[mirror_ubuntu-bionic-kernel.git] / arch / parisc / kernel / setup.c

/*
 *    Initial setup-routines for HP 9000 based hardware.
 *
 *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
 *    Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
 *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
 *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
 *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
 *    Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net>
 *
 *    Initial PA-RISC Version: 04-23-1999 by Helge Deller
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2, or (at your option)
 *    any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <linux/kernel.h>
#include <linux/initrd.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/seq_file.h>
#define PCI_DEBUG
#include <linux/pci.h>
#undef PCI_DEBUG
#include <linux/proc_fs.h>
#include <linux/export.h>

#include <asm/processor.h>
#include <asm/sections.h>
#include <asm/pdc.h>
#include <asm/led.h>
#include <asm/machdep.h>	/* for pa7300lc_init() proto */
#include <asm/pdc_chassis.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/unwind.h>

static char __initdata command_line[COMMAND_LINE_SIZE];

/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
struct proc_dir_entry * proc_mckinley_root __read_mostly = NULL;

#if !defined(CONFIG_PA20) && (defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA))
int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
EXPORT_SYMBOL(parisc_bus_is_phys);
#endif

void __init setup_cmdline(char **cmdline_p)
{
	extern unsigned int boot_args[];

	/* Collect stuff passed in from the boot loader */

	/* boot_args[0] is free-mem start, boot_args[1] is ptr to command line */
	if (boot_args[0] < 64) {
		/* called from hpux boot loader */
		boot_command_line[0] = '\0';
	} else {
		strlcpy(boot_command_line, (char *)__va(boot_args[1]),
			COMMAND_LINE_SIZE);

#ifdef CONFIG_BLK_DEV_INITRD
		if (boot_args[2] != 0) /* did palo pass us a ramdisk? */
		{
		    initrd_start = (unsigned long)__va(boot_args[2]);
		    initrd_end = (unsigned long)__va(boot_args[3]);
		}
#endif
	}

	strcpy(command_line, boot_command_line);
	*cmdline_p = command_line;
}

#ifdef CONFIG_PA11
void __init dma_ops_init(void)
{
	switch (boot_cpu_data.cpu_type) {
	case pcx:
		/*
		 * We've got way too many dependencies on 1.1 semantics
		 * to support 1.0 boxes at this point.
		 */
		panic(	"PA-RISC Linux currently only supports machines that conform to\n"
			"the PA-RISC 1.1 or 2.0 architecture specification.\n");

	case pcxs:
	case pcxt:
		hppa_dma_ops = &pcx_dma_ops;
		break;
	case pcxl2:
		pa7300lc_init();
	case pcxl: /* falls through */
		hppa_dma_ops = &pcxl_dma_ops;
		break;
	default:
		break;
	}
}
#endif

extern int init_per_cpu(int cpuid);
extern void collect_boot_cpu_data(void);

void __init setup_arch(char **cmdline_p)
{
#ifdef CONFIG_64BIT
	extern int parisc_narrow_firmware;
#endif
	unwind_init();

	init_per_cpu(smp_processor_id());	/* Set Modes & Enable FP */

#ifdef CONFIG_64BIT
	printk(KERN_INFO "The 64-bit Kernel has started...\n");
#else
	printk(KERN_INFO "The 32-bit Kernel has started...\n");
#endif

	printk(KERN_INFO "Kernel default page size is %d KB. Huge pages ",
		(int)(PAGE_SIZE / 1024));
#ifdef CONFIG_HUGETLB_PAGE
	printk(KERN_CONT "enabled with %d MB physical and %d MB virtual size",
		 1 << (REAL_HPAGE_SHIFT - 20), 1 << (HPAGE_SHIFT - 20));
#else
	printk(KERN_CONT "disabled");
#endif
	printk(KERN_CONT ".\n");

	/*
	 * Check if initial kernel page mappings are sufficient.
	 * panic early if not, else we may access kernel functions
	 * and variables which can't be reached.
	 */
	if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE)
		panic("KERNEL_INITIAL_ORDER too small!");

	pdc_console_init();

#ifdef CONFIG_64BIT
	if(parisc_narrow_firmware) {
		printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n");
	}
#endif
	setup_pdc();
	setup_cmdline(cmdline_p);
	collect_boot_cpu_data();
	do_memory_inventory();  /* probe for physical memory */
	parisc_cache_init();
	paging_init();

#ifdef CONFIG_CHASSIS_LCD_LED
	/* initialize the LCD/LED after boot_cpu_data is available ! */
	led_init();		/* LCD/LED initialization */
#endif

#ifdef CONFIG_PA11
	dma_ops_init();
#endif

#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
	conswitchp = &dummy_con;	/* we use do_take_over_console() later ! */
#endif

}

/*
 * Display CPU info for all CPUs.
 * for parisc this is in processor.c
 */
extern int show_cpuinfo (struct seq_file *m, void *v);

static void *
c_start (struct seq_file *m, loff_t *pos)
{
    	/* Looks like the caller will call repeatedly until we return
	 * 0, signaling EOF perhaps.  This could be used to sequence
	 * through CPUs for example.  Since we print all cpu info in our
	 * show_cpuinfo() disregarding 'pos' (which I assume is 'v' above)
	 * we only allow for one "position".  */
	return ((long)*pos < 1) ? (void *)1 : 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
};

static void __init parisc_proc_mkdir(void)
{
	/*
	** Can't call proc_mkdir() until after proc_root_init() has been
	** called by start_kernel(). In other words, this code can't
	** live in arch/.../setup.c because start_parisc() calls
	** start_kernel().
	*/
	switch (boot_cpu_data.cpu_type) {
	case pcxl:
	case pcxl2:
		if (NULL == proc_gsc_root)
		{
			proc_gsc_root = proc_mkdir("bus/gsc", NULL);
		}
		break;
        case pcxt_:
        case pcxu:
        case pcxu_:
        case pcxw:
        case pcxw_:
        case pcxw2:
                if (NULL == proc_runway_root)
                {
                        proc_runway_root = proc_mkdir("bus/runway", NULL);
                }
                break;
	case mako:
	case mako2:
                if (NULL == proc_mckinley_root)
                {
                        proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
                }
                break;
	default:
		/* FIXME: this was added to prevent the compiler 
		 * complaining about missing pcx, pcxs and pcxt
		 * I'm assuming they have neither gsc nor runway */
		break;
	}
}

static struct resource central_bus = {
	.name	= "Central Bus",
	.start	= F_EXTEND(0xfff80000),
	.end    = F_EXTEND(0xfffaffff),
	.flags	= IORESOURCE_MEM,
};

static struct resource local_broadcast = {
	.name	= "Local Broadcast",
	.start	= F_EXTEND(0xfffb0000),
	.end	= F_EXTEND(0xfffdffff),
	.flags	= IORESOURCE_MEM,
};

static struct resource global_broadcast = {
	.name	= "Global Broadcast",
	.start	= F_EXTEND(0xfffe0000),
	.end	= F_EXTEND(0xffffffff),
	.flags	= IORESOURCE_MEM,
};

static int __init parisc_init_resources(void)
{
	int result;

	result = request_resource(&iomem_resource, &central_bus);
	if (result < 0) {
		printk(KERN_ERR 
		       "%s: failed to claim %s address space!\n", 
		       __FILE__, central_bus.name);
		return result;
	}

	result = request_resource(&iomem_resource, &local_broadcast);
	if (result < 0) {
		printk(KERN_ERR 
		       "%s: failed to claim %saddress space!\n", 
		       __FILE__, local_broadcast.name);
		return result;
	}

	result = request_resource(&iomem_resource, &global_broadcast);
	if (result < 0) {
		printk(KERN_ERR 
		       "%s: failed to claim %s address space!\n", 
		       __FILE__, global_broadcast.name);
		return result;
	}

	return 0;
}

extern void gsc_init(void);
extern void processor_init(void);
extern void ccio_init(void);
extern void hppb_init(void);
extern void dino_init(void);
extern void iosapic_init(void);
extern void lba_init(void);
extern void sba_init(void);
extern void eisa_init(void);

static int __init parisc_init(void)
{
	u32 osid = (OS_ID_LINUX << 16);

	parisc_proc_mkdir();
	parisc_init_resources();
	do_device_inventory();                  /* probe for hardware */

	parisc_pdc_chassis_init();
	
	/* set up a new led state on systems shipped LED State panel */
	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);

	/* tell PDC we're Linux. Nevermind failure. */
	pdc_stable_write(0x40, &osid, sizeof(osid));
	
	/* start with known state */
	flush_cache_all_local();
	flush_tlb_all_local(NULL);

	processor_init();
#ifdef CONFIG_SMP
	pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n",
		num_online_cpus(), num_present_cpus(),
#else
	pr_info("CPU(s): 1 x %s at %d.%06d MHz\n",
#endif
			boot_cpu_data.cpu_name,
			boot_cpu_data.cpu_hz / 1000000,
			boot_cpu_data.cpu_hz % 1000000	);

	parisc_setup_cache_timing();

	/* These are in a non-obvious order, will fix when we have an iotree */
#if defined(CONFIG_IOSAPIC)
	iosapic_init();
#endif
#if defined(CONFIG_IOMMU_SBA)
	sba_init();
#endif
#if defined(CONFIG_PCI_LBA)
	lba_init();
#endif

	/* CCIO before any potential subdevices */
#if defined(CONFIG_IOMMU_CCIO)
	ccio_init();
#endif

	/*
	 * Need to register Asp & Wax before the EISA adapters for the IRQ
	 * regions.  EISA must come before PCI to be sure it gets IRQ region
	 * 0.
	 */
#if defined(CONFIG_GSC_LASI) || defined(CONFIG_GSC_WAX)
	gsc_init();
#endif
#ifdef CONFIG_EISA
	eisa_init();
#endif

#if defined(CONFIG_HPPB)
	hppb_init();
#endif

#if defined(CONFIG_GSC_DINO)
	dino_init();
#endif

#ifdef CONFIG_CHASSIS_LCD_LED
	register_led_regions();	/* register LED port info in procfs */
#endif

	return 0;
}
arch_initcall(parisc_init);

void start_parisc(void)
{
	extern void start_kernel(void);
	extern void early_trap_init(void);

	int ret, cpunum;
	struct pdc_coproc_cfg coproc_cfg;

	cpunum = smp_processor_id();

	set_firmware_width_unlocked();

	ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
	if (ret >= 0 && coproc_cfg.ccr_functional) {
		mtctl(coproc_cfg.ccr_functional, 10);

		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;

		asm volatile ("fstd	%fr0,8(%sp)");
	} else {
		panic("must have an fpu to boot linux");
	}

	early_trap_init(); /* initialize checksum of fault_vector */

	start_kernel();
	// not reached
}
Commit	Line	Data
071327ec	1	/*
1da177e4 LT	2	* Initial setup-routines for HP 9000 based hardware.
	3	*
	4	* Copyright (C) 1991, 1992, 1995 Linus Torvalds
	5	* Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
	6	* Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
	7	* Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
	8	* Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
	9	* Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net>
	10	*
	11	* Initial PA-RISC Version: 04-23-1999 by Helge Deller
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2, or (at your option)
	16	* any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
	23	* You should have received a copy of the GNU General Public License
	24	* along with this program; if not, write to the Free Software
	25	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	26	*
	27	*/
	28
1da177e4 LT	29	#include <linux/kernel.h>
	30	#include <linux/initrd.h>
	31	#include <linux/init.h>
	32	#include <linux/console.h>
	33	#include <linux/seq_file.h>
	34	#define PCI_DEBUG
	35	#include <linux/pci.h>
	36	#undef PCI_DEBUG
	37	#include <linux/proc_fs.h>
a87df54e	38	#include <linux/export.h>
1da177e4 LT	39
1da177e4 LT	40	#include <asm/processor.h>
690d097c	41	#include <asm/sections.h>
1da177e4 LT	42	#include <asm/pdc.h>
	43	#include <asm/led.h>
	44	#include <asm/machdep.h> /* for pa7300lc_init() proto */
	45	#include <asm/pdc_chassis.h>
	46	#include <asm/io.h>
	47	#include <asm/setup.h>
f0514ae3	48	#include <asm/unwind.h>
1da177e4	49
01da41b8	50	static char __initdata command_line[COMMAND_LINE_SIZE];
1da177e4 LT	51
1da177e4 LT	52	/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway\|gsc} */
8039de10 HD	53	struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
	54	struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
	55	struct proc_dir_entry * proc_mckinley_root __read_mostly = NULL;
1da177e4 LT	56
1da177e4 LT	57	#if !defined(CONFIG_PA20) && (defined(CONFIG_IOMMU_CCIO) \|\| defined(CONFIG_IOMMU_SBA))
8039de10	58	int parisc_bus_is_phys __read_mostly = 1; /* Assume no IOMMU is present */
1da177e4 LT	59	EXPORT_SYMBOL(parisc_bus_is_phys);
	60	#endif
	61
1da177e4 LT	62	void __init setup_cmdline(char **cmdline_p)
	63	{
	64	extern unsigned int boot_args[];
	65
	66	/* Collect stuff passed in from the boot loader */
	67
	68	/* boot_args[0] is free-mem start, boot_args[1] is ptr to command line */
	69	if (boot_args[0] < 64) {
	70	/* called from hpux boot loader */
668f9931	71	boot_command_line[0] = '\0';
1da177e4	72	} else {
ea99b1ad CG	73	strlcpy(boot_command_line, (char *)__va(boot_args[1]),
ea99b1ad CG	74	COMMAND_LINE_SIZE);
1da177e4 LT	75
	76	#ifdef CONFIG_BLK_DEV_INITRD
	77	if (boot_args[2] != 0) /* did palo pass us a ramdisk? */
	78	{
	79	initrd_start = (unsigned long)__va(boot_args[2]);
	80	initrd_end = (unsigned long)__va(boot_args[3]);
	81	}
	82	#endif
	83	}
	84
668f9931	85	strcpy(command_line, boot_command_line);
1da177e4 LT	86	*cmdline_p = command_line;
	87	}
	88
	89	#ifdef CONFIG_PA11
	90	void __init dma_ops_init(void)
	91	{
	92	switch (boot_cpu_data.cpu_type) {
	93	case pcx:
	94	/*
	95	* We've got way too many dependencies on 1.1 semantics
	96	* to support 1.0 boxes at this point.
	97	*/
	98	panic( "PA-RISC Linux currently only supports machines that conform to\n"
	99	"the PA-RISC 1.1 or 2.0 architecture specification.\n");
	100
	101	case pcxs:
	102	case pcxt:
	103	hppa_dma_ops = &pcx_dma_ops;
	104	break;
	105	case pcxl2:
	106	pa7300lc_init();
	107	case pcxl: /* falls through */
	108	hppa_dma_ops = &pcxl_dma_ops;
	109	break;
	110	default:
	111	break;
	112	}
	113	}
	114	#endif
	115
	116	extern int init_per_cpu(int cpuid);
	117	extern void collect_boot_cpu_data(void);
	118
	119	void __init setup_arch(char **cmdline_p)
	120	{
a8f44e38	121	#ifdef CONFIG_64BIT
1da177e4 LT	122	extern int parisc_narrow_firmware;
1da177e4 LT	123	#endif
f0514ae3	124	unwind_init();
1da177e4 LT	125
	126	init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */
	127
a8f44e38	128	#ifdef CONFIG_64BIT
1da177e4 LT	129	printk(KERN_INFO "The 64-bit Kernel has started...\n");
	130	#else
	131	printk(KERN_INFO "The 32-bit Kernel has started...\n");
	132	#endif
	133
736d2169 HD	134	printk(KERN_INFO "Kernel default page size is %d KB. Huge pages ",
	135	(int)(PAGE_SIZE / 1024));
	136	#ifdef CONFIG_HUGETLB_PAGE
	137	printk(KERN_CONT "enabled with %d MB physical and %d MB virtual size",
	138	1 << (REAL_HPAGE_SHIFT - 20), 1 << (HPAGE_SHIFT - 20));
	139	#else
	140	printk(KERN_CONT "disabled");
	141	#endif
	142	printk(KERN_CONT ".\n");
	143
690d097c HD	144	/*
	145	* Check if initial kernel page mappings are sufficient.
	146	* panic early if not, else we may access kernel functions
	147	* and variables which can't be reached.
	148	*/
	149	if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE)
	150	panic("KERNEL_INITIAL_ORDER too small!");
6a45716a	151
1da177e4 LT	152	pdc_console_init();
1da177e4 LT	153
a8f44e38	154	#ifdef CONFIG_64BIT
1da177e4 LT	155	if(parisc_narrow_firmware) {
	156	printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n");
	157	}
	158	#endif
	159	setup_pdc();
	160	setup_cmdline(cmdline_p);
	161	collect_boot_cpu_data();
	162	do_memory_inventory(); /* probe for physical memory */
	163	parisc_cache_init();
	164	paging_init();
	165
	166	#ifdef CONFIG_CHASSIS_LCD_LED
	167	/* initialize the LCD/LED after boot_cpu_data is available ! */
	168	led_init(); /* LCD/LED initialization */
	169	#endif
	170
	171	#ifdef CONFIG_PA11
	172	dma_ops_init();
	173	#endif
	174
	175	#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
155957f5	176	conswitchp = &dummy_con; /* we use do_take_over_console() later ! */
1da177e4 LT	177	#endif
	178
	179	}
	180
	181	/*
7022672e	182	* Display CPU info for all CPUs.
1da177e4 LT	183	* for parisc this is in processor.c
	184	*/
	185	extern int show_cpuinfo (struct seq_file m, void v);
	186
	187	static void *
	188	c_start (struct seq_file m, loff_t pos)
	189	{
	190	/* Looks like the caller will call repeatedly until we return
	191	* 0, signaling EOF perhaps. This could be used to sequence
	192	* through CPUs for example. Since we print all cpu info in our
	193	* show_cpuinfo() disregarding 'pos' (which I assume is 'v' above)
	194	* we only allow for one "position". */
	195	return ((long)pos < 1) ? (void )1 : NULL;
	196	}
	197
	198	static void *
	199	c_next (struct seq_file m, void v, loff_t *pos)
	200	{
	201	++*pos;
	202	return c_start(m, pos);
	203	}
	204
	205	static void
	206	c_stop (struct seq_file m, void v)
	207	{
	208	}
	209
03a44825	210	const struct seq_operations cpuinfo_op = {
1da177e4 LT	211	.start = c_start,
	212	.next = c_next,
	213	.stop = c_stop,
	214	.show = show_cpuinfo
	215	};
	216
	217	static void __init parisc_proc_mkdir(void)
	218	{
	219	/*
	220	** Can't call proc_mkdir() until after proc_root_init() has been
	221	** called by start_kernel(). In other words, this code can't
	222	** live in arch/.../setup.c because start_parisc() calls
	223	** start_kernel().
	224	*/
	225	switch (boot_cpu_data.cpu_type) {
	226	case pcxl:
	227	case pcxl2:
	228	if (NULL == proc_gsc_root)
	229	{
	230	proc_gsc_root = proc_mkdir("bus/gsc", NULL);
	231	}
	232	break;
	233	case pcxt_:
	234	case pcxu:
	235	case pcxu_:
	236	case pcxw:
	237	case pcxw_:
	238	case pcxw2:
	239	if (NULL == proc_runway_root)
	240	{
	241	proc_runway_root = proc_mkdir("bus/runway", NULL);
	242	}
	243	break;
	244	case mako:
2cbd42db	245	case mako2:
1da177e4 LT	246	if (NULL == proc_mckinley_root)
	247	{
	248	proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
	249	}
	250	break;
	251	default:
	252	/* FIXME: this was added to prevent the compiler
	253	* complaining about missing pcx, pcxs and pcxt
	254	* I'm assuming they have neither gsc nor runway */
	255	break;
	256	}
	257	}
	258
	259	static struct resource central_bus = {
	260	.name = "Central Bus",
	261	.start = F_EXTEND(0xfff80000),
	262	.end = F_EXTEND(0xfffaffff),
	263	.flags = IORESOURCE_MEM,
	264	};
	265
	266	static struct resource local_broadcast = {
	267	.name = "Local Broadcast",
	268	.start = F_EXTEND(0xfffb0000),
	269	.end = F_EXTEND(0xfffdffff),
	270	.flags = IORESOURCE_MEM,
	271	};
	272
	273	static struct resource global_broadcast = {
	274	.name = "Global Broadcast",
	275	.start = F_EXTEND(0xfffe0000),
	276	.end = F_EXTEND(0xffffffff),
	277	.flags = IORESOURCE_MEM,
	278	};
	279
	280	static int __init parisc_init_resources(void)
	281	{
	282	int result;
	283
	284	result = request_resource(&iomem_resource, &central_bus);
	285	if (result < 0) {
	286	printk(KERN_ERR
	287	"%s: failed to claim %s address space!\n",
	288	__FILE__, central_bus.name);
	289	return result;
	290	}
	291
	292	result = request_resource(&iomem_resource, &local_broadcast);
	293	if (result < 0) {
	294	printk(KERN_ERR
	295	"%s: failed to claim %saddress space!\n",
	296	__FILE__, local_broadcast.name);
	297	return result;
	298	}
	299
	300	result = request_resource(&iomem_resource, &global_broadcast);
	301	if (result < 0) {
	302	printk(KERN_ERR
	303	"%s: failed to claim %s address space!\n",
	304	__FILE__, global_broadcast.name);
	305	return result;
	306	}
	307
	308	return 0;
	309	}
310
311	extern void gsc_init(void);
312	extern void processor_init(void);
313	extern void ccio_init(void);
314	extern void hppb_init(void);
315	extern void dino_init(void);
316	extern void iosapic_init(void);
317	extern void lba_init(void);
318	extern void sba_init(void);
319	extern void eisa_init(void);
320
321	static int __init parisc_init(void)
322	{
ec1fdc24	323	u32 osid = (OS_ID_LINUX << 16);
3f9edb53	324
1da177e4 LT	325	parisc_proc_mkdir();
	326	parisc_init_resources();
	327	do_device_inventory(); /* probe for hardware */
	328
	329	parisc_pdc_chassis_init();
	330
	331	/* set up a new led state on systems shipped LED State panel */
	332	pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);
3f9edb53 TV	333
	334	/* tell PDC we're Linux. Nevermind failure. */
	335	pdc_stable_write(0x40, &osid, sizeof(osid));
1da177e4	336
741dc7bf JDA	337	/* start with known state */
	338	flush_cache_all_local();
	339	flush_tlb_all_local(NULL);
	340
1da177e4	341	processor_init();
3a7452b4 HD	342	#ifdef CONFIG_SMP
	343	pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n",
	344	num_online_cpus(), num_present_cpus(),
	345	#else
	346	pr_info("CPU(s): 1 x %s at %d.%06d MHz\n",
	347	#endif
1da177e4 LT	348	boot_cpu_data.cpu_name,
	349	boot_cpu_data.cpu_hz / 1000000,
	350	boot_cpu_data.cpu_hz % 1000000 );
	351
	352	parisc_setup_cache_timing();
	353
	354	/* These are in a non-obvious order, will fix when we have an iotree */
	355	#if defined(CONFIG_IOSAPIC)
	356	iosapic_init();
	357	#endif
	358	#if defined(CONFIG_IOMMU_SBA)
	359	sba_init();
	360	#endif
	361	#if defined(CONFIG_PCI_LBA)
	362	lba_init();
	363	#endif
	364
	365	/* CCIO before any potential subdevices */
	366	#if defined(CONFIG_IOMMU_CCIO)
	367	ccio_init();
	368	#endif
	369
	370	/*
	371	* Need to register Asp & Wax before the EISA adapters for the IRQ
	372	* regions. EISA must come before PCI to be sure it gets IRQ region
	373	* 0.
	374	*/
	375	#if defined(CONFIG_GSC_LASI) \|\| defined(CONFIG_GSC_WAX)
	376	gsc_init();
	377	#endif
	378	#ifdef CONFIG_EISA
	379	eisa_init();
	380	#endif
	381
	382	#if defined(CONFIG_HPPB)
	383	hppb_init();
	384	#endif
	385
	386	#if defined(CONFIG_GSC_DINO)
	387	dino_init();
	388	#endif
	389
	390	#ifdef CONFIG_CHASSIS_LCD_LED
	391	register_led_regions(); /* register LED port info in procfs */
	392	#endif
	393
	394	return 0;
	395	}
1da177e4 LT	396	arch_initcall(parisc_init);
1da177e4 LT	397
089d5528 KM	398	void start_parisc(void)
	399	{
	400	extern void start_kernel(void);
4182d0cd	401	extern void early_trap_init(void);
089d5528 KM	402
	403	int ret, cpunum;
	404	struct pdc_coproc_cfg coproc_cfg;
	405
	406	cpunum = smp_processor_id();
	407
	408	set_firmware_width_unlocked();
	409
	410	ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
	411	if (ret >= 0 && coproc_cfg.ccr_functional) {
	412	mtctl(coproc_cfg.ccr_functional, 10);
	413
ef017beb HD	414	per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
ef017beb HD	415	per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
089d5528 KM	416
	417	asm volatile ("fstd %fr0,8(%sp)");
	418	} else {
	419	panic("must have an fpu to boot linux");
	420	}
	421
4182d0cd HD	422	early_trap_init(); /* initialize checksum of fault_vector */
4182d0cd HD	423
089d5528 KM	424	start_kernel();
	425	// not reached
	426	}