target/linux/ramips/patches-3.9/0100-MIPS-move-mips_-set-get-_machine_name-to-a-more-gene.patch

   1 From 67d6534cdc4f90e6998a79ac57d5318412f18486 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 100/164] 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 diff --git a/arch/mips/include/asm/mips_machine.h b/arch/mips/include/asm/mips_machine.h
  21 index 363bb35..9d00aeb 100644
  22 --- a/arch/mips/include/asm/mips_machine.h
  23 +++ b/arch/mips/include/asm/mips_machine.h
  24 @@ -42,13 +42,9 @@ extern long __mips_machines_end;
  25  #ifdef CONFIG_MIPS_MACHINE
  26  int  mips_machtype_setup(char *id) __init;
  27  void mips_machine_setup(void) __init;
  28 -void mips_set_machine_name(const char *name) __init;
  29 -char *mips_get_machine_name(void);
  30  #else
  31  static inline int mips_machtype_setup(char *id) { return 1; }
  32  static inline void mips_machine_setup(void) { }
  33 -static inline void mips_set_machine_name(const char *name) { }
  34 -static inline char *mips_get_machine_name(void) { return NULL; }
  35  #endif /* CONFIG_MIPS_MACHINE */
  36
  37  #endif /* __ASM_MIPS_MACHINE_H */
  38 diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
  39 index 8808bf5..1e7e096 100644
  40 --- a/arch/mips/include/asm/prom.h
  41 +++ b/arch/mips/include/asm/prom.h
  42 @@ -48,4 +48,7 @@ extern void __dt_setup_arch(struct boot_param_header *bph);
  43  static inline void device_tree_init(void) { }
  44  #endif /* CONFIG_OF */
  45
  46 +extern char *mips_get_machine_name(void);
  47 +extern void mips_set_machine_name(const char *name);
  48 +
  49  #endif /* __ASM_PROM_H */
  50 diff --git a/arch/mips/kernel/mips_machine.c b/arch/mips/kernel/mips_machine.c
  51 index 411a058..6dc5866 100644
  52 --- a/arch/mips/kernel/mips_machine.c
  53 +++ b/arch/mips/kernel/mips_machine.c
  54 @@ -13,7 +13,6 @@
  55  #include <asm/mips_machine.h>
  56
  57  static struct mips_machine *mips_machine __initdata;
  58 -static char *mips_machine_name = "Unknown";
  59
  60  #define for_each_machine(mach) \
  61         for ((mach) = (struct mips_machine *)&__mips_machines_start; \
  62 @@ -21,25 +20,6 @@ static char *mips_machine_name = "Unknown";
  63              (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
  64              (mach)++)
  65
  66 -__init void mips_set_machine_name(const char *name)
  67 -{
  68 -       char *p;
  69 -
  70 -       if (name == NULL)
  71 -               return;
  72 -
  73 -       p = kstrdup(name, GFP_KERNEL);
  74 -       if (!p)
  75 -               pr_err("MIPS: no memory for machine_name\n");
  76 -
  77 -       mips_machine_name = p;
  78 -}
  79 -
  80 -char *mips_get_machine_name(void)
  81 -{
  82 -       return mips_machine_name;
  83 -}
  84 -
  85  __init int mips_machtype_setup(char *id)
  86  {
  87         struct mips_machine *mach;
  88 @@ -79,7 +59,6 @@ __init void mips_machine_setup(void)
  89                 return;
  90
  91         mips_set_machine_name(mips_machine->mach_name);
  92 -       pr_info("MIPS: machine is %s\n", mips_machine_name);
  93
  94         if (mips_machine->mach_setup)
  95                 mips_machine->mach_setup();
  96 diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
  97 index 7a54f74..1dd137b 100644
  98 --- a/arch/mips/kernel/proc.c
  99 +++ b/arch/mips/kernel/proc.c
 100 @@ -12,7 +12,7 @@
 101  #include <asm/cpu-features.h>
 102  #include <asm/mipsregs.h>
 103  #include <asm/processor.h>
 104 -#include <asm/mips_machine.h>
 105 +#include <asm/prom.h>
 106
 107  unsigned int vced_count, vcei_count;
 108
 109 diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
 110 index 028f6f8..b68e53b 100644
 111 --- a/arch/mips/kernel/prom.c
 112 +++ b/arch/mips/kernel/prom.c
 113 @@ -23,6 +23,22 @@
 114  #include <asm/page.h>
 115  #include <asm/prom.h>
 116
 117 +static char mips_machine_name[64] = "Unknown";
 118 +
 119 +__init void mips_set_machine_name(const char *name)
 120 +{
 121 +       if (name == NULL)
 122 +               return;
 123 +
 124 +       strncpy(mips_machine_name, name, sizeof(mips_machine_name));
 125 +       pr_info("MIPS: machine is %s\n", mips_get_machine_name());
 126 +}
 127 +
 128 +char *mips_get_machine_name(void)
 129 +{
 130 +       return mips_machine_name;
 131 +}
 132 +
 133  int __init early_init_dt_scan_memory_arch(unsigned long node,
 134                                           const char *uname, int depth,
 135                                           void *data)
 136 @@ -50,6 +66,18 @@ void __init early_init_dt_setup_initrd_arch(unsigned long start,
 137  }
 138  #endif
 139
 140 +int __init early_init_dt_scan_model(unsigned long node,        const char *uname,
 141 +                                   int depth, void *data)
 142 +{
 143 +       if (!depth) {
 144 +               char *model = of_get_flat_dt_prop(node, "model", NULL);
 145 +
 146 +               if (model)
 147 +                       mips_set_machine_name(model);
 148 +       }
 149 +       return 0;
 150 +}
 151 +
 152  void __init early_init_devtree(void *params)
 153  {
 154         /* Setup flat device-tree pointer */
 155 @@ -65,6 +93,9 @@ void __init early_init_devtree(void *params)
 156         /* Scan memory nodes */
 157         of_scan_flat_dt(early_init_dt_scan_root, NULL);
 158         of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
 159 +
 160 +       /* try to load the mips machine name */
 161 +       of_scan_flat_dt(early_init_dt_scan_model, NULL);
 162  }
 163
 164  void __init __dt_setup_arch(struct boot_param_header *bph)
 165 --
 166 1.7.10.4
 167