[mirror_ubuntu-artful-kernel.git] / arch / m68k / kernel / setup_no.c

/*
 *  linux/arch/m68knommu/kernel/setup.c
 *
 *  Copyright (C) 1999-2007  Greg Ungerer (gerg@snapgear.com)
 *  Copyright (C) 1998,1999  D. Jeff Dionne <jeff@uClinux.org>
 *  Copyleft  ()) 2000       James D. Schettine {james@telos-systems.com}
 *  Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
 *  Copyright (C) 1995       Hamish Macdonald
 *  Copyright (C) 2000       Lineo Inc. (www.lineo.com)
 *  Copyright (C) 2001 	     Lineo, Inc. <www.lineo.com>
 *
 *  68VZ328 Fixes/support    Evan Stawnyczy <e@lineo.ca>
 */

/*
 * This file handles the architecture-dependent parts of system setup
 */

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/console.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/bootmem.h>
#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/initrd.h>
#include <linux/root_dev.h>
#include <linux/rtc.h>

#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/machdep.h>
#include <asm/pgtable.h>
#include <asm/sections.h>

unsigned long memory_start;
unsigned long memory_end;

EXPORT_SYMBOL(memory_start);
EXPORT_SYMBOL(memory_end);

char __initdata command_line[COMMAND_LINE_SIZE];

/* machine dependent timer functions */
void (*mach_sched_init)(irq_handler_t handler) __initdata = NULL;
int (*mach_set_clock_mmss)(unsigned long);
int (*mach_hwclk) (int, struct rtc_time*);

/* machine dependent reboot functions */
void (*mach_reset)(void);
void (*mach_halt)(void);
void (*mach_power_off)(void);

#ifdef CONFIG_M68000
#if defined(CONFIG_M68328)
#define CPU_NAME	"MC68328"
#elif defined(CONFIG_M68EZ328)
#define CPU_NAME	"MC68EZ328"
#elif defined(CONFIG_M68VZ328)
#define CPU_NAME	"MC68VZ328"
#else
#define CPU_NAME	"MC68000"
#endif
#endif /* CONFIG_M68000 */
#ifdef CONFIG_M68360
#define CPU_NAME	"MC68360"
#endif
#ifndef CPU_NAME
#define	CPU_NAME	"UNKNOWN"
#endif

/*
 * Different cores have different instruction execution timings.
 * The old/traditional 68000 cores are basically all the same, at 16.
 * The ColdFire cores vary a little, their values are defined in their
 * headers. We default to the standard 68000 value here.
 */
#ifndef CPU_INSTR_PER_JIFFY
#define	CPU_INSTR_PER_JIFFY	16
#endif

#if defined(CONFIG_UBOOT)
/*
 * parse_uboot_commandline
 *
 * Copies u-boot commandline arguments and store them in the proper linux
 * variables.
 *
 * Assumes:
 *	_init_sp global contains the address in the stack pointer when the
 *	kernel starts (see head.S::_start)
 *
 *	U-Boot calling convention:
 *	(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
 *
 *	_init_sp can be parsed as such
 *
 *	_init_sp+00 = u-boot cmd after jsr into kernel (skip)
 *	_init_sp+04 = &kernel board_info (residual data)
 *	_init_sp+08 = &initrd_start
 *	_init_sp+12 = &initrd_end
 *	_init_sp+16 = &cmd_start
 *	_init_sp+20 = &cmd_end
 *
 *	This also assumes that the memory locations pointed to are still
 *	unmodified. U-boot places them near the end of external SDRAM.
 *
 * Argument(s):
 *	commandp = the linux commandline arg container to fill.
 *	size     = the sizeof commandp.
 *
 * Returns:
 */
static void __init parse_uboot_commandline(char *commandp, int size)
{
	extern unsigned long _init_sp;
	unsigned long *sp;
	unsigned long uboot_kbd;
	unsigned long uboot_initrd_start, uboot_initrd_end;
	unsigned long uboot_cmd_start, uboot_cmd_end;


	sp = (unsigned long *)_init_sp;
	uboot_kbd = sp[1];
	uboot_initrd_start = sp[2];
	uboot_initrd_end = sp[3];
	uboot_cmd_start = sp[4];
	uboot_cmd_end = sp[5];

	if (uboot_cmd_start && uboot_cmd_end)
		strncpy(commandp, (const char *)uboot_cmd_start, size);
#if defined(CONFIG_BLK_DEV_INITRD)
	if (uboot_initrd_start && uboot_initrd_end &&
		(uboot_initrd_end > uboot_initrd_start)) {
		initrd_start = uboot_initrd_start;
		initrd_end = uboot_initrd_end;
		ROOT_DEV = Root_RAM0;
		printk(KERN_INFO "initrd at 0x%lx:0x%lx\n",
			initrd_start, initrd_end);
	}
#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
}
#endif /* #if defined(CONFIG_UBOOT) */

void __init setup_arch(char **cmdline_p)
{
	int bootmap_size;

	memory_start = PAGE_ALIGN(_ramstart);
	memory_end = _ramend;

	init_mm.start_code = (unsigned long) &_stext;
	init_mm.end_code = (unsigned long) &_etext;
	init_mm.end_data = (unsigned long) &_edata;
	init_mm.brk = (unsigned long) 0;

	config_BSP(&command_line[0], sizeof(command_line));

#if defined(CONFIG_BOOTPARAM)
	strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
	command_line[sizeof(command_line) - 1] = 0;
#endif /* CONFIG_BOOTPARAM */

#if defined(CONFIG_UBOOT)
	/* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */
	#if defined(CONFIG_BOOTPARAM)
		/* Add the whitespace separator */
		command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' ';
		/* Parse uboot command line into the rest of the buffer */
		parse_uboot_commandline(
			&command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)],
			(sizeof(command_line) -
			(strlen(CONFIG_BOOTPARAM_STRING)+1)));
	/* Only CONFIG_UBOOT defined, create cmdline */
	#else
		parse_uboot_commandline(&command_line[0], sizeof(command_line));
	#endif /* CONFIG_BOOTPARAM */
	command_line[sizeof(command_line) - 1] = 0;
#endif /* CONFIG_UBOOT */

	printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\n");

#ifdef CONFIG_UCDIMM
	printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n");
#endif
#ifdef CONFIG_M68VZ328
	printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
#endif
#ifdef CONFIG_COLDFIRE
	printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
#ifdef CONFIG_M5307
	printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
#endif
#ifdef CONFIG_ELITE
	printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
#endif
#endif
	printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");

#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
	printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n");
#endif
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
	printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
#endif
#if defined (CONFIG_M68360)
	printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n");
	printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n");
#endif
#ifdef CONFIG_DRAGEN2
	printk(KERN_INFO "DragonEngine II board support by Georges Menie\n");
#endif
#ifdef CONFIG_M5235EVB
	printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
#endif

	pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n",
		 _stext, _etext, _sdata, _edata, __bss_start, __bss_stop);
	pr_debug("MEMORY -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx\n ",
		 __bss_stop, memory_start, memory_start, memory_end);

	/* Keep a copy of command line */
	*cmdline_p = &command_line[0];
	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
	boot_command_line[COMMAND_LINE_SIZE-1] = 0;

#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
	conswitchp = &dummy_con;
#endif

	/*
	 * Give all the memory to the bootmap allocator, tell it to put the
	 * boot mem_map at the start of memory.
	 */
	min_low_pfn = PFN_DOWN(memory_start);
	max_pfn = max_low_pfn = PFN_DOWN(memory_end);

	bootmap_size = init_bootmem_node(
			NODE_DATA(0),
			min_low_pfn,		/* map goes here */
			PFN_DOWN(PAGE_OFFSET),
			max_pfn);
	/*
	 * Free the usable memory, we have to make sure we do not free
	 * the bootmem bitmap so we then reserve it after freeing it :-)
	 */
	free_bootmem(memory_start, memory_end - memory_start);
	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);

#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD)
	if ((initrd_start > 0) && (initrd_start < initrd_end) &&
			(initrd_end < memory_end))
		reserve_bootmem(initrd_start, initrd_end - initrd_start,
				 BOOTMEM_DEFAULT);
#endif /* if defined(CONFIG_BLK_DEV_INITRD) */

	/*
	 * Get kmalloc into gear.
	 */
	paging_init();
}

/*
 *	Get CPU information for use by the procfs.
 */
static int show_cpuinfo(struct seq_file *m, void *v)
{
	char *cpu, *mmu, *fpu;
	u_long clockfreq;

	cpu = CPU_NAME;
	mmu = "none";
	fpu = "none";
	clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY;

	seq_printf(m, "CPU:\t\t%s\n"
		      "MMU:\t\t%s\n"
		      "FPU:\t\t%s\n"
		      "Clocking:\t%lu.%1luMHz\n"
		      "BogoMips:\t%lu.%02lu\n"
		      "Calibration:\t%lu loops\n",
		      cpu, mmu, fpu,
		      clockfreq / 1000000,
		      (clockfreq / 100000) % 10,
		      (loops_per_jiffy * HZ) / 500000,
		      ((loops_per_jiffy * HZ) / 5000) % 100,
		      (loops_per_jiffy * HZ));

	return 0;
}

static void *c_start(struct seq_file *m, loff_t *pos)
{
	return *pos < NR_CPUS ? ((void *) 0x12345678) : 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,
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/m68knommu/kernel/setup.c
	3	*
2f75d109 GU	4	* Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com)
2f75d109 GU	5	* Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org>
1da177e4 LT	6	* Copyleft ()) 2000 James D. Schettine {james@telos-systems.com}
	7	* Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
	8	* Copyright (C) 1995 Hamish Macdonald
e6070a17	9	* Copyright (C) 2000 Lineo Inc. (www.lineo.com)
1da177e4 LT	10	* Copyright (C) 2001 Lineo, Inc. <www.lineo.com>
	11	*
	12	* 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca>
	13	*/
	14
	15	/*
	16	* This file handles the architecture-dependent parts of system setup
	17	*/
	18
1da177e4 LT	19	#include <linux/kernel.h>
	20	#include <linux/sched.h>
	21	#include <linux/delay.h>
	22	#include <linux/interrupt.h>
1da177e4	23	#include <linux/fb.h>
e6070a17	24	#include <linux/module.h>
27ac792c	25	#include <linux/mm.h>
1da177e4	26	#include <linux/console.h>
1da177e4 LT	27	#include <linux/errno.h>
1da177e4 LT	28	#include <linux/string.h>
1da177e4 LT	29	#include <linux/bootmem.h>
1da177e4 LT	30	#include <linux/seq_file.h>
1da177e4	31	#include <linux/init.h>
588baeac LS	32	#include <linux/initrd.h>
588baeac LS	33	#include <linux/root_dev.h>
95177461	34	#include <linux/rtc.h>
1da177e4 LT	35
	36	#include <asm/setup.h>
	37	#include <asm/irq.h>
	38	#include <asm/machdep.h>
1da177e4	39	#include <asm/pgtable.h>
c06e9bb4	40	#include <asm/sections.h>
1da177e4	41
1da177e4 LT	42	unsigned long memory_start;
	43	unsigned long memory_end;
	44
e6070a17 GU	45	EXPORT_SYMBOL(memory_start);
	46	EXPORT_SYMBOL(memory_end);
	47
f2a09e19	48	char __initdata command_line[COMMAND_LINE_SIZE];
1da177e4	49
1da177e4	50	/* machine dependent timer functions */
35aefb26	51	void (*mach_sched_init)(irq_handler_t handler) __initdata = NULL;
2f75d109	52	int (*mach_set_clock_mmss)(unsigned long);
95177461	53	int (mach_hwclk) (int, struct rtc_time);
2f75d109 GU	54
	55	/* machine dependent reboot functions */
	56	void (*mach_reset)(void);
	57	void (*mach_halt)(void);
	58	void (*mach_power_off)(void);
1da177e4	59
1a62fe8d	60	#ifdef CONFIG_M68000
5198f847	61	#if defined(CONFIG_M68328)
7fc82b65	62	#define CPU_NAME "MC68328"
5198f847	63	#elif defined(CONFIG_M68EZ328)
7fc82b65	64	#define CPU_NAME "MC68EZ328"
5198f847	65	#elif defined(CONFIG_M68VZ328)
7fc82b65	66	#define CPU_NAME "MC68VZ328"
5198f847 DP	67	#else
5198f847 DP	68	#define CPU_NAME "MC68000"
1da177e4	69	#endif
5198f847	70	#endif /* CONFIG_M68000 */
1da177e4	71	#ifdef CONFIG_M68360
7fc82b65	72	#define CPU_NAME "MC68360"
1da177e4	73	#endif
7fc82b65 GU	74	#ifndef CPU_NAME
7fc82b65 GU	75	#define CPU_NAME "UNKNOWN"
1da177e4 LT	76	#endif
1da177e4 LT	77
733f31b7 GU	78	/*
	79	* Different cores have different instruction execution timings.
	80	* The old/traditional 68000 cores are basically all the same, at 16.
	81	* The ColdFire cores vary a little, their values are defined in their
	82	* headers. We default to the standard 68000 value here.
	83	*/
	84	#ifndef CPU_INSTR_PER_JIFFY
	85	#define CPU_INSTR_PER_JIFFY 16
	86	#endif
	87
588baeac LS	88	#if defined(CONFIG_UBOOT)
	89	/*
	90	* parse_uboot_commandline
	91	*
	92	* Copies u-boot commandline arguments and store them in the proper linux
	93	* variables.
	94	*
	95	* Assumes:
	96	* _init_sp global contains the address in the stack pointer when the
	97	* kernel starts (see head.S::_start)
	98	*
	99	* U-Boot calling convention:
	100	* (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
	101	*
	102	* _init_sp can be parsed as such
	103	*
	104	* _init_sp+00 = u-boot cmd after jsr into kernel (skip)
	105	* _init_sp+04 = &kernel board_info (residual data)
	106	* _init_sp+08 = &initrd_start
	107	* _init_sp+12 = &initrd_end
	108	* _init_sp+16 = &cmd_start
	109	* _init_sp+20 = &cmd_end
	110	*
	111	* This also assumes that the memory locations pointed to are still
	112	* unmodified. U-boot places them near the end of external SDRAM.
	113	*
	114	* Argument(s):
	115	* commandp = the linux commandline arg container to fill.
	116	* size = the sizeof commandp.
	117	*
	118	* Returns:
	119	*/
df592eb5	120	static void __init parse_uboot_commandline(char *commandp, int size)
588baeac LS	121	{
	122	extern unsigned long _init_sp;
	123	unsigned long *sp;
	124	unsigned long uboot_kbd;
	125	unsigned long uboot_initrd_start, uboot_initrd_end;
	126	unsigned long uboot_cmd_start, uboot_cmd_end;
	127
	128
	129	sp = (unsigned long *)_init_sp;
	130	uboot_kbd = sp[1];
	131	uboot_initrd_start = sp[2];
	132	uboot_initrd_end = sp[3];
	133	uboot_cmd_start = sp[4];
	134	uboot_cmd_end = sp[5];
	135
	136	if (uboot_cmd_start && uboot_cmd_end)
	137	strncpy(commandp, (const char *)uboot_cmd_start, size);
	138	#if defined(CONFIG_BLK_DEV_INITRD)
	139	if (uboot_initrd_start && uboot_initrd_end &&
	140	(uboot_initrd_end > uboot_initrd_start)) {
	141	initrd_start = uboot_initrd_start;
	142	initrd_end = uboot_initrd_end;
	143	ROOT_DEV = Root_RAM0;
	144	printk(KERN_INFO "initrd at 0x%lx:0x%lx\n",
	145	initrd_start, initrd_end);
	146	}
	147	#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
	148	}
	149	#endif /* #if defined(CONFIG_UBOOT) */
	150
1d2842e0	151	void __init setup_arch(char **cmdline_p)
1da177e4 LT	152	{
	153	int bootmap_size;
	154
1da177e4	155	memory_start = PAGE_ALIGN(_ramstart);
2f75d109	156	memory_end = _ramend;
1da177e4 LT	157
	158	init_mm.start_code = (unsigned long) &_stext;
	159	init_mm.end_code = (unsigned long) &_etext;
	160	init_mm.end_data = (unsigned long) &_edata;
e6070a17	161	init_mm.brk = (unsigned long) 0;
1da177e4 LT	162
	163	config_BSP(&command_line[0], sizeof(command_line));
	164
bc72450a GU	165	#if defined(CONFIG_BOOTPARAM)
	166	strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
	167	command_line[sizeof(command_line) - 1] = 0;
588baeac LS	168	#endif /* CONFIG_BOOTPARAM */
	169
	170	#if defined(CONFIG_UBOOT)
	171	/* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */
	172	#if defined(CONFIG_BOOTPARAM)
	173	/* Add the whitespace separator */
	174	command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' ';
	175	/* Parse uboot command line into the rest of the buffer */
	176	parse_uboot_commandline(
	177	&command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)],
	178	(sizeof(command_line) -
	179	(strlen(CONFIG_BOOTPARAM_STRING)+1)));
	180	/* Only CONFIG_UBOOT defined, create cmdline */
	181	#else
	182	parse_uboot_commandline(&command_line[0], sizeof(command_line));
	183	#endif /* CONFIG_BOOTPARAM */
	184	command_line[sizeof(command_line) - 1] = 0;
	185	#endif /* CONFIG_UBOOT */
bc72450a	186
7fc82b65	187	printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\n");
1da177e4 LT	188
	189	#ifdef CONFIG_UCDIMM
	190	printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n");
	191	#endif
	192	#ifdef CONFIG_M68VZ328
	193	printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
	194	#endif
	195	#ifdef CONFIG_COLDFIRE
	196	printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
	197	#ifdef CONFIG_M5307
	198	printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
	199	#endif
	200	#ifdef CONFIG_ELITE
	201	printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
e6070a17	202	#endif
1da177e4 LT	203	#endif
	204	printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
	205
	206	#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
	207	printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n");
	208	#endif
1da177e4 LT	209	#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
	210	printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
	211	#endif
1da177e4 LT	212	#if defined (CONFIG_M68360)
	213	printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n");
	214	printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n");
	215	#endif
	216	#ifdef CONFIG_DRAGEN2
	217	printk(KERN_INFO "DragonEngine II board support by Georges Menie\n");
	218	#endif
e6070a17	219	#ifdef CONFIG_M5235EVB
008150f5	220	printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
e6070a17	221	#endif
1da177e4	222
54503b1d	223	pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n",
dc061051	224	_stext, _etext, _sdata, _edata, __bss_start, __bss_stop);
54503b1d	225	pr_debug("MEMORY -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx\n ",
dc061051	226	__bss_stop, memory_start, memory_start, memory_end);
1da177e4 LT	227
	228	/* Keep a copy of command line */
	229	*cmdline_p = &command_line[0];
f2a09e19 ABL	230	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
f2a09e19 ABL	231	boot_command_line[COMMAND_LINE_SIZE-1] = 0;
1da177e4	232
1da177e4 LT	233	#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
	234	conswitchp = &dummy_con;
	235	#endif
	236
	237	/*
	238	* Give all the memory to the bootmap allocator, tell it to put the
	239	* boot mem_map at the start of memory.
	240	*/
b66f55cd GU	241	min_low_pfn = PFN_DOWN(memory_start);
	242	max_pfn = max_low_pfn = PFN_DOWN(memory_end);
	243
1da177e4 LT	244	bootmap_size = init_bootmem_node(
1da177e4 LT	245	NODE_DATA(0),
b66f55cd GU	246	min_low_pfn, /* map goes here */
	247	PFN_DOWN(PAGE_OFFSET),
	248	max_pfn);
1da177e4 LT	249	/*
	250	* Free the usable memory, we have to make sure we do not free
	251	* the bootmem bitmap so we then reserve it after freeing it :-)
	252	*/
	253	free_bootmem(memory_start, memory_end - memory_start);
72a7fe39	254	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
1da177e4	255
588baeac LS	256	#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD)
	257	if ((initrd_start > 0) && (initrd_start < initrd_end) &&
	258	(initrd_end < memory_end))
	259	reserve_bootmem(initrd_start, initrd_end - initrd_start,
	260	BOOTMEM_DEFAULT);
	261	#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
	262
1da177e4 LT	263	/*
	264	* Get kmalloc into gear.
	265	*/
	266	paging_init();
	267	}
	268
1da177e4 LT	269	/*
	270	* Get CPU information for use by the procfs.
	271	*/
1da177e4 LT	272	static int show_cpuinfo(struct seq_file m, void v)
1da177e4 LT	273	{
22982a56 GU	274	char cpu, mmu, *fpu;
22982a56 GU	275	u_long clockfreq;
1da177e4	276
7fc82b65	277	cpu = CPU_NAME;
22982a56 GU	278	mmu = "none";
22982a56 GU	279	fpu = "none";
733f31b7	280	clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY;
22982a56 GU	281
	282	seq_printf(m, "CPU:\t\t%s\n"
	283	"MMU:\t\t%s\n"
	284	"FPU:\t\t%s\n"
	285	"Clocking:\t%lu.%1luMHz\n"
	286	"BogoMips:\t%lu.%02lu\n"
	287	"Calibration:\t%lu loops\n",
	288	cpu, mmu, fpu,
	289	clockfreq / 1000000,
	290	(clockfreq / 100000) % 10,
	291	(loops_per_jiffy * HZ) / 500000,
	292	((loops_per_jiffy * HZ) / 5000) % 100,
	293	(loops_per_jiffy * HZ));
1da177e4 LT	294
	295	return 0;
	296	}
	297
	298	static void c_start(struct seq_file m, loff_t *pos)
	299	{
	300	return pos < NR_CPUS ? ((void ) 0x12345678) : NULL;
	301	}
	302
	303	static void c_next(struct seq_file m, void v, loff_t pos)
	304	{
	305	++*pos;
	306	return c_start(m, pos);
	307	}
	308
	309	static void c_stop(struct seq_file m, void v)
	310	{
	311	}
	312
03a44825	313	const struct seq_operations cpuinfo_op = {
1da177e4 LT	314	.start = c_start,
	315	.next = c_next,
	316	.stop = c_stop,
	317	.show = show_cpuinfo,
	318	};
	319