add preliminary 2.6.32 support

[openwrt/openwrt.git] / target / linux / generic-2.6 / patches-2.6.32 / 020-mips_multi_machine_support.patch

diff --git a/target/linux/generic-2.6/patches-2.6.32/020-mips_multi_machine_support.patch b/target/linux/generic-2.6/patches-2.6.32/020-mips_multi_machine_support.patch
new file mode 100644 (file)
index 0000000..1b29290
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.32/020-mips_multi_machine_support.patch
@@ -0,0 +1,168 @@
+--- /dev/null
++++ b/include/asm-mips/mips_machine.h
+@@ -0,0 +1,46 @@
++/*
++ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
++ *
++ *  This program is free software; you can redistribute it and/or modify it
++ *  under the terms of the GNU General Public License version 2 as published
++ *  by the Free Software Foundation.
++ *
++ */
++
++#ifndef __ASM_MIPS_MACHINE_H
++#define __ASM_MIPS_MACHINE_H
++
++#include <linux/init.h>
++#include <linux/list.h>
++
++struct mips_machine {
++      unsigned long           mach_type;
++      void                    (*mach_setup)(void);
++      char                    *mach_name;
++      struct list_head        list;
++};
++
++void mips_machine_register(struct mips_machine *) __init;
++void mips_machine_setup(unsigned long machtype) __init;
++
++extern char *mips_machine_name;
++
++#define MIPS_MACHINE(_type, _name, _setup)                    \
++static char machine_name_##_type[] __initdata = _name;                \
++static struct mips_machine machine_##_type __initdata =               \
++{                                                             \
++      .mach_type      = _type,                                \
++      .mach_name      = machine_name_##_type,                 \
++      .mach_setup     = _setup,                               \
++};                                                            \
++                                                              \
++static int __init register_machine_##_type(void)              \
++{                                                             \
++      mips_machine_register(&machine_##_type);                \
++      return 0;                                               \
++}                                                             \
++                                                              \
++pure_initcall(register_machine_##_type)
++
++#endif /* __ASM_MIPS_MACHINE_H */
++
+--- /dev/null
++++ b/arch/mips/kernel/mips_machine.c
+@@ -0,0 +1,70 @@
++/*
++ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
++ *
++ *  This program is free software; you can redistribute it and/or modify it
++ *  under the terms of the GNU General Public License version 2 as published
++ *  by the Free Software Foundation.
++ *
++ */
++#include <linux/mm.h>
++
++#include <asm/mips_machine.h>
++#include <asm/bootinfo.h>
++
++static struct list_head mips_machines __initdata =
++              LIST_HEAD_INIT(mips_machines);
++
++char *mips_machine_name = "Unknown";
++
++static struct mips_machine * __init mips_machine_find(unsigned long machtype)
++{
++      struct list_head *this;
++
++      list_for_each(this, &mips_machines) {
++              struct mips_machine *mach;
++
++              mach = list_entry(this, struct mips_machine, list);
++              if (mach->mach_type == machtype)
++                      return mach;
++      }
++
++      return NULL;
++}
++
++void __init mips_machine_register(struct mips_machine *mach)
++{
++      list_add_tail(&mach->list, &mips_machines);
++}
++
++void __init mips_machine_setup(unsigned long machtype)
++{
++      struct mips_machine *mach;
++
++      mach = mips_machine_find(machtype);
++      if (!mach) {
++              printk(KERN_ALERT "MIPS: no machine registered for "
++                      "machtype %lu\n", machtype);
++              return;
++      }
++
++      if (mach->mach_name) {
++              char *name;
++              unsigned int len;
++
++              len = strlen(mach->mach_name);
++              name = kmalloc(len + 1, GFP_KERNEL);
++              if (name) {
++                      strncpy(name, mach->mach_name,len);
++                      name[len] = '\0';
++                      mips_machine_name = name;
++              } else {
++                      printk(KERN_WARNING "MIPS: no memory for machine_name\n");
++              }
++      }
++
++      printk(KERN_INFO "MIPS: machine is %s\n", mips_machine_name);
++
++      if (mach->mach_setup)
++              mach->mach_setup();
++}
++
+--- a/arch/mips/kernel/Makefile
++++ b/arch/mips/kernel/Makefile
+@@ -87,6 +87,7 @@ obj-$(CONFIG_GPIO_TXX9)              += gpio_txx9.o
+ 
+ obj-$(CONFIG_KEXEC)           += machine_kexec.o relocate_kernel.o
+ obj-$(CONFIG_EARLY_PRINTK)    += early_printk.o
++obj-$(CONFIG_MIPS_MACHINE)    += mips_machine.o
+ 
+ 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)
+ 
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -839,6 +839,9 @@ config MIPS_DISABLE_OBSOLETE_IDE
+ config SYNC_R4K
+       bool
+ 
++config MIPS_MACHINE
++      def_bool n
++
+ config NO_IOPORT
+       def_bool n
+ 
+--- a/arch/mips/kernel/proc.c
++++ b/arch/mips/kernel/proc.c
+@@ -12,6 +12,7 @@
+ #include <asm/cpu-features.h>
+ #include <asm/mipsregs.h>
+ #include <asm/processor.h>
++#include <asm/mips_machine.h>
+ 
+ unsigned int vced_count, vcei_count;
+ 
+@@ -31,8 +32,12 @@ static int show_cpuinfo(struct seq_file 
+       /*
+        * For the first processor also print the system type
+        */
+-      if (n == 0)
++      if (n == 0) {
+               seq_printf(m, "system type\t\t: %s\n", get_system_type());
++#ifdef CONFIG_MIPS_MACHINE
++              seq_printf(m, "machine\t\t\t: %s\n", mips_machine_name);
++#endif
++      }
+ 
+       seq_printf(m, "processor\t\t: %ld\n", n);
+       sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",