arch/m32r/kernel/setup.c - linux - Git at Google

 /*
  *  linux/arch/m32r/kernel/setup.c
  *
  *  Setup routines for Renesas M32R
  *
  *  Copyright (c) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata,
  *                            Hitoshi Yamamoto
  */

 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/stddef.h>
 #include <linux/fs.h>
 #include <linux/sched/mm.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
 #include <linux/bootmem.h>
 #include <linux/console.h>
 #include <linux/initrd.h>
 #include <linux/major.h>
 #include <linux/root_dev.h>
 #include <linux/seq_file.h>
 #include <linux/timex.h>
 #include <linux/screen_info.h>
 #include <linux/cpu.h>
 #include <linux/nodemask.h>
 #include <linux/pfn.h>

 #include <asm/processor.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
 #include <asm/mmu_context.h>
 #include <asm/m32r.h>
 #include <asm/setup.h>
 #include <asm/sections.h>

 #ifdef CONFIG_MMU
 extern void init_mmu(void);
 #endif

 extern char _end[];

 /*
  * Machine setup..
  */
 struct cpuinfo_m32r boot_cpu_data;

 #ifdef CONFIG_BLK_DEV_RAM
 extern int rd_doload;	/* 1 = load ramdisk, 0 = don't load */
 extern int rd_prompt;	/* 1 = prompt for ramdisk, 0 = don't prompt */
 extern int rd_image_start;	/* starting block # of image */
 #endif

 #if defined(CONFIG_VGA_CONSOLE)
 struct screen_info screen_info = {
 	.orig_video_lines      = 25,
 	.orig_video_cols       = 80,
 	.orig_video_mode       = 0,
 	.orig_video_ega_bx     = 0,
 	.orig_video_isVGA      = 1,
 	.orig_video_points     = 8
 };
 #endif

 extern int root_mountflags;

 static char __initdata command_line[COMMAND_LINE_SIZE];

 static struct resource data_resource = {
 	.name   = "Kernel data",
 	.start  = 0,
 	.end    = 0,
 	.flags  = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };

 static struct resource code_resource = {
 	.name   = "Kernel code",
 	.start  = 0,
 	.end    = 0,
 	.flags  = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
 };

 unsigned long memory_start;
 EXPORT_SYMBOL(memory_start);

 unsigned long memory_end;
 EXPORT_SYMBOL(memory_end);

 void __init setup_arch(char **);
 int get_cpuinfo(char *);

 static __inline__ void parse_mem_cmdline(char ** cmdline_p)
 {
 	char c = ' ';
 	char *to = command_line;
 	char *from = COMMAND_LINE;
 	int len = 0;
 	int usermem = 0;

 	/* Save unparsed command line copy for /proc/cmdline */
 	memcpy(boot_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
 	boot_command_line[COMMAND_LINE_SIZE-1] = '\0';

 	memory_start = (unsigned long)CONFIG_MEMORY_START+PAGE_OFFSET;
 	memory_end = memory_start+(unsigned long)CONFIG_MEMORY_SIZE;

 	for ( ; ; ) {
 		if (c == ' ' && !memcmp(from, "mem=", 4)) {
 			if (to != command_line)
 				to--;

 			{
 				unsigned long mem_size;

 				usermem = 1;
 				mem_size = memparse(from+4, &from);
 				memory_end = memory_start + mem_size;
 			}
 		}
 		c = *(from++);
 		if (!c)
 			break;

 		if (COMMAND_LINE_SIZE <= ++len)
 			break;

 		*(to++) = c;
 	}
 	*to = '\0';
 	*cmdline_p = command_line;
 	if (usermem)
 		printk(KERN_INFO "user-defined physical RAM map:\n");
 }

 #ifndef CONFIG_DISCONTIGMEM
 static unsigned long __init setup_memory(void)
 {
 	unsigned long start_pfn, max_low_pfn, bootmap_size;

 	start_pfn = PFN_UP( __pa(_end) );
 	max_low_pfn = PFN_DOWN( __pa(memory_end) );

 	/*
 	 * Initialize the boot-time allocator (with low memory only):
 	 */
 	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
 		CONFIG_MEMORY_START>>PAGE_SHIFT, max_low_pfn);

 	/*
 	 * Register fully available low RAM pages with the bootmem allocator.
 	 */
 	{
 		unsigned long curr_pfn;
 		unsigned long last_pfn;
 		unsigned long pages;

 		/*
 		 * We are rounding up the start address of usable memory:
 		 */
 		curr_pfn = PFN_UP(__pa(memory_start));

 		/*
 		 * ... and at the end of the usable range downwards:
 		 */
 		last_pfn = PFN_DOWN(__pa(memory_end));

 		if (last_pfn > max_low_pfn)
 			last_pfn = max_low_pfn;

 		pages = last_pfn - curr_pfn;
 		free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages));
 	}

 	/*
 	 * Reserve the kernel text and
 	 * Reserve the bootmem bitmap. We do this in two steps (first step
 	 * was init_bootmem()), because this catches the (definitely buggy)
 	 * case of us accidentally initializing the bootmem allocator with
 	 * an invalid RAM area.
 	 */
 	reserve_bootmem(CONFIG_MEMORY_START + PAGE_SIZE,
 		(PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE - 1)
 		- CONFIG_MEMORY_START,
 		BOOTMEM_DEFAULT);

 	/*
 	 * reserve physical page 0 - it's a special BIOS page on many boxes,
 	 * enabling clean reboots, SMP operation, laptop functions.
 	 */
 	reserve_bootmem(CONFIG_MEMORY_START, PAGE_SIZE, BOOTMEM_DEFAULT);

 	/*
 	 * reserve memory hole
 	 */
 #ifdef CONFIG_MEMHOLE
 	reserve_bootmem(CONFIG_MEMHOLE_START, CONFIG_MEMHOLE_SIZE,
 			BOOTMEM_DEFAULT);
 #endif

 #ifdef CONFIG_BLK_DEV_INITRD
 	if (LOADER_TYPE && INITRD_START) {
 		if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
 			reserve_bootmem(INITRD_START, INITRD_SIZE,
 					BOOTMEM_DEFAULT);
 			initrd_start = INITRD_START + PAGE_OFFSET;
 			initrd_end = initrd_start + INITRD_SIZE;
 			printk("initrd:start[%08lx],size[%08lx]\n",
 				initrd_start, INITRD_SIZE);
 		} else {
 			printk("initrd extends beyond end of memory "
 				"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
 				INITRD_START + INITRD_SIZE,
 				max_low_pfn << PAGE_SHIFT);

 			initrd_start = 0;
 		}
 	}
 #endif

 	return max_low_pfn;
 }
 #else	/* CONFIG_DISCONTIGMEM */
 extern unsigned long setup_memory(void);
 #endif	/* CONFIG_DISCONTIGMEM */

 void __init setup_arch(char **cmdline_p)
 {
 	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);

 	boot_cpu_data.cpu_clock = M32R_CPUCLK;
 	boot_cpu_data.bus_clock = M32R_BUSCLK;
 	boot_cpu_data.timer_divide = M32R_TIMER_DIVIDE;

 #ifdef CONFIG_BLK_DEV_RAM
 	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
 	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
 	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
 #endif

 	if (!MOUNT_ROOT_RDONLY)
 		root_mountflags &= ~MS_RDONLY;

 #ifdef CONFIG_VT
 #if defined(CONFIG_VGA_CONSOLE)
 	conswitchp = &vga_con;
 #elif defined(CONFIG_DUMMY_CONSOLE)
 	conswitchp = &dummy_con;
 #endif
 #endif

 #ifdef CONFIG_DISCONTIGMEM
 	nodes_clear(node_online_map);
 	node_set_online(0);
 	node_set_online(1);
 #endif	/* CONFIG_DISCONTIGMEM */

 	init_mm.start_code = (unsigned long) _text;
 	init_mm.end_code = (unsigned long) _etext;
 	init_mm.end_data = (unsigned long) _edata;
 	init_mm.brk = (unsigned long) _end;

 	code_resource.start = virt_to_phys(_text);
 	code_resource.end = virt_to_phys(_etext)-1;
 	data_resource.start = virt_to_phys(_etext);
 	data_resource.end = virt_to_phys(_edata)-1;

 	parse_mem_cmdline(cmdline_p);

 	setup_memory();

 	paging_init();
 }

 static struct cpu cpu_devices[NR_CPUS];

 static int __init topology_init(void)
 {
 	int i;

 	for_each_present_cpu(i)
 		register_cpu(&cpu_devices[i], i);

 	return 0;
 }

 subsys_initcall(topology_init);

 #ifdef CONFIG_PROC_FS
 /*
  *	Get CPU information for use by the procfs.
  */
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
 	struct cpuinfo_m32r *c = v;
 	unsigned long cpu = c - cpu_data;

 #ifdef CONFIG_SMP
 	if (!cpu_online(cpu))
 		return 0;
 #endif	/* CONFIG_SMP */

 	seq_printf(m, "processor\t: %ld\n", cpu);

 #if defined(CONFIG_CHIP_VDEC2)
 	seq_printf(m, "cpu family\t: VDEC2\n"
 		"cache size\t: Unknown\n");
 #elif defined(CONFIG_CHIP_M32700)
 	seq_printf(m,"cpu family\t: M32700\n"
 		"cache size\t: I-8KB/D-8KB\n");
 #elif defined(CONFIG_CHIP_M32102)
 	seq_printf(m,"cpu family\t: M32102\n"
 		"cache size\t: I-8KB\n");
 #elif defined(CONFIG_CHIP_OPSP)
 	seq_printf(m,"cpu family\t: OPSP\n"
 		"cache size\t: I-8KB/D-8KB\n");
 #elif defined(CONFIG_CHIP_MP)
 	seq_printf(m, "cpu family\t: M32R-MP\n"
 		"cache size\t: I-xxKB/D-xxKB\n");
 #elif  defined(CONFIG_CHIP_M32104)
 	seq_printf(m,"cpu family\t: M32104\n"
 		"cache size\t: I-8KB/D-8KB\n");
 #else
 	seq_printf(m, "cpu family\t: Unknown\n");
 #endif
 	seq_printf(m, "bogomips\t: %lu.%02lu\n",
 		c->loops_per_jiffy/(500000/HZ),
 		(c->loops_per_jiffy/(5000/HZ)) % 100);
 #if defined(CONFIG_PLAT_MAPPI)
 	seq_printf(m, "Machine\t\t: Mappi Evaluation board\n");
 #elif defined(CONFIG_PLAT_MAPPI2)
 	seq_printf(m, "Machine\t\t: Mappi-II Evaluation board\n");
 #elif defined(CONFIG_PLAT_MAPPI3)
 	seq_printf(m, "Machine\t\t: Mappi-III Evaluation board\n");
 #elif defined(CONFIG_PLAT_M32700UT)
 	seq_printf(m, "Machine\t\t: M32700UT Evaluation board\n");
 #elif defined(CONFIG_PLAT_OPSPUT)
 	seq_printf(m, "Machine\t\t: OPSPUT Evaluation board\n");
 #elif defined(CONFIG_PLAT_USRV)
 	seq_printf(m, "Machine\t\t: uServer\n");
 #elif defined(CONFIG_PLAT_OAKS32R)
 	seq_printf(m, "Machine\t\t: OAKS32R\n");
 #elif  defined(CONFIG_PLAT_M32104UT)
 	seq_printf(m, "Machine\t\t: M3T-M32104UT uT Engine board\n");
 #else
 	seq_printf(m, "Machine\t\t: Unknown\n");
 #endif

 #define PRINT_CLOCK(name, value)				\
 	seq_printf(m, name " clock\t: %d.%02dMHz\n",		\
 		((value) / 1000000), ((value) % 1000000)/10000)

 	PRINT_CLOCK("CPU", (int)c->cpu_clock);
 	PRINT_CLOCK("Bus", (int)c->bus_clock);

 	seq_printf(m, "\n");

 	return 0;
 }

 static void *c_start(struct seq_file *m, loff_t *pos)
 {
 	return *pos < NR_CPUS ? cpu_data + *pos : NULL;
 }

 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 {
 	++*pos;
 	return c_start(m, pos);
 }

 static void c_stop(struct seq_file *m, void *v)
 {
 }

 const struct seq_operations cpuinfo_op = {
 	.start = c_start,
 	.next = c_next,
 	.stop = c_stop,
 	.show = show_cpuinfo,
 };
 #endif	/* CONFIG_PROC_FS */

 unsigned long cpu_initialized __initdata = 0;

 /*
  * cpu_init() initializes state that is per-CPU. Some data is already
  * initialized (naturally) in the bootstrap process.
  * We reload them nevertheless, this function acts as a
  * 'CPU state barrier', nothing should get across.
  */
 #if defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_XNUX2)	\
 	|| defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_M32102) \
 	|| defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
 void __init cpu_init (void)
 {
 	int cpu_id = smp_processor_id();

 	if (test_and_set_bit(cpu_id, &cpu_initialized)) {
 		printk(KERN_WARNING "CPU#%d already initialized!\n", cpu_id);
 		for ( ; ; )
 			local_irq_enable();
 	}
 	printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);

 	/* Set up and load the per-CPU TSS and LDT */
 	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	if (current->mm)
 		BUG();

 	/* Force FPU initialization */
 	current_thread_info()->status = 0;
 	clear_used_math();

 #ifdef CONFIG_MMU
 	/* Set up MMU */
 	init_mmu();
 #endif

 	/* Set up ICUIMASK */
 	outl(0x00070000, M32R_ICU_IMASK_PORTL);		/* imask=111 */
 }
 #endif	/* defined(CONFIG_CHIP_VDEC2) ... */
	/*
	* linux/arch/m32r/kernel/setup.c
	*
	* Setup routines for Renesas M32R
	*
	* Copyright (c) 2001, 2002 Hiroyuki Kondo, Hirokazu Takata,
	* Hitoshi Yamamoto
	*/

	#include <linux/init.h>
	#include <linux/kernel.h>
	#include <linux/stddef.h>
	#include <linux/fs.h>
	#include <linux/sched/mm.h>
	#include <linux/ioport.h>
	#include <linux/mm.h>
	#include <linux/bootmem.h>
	#include <linux/console.h>
	#include <linux/initrd.h>
	#include <linux/major.h>
	#include <linux/root_dev.h>
	#include <linux/seq_file.h>
	#include <linux/timex.h>
	#include <linux/screen_info.h>
	#include <linux/cpu.h>
	#include <linux/nodemask.h>
	#include <linux/pfn.h>

	#include <asm/processor.h>
	#include <asm/pgtable.h>
	#include <asm/io.h>
	#include <asm/mmu_context.h>
	#include <asm/m32r.h>
	#include <asm/setup.h>
	#include <asm/sections.h>

	#ifdef CONFIG_MMU
	extern void init_mmu(void);
	#endif

	extern char _end[];

	/*
	* Machine setup..
	*/
	struct cpuinfo_m32r boot_cpu_data;

	#ifdef CONFIG_BLK_DEV_RAM
	extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */
	extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */
	extern int rd_image_start; /* starting block # of image */
	#endif

	#if defined(CONFIG_VGA_CONSOLE)
	struct screen_info screen_info = {
	.orig_video_lines = 25,
	.orig_video_cols = 80,
	.orig_video_mode = 0,
	.orig_video_ega_bx = 0,
	.orig_video_isVGA = 1,
	.orig_video_points = 8
	};
	#endif

	extern int root_mountflags;

	static char __initdata command_line[COMMAND_LINE_SIZE];

	static struct resource data_resource = {
	.name = "Kernel data",
	.start = 0,
	.end = 0,
	.flags = IORESOURCE_BUSY \| IORESOURCE_SYSTEM_RAM
	};

	static struct resource code_resource = {
	.name = "Kernel code",
	.start = 0,
	.end = 0,
	.flags = IORESOURCE_BUSY \| IORESOURCE_SYSTEM_RAM
	};

	unsigned long memory_start;
	EXPORT_SYMBOL(memory_start);

	unsigned long memory_end;
	EXPORT_SYMBOL(memory_end);

	void __init setup_arch(char **);
	int get_cpuinfo(char *);

	static __inline__ void parse_mem_cmdline(char ** cmdline_p)
	{
	char c = ' ';
	char *to = command_line;
	char *from = COMMAND_LINE;
	int len = 0;
	int usermem = 0;

	/* Save unparsed command line copy for /proc/cmdline */
	memcpy(boot_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
	boot_command_line[COMMAND_LINE_SIZE-1] = '\0';

	memory_start = (unsigned long)CONFIG_MEMORY_START+PAGE_OFFSET;
	memory_end = memory_start+(unsigned long)CONFIG_MEMORY_SIZE;

	for ( ; ; ) {
	if (c == ' ' && !memcmp(from, "mem=", 4)) {
	if (to != command_line)
	to--;

	{
	unsigned long mem_size;

	usermem = 1;
	mem_size = memparse(from+4, &from);
	memory_end = memory_start + mem_size;
	}
	}
	c = *(from++);
	if (!c)
	break;

	if (COMMAND_LINE_SIZE <= ++len)
	break;

	*(to++) = c;
	}
	*to = '\0';
	*cmdline_p = command_line;
	if (usermem)
	printk(KERN_INFO "user-defined physical RAM map:\n");
	}

	#ifndef CONFIG_DISCONTIGMEM
	static unsigned long __init setup_memory(void)
	{
	unsigned long start_pfn, max_low_pfn, bootmap_size;

	start_pfn = PFN_UP( __pa(_end) );
	max_low_pfn = PFN_DOWN( __pa(memory_end) );

	/*
	* Initialize the boot-time allocator (with low memory only):
	*/
	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
	CONFIG_MEMORY_START>>PAGE_SHIFT, max_low_pfn);

	/*
	* Register fully available low RAM pages with the bootmem allocator.
	*/
	{
	unsigned long curr_pfn;
	unsigned long last_pfn;
	unsigned long pages;

	/*
	* We are rounding up the start address of usable memory:
	*/
	curr_pfn = PFN_UP(__pa(memory_start));

	/*
	* ... and at the end of the usable range downwards:
	*/
	last_pfn = PFN_DOWN(__pa(memory_end));

	if (last_pfn > max_low_pfn)
	last_pfn = max_low_pfn;

	pages = last_pfn - curr_pfn;
	free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages));
	}

	/*
	* Reserve the kernel text and
	* Reserve the bootmem bitmap. We do this in two steps (first step
	* was init_bootmem()), because this catches the (definitely buggy)
	* case of us accidentally initializing the bootmem allocator with
	* an invalid RAM area.
	*/
	reserve_bootmem(CONFIG_MEMORY_START + PAGE_SIZE,
	(PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE - 1)
	- CONFIG_MEMORY_START,
	BOOTMEM_DEFAULT);

	/*
	* reserve physical page 0 - it's a special BIOS page on many boxes,
	* enabling clean reboots, SMP operation, laptop functions.
	*/
	reserve_bootmem(CONFIG_MEMORY_START, PAGE_SIZE, BOOTMEM_DEFAULT);

	/*
	* reserve memory hole
	*/
	#ifdef CONFIG_MEMHOLE
	reserve_bootmem(CONFIG_MEMHOLE_START, CONFIG_MEMHOLE_SIZE,
	BOOTMEM_DEFAULT);
	#endif

	#ifdef CONFIG_BLK_DEV_INITRD
	if (LOADER_TYPE && INITRD_START) {
	if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
	reserve_bootmem(INITRD_START, INITRD_SIZE,
	BOOTMEM_DEFAULT);
	initrd_start = INITRD_START + PAGE_OFFSET;
	initrd_end = initrd_start + INITRD_SIZE;
	printk("initrd:start[%08lx],size[%08lx]\n",
	initrd_start, INITRD_SIZE);
	} else {
	printk("initrd extends beyond end of memory "
	"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
	INITRD_START + INITRD_SIZE,
	max_low_pfn << PAGE_SHIFT);

	initrd_start = 0;
	}
	}
	#endif

	return max_low_pfn;
	}
	#else /* CONFIG_DISCONTIGMEM */
	extern unsigned long setup_memory(void);
	#endif /* CONFIG_DISCONTIGMEM */

	void __init setup_arch(char **cmdline_p)
	{
	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);

	boot_cpu_data.cpu_clock = M32R_CPUCLK;
	boot_cpu_data.bus_clock = M32R_BUSCLK;
	boot_cpu_data.timer_divide = M32R_TIMER_DIVIDE;

	#ifdef CONFIG_BLK_DEV_RAM
	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
	#endif

	if (!MOUNT_ROOT_RDONLY)
	root_mountflags &= ~MS_RDONLY;

	#ifdef CONFIG_VT
	#if defined(CONFIG_VGA_CONSOLE)
	conswitchp = &vga_con;
	#elif defined(CONFIG_DUMMY_CONSOLE)
	conswitchp = &dummy_con;
	#endif
	#endif

	#ifdef CONFIG_DISCONTIGMEM
	nodes_clear(node_online_map);
	node_set_online(0);
	node_set_online(1);
	#endif /* CONFIG_DISCONTIGMEM */

	init_mm.start_code = (unsigned long) _text;
	init_mm.end_code = (unsigned long) _etext;
	init_mm.end_data = (unsigned long) _edata;
	init_mm.brk = (unsigned long) _end;

	code_resource.start = virt_to_phys(_text);
	code_resource.end = virt_to_phys(_etext)-1;
	data_resource.start = virt_to_phys(_etext);
	data_resource.end = virt_to_phys(_edata)-1;

	parse_mem_cmdline(cmdline_p);

	setup_memory();

	paging_init();
	}

	static struct cpu cpu_devices[NR_CPUS];

	static int __init topology_init(void)
	{
	int i;

	for_each_present_cpu(i)
	register_cpu(&cpu_devices[i], i);

	return 0;
	}

	subsys_initcall(topology_init);

	#ifdef CONFIG_PROC_FS
	/*
	* Get CPU information for use by the procfs.
	*/
	static int show_cpuinfo(struct seq_file m, void v)
	{
	struct cpuinfo_m32r *c = v;
	unsigned long cpu = c - cpu_data;

	#ifdef CONFIG_SMP
	if (!cpu_online(cpu))
	return 0;
	#endif /* CONFIG_SMP */

	seq_printf(m, "processor\t: %ld\n", cpu);

	#if defined(CONFIG_CHIP_VDEC2)
	seq_printf(m, "cpu family\t: VDEC2\n"
	"cache size\t: Unknown\n");
	#elif defined(CONFIG_CHIP_M32700)
	seq_printf(m,"cpu family\t: M32700\n"
	"cache size\t: I-8KB/D-8KB\n");
	#elif defined(CONFIG_CHIP_M32102)
	seq_printf(m,"cpu family\t: M32102\n"
	"cache size\t: I-8KB\n");
	#elif defined(CONFIG_CHIP_OPSP)
	seq_printf(m,"cpu family\t: OPSP\n"
	"cache size\t: I-8KB/D-8KB\n");
	#elif defined(CONFIG_CHIP_MP)
	seq_printf(m, "cpu family\t: M32R-MP\n"
	"cache size\t: I-xxKB/D-xxKB\n");
	#elif defined(CONFIG_CHIP_M32104)
	seq_printf(m,"cpu family\t: M32104\n"
	"cache size\t: I-8KB/D-8KB\n");
	#else
	seq_printf(m, "cpu family\t: Unknown\n");
	#endif
	seq_printf(m, "bogomips\t: %lu.%02lu\n",
	c->loops_per_jiffy/(500000/HZ),
	(c->loops_per_jiffy/(5000/HZ)) % 100);
	#if defined(CONFIG_PLAT_MAPPI)
	seq_printf(m, "Machine\t\t: Mappi Evaluation board\n");
	#elif defined(CONFIG_PLAT_MAPPI2)
	seq_printf(m, "Machine\t\t: Mappi-II Evaluation board\n");
	#elif defined(CONFIG_PLAT_MAPPI3)
	seq_printf(m, "Machine\t\t: Mappi-III Evaluation board\n");
	#elif defined(CONFIG_PLAT_M32700UT)
	seq_printf(m, "Machine\t\t: M32700UT Evaluation board\n");
	#elif defined(CONFIG_PLAT_OPSPUT)
	seq_printf(m, "Machine\t\t: OPSPUT Evaluation board\n");
	#elif defined(CONFIG_PLAT_USRV)
	seq_printf(m, "Machine\t\t: uServer\n");
	#elif defined(CONFIG_PLAT_OAKS32R)
	seq_printf(m, "Machine\t\t: OAKS32R\n");
	#elif defined(CONFIG_PLAT_M32104UT)
	seq_printf(m, "Machine\t\t: M3T-M32104UT uT Engine board\n");
	#else
	seq_printf(m, "Machine\t\t: Unknown\n");
	#endif

	#define PRINT_CLOCK(name, value) \
	seq_printf(m, name " clock\t: %d.%02dMHz\n", \
	((value) / 1000000), ((value) % 1000000)/10000)

	PRINT_CLOCK("CPU", (int)c->cpu_clock);
	PRINT_CLOCK("Bus", (int)c->bus_clock);

	seq_printf(m, "\n");

	return 0;
	}

	static void c_start(struct seq_file m, loff_t *pos)
	{
	return pos < NR_CPUS ? cpu_data + pos : NULL;
	}

	static void c_next(struct seq_file m, void v, loff_t pos)
	{
	++*pos;
	return c_start(m, pos);
	}

	static void c_stop(struct seq_file m, void v)
	{
	}

	const struct seq_operations cpuinfo_op = {
	.start = c_start,
	.next = c_next,
	.stop = c_stop,
	.show = show_cpuinfo,
	};
	#endif /* CONFIG_PROC_FS */

	unsigned long cpu_initialized __initdata = 0;

	/*
	* cpu_init() initializes state that is per-CPU. Some data is already
	* initialized (naturally) in the bootstrap process.
	* We reload them nevertheless, this function acts as a
	* 'CPU state barrier', nothing should get across.
	*/
	#if defined(CONFIG_CHIP_VDEC2) \|\| defined(CONFIG_CHIP_XNUX2) \
	\|\| defined(CONFIG_CHIP_M32700) \|\| defined(CONFIG_CHIP_M32102) \
	\|\| defined(CONFIG_CHIP_OPSP) \|\| defined(CONFIG_CHIP_M32104)
	void __init cpu_init (void)
	{
	int cpu_id = smp_processor_id();

	if (test_and_set_bit(cpu_id, &cpu_initialized)) {
	printk(KERN_WARNING "CPU#%d already initialized!\n", cpu_id);
	for ( ; ; )
	local_irq_enable();
	}
	printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);

	/* Set up and load the per-CPU TSS and LDT */
	mmgrab(&init_mm);
	current->active_mm = &init_mm;
	if (current->mm)
	BUG();

	/* Force FPU initialization */
	current_thread_info()->status = 0;
	clear_used_math();

	#ifdef CONFIG_MMU
	/* Set up MMU */
	init_mmu();
	#endif

	/* Set up ICUIMASK */
	outl(0x00070000, M32R_ICU_IMASK_PORTL); /* imask=111 */
	}
	#endif /* defined(CONFIG_CHIP_VDEC2) ... */