[kernel] make mips_machine stuff available for other MIPS targets

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13492 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 133 insertions, 0 deletions

diff --git a/target/linux/generic-2.6/patches-2.6.27/020-mips_multi_machine_support.patch b/target/linux/generic-2.6/patches-2.6.27/020-mips_multi_machine_support.patch
new file mode 100644
index 0000000000..59406c382c
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.27/020-mips_multi_machine_support.patch
@@ -0,0 +1,133 @@
+--- /dev/null
++++ b/include/asm-mips/mips_machine.h
+@@ -0,0 +1,47 @@
++/*
++ *  Copyright (C) 2008 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>
++
++#define MIPS_MACHINE_NAME_LEN	64
++
++struct mips_machine {
++	unsigned long		mach_type;
++	void			(*mach_setup)(void);
++	unsigned char		mach_name[MIPS_MACHINE_NAME_LEN];
++	struct list_head	list;
++};
++
++void mips_machine_register(struct mips_machine *) __init;
++void mips_machine_setup(unsigned long machtype) __init;
++
++extern unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN];
++
++#define MIPS_MACHINE(_type, _name, _setup) 			\
++static struct mips_machine machine_##_type __initdata =		\
++{								\
++	.mach_type	= _type,				\
++	.mach_name	= _name,				\
++	.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 +1,58 @@
++/*
++ *  Copyright (C) 2008 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 <asm/mips_machine.h>
++#include <asm/bootinfo.h>
++
++static struct list_head mips_machines __initdata =
++		LIST_HEAD_INIT(mips_machines);
++
++unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN] = "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[0])
++		strncpy(mips_machine_name, mach->mach_name,
++			MIPS_MACHINE_NAME_LEN);
++
++	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
+@@ -83,6 +83,7 @@ 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
+@@ -768,6 +768,9 @@ config MIPS_DISABLE_OBSOLETE_IDE
+ config SYNC_R4K
+ 	bool
+ 
++config MIPS_MACHINE
++	def_bool n
++
+ config NO_IOPORT
+ 	def_bool n
+