target/linux/ramips/patches-3.8/0100-MIPS-move-mips_-set-get-_machine_name-to-a-more-gene.patch

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