[GitHub/MotorolaMobilityLLC/kernel-slsi.git] / arch / m68k / kernel / setup.c

/*
 *  linux/arch/m68k/kernel/setup.c
 *
 *  Copyright (C) 1995  Hamish Macdonald
 */

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

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

#include <asm/bootinfo.h>
#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/machdep.h>
#ifdef CONFIG_AMIGA
#include <asm/amigahw.h>
#endif
#ifdef CONFIG_ATARI
#include <asm/atarihw.h>
#include <asm/atari_stram.h>
#endif
#ifdef CONFIG_SUN3X
#include <asm/dvma.h>
#endif

unsigned long m68k_machtype;
unsigned long m68k_cputype;
EXPORT_SYMBOL(m68k_machtype);
EXPORT_SYMBOL(m68k_cputype);
unsigned long m68k_fputype;
unsigned long m68k_mmutype;
#ifdef CONFIG_VME
unsigned long vme_brdtype;
EXPORT_SYMBOL(vme_brdtype);
#endif

int m68k_is040or060;
EXPORT_SYMBOL(m68k_is040or060);

extern int end;
extern unsigned long availmem;

int m68k_num_memory;
EXPORT_SYMBOL(m68k_num_memory);
int m68k_realnum_memory;
EXPORT_SYMBOL(m68k_realnum_memory);
unsigned long m68k_memoffset;
EXPORT_SYMBOL(m68k_memoffset);
struct mem_info m68k_memory[NUM_MEMINFO];
EXPORT_SYMBOL(m68k_memory);

struct mem_info m68k_ramdisk;

static char m68k_command_line[CL_SIZE];

void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;
/* machine dependent irq functions */
void (*mach_init_IRQ) (void) __initdata = NULL;
void (*mach_get_model) (char *model);
int (*mach_get_hardware_list) (char *buffer);
/* machine dependent timer functions */
unsigned long (*mach_gettimeoffset) (void);
int (*mach_hwclk) (int, struct rtc_time*);
EXPORT_SYMBOL(mach_hwclk);
int (*mach_set_clock_mmss) (unsigned long);
unsigned int (*mach_get_ss)(void);
int (*mach_get_rtc_pll)(struct rtc_pll_info *);
int (*mach_set_rtc_pll)(struct rtc_pll_info *);
EXPORT_SYMBOL(mach_get_ss);
EXPORT_SYMBOL(mach_get_rtc_pll);
EXPORT_SYMBOL(mach_set_rtc_pll);
void (*mach_reset)( void );
void (*mach_halt)( void );
void (*mach_power_off)( void );
long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
#ifdef CONFIG_HEARTBEAT
void (*mach_heartbeat) (int);
EXPORT_SYMBOL(mach_heartbeat);
#endif
#ifdef CONFIG_M68K_L2_CACHE
void (*mach_l2_flush) (int);
#endif
#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
void (*mach_beep)(unsigned int, unsigned int);
EXPORT_SYMBOL(mach_beep);
#endif
#if defined(CONFIG_ISA) && defined(MULTI_ISA)
int isa_type;
int isa_sex;
EXPORT_SYMBOL(isa_type);
EXPORT_SYMBOL(isa_sex);
#endif

extern int amiga_parse_bootinfo(const struct bi_record *);
extern int atari_parse_bootinfo(const struct bi_record *);
extern int mac_parse_bootinfo(const struct bi_record *);
extern int q40_parse_bootinfo(const struct bi_record *);
extern int bvme6000_parse_bootinfo(const struct bi_record *);
extern int mvme16x_parse_bootinfo(const struct bi_record *);
extern int mvme147_parse_bootinfo(const struct bi_record *);
extern int hp300_parse_bootinfo(const struct bi_record *);

extern void config_amiga(void);
extern void config_atari(void);
extern void config_mac(void);
extern void config_sun3(void);
extern void config_apollo(void);
extern void config_mvme147(void);
extern void config_mvme16x(void);
extern void config_bvme6000(void);
extern void config_hp300(void);
extern void config_q40(void);
extern void config_sun3x(void);

#define MASK_256K 0xfffc0000

extern void paging_init(void);

static void __init m68k_parse_bootinfo(const struct bi_record *record)
{
	while (record->tag != BI_LAST) {
		int unknown = 0;
		const unsigned long *data = record->data;

		switch (record->tag) {
		case BI_MACHTYPE:
		case BI_CPUTYPE:
		case BI_FPUTYPE:
		case BI_MMUTYPE:
			/* Already set up by head.S */
			break;

		case BI_MEMCHUNK:
			if (m68k_num_memory < NUM_MEMINFO) {
				m68k_memory[m68k_num_memory].addr = data[0];
				m68k_memory[m68k_num_memory].size = data[1];
				m68k_num_memory++;
			} else
				printk("m68k_parse_bootinfo: too many memory chunks\n");
			break;

		case BI_RAMDISK:
			m68k_ramdisk.addr = data[0];
			m68k_ramdisk.size = data[1];
			break;

		case BI_COMMAND_LINE:
			strlcpy(m68k_command_line, (const char *)data,
				sizeof(m68k_command_line));
			break;

		default:
			if (MACH_IS_AMIGA)
				unknown = amiga_parse_bootinfo(record);
			else if (MACH_IS_ATARI)
				unknown = atari_parse_bootinfo(record);
			else if (MACH_IS_MAC)
				unknown = mac_parse_bootinfo(record);
			else if (MACH_IS_Q40)
				unknown = q40_parse_bootinfo(record);
			else if (MACH_IS_BVME6000)
				unknown = bvme6000_parse_bootinfo(record);
			else if (MACH_IS_MVME16x)
				unknown = mvme16x_parse_bootinfo(record);
			else if (MACH_IS_MVME147)
				unknown = mvme147_parse_bootinfo(record);
			else if (MACH_IS_HP300)
				unknown = hp300_parse_bootinfo(record);
			else
				unknown = 1;
		}
		if (unknown)
			printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n",
			       record->tag);
		record = (struct bi_record *)((unsigned long)record +
					      record->size);
	}

	m68k_realnum_memory = m68k_num_memory;
#ifdef CONFIG_SINGLE_MEMORY_CHUNK
	if (m68k_num_memory > 1) {
		printk("Ignoring last %i chunks of physical memory\n",
		       (m68k_num_memory - 1));
		m68k_num_memory = 1;
	}
	m68k_memoffset = m68k_memory[0].addr-PAGE_OFFSET;
#endif
}

void __init setup_arch(char **cmdline_p)
{
	extern int _etext, _edata, _end;
	int i;

	/* The bootinfo is located right after the kernel bss */
	m68k_parse_bootinfo((const struct bi_record *)&_end);

	if (CPU_IS_040)
		m68k_is040or060 = 4;
	else if (CPU_IS_060)
		m68k_is040or060 = 6;

	/* FIXME: m68k_fputype is passed in by Penguin booter, which can
	 * be confused by software FPU emulation. BEWARE.
	 * We should really do our own FPU check at startup.
	 * [what do we do with buggy 68LC040s? if we have problems
	 *  with them, we should add a test to check_bugs() below] */
#ifndef CONFIG_M68KFPU_EMU_ONLY
	/* clear the fpu if we have one */
	if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) {
		volatile int zero = 0;
		asm volatile ("frestore %0" : : "m" (zero));
	}
#endif

	if (CPU_IS_060) {
		u32 pcr;

		asm (".chip 68060; movec %%pcr,%0; .chip 68k"
		     : "=d" (pcr));
		if (((pcr >> 8) & 0xff) <= 5) {
			printk("Enabling workaround for errata I14\n");
			asm (".chip 68060; movec %0,%%pcr; .chip 68k"
			     : : "d" (pcr | 0x20));
		}
	}

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

	*cmdline_p = m68k_command_line;
	memcpy(boot_command_line, *cmdline_p, CL_SIZE);

	parse_early_param();

#ifdef CONFIG_DUMMY_CONSOLE
	conswitchp = &dummy_con;
#endif

	switch (m68k_machtype) {
#ifdef CONFIG_AMIGA
	case MACH_AMIGA:
		config_amiga();
		break;
#endif
#ifdef CONFIG_ATARI
	case MACH_ATARI:
		config_atari();
		break;
#endif
#ifdef CONFIG_MAC
	case MACH_MAC:
		config_mac();
		break;
#endif
#ifdef CONFIG_SUN3
	case MACH_SUN3:
		config_sun3();
		break;
#endif
#ifdef CONFIG_APOLLO
	case MACH_APOLLO:
		config_apollo();
		break;
#endif
#ifdef CONFIG_MVME147
	case MACH_MVME147:
		config_mvme147();
		break;
#endif
#ifdef CONFIG_MVME16x
	case MACH_MVME16x:
		config_mvme16x();
		break;
#endif
#ifdef CONFIG_BVME6000
	case MACH_BVME6000:
		config_bvme6000();
		break;
#endif
#ifdef CONFIG_HP300
	case MACH_HP300:
		config_hp300();
		break;
#endif
#ifdef CONFIG_Q40
	case MACH_Q40:
		config_q40();
		break;
#endif
#ifdef CONFIG_SUN3X
	case MACH_SUN3X:
		config_sun3x();
		break;
#endif
	default:
		panic("No configuration setup");
	}

	paging_init();

#ifndef CONFIG_SUN3
	for (i = 1; i < m68k_num_memory; i++)
		free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr,
				  m68k_memory[i].size);
#ifdef CONFIG_BLK_DEV_INITRD
	if (m68k_ramdisk.size) {
		reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)),
				     m68k_ramdisk.addr, m68k_ramdisk.size);
		initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
		initrd_end = initrd_start + m68k_ramdisk.size;
		printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
	}
#endif

#ifdef CONFIG_ATARI
	if (MACH_IS_ATARI)
		atari_stram_reserve_pages((void *)availmem);
#endif
#ifdef CONFIG_SUN3X
	if (MACH_IS_SUN3X) {
		dvma_init();
	}
#endif

#endif /* !CONFIG_SUN3 */

/* set ISA defs early as possible */
#if defined(CONFIG_ISA) && defined(MULTI_ISA)
#if defined(CONFIG_Q40)
	if (MACH_IS_Q40) {
		isa_type = Q40_ISA;
		isa_sex = 0;
	}
#elif defined(CONFIG_GG2)
	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(GG2_ISA)) {
		isa_type = GG2_ISA;
		isa_sex = 0;
	}
#elif defined(CONFIG_AMIGA_PCMCIA)
	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) {
		isa_type = AG_ISA;
		isa_sex = 1;
	}
#endif
#endif
}

static int show_cpuinfo(struct seq_file *m, void *v)
{
	const char *cpu, *mmu, *fpu;
	unsigned long clockfreq, clockfactor;

#define LOOP_CYCLES_68020	(8)
#define LOOP_CYCLES_68030	(8)
#define LOOP_CYCLES_68040	(3)
#define LOOP_CYCLES_68060	(1)

	if (CPU_IS_020) {
		cpu = "68020";
		clockfactor = LOOP_CYCLES_68020;
	} else if (CPU_IS_030) {
		cpu = "68030";
		clockfactor = LOOP_CYCLES_68030;
	} else if (CPU_IS_040) {
		cpu = "68040";
		clockfactor = LOOP_CYCLES_68040;
	} else if (CPU_IS_060) {
		cpu = "68060";
		clockfactor = LOOP_CYCLES_68060;
	} else {
		cpu = "680x0";
		clockfactor = 0;
	}

#ifdef CONFIG_M68KFPU_EMU_ONLY
	fpu = "none(soft float)";
#else
	if (m68k_fputype & FPU_68881)
		fpu = "68881";
	else if (m68k_fputype & FPU_68882)
		fpu = "68882";
	else if (m68k_fputype & FPU_68040)
		fpu = "68040";
	else if (m68k_fputype & FPU_68060)
		fpu = "68060";
	else if (m68k_fputype & FPU_SUNFPA)
		fpu = "Sun FPA";
	else
		fpu = "none";
#endif

	if (m68k_mmutype & MMU_68851)
		mmu = "68851";
	else if (m68k_mmutype & MMU_68030)
		mmu = "68030";
	else if (m68k_mmutype & MMU_68040)
		mmu = "68040";
	else if (m68k_mmutype & MMU_68060)
		mmu = "68060";
	else if (m68k_mmutype & MMU_SUN3)
		mmu = "Sun-3";
	else if (m68k_mmutype & MMU_APOLLO)
		mmu = "Apollo";
	else
		mmu = "unknown";

	clockfreq = loops_per_jiffy * HZ * clockfactor;

	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/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100,
		   loops_per_jiffy);
	return 0;
}

static void *c_start(struct seq_file *m, loff_t *pos)
{
	return *pos < 1 ? (void *)1 : NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
	++*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,
};

int get_hardware_list(char *buffer)
{
	int len = 0;
	char model[80];
	unsigned long mem;
	int i;

	if (mach_get_model)
		mach_get_model(model);
	else
		strcpy(model, "Unknown m68k");

	len += sprintf(buffer + len, "Model:\t\t%s\n", model);
	for (mem = 0, i = 0; i < m68k_num_memory; i++)
		mem += m68k_memory[i].size;
	len += sprintf(buffer + len, "System Memory:\t%ldK\n", mem >> 10);

	if (mach_get_hardware_list)
		len += mach_get_hardware_list(buffer + len);

	return len;
}

void check_bugs(void)
{
#ifndef CONFIG_M68KFPU_EMU
	if (m68k_fputype == 0) {
		printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, "
			"WHICH IS REQUIRED BY LINUX/M68K ***\n");
		printk(KERN_EMERG "Upgrade your hardware or join the FPU "
			"emulation project\n");
		panic("no FPU");
	}
#endif /* !CONFIG_M68KFPU_EMU */
}

#ifdef CONFIG_ADB
static int __init adb_probe_sync_enable (char *str) {
	extern int __adb_probe_sync;
	__adb_probe_sync = 1;
	return 1;
}

__setup("adb_sync", adb_probe_sync_enable);
#endif /* CONFIG_ADB */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/m68k/kernel/setup.c
	3	*
	4	* Copyright (C) 1995 Hamish Macdonald
	5	*/
	6
	7	/*
	8	* This file handles the architecture-dependent parts of system setup
	9	*/
	10
1da177e4 LT	11	#include <linux/kernel.h>
	12	#include <linux/mm.h>
	13	#include <linux/sched.h>
	14	#include <linux/delay.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/fs.h>
	17	#include <linux/console.h>
	18	#include <linux/genhd.h>
	19	#include <linux/errno.h>
	20	#include <linux/string.h>
	21	#include <linux/init.h>
	22	#include <linux/bootmem.h>
	23	#include <linux/seq_file.h>
	24	#include <linux/module.h>
	25	#include <linux/initrd.h>
	26
	27	#include <asm/bootinfo.h>
	28	#include <asm/setup.h>
	29	#include <asm/irq.h>
	30	#include <asm/io.h>
	31	#include <asm/machdep.h>
	32	#ifdef CONFIG_AMIGA
	33	#include <asm/amigahw.h>
	34	#endif
	35	#ifdef CONFIG_ATARI
	36	#include <asm/atarihw.h>
	37	#include <asm/atari_stram.h>
	38	#endif
	39	#ifdef CONFIG_SUN3X
	40	#include <asm/dvma.h>
	41	#endif
	42
	43	unsigned long m68k_machtype;
	44	unsigned long m68k_cputype;
2e811488 AV	45	EXPORT_SYMBOL(m68k_machtype);
2e811488 AV	46	EXPORT_SYMBOL(m68k_cputype);
1da177e4 LT	47	unsigned long m68k_fputype;
	48	unsigned long m68k_mmutype;
	49	#ifdef CONFIG_VME
	50	unsigned long vme_brdtype;
2e811488	51	EXPORT_SYMBOL(vme_brdtype);
1da177e4 LT	52	#endif
	53
	54	int m68k_is040or060;
2e811488	55	EXPORT_SYMBOL(m68k_is040or060);
1da177e4 LT	56
	57	extern int end;
	58	extern unsigned long availmem;
	59
	60	int m68k_num_memory;
88f8bb78	61	EXPORT_SYMBOL(m68k_num_memory);
1da177e4	62	int m68k_realnum_memory;
2e811488	63	EXPORT_SYMBOL(m68k_realnum_memory);
1da177e4	64	unsigned long m68k_memoffset;
2e811488	65	EXPORT_SYMBOL(m68k_memoffset);
1da177e4	66	struct mem_info m68k_memory[NUM_MEMINFO];
2e811488	67	EXPORT_SYMBOL(m68k_memory);
1da177e4	68
12d810c1	69	struct mem_info m68k_ramdisk;
1da177e4 LT	70
	71	static char m68k_command_line[CL_SIZE];
	72
40220c1a	73	void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL;
1da177e4 LT	74	/* machine dependent irq functions */
1da177e4 LT	75	void (*mach_init_IRQ) (void) __initdata = NULL;
1da177e4 LT	76	void (mach_get_model) (char model);
1da177e4 LT	77	int (mach_get_hardware_list) (char buffer);
1da177e4 LT	78	/* machine dependent timer functions */
	79	unsigned long (*mach_gettimeoffset) (void);
	80	int (mach_hwclk) (int, struct rtc_time);
2e811488	81	EXPORT_SYMBOL(mach_hwclk);
1da177e4 LT	82	int (*mach_set_clock_mmss) (unsigned long);
	83	unsigned int (*mach_get_ss)(void);
	84	int (mach_get_rtc_pll)(struct rtc_pll_info );
	85	int (mach_set_rtc_pll)(struct rtc_pll_info );
2e811488 AV	86	EXPORT_SYMBOL(mach_get_ss);
	87	EXPORT_SYMBOL(mach_get_rtc_pll);
	88	EXPORT_SYMBOL(mach_set_rtc_pll);
1da177e4 LT	89	void (*mach_reset)( void );
	90	void (*mach_halt)( void );
	91	void (*mach_power_off)( void );
	92	long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
1da177e4 LT	93	#ifdef CONFIG_HEARTBEAT
	94	void (*mach_heartbeat) (int);
	95	EXPORT_SYMBOL(mach_heartbeat);
	96	#endif
	97	#ifdef CONFIG_M68K_L2_CACHE
	98	void (*mach_l2_flush) (int);
	99	#endif
	100	#if defined(CONFIG_INPUT_M68K_BEEP) \|\| defined(CONFIG_INPUT_M68K_BEEP_MODULE)
	101	void (*mach_beep)(unsigned int, unsigned int);
2e811488	102	EXPORT_SYMBOL(mach_beep);
1da177e4 LT	103	#endif
	104	#if defined(CONFIG_ISA) && defined(MULTI_ISA)
	105	int isa_type;
	106	int isa_sex;
aa7e02fe AV	107	EXPORT_SYMBOL(isa_type);
aa7e02fe AV	108	EXPORT_SYMBOL(isa_sex);
1da177e4 LT	109	#endif
	110
	111	extern int amiga_parse_bootinfo(const struct bi_record *);
	112	extern int atari_parse_bootinfo(const struct bi_record *);
	113	extern int mac_parse_bootinfo(const struct bi_record *);
	114	extern int q40_parse_bootinfo(const struct bi_record *);
	115	extern int bvme6000_parse_bootinfo(const struct bi_record *);
	116	extern int mvme16x_parse_bootinfo(const struct bi_record *);
	117	extern int mvme147_parse_bootinfo(const struct bi_record *);
	118	extern int hp300_parse_bootinfo(const struct bi_record *);
	119
	120	extern void config_amiga(void);
	121	extern void config_atari(void);
	122	extern void config_mac(void);
	123	extern void config_sun3(void);
	124	extern void config_apollo(void);
	125	extern void config_mvme147(void);
	126	extern void config_mvme16x(void);
	127	extern void config_bvme6000(void);
	128	extern void config_hp300(void);
	129	extern void config_q40(void);
	130	extern void config_sun3x(void);
	131
1da177e4 LT	132	#define MASK_256K 0xfffc0000
	133
	134	extern void paging_init(void);
	135
	136	static void __init m68k_parse_bootinfo(const struct bi_record *record)
	137	{
6ff5801a RZ	138	while (record->tag != BI_LAST) {
	139	int unknown = 0;
	140	const unsigned long *data = record->data;
	141
	142	switch (record->tag) {
	143	case BI_MACHTYPE:
	144	case BI_CPUTYPE:
	145	case BI_FPUTYPE:
	146	case BI_MMUTYPE:
	147	/* Already set up by head.S */
	148	break;
	149
	150	case BI_MEMCHUNK:
	151	if (m68k_num_memory < NUM_MEMINFO) {
	152	m68k_memory[m68k_num_memory].addr = data[0];
	153	m68k_memory[m68k_num_memory].size = data[1];
	154	m68k_num_memory++;
	155	} else
	156	printk("m68k_parse_bootinfo: too many memory chunks\n");
	157	break;
	158
	159	case BI_RAMDISK:
	160	m68k_ramdisk.addr = data[0];
	161	m68k_ramdisk.size = data[1];
	162	break;
	163
	164	case BI_COMMAND_LINE:
	165	strlcpy(m68k_command_line, (const char *)data,
	166	sizeof(m68k_command_line));
	167	break;
	168
	169	default:
	170	if (MACH_IS_AMIGA)
	171	unknown = amiga_parse_bootinfo(record);
	172	else if (MACH_IS_ATARI)
	173	unknown = atari_parse_bootinfo(record);
	174	else if (MACH_IS_MAC)
	175	unknown = mac_parse_bootinfo(record);
	176	else if (MACH_IS_Q40)
	177	unknown = q40_parse_bootinfo(record);
	178	else if (MACH_IS_BVME6000)
	179	unknown = bvme6000_parse_bootinfo(record);
	180	else if (MACH_IS_MVME16x)
	181	unknown = mvme16x_parse_bootinfo(record);
	182	else if (MACH_IS_MVME147)
	183	unknown = mvme147_parse_bootinfo(record);
	184	else if (MACH_IS_HP300)
	185	unknown = hp300_parse_bootinfo(record);
	186	else
	187	unknown = 1;
	188	}
	189	if (unknown)
	190	printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n",
	191	record->tag);
	192	record = (struct bi_record *)((unsigned long)record +
	193	record->size);
1da177e4	194	}
1da177e4	195
6ff5801a	196	m68k_realnum_memory = m68k_num_memory;
1da177e4	197	#ifdef CONFIG_SINGLE_MEMORY_CHUNK
6ff5801a RZ	198	if (m68k_num_memory > 1) {
	199	printk("Ignoring last %i chunks of physical memory\n",
	200	(m68k_num_memory - 1));
	201	m68k_num_memory = 1;
	202	}
	203	m68k_memoffset = m68k_memory[0].addr-PAGE_OFFSET;
1da177e4 LT	204	#endif
	205	}
	206
	207	void __init setup_arch(char **cmdline_p)
	208	{
	209	extern int _etext, _edata, _end;
1da177e4	210	int i;
1da177e4 LT	211
	212	/* The bootinfo is located right after the kernel bss */
	213	m68k_parse_bootinfo((const struct bi_record *)&_end);
	214
	215	if (CPU_IS_040)
	216	m68k_is040or060 = 4;
	217	else if (CPU_IS_060)
	218	m68k_is040or060 = 6;
	219
	220	/* FIXME: m68k_fputype is passed in by Penguin booter, which can
	221	* be confused by software FPU emulation. BEWARE.
	222	* We should really do our own FPU check at startup.
	223	* [what do we do with buggy 68LC040s? if we have problems
	224	* with them, we should add a test to check_bugs() below] */
	225	#ifndef CONFIG_M68KFPU_EMU_ONLY
	226	/* clear the fpu if we have one */
	227	if (m68k_fputype & (FPU_68881\|FPU_68882\|FPU_68040\|FPU_68060)) {
	228	volatile int zero = 0;
6ff5801a	229	asm volatile ("frestore %0" : : "m" (zero));
1da177e4 LT	230	}
	231	#endif
	232
	233	if (CPU_IS_060) {
	234	u32 pcr;
	235
	236	asm (".chip 68060; movec %%pcr,%0; .chip 68k"
	237	: "=d" (pcr));
	238	if (((pcr >> 8) & 0xff) <= 5) {
	239	printk("Enabling workaround for errata I14\n");
	240	asm (".chip 68060; movec %0,%%pcr; .chip 68k"
	241	: : "d" (pcr \| 0x20));
	242	}
	243	}
	244
	245	init_mm.start_code = PAGE_OFFSET;
	246	init_mm.end_code = (unsigned long) &_etext;
	247	init_mm.end_data = (unsigned long) &_edata;
	248	init_mm.brk = (unsigned long) &_end;
	249
	250	*cmdline_p = m68k_command_line;
187959f3	251	memcpy(boot_command_line, *cmdline_p, CL_SIZE);
1da177e4	252
d6713b40	253	parse_early_param();
1da177e4	254
0c79358b AV	255	#ifdef CONFIG_DUMMY_CONSOLE
	256	conswitchp = &dummy_con;
	257	#endif
	258
1da177e4 LT	259	switch (m68k_machtype) {
1da177e4 LT	260	#ifdef CONFIG_AMIGA
6ff5801a	261	case MACH_AMIGA:
1da177e4 LT	262	config_amiga();
	263	break;
	264	#endif
	265	#ifdef CONFIG_ATARI
6ff5801a	266	case MACH_ATARI:
1da177e4 LT	267	config_atari();
	268	break;
	269	#endif
	270	#ifdef CONFIG_MAC
6ff5801a	271	case MACH_MAC:
1da177e4 LT	272	config_mac();
	273	break;
	274	#endif
	275	#ifdef CONFIG_SUN3
6ff5801a	276	case MACH_SUN3:
1da177e4 LT	277	config_sun3();
	278	break;
	279	#endif
	280	#ifdef CONFIG_APOLLO
6ff5801a	281	case MACH_APOLLO:
1da177e4 LT	282	config_apollo();
	283	break;
	284	#endif
	285	#ifdef CONFIG_MVME147
6ff5801a	286	case MACH_MVME147:
1da177e4 LT	287	config_mvme147();
	288	break;
	289	#endif
	290	#ifdef CONFIG_MVME16x
6ff5801a	291	case MACH_MVME16x:
1da177e4 LT	292	config_mvme16x();
	293	break;
	294	#endif
	295	#ifdef CONFIG_BVME6000
6ff5801a	296	case MACH_BVME6000:
1da177e4 LT	297	config_bvme6000();
	298	break;
	299	#endif
	300	#ifdef CONFIG_HP300
6ff5801a	301	case MACH_HP300:
1da177e4 LT	302	config_hp300();
	303	break;
	304	#endif
	305	#ifdef CONFIG_Q40
6ff5801a RZ	306	case MACH_Q40:
6ff5801a RZ	307	config_q40();
1da177e4 LT	308	break;
	309	#endif
	310	#ifdef CONFIG_SUN3X
6ff5801a	311	case MACH_SUN3X:
1da177e4 LT	312	config_sun3x();
	313	break;
	314	#endif
6ff5801a RZ	315	default:
6ff5801a RZ	316	panic("No configuration setup");
1da177e4 LT	317	}
1da177e4 LT	318
12d810c1	319	paging_init();
1da177e4	320
12d810c1 RZ	321	#ifndef CONFIG_SUN3
	322	for (i = 1; i < m68k_num_memory; i++)
	323	free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr,
	324	m68k_memory[i].size);
1da177e4 LT	325	#ifdef CONFIG_BLK_DEV_INITRD
1da177e4 LT	326	if (m68k_ramdisk.size) {
12d810c1 RZ	327	reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)),
12d810c1 RZ	328	m68k_ramdisk.addr, m68k_ramdisk.size);
1da177e4 LT	329	initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
1da177e4 LT	330	initrd_end = initrd_start + m68k_ramdisk.size;
6ff5801a	331	printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
1da177e4 LT	332	}
	333	#endif
	334
	335	#ifdef CONFIG_ATARI
	336	if (MACH_IS_ATARI)
	337	atari_stram_reserve_pages((void *)availmem);
	338	#endif
	339	#ifdef CONFIG_SUN3X
	340	if (MACH_IS_SUN3X) {
	341	dvma_init();
	342	}
	343	#endif
	344
	345	#endif /* !CONFIG_SUN3 */
	346
1da177e4 LT	347	/* set ISA defs early as possible */
	348	#if defined(CONFIG_ISA) && defined(MULTI_ISA)
	349	#if defined(CONFIG_Q40)
	350	if (MACH_IS_Q40) {
6ff5801a RZ	351	isa_type = Q40_ISA;
6ff5801a RZ	352	isa_sex = 0;
1da177e4 LT	353	}
1da177e4 LT	354	#elif defined(CONFIG_GG2)
6ff5801a RZ	355	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(GG2_ISA)) {
	356	isa_type = GG2_ISA;
	357	isa_sex = 0;
1da177e4 LT	358	}
1da177e4 LT	359	#elif defined(CONFIG_AMIGA_PCMCIA)
6ff5801a RZ	360	if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) {
	361	isa_type = AG_ISA;
	362	isa_sex = 1;
1da177e4 LT	363	}
	364	#endif
	365	#endif
	366	}
	367
	368	static int show_cpuinfo(struct seq_file m, void v)
	369	{
6ff5801a RZ	370	const char cpu, mmu, *fpu;
6ff5801a RZ	371	unsigned long clockfreq, clockfactor;
1da177e4 LT	372
	373	#define LOOP_CYCLES_68020 (8)
	374	#define LOOP_CYCLES_68030 (8)
	375	#define LOOP_CYCLES_68040 (3)
	376	#define LOOP_CYCLES_68060 (1)
	377
6ff5801a RZ	378	if (CPU_IS_020) {
	379	cpu = "68020";
	380	clockfactor = LOOP_CYCLES_68020;
	381	} else if (CPU_IS_030) {
	382	cpu = "68030";
	383	clockfactor = LOOP_CYCLES_68030;
	384	} else if (CPU_IS_040) {
	385	cpu = "68040";
	386	clockfactor = LOOP_CYCLES_68040;
	387	} else if (CPU_IS_060) {
	388	cpu = "68060";
	389	clockfactor = LOOP_CYCLES_68060;
	390	} else {
	391	cpu = "680x0";
	392	clockfactor = 0;
	393	}
1da177e4 LT	394
1da177e4 LT	395	#ifdef CONFIG_M68KFPU_EMU_ONLY
6ff5801a	396	fpu = "none(soft float)";
1da177e4	397	#else
6ff5801a RZ	398	if (m68k_fputype & FPU_68881)
	399	fpu = "68881";
	400	else if (m68k_fputype & FPU_68882)
	401	fpu = "68882";
	402	else if (m68k_fputype & FPU_68040)
	403	fpu = "68040";
	404	else if (m68k_fputype & FPU_68060)
	405	fpu = "68060";
	406	else if (m68k_fputype & FPU_SUNFPA)
	407	fpu = "Sun FPA";
	408	else
	409	fpu = "none";
1da177e4 LT	410	#endif
1da177e4 LT	411
6ff5801a RZ	412	if (m68k_mmutype & MMU_68851)
	413	mmu = "68851";
	414	else if (m68k_mmutype & MMU_68030)
	415	mmu = "68030";
	416	else if (m68k_mmutype & MMU_68040)
	417	mmu = "68040";
	418	else if (m68k_mmutype & MMU_68060)
	419	mmu = "68060";
	420	else if (m68k_mmutype & MMU_SUN3)
	421	mmu = "Sun-3";
	422	else if (m68k_mmutype & MMU_APOLLO)
	423	mmu = "Apollo";
	424	else
	425	mmu = "unknown";
	426
	427	clockfreq = loops_per_jiffy * HZ * clockfactor;
	428
	429	seq_printf(m, "CPU:\t\t%s\n"
1da177e4 LT	430	"MMU:\t\t%s\n"
	431	"FPU:\t\t%s\n"
	432	"Clocking:\t%lu.%1luMHz\n"
	433	"BogoMips:\t%lu.%02lu\n"
	434	"Calibration:\t%lu loops\n",
	435	cpu, mmu, fpu,
	436	clockfreq/1000000,(clockfreq/100000)%10,
	437	loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100,
	438	loops_per_jiffy);
6ff5801a	439	return 0;
1da177e4 LT	440	}
	441
	442	static void c_start(struct seq_file m, loff_t *pos)
	443	{
	444	return pos < 1 ? (void )1 : NULL;
	445	}
	446	static void c_next(struct seq_file m, void v, loff_t pos)
	447	{
	448	++*pos;
	449	return NULL;
	450	}
	451	static void c_stop(struct seq_file m, void v)
	452	{
	453	}
	454	struct seq_operations cpuinfo_op = {
6ff5801a RZ	455	.start = c_start,
	456	.next = c_next,
	457	.stop = c_stop,
	458	.show = show_cpuinfo,
1da177e4 LT	459	};
	460
	461	int get_hardware_list(char *buffer)
	462	{
6ff5801a RZ	463	int len = 0;
	464	char model[80];
	465	unsigned long mem;
	466	int i;
1da177e4	467
6ff5801a RZ	468	if (mach_get_model)
	469	mach_get_model(model);
	470	else
	471	strcpy(model, "Unknown m68k");
1da177e4	472
6ff5801a RZ	473	len += sprintf(buffer + len, "Model:\t\t%s\n", model);
	474	for (mem = 0, i = 0; i < m68k_num_memory; i++)
	475	mem += m68k_memory[i].size;
	476	len += sprintf(buffer + len, "System Memory:\t%ldK\n", mem >> 10);
1da177e4	477
6ff5801a RZ	478	if (mach_get_hardware_list)
6ff5801a RZ	479	len += mach_get_hardware_list(buffer + len);
1da177e4	480
6ff5801a	481	return len;
1da177e4 LT	482	}
1da177e4 LT	483
1da177e4 LT	484	void check_bugs(void)
	485	{
	486	#ifndef CONFIG_M68KFPU_EMU
	487	if (m68k_fputype == 0) {
6ff5801a RZ	488	printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, "
	489	"WHICH IS REQUIRED BY LINUX/M68K ***\n");
	490	printk(KERN_EMERG "Upgrade your hardware or join the FPU "
	491	"emulation project\n");
	492	panic("no FPU");
1da177e4 LT	493	}
	494	#endif /* !CONFIG_M68KFPU_EMU */
	495	}
d95fd5fc FT	496
	497	#ifdef CONFIG_ADB
	498	static int __init adb_probe_sync_enable (char *str) {
	499	extern int __adb_probe_sync;
	500	__adb_probe_sync = 1;
	501	return 1;
	502	}
	503
	504	__setup("adb_sync", adb_probe_sync_enable);
	505	#endif /* CONFIG_ADB */