---

yaml --- r: 367238 b: refs/heads/master c: 0492f72 h: refs/heads/master v: v3
git-mirror · Mar 20, 2013 · 98cddf1 · 98cddf1
1 parent 72c6c5c
commit 98cddf1
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d9c1951f400942bbdb41e75a73d151e4a9d5469e
+refs/heads/master: 0492f72508184d451101564e235b0c32edf9acd3
diff --git a/trunk/arch/arm64/kernel/early_printk.c b/trunk/arch/arm64/kernel/early_printk.c
@@ -40,13 +40,25 @@ static void pl011_printch(char ch)
 		;
 }
 
+/*
+ * Semihosting-based debug console
+ */
+static void smh_printch(char ch)
+{
+	asm volatile("mov  x1, %0\n"
+		     "mov  x0, #3\n"
+		     "hlt  0xf000\n"
+		     : : "r" (&ch) : "x0", "x1", "memory");
+}
+
 struct earlycon_match {
 	const char *name;
 	void (*printch)(char ch);
 };
 
 static const struct earlycon_match earlycon_match[] __initconst = {
 	{ .name = "pl011", .printch = pl011_printch, },
+	{ .name = "smh", .printch = smh_printch, },
 	{}
 };