1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
From dd4bb7e821d112bff981016fd4e7c014ca9425f9 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 11 Apr 2013 05:34:59 +0000
Subject: [PATCH 100/137] MIPS: move mips_{set,get}_machine_name() to a more
generic place
Previously this functionality was only available to users of the mips_machine
api. Moving the code to prom.c allows us to also add a OF wrapper.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5164/
---
arch/mips/include/asm/mips_machine.h | 4 ----
arch/mips/include/asm/prom.h | 3 +++
arch/mips/kernel/mips_machine.c | 21 ---------------------
arch/mips/kernel/proc.c | 2 +-
arch/mips/kernel/prom.c | 31 +++++++++++++++++++++++++++++++
5 files changed, 35 insertions(+), 26 deletions(-)
--- a/arch/mips/include/asm/mips_machine.h
+++ b/arch/mips/include/asm/mips_machine.h
@@ -42,13 +42,9 @@ extern long __mips_machines_end;
#ifdef CONFIG_MIPS_MACHINE
int mips_machtype_setup(char *id) __init;
void mips_machine_setup(void) __init;
-void mips_set_machine_name(const char *name) __init;
-char *mips_get_machine_name(void);
#else
static inline int mips_machtype_setup(char *id) { return 1; }
static inline void mips_machine_setup(void) { }
-static inline void mips_set_machine_name(const char *name) { }
-static inline char *mips_get_machine_name(void) { return NULL; }
#endif /* CONFIG_MIPS_MACHINE */
#endif /* __ASM_MIPS_MACHINE_H */
--- a/arch/mips/include/asm/prom.h
+++ b/arch/mips/include/asm/prom.h
@@ -48,4 +48,7 @@ extern void __dt_setup_arch(struct boot_
static inline void device_tree_init(void) { }
#endif /* CONFIG_OF */
+extern char *mips_get_machine_name(void);
+extern void mips_set_machine_name(const char *name);
+
#endif /* __ASM_PROM_H */
--- a/arch/mips/kernel/mips_machine.c
+++ b/arch/mips/kernel/mips_machine.c
@@ -13,7 +13,6 @@
#include <asm/mips_machine.h>
static struct mips_machine *mips_machine __initdata;
-static char *mips_machine_name = "Unknown";
#define for_each_machine(mach) \
for ((mach) = (struct mips_machine *)&__mips_machines_start; \
@@ -21,25 +20,6 @@ static char *mips_machine_name = "Unknow
(unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
(mach)++)
-__init void mips_set_machine_name(const char *name)
-{
- char *p;
-
- if (name == NULL)
- return;
-
- p = kstrdup(name, GFP_KERNEL);
- if (!p)
- pr_err("MIPS: no memory for machine_name\n");
-
- mips_machine_name = p;
-}
-
-char *mips_get_machine_name(void)
-{
- return mips_machine_name;
-}
-
__init int mips_machtype_setup(char *id)
{
struct mips_machine *mach;
@@ -79,7 +59,6 @@ __init void mips_machine_setup(void)
return;
mips_set_machine_name(mips_machine->mach_name);
- pr_info("MIPS: machine is %s\n", mips_machine_name);
if (mips_machine->mach_setup)
mips_machine->mach_setup();
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -12,7 +12,7 @@
#include <asm/cpu-features.h>
#include <asm/mipsregs.h>
#include <asm/processor.h>
-#include <asm/mips_machine.h>
+#include <asm/prom.h>
unsigned int vced_count, vcei_count;
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -23,6 +23,22 @@
#include <asm/page.h>
#include <asm/prom.h>
+static char mips_machine_name[64] = "Unknown";
+
+__init void mips_set_machine_name(const char *name)
+{
+ if (name == NULL)
+ return;
+
+ strncpy(mips_machine_name, name, sizeof(mips_machine_name));
+ pr_info("MIPS: machine is %s\n", mips_get_machine_name());
+}
+
+char *mips_get_machine_name(void)
+{
+ return mips_machine_name;
+}
+
int __init early_init_dt_scan_memory_arch(unsigned long node,
const char *uname, int depth,
void *data)
@@ -50,6 +66,18 @@ void __init early_init_dt_setup_initrd_a
}
#endif
+int __init early_init_dt_scan_model(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ if (!depth) {
+ char *model = of_get_flat_dt_prop(node, "model", NULL);
+
+ if (model)
+ mips_set_machine_name(model);
+ }
+ return 0;
+}
+
void __init early_init_devtree(void *params)
{
/* Setup flat device-tree pointer */
@@ -65,6 +93,9 @@ void __init early_init_devtree(void *par
/* Scan memory nodes */
of_scan_flat_dt(early_init_dt_scan_root, NULL);
of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
+
+ /* try to load the mips machine name */
+ of_scan_flat_dt(early_init_dt_scan_model, NULL);
}
void __init __dt_setup_arch(struct boot_param_header *bph)
|
