openwrt-xburst/target/linux/generic-2.6/patches-2.6.32/020-mips_multi_machine_support.patch

--- /dev/null
+++ b/arch/mips/include/asm/mips_machine.h
@@ -0,0 +1,47 @@
+/*
+ *  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;
+void mips_machine_set_name(char *name) __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 +1,74 @@
+/*
+ *  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_set_name(char *name)
+{
+	unsigned int len;
+	char *p;
+
+	if (name == NULL)
+		return;
+
+	len = strlen(name);
+	p = kmalloc(len + 1, GFP_KERNEL);
+	if (p) {
+		strncpy(p, name, len);
+		p[len] = '\0';
+		mips_machine_name = p;
+	} else {
+		printk(KERN_WARNING "MIPS: no memory for machine_name\n");
+	}
+}
+
+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;
+	}
+
+	mips_machine_set_name(mach->mach_name);
+	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
@@ -854,6 +854,9 @@ 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",