target/linux/generic-2.6/patches-2.6.31/020-mips_multi_machine_support.patch

   1 --- /dev/null
   2 +++ b/include/asm-mips/mips_machine.h
   3 @@ -0,0 +1,46 @@
   4 +/*
   5 + *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
   6 + *
   7 + *  This program is free software; you can redistribute it and/or modify it
   8 + *  under the terms of the GNU General Public License version 2 as published
   9 + *  by the Free Software Foundation.
  10 + *
  11 + */
  12 +
  13 +#ifndef __ASM_MIPS_MACHINE_H
  14 +#define __ASM_MIPS_MACHINE_H
  15 +
  16 +#include <linux/init.h>
  17 +#include <linux/list.h>
  18 +
  19 +struct mips_machine {
  20 +       unsigned long           mach_type;
  21 +       void                    (*mach_setup)(void);
  22 +       char                    *mach_name;
  23 +       struct list_head        list;
  24 +};
  25 +
  26 +void mips_machine_register(struct mips_machine *) __init;
  27 +void mips_machine_setup(unsigned long machtype) __init;
  28 +
  29 +extern char *mips_machine_name;
  30 +
  31 +#define MIPS_MACHINE(_type, _name, _setup)                     \
  32 +static char machine_name_##_type[] __initdata = _name;         \
  33 +static struct mips_machine machine_##_type __initdata =                \
  34 +{                                                              \
  35 +       .mach_type      = _type,                                \
  36 +       .mach_name      = machine_name_##_type,                 \
  37 +       .mach_setup     = _setup,                               \
  38 +};                                                             \
  39 +                                                               \
  40 +static int __init register_machine_##_type(void)               \
  41 +{                                                              \
  42 +       mips_machine_register(&machine_##_type);                \
  43 +       return 0;                                               \
  44 +}                                                              \
  45 +                                                               \
  46 +pure_initcall(register_machine_##_type)
  47 +
  48 +#endif /* __ASM_MIPS_MACHINE_H */
  49 +
  50 --- /dev/null
  51 +++ b/arch/mips/kernel/mips_machine.c
  52 @@ -0,0 +1,70 @@
  53 +/*
  54 + *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
  55 + *
  56 + *  This program is free software; you can redistribute it and/or modify it
  57 + *  under the terms of the GNU General Public License version 2 as published
  58 + *  by the Free Software Foundation.
  59 + *
  60 + */
  61 +#include <linux/mm.h>
  62 +
  63 +#include <asm/mips_machine.h>
  64 +#include <asm/bootinfo.h>
  65 +
  66 +static struct list_head mips_machines __initdata =
  67 +               LIST_HEAD_INIT(mips_machines);
  68 +
  69 +char *mips_machine_name = "Unknown";
  70 +
  71 +static struct mips_machine * __init mips_machine_find(unsigned long machtype)
  72 +{
  73 +       struct list_head *this;
  74 +
  75 +       list_for_each(this, &mips_machines) {
  76 +               struct mips_machine *mach;
  77 +
  78 +               mach = list_entry(this, struct mips_machine, list);
  79 +               if (mach->mach_type == machtype)
  80 +                       return mach;
  81 +       }
  82 +
  83 +       return NULL;
  84 +}
  85 +
  86 +void __init mips_machine_register(struct mips_machine *mach)
  87 +{
  88 +       list_add_tail(&mach->list, &mips_machines);
  89 +}
  90 +
  91 +void __init mips_machine_setup(unsigned long machtype)
  92 +{
  93 +       struct mips_machine *mach;
  94 +
  95 +       mach = mips_machine_find(machtype);
  96 +       if (!mach) {
  97 +               printk(KERN_ALERT "MIPS: no machine registered for "
  98 +                       "machtype %lu\n", machtype);
  99 +               return;
 100 +       }
 101 +
 102 +       if (mach->mach_name) {
 103 +               char *name;
 104 +               unsigned int len;
 105 +
 106 +               len = strlen(mach->mach_name);
 107 +               name = kmalloc(len + 1, GFP_KERNEL);
 108 +               if (name) {
 109 +                       strncpy(name, mach->mach_name,len);
 110 +                       name[len] = '\0';
 111 +                       mips_machine_name = name;
 112 +               } else {
 113 +                       printk(KERN_WARNING "MIPS: no memory for machine_name\n");
 114 +               }
 115 +       }
 116 +
 117 +       printk(KERN_INFO "MIPS: machine is %s\n", mips_machine_name);
 118 +
 119 +       if (mach->mach_setup)
 120 +               mach->mach_setup();
 121 +}
 122 +
 123 --- a/arch/mips/kernel/Makefile
 124 +++ b/arch/mips/kernel/Makefile
 125 @@ -85,6 +85,7 @@ obj-$(CONFIG_GPIO_TXX9)               += gpio_txx9.o
 126
 127  obj-$(CONFIG_KEXEC)            += machine_kexec.o relocate_kernel.o
 128  obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
 129 +obj-$(CONFIG_MIPS_MACHINE)     += mips_machine.o
 130
 131  CFLAGS_cpu-bugs64.o    = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
 132
 133 --- a/arch/mips/Kconfig
 134 +++ b/arch/mips/Kconfig
 135 @@ -837,6 +837,9 @@ config MIPS_DISABLE_OBSOLETE_IDE
 136  config SYNC_R4K
 137         bool
 138
 139 +config MIPS_MACHINE
 140 +       def_bool n
 141 +
 142  config NO_IOPORT
 143         def_bool n
 144
 145 --- a/arch/mips/kernel/proc.c
 146 +++ b/arch/mips/kernel/proc.c
 147 @@ -12,6 +12,7 @@
 148  #include <asm/cpu-features.h>
 149  #include <asm/mipsregs.h>
 150  #include <asm/processor.h>
 151 +#include <asm/mips_machine.h>
 152
 153  unsigned int vced_count, vcei_count;
 154
 155 @@ -31,8 +32,12 @@ static int show_cpuinfo(struct seq_file
 156         /*
 157          * For the first processor also print the system type
 158          */
 159 -       if (n == 0)
 160 +       if (n == 0) {
 161                 seq_printf(m, "system type\t\t: %s\n", get_system_type());
 162 +#ifdef CONFIG_MIPS_MACHINE
 163 +               seq_printf(m, "machine\t\t\t: %s\n", mips_machine_name);
 164 +#endif
 165 +       }
 166
 167         seq_printf(m, "processor\t\t: %ld\n", n);
 168         sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",