[linux-2.6-block.git] / arch / sh64 / kernel / setup.c

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * arch/sh64/kernel/setup.c
 *
 * sh64 Arch Support
 *
 * This file handles the architecture-dependent parts of initialization
 *
 * Copyright (C) 2000, 2001  Paolo Alberelli
 * Copyright (C) 2003, 2004  Paul Mundt
 *
 * benedict.gaster@superh.com:   2nd May 2002
 *    Modified to use the empty_zero_page to pass command line arguments.
 *
 * benedict.gaster@superh.com:	 3rd May 2002
 *    Added support for ramdisk, removing statically linked romfs at the same time.
 *
 * lethal@linux-sh.org:          15th May 2003
 *    Added generic procfs cpuinfo reporting. Make boards just export their name.
 *
 * lethal@linux-sh.org:          25th May 2003
 *    Added generic get_cpu_subtype() for subtype reporting from cpu_data->type.
 *
 */
#include <linux/errno.h>
#include <linux/rwsem.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/a.out.h>
#include <linux/tty.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/config.h>
#include <linux/init.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>
#include <linux/bootmem.h>
#include <linux/console.h>
#include <linux/root_dev.h>
#include <linux/cpu.h>
#include <linux/initrd.h>
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/platform.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/smp.h>

#ifdef CONFIG_VT
#include <linux/console.h>
#endif

struct screen_info screen_info;

#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

extern int root_mountflags;
extern char *get_system_type(void);
extern void platform_setup(void);
extern void platform_monitor(void);
extern void platform_reserve(void);
extern int sh64_cache_init(void);
extern int sh64_tlb_init(void);

#define RAMDISK_IMAGE_START_MASK	0x07FF
#define RAMDISK_PROMPT_FLAG		0x8000
#define RAMDISK_LOAD_FLAG		0x4000

static char command_line[COMMAND_LINE_SIZE] = { 0, };
unsigned long long memory_start = CONFIG_MEMORY_START;
unsigned long long memory_end = CONFIG_MEMORY_START + (CONFIG_MEMORY_SIZE_IN_MB * 1024 * 1024);

struct sh_cpuinfo boot_cpu_data;

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

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

	for (;;) {
	  /*
	   * "mem=XXX[kKmM]" defines a size of memory.
	   */
	        if (c == ' ' && !memcmp(from, "mem=", 4)) {
		      if (to != command_line)
			to--;
		      {
			unsigned long mem_size;

			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;
}

static void __init sh64_cpu_type_detect(void)
{
	extern unsigned long long peek_real_address_q(unsigned long long addr);
	unsigned long long cir;
	/* Do peeks in real mode to avoid having to set up a mapping for the
	   WPC registers.  On SH5-101 cut2, such a mapping would be exposed to
	   an address translation erratum which would make it hard to set up
	   correctly. */
	cir = peek_real_address_q(0x0d000008);

	if ((cir & 0xffff) == 0x5103) {
		boot_cpu_data.type = CPU_SH5_103;
	} else if (((cir >> 32) & 0xffff) == 0x51e2) {
		/* CPU.VCR aliased at CIR address on SH5-101 */
		boot_cpu_data.type = CPU_SH5_101;
	} else {
		boot_cpu_data.type = CPU_SH_NONE;
	}
}

void __init setup_arch(char **cmdline_p)
{
	unsigned long bootmap_size, i;
	unsigned long first_pfn, start_pfn, last_pfn, pages;

#ifdef CONFIG_EARLY_PRINTK
	extern void enable_early_printk(void);

	/*
	 * Setup Early SCIF console
	 */
	enable_early_printk();
#endif

	/*
	 * Setup TLB mappings
	 */
	sh64_tlb_init();

	/*
	 * Caches are already initialized by the time we get here, so we just
	 * fill in cpu_data info for the caches.
	 */
	sh64_cache_init();

	platform_setup();
	platform_monitor();

	sh64_cpu_type_detect();

	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);

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

	parse_mem_cmdline(cmdline_p);

	/*
	 * Find the lowest and highest page frame numbers we have available
	 */
	first_pfn = PFN_DOWN(memory_start);
	last_pfn = PFN_DOWN(memory_end);
	pages = last_pfn - first_pfn;

	/*
	 * Partially used pages are not usable - thus
	 * we are rounding upwards:
	 */
	start_pfn = PFN_UP(__pa(_end));

	/*
	 * Find a proper area for the bootmem bitmap. After this
	 * bootstrap step all allocations (until the page allocator
	 * is intact) must be done via bootmem_alloc().
	 */
	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
					 first_pfn,
					 last_pfn);
        /*
         * Round it up.
         */
        bootmap_size = PFN_PHYS(PFN_UP(bootmap_size));

	/*
	 * Register fully available RAM pages with the bootmem allocator.
	 */
	free_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn), PFN_PHYS(pages));

	/*
	 * Reserve all kernel sections + bootmem bitmap + a guard page.
	 */
	reserve_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn),
		        (PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE) - PFN_PHYS(first_pfn));

	/*
	 * Reserve platform dependent sections
	 */
	platform_reserve();

#ifdef CONFIG_BLK_DEV_INITRD
	if (LOADER_TYPE && INITRD_START) {
		if (INITRD_START + INITRD_SIZE <= (PFN_PHYS(last_pfn))) {
		        reserve_bootmem_node(NODE_DATA(0), INITRD_START + __MEMORY_START, INITRD_SIZE);

			initrd_start =
			  (long) INITRD_START ? INITRD_START + PAGE_OFFSET +  __MEMORY_START : 0;

			initrd_end = initrd_start + INITRD_SIZE;
		} else {
			printk("initrd extends beyond end of memory "
			    "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
				    (long) INITRD_START + INITRD_SIZE,
				    PFN_PHYS(last_pfn));
			initrd_start = 0;
		}
	}
#endif

	/*
	 * Claim all RAM, ROM, and I/O resources.
	 */

	/* Kernel RAM */
	request_resource(&iomem_resource, &code_resource);
	request_resource(&iomem_resource, &data_resource);

	/* Other KRAM space */
	for (i = 0; i < STANDARD_KRAM_RESOURCES - 2; i++)
		request_resource(&iomem_resource,
				 &platform_parms.kram_res_p[i]);

	/* XRAM space */
	for (i = 0; i < STANDARD_XRAM_RESOURCES; i++)
		request_resource(&iomem_resource,
				 &platform_parms.xram_res_p[i]);

	/* ROM space */
	for (i = 0; i < STANDARD_ROM_RESOURCES; i++)
		request_resource(&iomem_resource,
				 &platform_parms.rom_res_p[i]);

	/* I/O space */
	for (i = 0; i < STANDARD_IO_RESOURCES; i++)
		request_resource(&ioport_resource,
				 &platform_parms.io_res_p[i]);


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

	printk("Hardware FPU: %s\n", fpu_in_use ? "enabled" : "disabled");

	paging_init();
}

void __xchg_called_with_bad_pointer(void)
{
	printk(KERN_EMERG "xchg() called with bad pointer !\n");
}

static struct cpu cpu[1];

static int __init topology_init(void)
{
	return register_cpu(cpu, 0, NULL);
}

subsys_initcall(topology_init);

/*
 *	Get CPU information
 */
static const char *cpu_name[] = {
	[CPU_SH5_101]	= "SH5-101",
	[CPU_SH5_103]	= "SH5-103",
	[CPU_SH_NONE]	= "Unknown",
};

const char *get_cpu_subtype(void)
{
	return cpu_name[boot_cpu_data.type];
}

#ifdef CONFIG_PROC_FS
static int show_cpuinfo(struct seq_file *m,void *v)
{
	unsigned int cpu = smp_processor_id();

	if (!cpu)
		seq_printf(m, "machine\t\t: %s\n", get_system_type());

	seq_printf(m, "processor\t: %d\n", cpu);
	seq_printf(m, "cpu family\t: SH-5\n");
	seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());

	seq_printf(m, "icache size\t: %dK-bytes\n",
		   (boot_cpu_data.icache.ways *
		    boot_cpu_data.icache.sets *
		    boot_cpu_data.icache.linesz) >> 10);
	seq_printf(m, "dcache size\t: %dK-bytes\n",
		   (boot_cpu_data.dcache.ways *
		    boot_cpu_data.dcache.sets *
		    boot_cpu_data.dcache.linesz) >> 10);
	seq_printf(m, "itlb entries\t: %d\n", boot_cpu_data.itlb.entries);
	seq_printf(m, "dtlb entries\t: %d\n", boot_cpu_data.dtlb.entries);

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

	PRINT_CLOCK("cpu", boot_cpu_data.cpu_clock);
	PRINT_CLOCK("bus", boot_cpu_data.bus_clock);
	PRINT_CLOCK("module", boot_cpu_data.module_clock);

        seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
		     (loops_per_jiffy*HZ+2500)/500000,
		     ((loops_per_jiffy*HZ+2500)/5000) % 100);

	return 0;
}

static void *c_start(struct seq_file *m, loff_t *pos)
{
	return (void*)(*pos == 0);
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
	return NULL;
}
static void c_stop(struct seq_file *m, void *v)
{
}
struct seq_operations cpuinfo_op = {
	.start	= c_start,
	.next	= c_next,
	.stop	= c_stop,
	.show	= show_cpuinfo,
};
#endif /* CONFIG_PROC_FS */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
	5	*
	6	* arch/sh64/kernel/setup.c
	7	*
	8	* sh64 Arch Support
	9	*
	10	* This file handles the architecture-dependent parts of initialization
	11	*
	12	* Copyright (C) 2000, 2001 Paolo Alberelli
	13	* Copyright (C) 2003, 2004 Paul Mundt
	14	*
	15	* benedict.gaster@superh.com: 2nd May 2002
	16	* Modified to use the empty_zero_page to pass command line arguments.
	17	*
	18	* benedict.gaster@superh.com: 3rd May 2002
	19	* Added support for ramdisk, removing statically linked romfs at the same time.
	20	*
	21	* lethal@linux-sh.org: 15th May 2003
	22	* Added generic procfs cpuinfo reporting. Make boards just export their name.
	23	*
	24	* lethal@linux-sh.org: 25th May 2003
	25	* Added generic get_cpu_subtype() for subtype reporting from cpu_data->type.
	26	*
	27	*/
	28	#include <linux/errno.h>
	29	#include <linux/rwsem.h>
	30	#include <linux/sched.h>
	31	#include <linux/kernel.h>
	32	#include <linux/mm.h>
	33	#include <linux/stddef.h>
	34	#include <linux/unistd.h>
	35	#include <linux/ptrace.h>
	36	#include <linux/slab.h>
	37	#include <linux/user.h>
	38	#include <linux/a.out.h>
	39	#include <linux/tty.h>
	40	#include <linux/ioport.h>
	41	#include <linux/delay.h>
	42	#include <linux/config.h>
	43	#include <linux/init.h>
	44	#include <linux/seq_file.h>
	45	#include <linux/blkdev.h>
	46	#include <linux/bootmem.h>
	47	#include <linux/console.h>
	48	#include <linux/root_dev.h>
	49	#include <linux/cpu.h>
	50	#include <linux/initrd.h>
	51	#include <asm/processor.h>
	52	#include <asm/page.h>
	53	#include <asm/pgtable.h>
	54	#include <asm/platform.h>
	55	#include <asm/uaccess.h>
	56	#include <asm/system.h>
	57	#include <asm/io.h>
	58	#include <asm/sections.h>
	59	#include <asm/setup.h>
	60	#include <asm/smp.h>
	61
	62	#ifdef CONFIG_VT
	63	#include <linux/console.h>
	64	#endif
65
66	struct screen_info screen_info;
67
68	#ifdef CONFIG_BLK_DEV_RAM
69	extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */
70	extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */
71	extern int rd_image_start; /* starting block # of image */
72	#endif
73
74	extern int root_mountflags;
75	extern char *get_system_type(void);
76	extern void platform_setup(void);
77	extern void platform_monitor(void);
78	extern void platform_reserve(void);
79	extern int sh64_cache_init(void);
80	extern int sh64_tlb_init(void);
81
82	#define RAMDISK_IMAGE_START_MASK 0x07FF
83	#define RAMDISK_PROMPT_FLAG 0x8000
84	#define RAMDISK_LOAD_FLAG 0x4000
85
86	static char command_line[COMMAND_LINE_SIZE] = { 0, };
87	unsigned long long memory_start = CONFIG_MEMORY_START;
88	unsigned long long memory_end = CONFIG_MEMORY_START + (CONFIG_MEMORY_SIZE_IN_MB * 1024 * 1024);
89
90	struct sh_cpuinfo boot_cpu_data;
91
92	static inline void parse_mem_cmdline (char ** cmdline_p)
93	{
94	char c = ' ', to = command_line, from = COMMAND_LINE;
95	int len = 0;
96
97	/* Save unparsed command line copy for /proc/cmdline */
98	memcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
99	saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
100
101	for (;;) {
102	/*
103	* "mem=XXX[kKmM]" defines a size of memory.
104	*/
105	if (c == ' ' && !memcmp(from, "mem=", 4)) {
106	if (to != command_line)
107	to--;
108	{
109	unsigned long mem_size;
110
111	mem_size = memparse(from+4, &from);
112	memory_end = memory_start + mem_size;
113	}
114	}
115	c = *(from++);
116	if (!c)
117	break;
118	if (COMMAND_LINE_SIZE <= ++len)
119	break;
120	*(to++) = c;
121	}
122	*to = '\0';
123
124	*cmdline_p = command_line;
125	}
126
127	static void __init sh64_cpu_type_detect(void)
128	{
129	extern unsigned long long peek_real_address_q(unsigned long long addr);
130	unsigned long long cir;
131	/* Do peeks in real mode to avoid having to set up a mapping for the
132	WPC registers. On SH5-101 cut2, such a mapping would be exposed to
133	an address translation erratum which would make it hard to set up
134	correctly. */
135	cir = peek_real_address_q(0x0d000008);
136
137	if ((cir & 0xffff) == 0x5103) {
138	boot_cpu_data.type = CPU_SH5_103;
139	} else if (((cir >> 32) & 0xffff) == 0x51e2) {
140	/* CPU.VCR aliased at CIR address on SH5-101 */
141	boot_cpu_data.type = CPU_SH5_101;
142	} else {
143	boot_cpu_data.type = CPU_SH_NONE;
144	}
145	}
146
147	void __init setup_arch(char **cmdline_p)
148	{
149	unsigned long bootmap_size, i;
150	unsigned long first_pfn, start_pfn, last_pfn, pages;
151
152	#ifdef CONFIG_EARLY_PRINTK
153	extern void enable_early_printk(void);
154
155	/*
156	* Setup Early SCIF console
157	*/
158	enable_early_printk();
159	#endif
160
161	/*
162	* Setup TLB mappings
163	*/
164	sh64_tlb_init();
165
166	/*
167	* Caches are already initialized by the time we get here, so we just
168	* fill in cpu_data info for the caches.
169	*/
170	sh64_cache_init();
171
172	platform_setup();
173	platform_monitor();
174
175	sh64_cpu_type_detect();
176
177	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
178
179	#ifdef CONFIG_BLK_DEV_RAM
180	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
181	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
182	rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
183	#endif
184
185	if (!MOUNT_ROOT_RDONLY)
186	root_mountflags &= ~MS_RDONLY;
187	init_mm.start_code = (unsigned long) _text;
188	init_mm.end_code = (unsigned long) _etext;
189	init_mm.end_data = (unsigned long) _edata;
190	init_mm.brk = (unsigned long) _end;
191
192	code_resource.start = __pa(_text);
193	code_resource.end = __pa(_etext)-1;
194	data_resource.start = __pa(_etext);
195	data_resource.end = __pa(_edata)-1;
196
197	parse_mem_cmdline(cmdline_p);
198
199	/*
200	* Find the lowest and highest page frame numbers we have available
201	*/
202	first_pfn = PFN_DOWN(memory_start);
203	last_pfn = PFN_DOWN(memory_end);
204	pages = last_pfn - first_pfn;
205
206	/*
207	* Partially used pages are not usable - thus
208	* we are rounding upwards:
209	*/
210	start_pfn = PFN_UP(__pa(_end));
211
212	/*
213	* Find a proper area for the bootmem bitmap. After this
214	* bootstrap step all allocations (until the page allocator
215	* is intact) must be done via bootmem_alloc().
216	*/
217	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
218	first_pfn,
219	last_pfn);
220	/*
221	* Round it up.
222	*/
223	bootmap_size = PFN_PHYS(PFN_UP(bootmap_size));
224
225	/*
226	* Register fully available RAM pages with the bootmem allocator.
227	*/
228	free_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn), PFN_PHYS(pages));
229
230	/*
231	* Reserve all kernel sections + bootmem bitmap + a guard page.
232	*/
233	reserve_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn),
234	(PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE) - PFN_PHYS(first_pfn));
235
236	/*
237	* Reserve platform dependent sections
238	*/
239	platform_reserve();
240
241	#ifdef CONFIG_BLK_DEV_INITRD
242	if (LOADER_TYPE && INITRD_START) {
243	if (INITRD_START + INITRD_SIZE <= (PFN_PHYS(last_pfn))) {
244	reserve_bootmem_node(NODE_DATA(0), INITRD_START + __MEMORY_START, INITRD_SIZE);
245
246	initrd_start =
247	(long) INITRD_START ? INITRD_START + PAGE_OFFSET + __MEMORY_START : 0;
248
249	initrd_end = initrd_start + INITRD_SIZE;
250	} else {
251	printk("initrd extends beyond end of memory "
252	"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
253	(long) INITRD_START + INITRD_SIZE,
254	PFN_PHYS(last_pfn));
255	initrd_start = 0;
256	}
257	}
258	#endif
259
260	/*
261	* Claim all RAM, ROM, and I/O resources.
262	*/
263
264	/* Kernel RAM */
265	request_resource(&iomem_resource, &code_resource);
266	request_resource(&iomem_resource, &data_resource);
267
268	/* Other KRAM space */
269	for (i = 0; i < STANDARD_KRAM_RESOURCES - 2; i++)
270	request_resource(&iomem_resource,
271	&platform_parms.kram_res_p[i]);
272
273	/* XRAM space */
274	for (i = 0; i < STANDARD_XRAM_RESOURCES; i++)
275	request_resource(&iomem_resource,
276	&platform_parms.xram_res_p[i]);
277
278	/* ROM space */
279	for (i = 0; i < STANDARD_ROM_RESOURCES; i++)
280	request_resource(&iomem_resource,
281	&platform_parms.rom_res_p[i]);
282
283	/* I/O space */
284	for (i = 0; i < STANDARD_IO_RESOURCES; i++)
285	request_resource(&ioport_resource,
286	&platform_parms.io_res_p[i]);
287
288
289	#ifdef CONFIG_VT
290	#if defined(CONFIG_VGA_CONSOLE)
291	conswitchp = &vga_con;
292	#elif defined(CONFIG_DUMMY_CONSOLE)
293	conswitchp = &dummy_con;
294	#endif
295	#endif
296
297	printk("Hardware FPU: %s\n", fpu_in_use ? "enabled" : "disabled");
298
299	paging_init();
300	}
301
302	void __xchg_called_with_bad_pointer(void)
303	{
304	printk(KERN_EMERG "xchg() called with bad pointer !\n");
305	}
306
307	static struct cpu cpu[1];
308
309	static int __init topology_init(void)
310	{
311	return register_cpu(cpu, 0, NULL);
312	}
313
314	subsys_initcall(topology_init);
315
316	/*
317	* Get CPU information
318	*/
319	static const char *cpu_name[] = {
320	[CPU_SH5_101] = "SH5-101",
321	[CPU_SH5_103] = "SH5-103",
322	[CPU_SH_NONE] = "Unknown",
323	};
324
325	const char *get_cpu_subtype(void)
326	{
327	return cpu_name[boot_cpu_data.type];
328	}
329
330	#ifdef CONFIG_PROC_FS
331	static int show_cpuinfo(struct seq_file m,void v)
332	{
333	unsigned int cpu = smp_processor_id();
334
335	if (!cpu)
336	seq_printf(m, "machine\t\t: %s\n", get_system_type());
337
338	seq_printf(m, "processor\t: %d\n", cpu);
339	seq_printf(m, "cpu family\t: SH-5\n");
340	seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
341
342	seq_printf(m, "icache size\t: %dK-bytes\n",
343	(boot_cpu_data.icache.ways *
344	boot_cpu_data.icache.sets *
345	boot_cpu_data.icache.linesz) >> 10);
346	seq_printf(m, "dcache size\t: %dK-bytes\n",
347	(boot_cpu_data.dcache.ways *
348	boot_cpu_data.dcache.sets *
349	boot_cpu_data.dcache.linesz) >> 10);
350	seq_printf(m, "itlb entries\t: %d\n", boot_cpu_data.itlb.entries);
351	seq_printf(m, "dtlb entries\t: %d\n", boot_cpu_data.dtlb.entries);
352
353	#define PRINT_CLOCK(name, value) \
354	seq_printf(m, name " clock\t: %d.%02dMHz\n", \
355	((value) / 1000000), ((value) % 1000000)/10000)
356
357	PRINT_CLOCK("cpu", boot_cpu_data.cpu_clock);
358	PRINT_CLOCK("bus", boot_cpu_data.bus_clock);
359	PRINT_CLOCK("module", boot_cpu_data.module_clock);
360
361	seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
362	(loops_per_jiffy*HZ+2500)/500000,
363	((loops_per_jiffy*HZ+2500)/5000) % 100);
364
365	return 0;
366	}
367
368	static void c_start(struct seq_file m, loff_t *pos)
369	{
370	return (void)(pos == 0);
371	}
372	static void c_next(struct seq_file m, void v, loff_t pos)
373	{
374	return NULL;
375	}
376	static void c_stop(struct seq_file m, void v)
377	{
378	}
379	struct seq_operations cpuinfo_op = {
380	.start = c_start,
381	.next = c_next,
382	.stop = c_stop,
383	.show = show_cpuinfo,
384	};
385	#endif /* CONFIG_PROC_FS */