[PATCH -queue 1/2] [loongson] Cleanup the machtype support

[Wu Zhangjin <wuzhangjin@xxxxxxxxx>]

We need to initialize mips_machtype as early as we can, So, we can
choose corresponding code for different machines via it.

This patch moves the initialization of mips_machtype to prom_init().

Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
---
 arch/mips/include/asm/mach-loongson/loongson.h |    1 +
 arch/mips/loongson/common/cmdline.c            |    4 +++-
 arch/mips/loongson/common/machtype.c           |   17 ++++++++++-------
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index e6869aa..efb2344 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -29,6 +29,7 @@ extern unsigned long memsize, highmemsize;
 /* loongson-specific command line, env and memory initialization */
 extern void __init prom_init_memory(void);
 extern void __init prom_init_cmdline(void);
+extern void __init prom_init_machtype(void);
 extern void __init prom_init_env(void);
 
 /* irq operation functions */
diff --git a/arch/mips/loongson/common/cmdline.c b/arch/mips/loongson/common/cmdline.c
index 75f1b24..7ad47f2 100644
--- a/arch/mips/loongson/common/cmdline.c
+++ b/arch/mips/loongson/common/cmdline.c
@@ -9,7 +9,7 @@
  * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
  * Author: Fuxin Zhang, zhangfx@xxxxxxxxxx
  *
- * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2009 Lemote Inc.
  * Author: Wu Zhangjin, wuzj@xxxxxxxxxx
  *
  * This program is free software; you can redistribute  it and/or modify it
@@ -49,4 +49,6 @@ void __init prom_init_cmdline(void)
 		strcat(arcs_cmdline, " console=ttyS0,115200");
 	if ((strstr(arcs_cmdline, "root=")) == NULL)
 		strcat(arcs_cmdline, " root=/dev/hda1");
+
+	prom_init_machtype();
 }
diff --git a/arch/mips/loongson/common/machtype.c b/arch/mips/loongson/common/machtype.c
index 7b34824..87b502f 100644
--- a/arch/mips/loongson/common/machtype.c
+++ b/arch/mips/loongson/common/machtype.c
@@ -27,24 +27,27 @@ static const char *system_types[] = {
 
 const char *get_system_type(void)
 {
-	if (mips_machtype == MACH_UNKNOWN)
-		mips_machtype = LOONGSON_MACHTYPE;
-
 	return system_types[mips_machtype];
 }
 
-static __init int machtype_setup(char *str)
+void __init prom_init_machtype(void)
 {
+	char *str, *p;
 	int machtype = MACH_LEMOTE_FL2E;
 
+	mips_machtype = LOONGSON_MACHTYPE;
+
+	str = strstr(arcs_cmdline, "machtype=");
 	if (!str)
-		return -EINVAL;
+		return;
+	str += strlen("machtype=");
+	p = strstr(str, " ");
+	if (p)
+		*p++ = '\0';
 
 	for (; system_types[machtype]; machtype++)
 		if (strstr(system_types[machtype], str)) {
 			mips_machtype = machtype;
 			break;
 		}
-	return 0;
 }
-__setup("machtype=", machtype_setup);
-- 
1.6.2.1