[deliverable/linux.git] / arch / sparc / kernel / of_device_32.c

#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/init.h>
#include <linux/mod_devicetable.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/irq.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <asm/leon.h>
#include <asm/leon_amba.h>

#include "of_device_common.h"
#include "irq.h"

/*
 * PCI bus specific translator
 */

static int of_bus_pci_match(struct device_node *np)
{
	if (!strcmp(np->type, "pci") || !strcmp(np->type, "pciex")) {
		/* Do not do PCI specific frobbing if the
		 * PCI bridge lacks a ranges property.  We
		 * want to pass it through up to the next
		 * parent as-is, not with the PCI translate
		 * method which chops off the top address cell.
		 */
		if (!of_find_property(np, "ranges", NULL))
			return 0;

		return 1;
	}

	return 0;
}

static void of_bus_pci_count_cells(struct device_node *np,
				   int *addrc, int *sizec)
{
	if (addrc)
		*addrc = 3;
	if (sizec)
		*sizec = 2;
}

static int of_bus_pci_map(u32 *addr, const u32 *range,
			  int na, int ns, int pna)
{
	u32 result[OF_MAX_ADDR_CELLS];
	int i;

	/* Check address type match */
	if ((addr[0] ^ range[0]) & 0x03000000)
		return -EINVAL;

	if (of_out_of_range(addr + 1, range + 1, range + na + pna,
			    na - 1, ns))
		return -EINVAL;

	/* Start with the parent range base.  */
	memcpy(result, range + na, pna * 4);

	/* Add in the child address offset, skipping high cell.  */
	for (i = 0; i < na - 1; i++)
		result[pna - 1 - i] +=
			(addr[na - 1 - i] -
			 range[na - 1 - i]);

	memcpy(addr, result, pna * 4);

	return 0;
}

static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
{
	u32 w = addr[0];

	/* For PCI, we override whatever child busses may have used.  */
	flags = 0;
	switch((w >> 24) & 0x03) {
	case 0x01:
		flags |= IORESOURCE_IO;
		break;

	case 0x02: /* 32 bits */
	case 0x03: /* 64 bits */
		flags |= IORESOURCE_MEM;
		break;
	}
	if (w & 0x40000000)
		flags |= IORESOURCE_PREFETCH;
	return flags;
}

static unsigned long of_bus_sbus_get_flags(const u32 *addr, unsigned long flags)
{
	return IORESOURCE_MEM;
}

 /*
 * AMBAPP bus specific translator
 */

static int of_bus_ambapp_match(struct device_node *np)
{
	return !strcmp(np->type, "ambapp");
}

static void of_bus_ambapp_count_cells(struct device_node *child,
				      int *addrc, int *sizec)
{
	if (addrc)
		*addrc = 1;
	if (sizec)
		*sizec = 1;
}

static int of_bus_ambapp_map(u32 *addr, const u32 *range,
			     int na, int ns, int pna)
{
	return of_bus_default_map(addr, range, na, ns, pna);
}

static unsigned long of_bus_ambapp_get_flags(const u32 *addr,
					     unsigned long flags)
{
	return IORESOURCE_MEM;
}

/*
 * Array of bus specific translators
 */

static struct of_bus of_busses[] = {
	/* PCI */
	{
		.name = "pci",
		.addr_prop_name = "assigned-addresses",
		.match = of_bus_pci_match,
		.count_cells = of_bus_pci_count_cells,
		.map = of_bus_pci_map,
		.get_flags = of_bus_pci_get_flags,
	},
	/* SBUS */
	{
		.name = "sbus",
		.addr_prop_name = "reg",
		.match = of_bus_sbus_match,
		.count_cells = of_bus_sbus_count_cells,
		.map = of_bus_default_map,
		.get_flags = of_bus_sbus_get_flags,
	},
	/* AMBA */
	{
		.name = "ambapp",
		.addr_prop_name = "reg",
		.match = of_bus_ambapp_match,
		.count_cells = of_bus_ambapp_count_cells,
		.map = of_bus_ambapp_map,
		.get_flags = of_bus_ambapp_get_flags,
	},
	/* Default */
	{
		.name = "default",
		.addr_prop_name = "reg",
		.match = NULL,
		.count_cells = of_bus_default_count_cells,
		.map = of_bus_default_map,
		.get_flags = of_bus_default_get_flags,
	},
};

static struct of_bus *of_match_bus(struct device_node *np)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(of_busses); i ++)
		if (!of_busses[i].match || of_busses[i].match(np))
			return &of_busses[i];
	BUG();
	return NULL;
}

static int __init build_one_resource(struct device_node *parent,
				     struct of_bus *bus,
				     struct of_bus *pbus,
				     u32 *addr,
				     int na, int ns, int pna)
{
	const u32 *ranges;
	unsigned int rlen;
	int rone;

	ranges = of_get_property(parent, "ranges", &rlen);
	if (ranges == NULL || rlen == 0) {
		u32 result[OF_MAX_ADDR_CELLS];
		int i;

		memset(result, 0, pna * 4);
		for (i = 0; i < na; i++)
			result[pna - 1 - i] =
				addr[na - 1 - i];

		memcpy(addr, result, pna * 4);
		return 0;
	}

	/* Now walk through the ranges */
	rlen /= 4;
	rone = na + pna + ns;
	for (; rlen >= rone; rlen -= rone, ranges += rone) {
		if (!bus->map(addr, ranges, na, ns, pna))
			return 0;
	}

	return 1;
}

static int __init use_1to1_mapping(struct device_node *pp)
{
	/* If we have a ranges property in the parent, use it.  */
	if (of_find_property(pp, "ranges", NULL) != NULL)
		return 0;

	/* Some SBUS devices use intermediate nodes to express
	 * hierarchy within the device itself.  These aren't
	 * real bus nodes, and don't have a 'ranges' property.
	 * But, we should still pass the translation work up
	 * to the SBUS itself.
	 */
	if (!strcmp(pp->name, "dma") ||
	    !strcmp(pp->name, "espdma") ||
	    !strcmp(pp->name, "ledma") ||
	    !strcmp(pp->name, "lebuffer"))
		return 0;

	return 1;
}

static int of_resource_verbose;

static void __init build_device_resources(struct platform_device *op,
					  struct device *parent)
{
	struct platform_device *p_op;
	struct of_bus *bus;
	int na, ns;
	int index, num_reg;
	const void *preg;

	if (!parent)
		return;

	p_op = to_platform_device(parent);
	bus = of_match_bus(p_op->dev.of_node);
	bus->count_cells(op->dev.of_node, &na, &ns);

	preg = of_get_property(op->dev.of_node, bus->addr_prop_name, &num_reg);
	if (!preg || num_reg == 0)
		return;

	/* Convert to num-cells.  */
	num_reg /= 4;

	/* Conver to num-entries.  */
	num_reg /= na + ns;

	op->resource = op->archdata.resource;
	op->num_resources = num_reg;
	for (index = 0; index < num_reg; index++) {
		struct resource *r = &op->resource[index];
		u32 addr[OF_MAX_ADDR_CELLS];
		const u32 *reg = (preg + (index * ((na + ns) * 4)));
		struct device_node *dp = op->dev.of_node;
		struct device_node *pp = p_op->dev.of_node;
		struct of_bus *pbus, *dbus;
		u64 size, result = OF_BAD_ADDR;
		unsigned long flags;
		int dna, dns;
		int pna, pns;

		size = of_read_addr(reg + na, ns);

		memcpy(addr, reg, na * 4);

		flags = bus->get_flags(reg, 0);

		if (use_1to1_mapping(pp)) {
			result = of_read_addr(addr, na);
			goto build_res;
		}

		dna = na;
		dns = ns;
		dbus = bus;

		while (1) {
			dp = pp;
			pp = dp->parent;
			if (!pp) {
				result = of_read_addr(addr, dna);
				break;
			}

			pbus = of_match_bus(pp);
			pbus->count_cells(dp, &pna, &pns);

			if (build_one_resource(dp, dbus, pbus, addr,
					       dna, dns, pna))
				break;

			flags = pbus->get_flags(addr, flags);

			dna = pna;
			dns = pns;
			dbus = pbus;
		}

	build_res:
		memset(r, 0, sizeof(*r));

		if (of_resource_verbose)
			printk("%s reg[%d] -> %llx\n",
			       op->dev.of_node->full_name, index,
			       result);

		if (result != OF_BAD_ADDR) {
			r->start = result & 0xffffffff;
			r->end = result + size - 1;
			r->flags = flags | ((result >> 32ULL) & 0xffUL);
		}
		r->name = op->dev.of_node->name;
	}
}

static struct platform_device * __init scan_one_device(struct device_node *dp,
						 struct device *parent)
{
	struct platform_device *op = kzalloc(sizeof(*op), GFP_KERNEL);
	const struct linux_prom_irqs *intr;
	struct dev_archdata *sd;
	int len, i;

	if (!op)
		return NULL;

	sd = &op->dev.archdata;
	sd->op = op;

	op->dev.of_node = dp;

	intr = of_get_property(dp, "intr", &len);
	if (intr) {
		op->archdata.num_irqs = len / sizeof(struct linux_prom_irqs);
		for (i = 0; i < op->archdata.num_irqs; i++)
			op->archdata.irqs[i] =
			    sparc_config.build_device_irq(op, intr[i].pri);
	} else {
		const unsigned int *irq =
			of_get_property(dp, "interrupts", &len);

		if (irq) {
			op->archdata.num_irqs = len / sizeof(unsigned int);
			for (i = 0; i < op->archdata.num_irqs; i++)
				op->archdata.irqs[i] =
				    sparc_config.build_device_irq(op, irq[i]);
		} else {
			op->archdata.num_irqs = 0;
		}
	}

	build_device_resources(op, parent);

	op->dev.parent = parent;
	op->dev.bus = &platform_bus_type;
	if (!parent)
		dev_set_name(&op->dev, "root");
	else
		dev_set_name(&op->dev, "%08x", dp->phandle);

	if (of_device_register(op)) {
		printk("%s: Could not register of device.\n",
		       dp->full_name);
		kfree(op);
		op = NULL;
	}

	return op;
}

static void __init scan_tree(struct device_node *dp, struct device *parent)
{
	while (dp) {
		struct platform_device *op = scan_one_device(dp, parent);

		if (op)
			scan_tree(dp->child, &op->dev);

		dp = dp->sibling;
	}
}

static int __init scan_of_devices(void)
{
	struct device_node *root = of_find_node_by_path("/");
	struct platform_device *parent;

	parent = scan_one_device(root, NULL);
	if (!parent)
		return 0;

	scan_tree(root->child, &parent->dev);
	return 0;
}
postcore_initcall(scan_of_devices);

static int __init of_debug(char *str)
{
	int val = 0;

	get_option(&str, &val);
	if (val & 1)
		of_resource_verbose = 1;
	return 1;
}

__setup("of_debug=", of_debug);
Commit	Line	Data
fd531431 DM	1	#include <linux/string.h>
fd531431 DM	2	#include <linux/kernel.h>
f85ff305	3	#include <linux/of.h>
fd531431	4	#include <linux/init.h>
fd531431 DM	5	#include <linux/mod_devicetable.h>
fd531431 DM	6	#include <linux/slab.h>
3f23de10	7	#include <linux/errno.h>
c9f5b7e7	8	#include <linux/irq.h>
3f23de10 SR	9	#include <linux/of_device.h>
3f23de10 SR	10	#include <linux/of_platform.h>
e63829de KE	11	#include <asm/leon.h>
e63829de KE	12	#include <asm/leon_amba.h>
fd531431	13
c9f5b7e7	14	#include "of_device_common.h"
1d05995b	15	#include "irq.h"
cf44bbc2	16
cf44bbc2 DM	17	/*
	18	* PCI bus specific translator
	19	*/
	20
	21	static int of_bus_pci_match(struct device_node *np)
	22	{
a83f9823 DM	23	if (!strcmp(np->type, "pci") \|\| !strcmp(np->type, "pciex")) {
	24	/* Do not do PCI specific frobbing if the
	25	* PCI bridge lacks a ranges property. We
	26	* want to pass it through up to the next
	27	* parent as-is, not with the PCI translate
	28	* method which chops off the top address cell.
	29	*/
	30	if (!of_find_property(np, "ranges", NULL))
	31	return 0;
	32
	33	return 1;
	34	}
	35
	36	return 0;
cf44bbc2 DM	37	}
	38
	39	static void of_bus_pci_count_cells(struct device_node *np,
	40	int addrc, int sizec)
	41	{
	42	if (addrc)
	43	*addrc = 3;
	44	if (sizec)
	45	*sizec = 2;
	46	}
	47
a83f9823 DM	48	static int of_bus_pci_map(u32 addr, const u32 range,
a83f9823 DM	49	int na, int ns, int pna)
cf44bbc2	50	{
a83f9823 DM	51	u32 result[OF_MAX_ADDR_CELLS];
a83f9823 DM	52	int i;
cf44bbc2 DM	53
	54	/* Check address type match */
	55	if ((addr[0] ^ range[0]) & 0x03000000)
a83f9823	56	return -EINVAL;
cf44bbc2	57
a83f9823 DM	58	if (of_out_of_range(addr + 1, range + 1, range + na + pna,
	59	na - 1, ns))
	60	return -EINVAL;
cf44bbc2	61
a83f9823 DM	62	/* Start with the parent range base. */
a83f9823 DM	63	memcpy(result, range + na, pna * 4);
cf44bbc2	64
a83f9823 DM	65	/* Add in the child address offset, skipping high cell. */
	66	for (i = 0; i < na - 1; i++)
	67	result[pna - 1 - i] +=
	68	(addr[na - 1 - i] -
	69	range[na - 1 - i]);
	70
	71	memcpy(addr, result, pna * 4);
	72
	73	return 0;
cf44bbc2 DM	74	}
cf44bbc2 DM	75
e3c71a32	76	static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
cf44bbc2	77	{
cf44bbc2 DM	78	u32 w = addr[0];
cf44bbc2 DM	79
e3c71a32 DM	80	/* For PCI, we override whatever child busses may have used. */
e3c71a32 DM	81	flags = 0;
cf44bbc2 DM	82	switch((w >> 24) & 0x03) {
	83	case 0x01:
	84	flags \|= IORESOURCE_IO;
e3c71a32 DM	85	break;
e3c71a32 DM	86
cf44bbc2 DM	87	case 0x02: /* 32 bits */
	88	case 0x03: /* 64 bits */
	89	flags \|= IORESOURCE_MEM;
e3c71a32	90	break;
cf44bbc2 DM	91	}
	92	if (w & 0x40000000)
	93	flags \|= IORESOURCE_PREFETCH;
	94	return flags;
	95	}
	96
bdba4d6b	97	static unsigned long of_bus_sbus_get_flags(const u32 *addr, unsigned long flags)
cf44bbc2 DM	98	{
	99	return IORESOURCE_MEM;
	100	}
	101
e63829de KE	102	/*
	103	* AMBAPP bus specific translator
	104	*/
	105
	106	static int of_bus_ambapp_match(struct device_node *np)
	107	{
d7ecfb3c	108	return !strcmp(np->type, "ambapp");
e63829de KE	109	}
	110
	111	static void of_bus_ambapp_count_cells(struct device_node *child,
	112	int addrc, int sizec)
	113	{
	114	if (addrc)
	115	*addrc = 1;
	116	if (sizec)
	117	*sizec = 1;
	118	}
	119
	120	static int of_bus_ambapp_map(u32 addr, const u32 range,
	121	int na, int ns, int pna)
	122	{
	123	return of_bus_default_map(addr, range, na, ns, pna);
	124	}
	125
	126	static unsigned long of_bus_ambapp_get_flags(const u32 *addr,
	127	unsigned long flags)
	128	{
	129	return IORESOURCE_MEM;
	130	}
cf44bbc2 DM	131
	132	/*
	133	* Array of bus specific translators
	134	*/
	135
	136	static struct of_bus of_busses[] = {
	137	/* PCI */
	138	{
	139	.name = "pci",
	140	.addr_prop_name = "assigned-addresses",
	141	.match = of_bus_pci_match,
	142	.count_cells = of_bus_pci_count_cells,
	143	.map = of_bus_pci_map,
cf44bbc2 DM	144	.get_flags = of_bus_pci_get_flags,
	145	},
	146	/* SBUS */
	147	{
	148	.name = "sbus",
	149	.addr_prop_name = "reg",
	150	.match = of_bus_sbus_match,
	151	.count_cells = of_bus_sbus_count_cells,
c9f5b7e7	152	.map = of_bus_default_map,
cf44bbc2 DM	153	.get_flags = of_bus_sbus_get_flags,
cf44bbc2 DM	154	},
e63829de KE	155	/* AMBA */
	156	{
	157	.name = "ambapp",
	158	.addr_prop_name = "reg",
	159	.match = of_bus_ambapp_match,
	160	.count_cells = of_bus_ambapp_count_cells,
	161	.map = of_bus_ambapp_map,
	162	.get_flags = of_bus_ambapp_get_flags,
	163	},
cf44bbc2 DM	164	/* Default */
	165	{
	166	.name = "default",
	167	.addr_prop_name = "reg",
	168	.match = NULL,
	169	.count_cells = of_bus_default_count_cells,
	170	.map = of_bus_default_map,
cf44bbc2 DM	171	.get_flags = of_bus_default_get_flags,
	172	},
	173	};
	174
	175	static struct of_bus of_match_bus(struct device_node np)
	176	{
	177	int i;
	178
	179	for (i = 0; i < ARRAY_SIZE(of_busses); i ++)
	180	if (!of_busses[i].match \|\| of_busses[i].match(np))
	181	return &of_busses[i];
	182	BUG();
	183	return NULL;
	184	}
	185
	186	static int __init build_one_resource(struct device_node *parent,
	187	struct of_bus *bus,
	188	struct of_bus *pbus,
	189	u32 *addr,
	190	int na, int ns, int pna)
	191	{
8271f042	192	const u32 *ranges;
cf44bbc2 DM	193	unsigned int rlen;
cf44bbc2 DM	194	int rone;
cf44bbc2 DM	195
	196	ranges = of_get_property(parent, "ranges", &rlen);
	197	if (ranges == NULL \|\| rlen == 0) {
a83f9823 DM	198	u32 result[OF_MAX_ADDR_CELLS];
	199	int i;
	200
	201	memset(result, 0, pna * 4);
	202	for (i = 0; i < na; i++)
	203	result[pna - 1 - i] =
	204	addr[na - 1 - i];
	205
	206	memcpy(addr, result, pna * 4);
	207	return 0;
cf44bbc2 DM	208	}
	209
	210	/* Now walk through the ranges */
	211	rlen /= 4;
	212	rone = na + pna + ns;
	213	for (; rlen >= rone; rlen -= rone, ranges += rone) {
a83f9823 DM	214	if (!bus->map(addr, ranges, na, ns, pna))
a83f9823 DM	215	return 0;
cf44bbc2	216	}
cf44bbc2	217
a83f9823	218	return 1;
cf44bbc2 DM	219	}
cf44bbc2 DM	220
5280267c DM	221	static int __init use_1to1_mapping(struct device_node *pp)
	222	{
	223	/* If we have a ranges property in the parent, use it. */
	224	if (of_find_property(pp, "ranges", NULL) != NULL)
	225	return 0;
	226
	227	/* Some SBUS devices use intermediate nodes to express
	228	* hierarchy within the device itself. These aren't
	229	* real bus nodes, and don't have a 'ranges' property.
	230	* But, we should still pass the translation work up
	231	* to the SBUS itself.
	232	*/
	233	if (!strcmp(pp->name, "dma") \|\|
	234	!strcmp(pp->name, "espdma") \|\|
	235	!strcmp(pp->name, "ledma") \|\|
	236	!strcmp(pp->name, "lebuffer"))
	237	return 0;
	238
	239	return 1;
	240	}
	241
a83f9823 DM	242	static int of_resource_verbose;
a83f9823 DM	243
cd4cd730	244	static void __init build_device_resources(struct platform_device *op,
cf44bbc2 DM	245	struct device *parent)
cf44bbc2 DM	246	{
cd4cd730	247	struct platform_device *p_op;
cf44bbc2 DM	248	struct of_bus *bus;
	249	int na, ns;
	250	int index, num_reg;
8271f042	251	const void *preg;
cf44bbc2 DM	252
	253	if (!parent)
	254	return;
	255
cd4cd730	256	p_op = to_platform_device(parent);
61c7a080 GL	257	bus = of_match_bus(p_op->dev.of_node);
61c7a080 GL	258	bus->count_cells(op->dev.of_node, &na, &ns);
cf44bbc2	259
61c7a080	260	preg = of_get_property(op->dev.of_node, bus->addr_prop_name, &num_reg);
cf44bbc2 DM	261	if (!preg \|\| num_reg == 0)
	262	return;
	263
	264	/* Convert to num-cells. */
	265	num_reg /= 4;
	266
	267	/* Conver to num-entries. */
	268	num_reg /= na + ns;
	269
1636f8ac GL	270	op->resource = op->archdata.resource;
1636f8ac GL	271	op->num_resources = num_reg;
cf44bbc2 DM	272	for (index = 0; index < num_reg; index++) {
	273	struct resource *r = &op->resource[index];
	274	u32 addr[OF_MAX_ADDR_CELLS];
8271f042	275	const u32 reg = (preg + (index ((na + ns) * 4)));
61c7a080 GL	276	struct device_node *dp = op->dev.of_node;
61c7a080 GL	277	struct device_node *pp = p_op->dev.of_node;
b85cdd49	278	struct of_bus pbus, dbus;
cf44bbc2 DM	279	u64 size, result = OF_BAD_ADDR;
	280	unsigned long flags;
	281	int dna, dns;
	282	int pna, pns;
	283
	284	size = of_read_addr(reg + na, ns);
cf44bbc2 DM	285
	286	memcpy(addr, reg, na * 4);
	287
e3c71a32 DM	288	flags = bus->get_flags(reg, 0);
e3c71a32 DM	289
5280267c	290	if (use_1to1_mapping(pp)) {
cf44bbc2 DM	291	result = of_read_addr(addr, na);
	292	goto build_res;
	293	}
	294
	295	dna = na;
	296	dns = ns;
b85cdd49	297	dbus = bus;
cf44bbc2 DM	298
	299	while (1) {
	300	dp = pp;
	301	pp = dp->parent;
	302	if (!pp) {
	303	result = of_read_addr(addr, dna);
	304	break;
	305	}
	306
	307	pbus = of_match_bus(pp);
	308	pbus->count_cells(dp, &pna, &pns);
	309
b85cdd49	310	if (build_one_resource(dp, dbus, pbus, addr,
a83f9823	311	dna, dns, pna))
cf44bbc2 DM	312	break;
cf44bbc2 DM	313
e3c71a32 DM	314	flags = pbus->get_flags(addr, flags);
e3c71a32 DM	315
cf44bbc2 DM	316	dna = pna;
cf44bbc2 DM	317	dns = pns;
b85cdd49	318	dbus = pbus;
cf44bbc2 DM	319	}
	320
	321	build_res:
	322	memset(r, 0, sizeof(*r));
a83f9823 DM	323
	324	if (of_resource_verbose)
	325	printk("%s reg[%d] -> %llx\n",
61c7a080	326	op->dev.of_node->full_name, index,
a83f9823 DM	327	result);
a83f9823 DM	328
cf44bbc2	329	if (result != OF_BAD_ADDR) {
95714e12	330	r->start = result & 0xffffffff;
cf44bbc2	331	r->end = result + size - 1;
95714e12	332	r->flags = flags \| ((result >> 32ULL) & 0xffUL);
cf44bbc2	333	}
61c7a080	334	r->name = op->dev.of_node->name;
cf44bbc2 DM	335	}
	336	}
	337
cd4cd730	338	static struct platform_device * __init scan_one_device(struct device_node *dp,
cf44bbc2 DM	339	struct device *parent)
cf44bbc2 DM	340	{
cd4cd730	341	struct platform_device op = kzalloc(sizeof(op), GFP_KERNEL);
8271f042	342	const struct linux_prom_irqs *intr;
3d6e4702	343	struct dev_archdata *sd;
8f96cd1a	344	int len, i;
cf44bbc2 DM	345
	346	if (!op)
	347	return NULL;
	348
3d6e4702	349	sd = &op->dev.archdata;
3d6e4702 DM	350	sd->op = op;
3d6e4702 DM	351
d706c1b0	352	op->dev.of_node = dp;
cf44bbc2	353
8f96cd1a DM	354	intr = of_get_property(dp, "intr", &len);
8f96cd1a DM	355	if (intr) {
1636f8ac GL	356	op->archdata.num_irqs = len / sizeof(struct linux_prom_irqs);
1636f8ac GL	357	for (i = 0; i < op->archdata.num_irqs; i++)
1d05995b	358	op->archdata.irqs[i] =
472bc4f2	359	sparc_config.build_device_irq(op, intr[i].pri);
8f96cd1a	360	} else {
8271f042 SR	361	const unsigned int *irq =
8271f042 SR	362	of_get_property(dp, "interrupts", &len);
8f96cd1a DM	363
8f96cd1a DM	364	if (irq) {
1636f8ac GL	365	op->archdata.num_irqs = len / sizeof(unsigned int);
1636f8ac GL	366	for (i = 0; i < op->archdata.num_irqs; i++)
1d05995b	367	op->archdata.irqs[i] =
472bc4f2	368	sparc_config.build_device_irq(op, irq[i]);
8f96cd1a	369	} else {
1636f8ac	370	op->archdata.num_irqs = 0;
8f96cd1a DM	371	}
8f96cd1a DM	372	}
cf44bbc2 DM	373
	374	build_device_resources(op, parent);
	375
	376	op->dev.parent = parent;
eca39301	377	op->dev.bus = &platform_bus_type;
cf44bbc2	378	if (!parent)
5acdc1fa	379	dev_set_name(&op->dev, "root");
cf44bbc2	380	else
6016a363	381	dev_set_name(&op->dev, "%08x", dp->phandle);
cf44bbc2 DM	382
	383	if (of_device_register(op)) {
	384	printk("%s: Could not register of device.\n",
	385	dp->full_name);
	386	kfree(op);
	387	op = NULL;
	388	}
	389
	390	return op;
	391	}
	392
	393	static void __init scan_tree(struct device_node dp, struct device parent)
	394	{
	395	while (dp) {
cd4cd730	396	struct platform_device *op = scan_one_device(dp, parent);
cf44bbc2 DM	397
	398	if (op)
	399	scan_tree(dp->child, &op->dev);
	400
	401	dp = dp->sibling;
	402	}
	403	}
	404
eca39301	405	static int __init scan_of_devices(void)
cf44bbc2 DM	406	{
cf44bbc2 DM	407	struct device_node *root = of_find_node_by_path("/");
cd4cd730	408	struct platform_device *parent;
cf44bbc2 DM	409
	410	parent = scan_one_device(root, NULL);
	411	if (!parent)
eca39301	412	return 0;
cf44bbc2 DM	413
cf44bbc2 DM	414	scan_tree(root->child, &parent->dev);
eca39301	415	return 0;
cf44bbc2	416	}
eca39301	417	postcore_initcall(scan_of_devices);
fd531431	418
a83f9823 DM	419	static int __init of_debug(char *str)
	420	{
	421	int val = 0;
	422
	423	get_option(&str, &val);
	424	if (val & 1)
	425	of_resource_verbose = 1;
	426	return 1;
	427	}
	428
	429	__setup("of_debug=", of_debug);