,
unsigned int cflag);
#endif
+#ifdef CONFIG_BFIN_JTAG_COMM
+extern struct console *bfin_jc_early_init(void);
+#endif
static struct console *early_console;
@@ -142,6 +145,15 @@ int __init setup_early_printk(char *buf)
early_console = earlyserial_init(buf);
}
#endif
+
+#ifdef CONFIG_BFIN_JTAG_COMM
+ /* Check for Blackfin JTAG */
+ if (!strncmp(buf, "jtag", 4)) {
+ buf += 4;
+ early_console = bfin_jc_early_init();
+ }
+#endif
+
#ifdef CONFIG_FB
/* TODO: add framebuffer console support */
#endif