target/linux/generic-2.6/patches-2.6.27/020-mips_multi_machine_support.patch

   1 --- /dev/null
   2 +++ b/include/asm-mips/mips_machine.h
   3 @@ -0,0 +1,47 @@
   4 +/*
   5 + *  Copyright (C) 2008 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 +#define MIPS_MACHINE_NAME_LEN  64
  20 +
  21 +struct mips_machine {
  22 +       unsigned long           mach_type;
  23 +       void                    (*mach_setup)(void);
  24 +       unsigned char           mach_name[MIPS_MACHINE_NAME_LEN];
  25 +       struct list_head        list;
  26 +};
  27 +
  28 +void mips_machine_register(struct mips_machine *) __init;
  29 +void mips_machine_setup(unsigned long machtype) __init;
  30 +
  31 +extern unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN];
  32 +
  33 +#define MIPS_MACHINE(_type, _name, _setup)                     \
  34 +static struct mips_machine machine_##_type __initdata =                \
  35 +{                                                              \
  36 +       .mach_type      = _type,                                \
  37 +       .mach_name      = _name,                                \
  38 +       .mach_setup     = _setup,                               \
  39 +};                                                             \
  40 +                                                               \
  41 +static int __init register_machine_##_type(void)               \
  42 +{                                                              \
  43 +       mips_machine_register(&machine_##_type);                \
  44 +       return 0;                                               \
  45 +}                                                              \
  46 +                                                               \
  47 +pure_initcall(register_machine_##_type)
  48 +
  49 +#endif /* __ASM_MIPS_MACHINE_H */
  50 +
  51 --- /dev/null
  52 +++ b/arch/mips/kernel/mips_machine.c
  53 @@ -0,0 +1,58 @@
  54 +/*
  55 + *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
  56 + *
  57 + *  This program is free software; you can redistribute it and/or modify it
  58 + *  under the terms of the GNU General Public License version 2 as published
  59 + *  by the Free Software Foundation.
  60 + *
  61 + */
  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 +unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN] = "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[0])
 103 +               strncpy(mips_machine_name, mach->mach_name,
 104 +                       MIPS_MACHINE_NAME_LEN);
 105 +
 106 +       printk(KERN_INFO "MIPS: machine is %s\n", mips_machine_name);
 107 +
 108 +       if (mach->mach_setup)
 109 +               mach->mach_setup();
 110 +}
 111 +
 112 --- a/arch/mips/kernel/Makefile
 113 +++ b/arch/mips/kernel/Makefile
 114 @@ -83,6 +83,7 @@ obj-$(CONFIG_GPIO_TXX9)               += gpio_txx9.o
 115
 116  obj-$(CONFIG_KEXEC)            += machine_kexec.o relocate_kernel.o
 117  obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
 118 +obj-$(CONFIG_MIPS_MACHINE)     += mips_machine.o
 119
 120  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)
 121
 122 --- a/arch/mips/Kconfig
 123 +++ b/arch/mips/Kconfig
 124 @@ -768,6 +768,9 @@ config MIPS_DISABLE_OBSOLETE_IDE
 125  config SYNC_R4K
 126         bool
 127
 128 +config MIPS_MACHINE
 129 +       def_bool n
 130 +
 131  config NO_IOPORT
 132         def_bool n
 133