xref: /freebsd/sys/dev/fdt/fdt_common.c (revision 752ba930785ffdb0104f77e350ab2433dec877f6)
158158742SRafal Jaworowski /*-
258158742SRafal Jaworowski  * Copyright (c) 2009-2010 The FreeBSD Foundation
358158742SRafal Jaworowski  * All rights reserved.
458158742SRafal Jaworowski  *
558158742SRafal Jaworowski  * This software was developed by Semihalf under sponsorship from
658158742SRafal Jaworowski  * the FreeBSD Foundation.
758158742SRafal Jaworowski  *
858158742SRafal Jaworowski  * Redistribution and use in source and binary forms, with or without
958158742SRafal Jaworowski  * modification, are permitted provided that the following conditions
1058158742SRafal Jaworowski  * are met:
1158158742SRafal Jaworowski  * 1. Redistributions of source code must retain the above copyright
1258158742SRafal Jaworowski  *    notice, this list of conditions and the following disclaimer.
1358158742SRafal Jaworowski  * 2. Redistributions in binary form must reproduce the above copyright
1458158742SRafal Jaworowski  *    notice, this list of conditions and the following disclaimer in the
1558158742SRafal Jaworowski  *    documentation and/or other materials provided with the distribution.
1658158742SRafal Jaworowski  *
1758158742SRafal Jaworowski  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1858158742SRafal Jaworowski  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1958158742SRafal Jaworowski  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2058158742SRafal Jaworowski  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
2158158742SRafal Jaworowski  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2258158742SRafal Jaworowski  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2358158742SRafal Jaworowski  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2458158742SRafal Jaworowski  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2558158742SRafal Jaworowski  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2658158742SRafal Jaworowski  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2758158742SRafal Jaworowski  * SUCH DAMAGE.
2858158742SRafal Jaworowski  */
2958158742SRafal Jaworowski 
3058158742SRafal Jaworowski #include <sys/cdefs.h>
3158158742SRafal Jaworowski __FBSDID("$FreeBSD$");
3258158742SRafal Jaworowski 
3358158742SRafal Jaworowski #include <sys/param.h>
3458158742SRafal Jaworowski #include <sys/systm.h>
3558158742SRafal Jaworowski #include <sys/kernel.h>
3658158742SRafal Jaworowski #include <sys/module.h>
3758158742SRafal Jaworowski #include <sys/bus.h>
388bb93637SOleksandr Tymoshenko #include <sys/limits.h>
3958158742SRafal Jaworowski 
4058158742SRafal Jaworowski #include <machine/resource.h>
4158158742SRafal Jaworowski 
4258158742SRafal Jaworowski #include <dev/fdt/fdt_common.h>
4358158742SRafal Jaworowski #include <dev/ofw/ofw_bus.h>
4458158742SRafal Jaworowski #include <dev/ofw/ofw_bus_subr.h>
4558158742SRafal Jaworowski #include <dev/ofw/openfirm.h>
4658158742SRafal Jaworowski 
4758158742SRafal Jaworowski #include "ofw_bus_if.h"
4858158742SRafal Jaworowski 
4958158742SRafal Jaworowski #ifdef DEBUG
5058158742SRafal Jaworowski #define debugf(fmt, args...) do { printf("%s(): ", __func__);	\
5158158742SRafal Jaworowski     printf(fmt,##args); } while (0)
5258158742SRafal Jaworowski #else
5358158742SRafal Jaworowski #define debugf(fmt, args...)
5458158742SRafal Jaworowski #endif
5558158742SRafal Jaworowski 
5658158742SRafal Jaworowski #define FDT_COMPAT_LEN	255
5758158742SRafal Jaworowski #define FDT_TYPE_LEN	64
5858158742SRafal Jaworowski 
5958158742SRafal Jaworowski #define FDT_REG_CELLS	4
6058158742SRafal Jaworowski 
6158158742SRafal Jaworowski vm_paddr_t fdt_immr_pa;
6258158742SRafal Jaworowski vm_offset_t fdt_immr_va;
6358158742SRafal Jaworowski vm_offset_t fdt_immr_size;
6458158742SRafal Jaworowski 
651f40dbc8SBrooks Davis struct fdt_ic_list fdt_ic_list_head = SLIST_HEAD_INITIALIZER(fdt_ic_list_head);
661f40dbc8SBrooks Davis 
6758158742SRafal Jaworowski int
688bb93637SOleksandr Tymoshenko fdt_get_range(phandle_t node, int range_id, u_long *base, u_long *size)
6958158742SRafal Jaworowski {
7058158742SRafal Jaworowski 	pcell_t ranges[6], *rangesptr;
7158158742SRafal Jaworowski 	pcell_t addr_cells, size_cells, par_addr_cells;
7258158742SRafal Jaworowski 	int len, tuple_size, tuples;
7358158742SRafal Jaworowski 
7458158742SRafal Jaworowski 	if ((fdt_addrsize_cells(node, &addr_cells, &size_cells)) != 0)
7558158742SRafal Jaworowski 		return (ENXIO);
7658158742SRafal Jaworowski 	/*
7758158742SRafal Jaworowski 	 * Process 'ranges' property.
7858158742SRafal Jaworowski 	 */
7958158742SRafal Jaworowski 	par_addr_cells = fdt_parent_addr_cells(node);
8058158742SRafal Jaworowski 	if (par_addr_cells > 2)
8158158742SRafal Jaworowski 		return (ERANGE);
8258158742SRafal Jaworowski 
8358158742SRafal Jaworowski 	len = OF_getproplen(node, "ranges");
8458158742SRafal Jaworowski 	if (len > sizeof(ranges))
8558158742SRafal Jaworowski 		return (ENOMEM);
868bb93637SOleksandr Tymoshenko 	if (len == 0) {
878bb93637SOleksandr Tymoshenko 		*base = 0;
888bb93637SOleksandr Tymoshenko 		*size = ULONG_MAX;
898bb93637SOleksandr Tymoshenko 		return (0);
908bb93637SOleksandr Tymoshenko 	}
918bb93637SOleksandr Tymoshenko 
928bb93637SOleksandr Tymoshenko 	if (!(range_id < len))
938bb93637SOleksandr Tymoshenko 		return (ERANGE);
9458158742SRafal Jaworowski 
9558158742SRafal Jaworowski 	if (OF_getprop(node, "ranges", ranges, sizeof(ranges)) <= 0)
9658158742SRafal Jaworowski 		return (EINVAL);
9758158742SRafal Jaworowski 
9858158742SRafal Jaworowski 	tuple_size = sizeof(pcell_t) * (addr_cells + par_addr_cells +
9958158742SRafal Jaworowski 	    size_cells);
10058158742SRafal Jaworowski 	tuples = len / tuple_size;
10158158742SRafal Jaworowski 
10258158742SRafal Jaworowski 	if (fdt_ranges_verify(ranges, tuples, par_addr_cells,
10358158742SRafal Jaworowski 	    addr_cells, size_cells)) {
10458158742SRafal Jaworowski 		return (ERANGE);
10558158742SRafal Jaworowski 	}
1068bb93637SOleksandr Tymoshenko 	*base = 0;
1078bb93637SOleksandr Tymoshenko 	*size = 0;
1088bb93637SOleksandr Tymoshenko 	rangesptr = &ranges[range_id];
10958158742SRafal Jaworowski 
1108bb93637SOleksandr Tymoshenko 	*base = fdt_data_get((void *)rangesptr, addr_cells);
11158158742SRafal Jaworowski 	rangesptr += addr_cells;
1128bb93637SOleksandr Tymoshenko 	*base += fdt_data_get((void *)rangesptr, par_addr_cells);
11358158742SRafal Jaworowski 	rangesptr += par_addr_cells;
1148bb93637SOleksandr Tymoshenko 	*size = fdt_data_get((void *)rangesptr, size_cells);
1158bb93637SOleksandr Tymoshenko 	return (0);
1168bb93637SOleksandr Tymoshenko }
11758158742SRafal Jaworowski 
1188bb93637SOleksandr Tymoshenko int
1198bb93637SOleksandr Tymoshenko fdt_immr_addr(vm_offset_t immr_va)
1208bb93637SOleksandr Tymoshenko {
1218bb93637SOleksandr Tymoshenko 	phandle_t node;
1228bb93637SOleksandr Tymoshenko 	u_long base, size;
1238bb93637SOleksandr Tymoshenko 	int r;
1248bb93637SOleksandr Tymoshenko 
1258bb93637SOleksandr Tymoshenko 	/*
1268bb93637SOleksandr Tymoshenko 	 * Try to access the SOC node directly i.e. through /aliases/.
1278bb93637SOleksandr Tymoshenko 	 */
1288bb93637SOleksandr Tymoshenko 	if ((node = OF_finddevice("soc")) != 0)
1298bb93637SOleksandr Tymoshenko 		if (fdt_is_compatible_strict(node, "simple-bus"))
1308bb93637SOleksandr Tymoshenko 			goto moveon;
1318bb93637SOleksandr Tymoshenko 	/*
1328bb93637SOleksandr Tymoshenko 	 * Find the node the long way.
1338bb93637SOleksandr Tymoshenko 	 */
1348bb93637SOleksandr Tymoshenko 	if ((node = OF_finddevice("/")) == 0)
1358bb93637SOleksandr Tymoshenko 		return (ENXIO);
1368bb93637SOleksandr Tymoshenko 
1378bb93637SOleksandr Tymoshenko 	if ((node = fdt_find_compatible(node, "simple-bus", 1)) == 0)
1388bb93637SOleksandr Tymoshenko 		return (ENXIO);
1398bb93637SOleksandr Tymoshenko 
1408bb93637SOleksandr Tymoshenko moveon:
1418bb93637SOleksandr Tymoshenko 	if ((r = fdt_get_range(node, 0, &base, &size)) == 0) {
14258158742SRafal Jaworowski 		fdt_immr_pa = base;
1434f124b97SRafal Jaworowski 		fdt_immr_va = immr_va;
14458158742SRafal Jaworowski 		fdt_immr_size = size;
1458bb93637SOleksandr Tymoshenko 	}
14658158742SRafal Jaworowski 
1478bb93637SOleksandr Tymoshenko 	return (r);
14858158742SRafal Jaworowski }
14958158742SRafal Jaworowski 
15058158742SRafal Jaworowski /*
15158158742SRafal Jaworowski  * This routine is an early-usage version of the ofw_bus_is_compatible() when
15258158742SRafal Jaworowski  * the ofw_bus I/F is not available (like early console routines and similar).
15358158742SRafal Jaworowski  * Note the buffer has to be on the stack since malloc() is usually not
15458158742SRafal Jaworowski  * available in such cases either.
15558158742SRafal Jaworowski  */
15658158742SRafal Jaworowski int
15758158742SRafal Jaworowski fdt_is_compatible(phandle_t node, const char *compatstr)
15858158742SRafal Jaworowski {
15958158742SRafal Jaworowski 	char buf[FDT_COMPAT_LEN];
16058158742SRafal Jaworowski 	char *compat;
16158158742SRafal Jaworowski 	int len, onelen, l, rv;
16258158742SRafal Jaworowski 
16358158742SRafal Jaworowski 	if ((len = OF_getproplen(node, "compatible")) <= 0)
16458158742SRafal Jaworowski 		return (0);
16558158742SRafal Jaworowski 
16658158742SRafal Jaworowski 	compat = (char *)&buf;
16758158742SRafal Jaworowski 	bzero(compat, FDT_COMPAT_LEN);
16858158742SRafal Jaworowski 
16958158742SRafal Jaworowski 	if (OF_getprop(node, "compatible", compat, FDT_COMPAT_LEN) < 0)
17058158742SRafal Jaworowski 		return (0);
17158158742SRafal Jaworowski 
17258158742SRafal Jaworowski 	onelen = strlen(compatstr);
17358158742SRafal Jaworowski 	rv = 0;
17458158742SRafal Jaworowski 	while (len > 0) {
17558158742SRafal Jaworowski 		if (strncasecmp(compat, compatstr, onelen) == 0) {
17658158742SRafal Jaworowski 			/* Found it. */
17758158742SRafal Jaworowski 			rv = 1;
17858158742SRafal Jaworowski 			break;
17958158742SRafal Jaworowski 		}
18058158742SRafal Jaworowski 		/* Slide to the next sub-string. */
18158158742SRafal Jaworowski 		l = strlen(compat) + 1;
18258158742SRafal Jaworowski 		compat += l;
18358158742SRafal Jaworowski 		len -= l;
18458158742SRafal Jaworowski 	}
18558158742SRafal Jaworowski 
18658158742SRafal Jaworowski 	return (rv);
18758158742SRafal Jaworowski }
18858158742SRafal Jaworowski 
18958158742SRafal Jaworowski int
19058158742SRafal Jaworowski fdt_is_compatible_strict(phandle_t node, const char *compatible)
19158158742SRafal Jaworowski {
19258158742SRafal Jaworowski 	char compat[FDT_COMPAT_LEN];
19358158742SRafal Jaworowski 
19458158742SRafal Jaworowski 	if (OF_getproplen(node, "compatible") <= 0)
19558158742SRafal Jaworowski 		return (0);
19658158742SRafal Jaworowski 
19758158742SRafal Jaworowski 	if (OF_getprop(node, "compatible", compat, FDT_COMPAT_LEN) < 0)
19858158742SRafal Jaworowski 		return (0);
19958158742SRafal Jaworowski 
20058158742SRafal Jaworowski 	if (strncasecmp(compat, compatible, FDT_COMPAT_LEN) == 0)
20158158742SRafal Jaworowski 		/* This fits. */
20258158742SRafal Jaworowski 		return (1);
20358158742SRafal Jaworowski 
20458158742SRafal Jaworowski 	return (0);
20558158742SRafal Jaworowski }
20658158742SRafal Jaworowski 
20758158742SRafal Jaworowski phandle_t
20858158742SRafal Jaworowski fdt_find_compatible(phandle_t start, const char *compat, int strict)
20958158742SRafal Jaworowski {
21058158742SRafal Jaworowski 	phandle_t child;
21158158742SRafal Jaworowski 
21258158742SRafal Jaworowski 	/*
21358158742SRafal Jaworowski 	 * Traverse all children of 'start' node, and find first with
21458158742SRafal Jaworowski 	 * matching 'compatible' property.
21558158742SRafal Jaworowski 	 */
21658158742SRafal Jaworowski 	for (child = OF_child(start); child != 0; child = OF_peer(child))
21758158742SRafal Jaworowski 		if (fdt_is_compatible(child, compat)) {
21858158742SRafal Jaworowski 			if (strict)
21958158742SRafal Jaworowski 				if (!fdt_is_compatible_strict(child, compat))
22058158742SRafal Jaworowski 					continue;
22158158742SRafal Jaworowski 			return (child);
22258158742SRafal Jaworowski 		}
22358158742SRafal Jaworowski 	return (0);
22458158742SRafal Jaworowski }
22558158742SRafal Jaworowski 
226731ff010SIan Lepore phandle_t
227731ff010SIan Lepore fdt_depth_search_compatible(phandle_t start, const char *compat, int strict)
228731ff010SIan Lepore {
229731ff010SIan Lepore 	phandle_t child, node;
230731ff010SIan Lepore 
231731ff010SIan Lepore 	/*
232731ff010SIan Lepore 	 * Depth-search all descendants of 'start' node, and find first with
233731ff010SIan Lepore 	 * matching 'compatible' property.
234731ff010SIan Lepore 	 */
235731ff010SIan Lepore 	for (node = OF_child(start); node != 0; node = OF_peer(node)) {
236731ff010SIan Lepore 		if (fdt_is_compatible(node, compat) &&
237731ff010SIan Lepore 		    (strict == 0 || fdt_is_compatible_strict(node, compat))) {
238731ff010SIan Lepore 			return (node);
239731ff010SIan Lepore 		}
240a41679c9SIan Lepore 		child = fdt_depth_search_compatible(node, compat, strict);
241731ff010SIan Lepore 		if (child != 0)
242731ff010SIan Lepore 			return (child);
243731ff010SIan Lepore 	}
244731ff010SIan Lepore 	return (0);
245731ff010SIan Lepore }
246731ff010SIan Lepore 
24758158742SRafal Jaworowski int
24858158742SRafal Jaworowski fdt_is_enabled(phandle_t node)
24958158742SRafal Jaworowski {
25058158742SRafal Jaworowski 	char *stat;
25158158742SRafal Jaworowski 	int ena, len;
25258158742SRafal Jaworowski 
25358158742SRafal Jaworowski 	len = OF_getprop_alloc(node, "status", sizeof(char),
25458158742SRafal Jaworowski 	    (void **)&stat);
25558158742SRafal Jaworowski 
25658158742SRafal Jaworowski 	if (len <= 0)
25758158742SRafal Jaworowski 		/* It is OK if no 'status' property. */
25858158742SRafal Jaworowski 		return (1);
25958158742SRafal Jaworowski 
26058158742SRafal Jaworowski 	/* Anything other than 'okay' means disabled. */
26158158742SRafal Jaworowski 	ena = 0;
26258158742SRafal Jaworowski 	if (strncmp((char *)stat, "okay", len) == 0)
26358158742SRafal Jaworowski 		ena = 1;
26458158742SRafal Jaworowski 
26558158742SRafal Jaworowski 	free(stat, M_OFWPROP);
26658158742SRafal Jaworowski 	return (ena);
26758158742SRafal Jaworowski }
26858158742SRafal Jaworowski 
26958158742SRafal Jaworowski int
27058158742SRafal Jaworowski fdt_is_type(phandle_t node, const char *typestr)
27158158742SRafal Jaworowski {
27258158742SRafal Jaworowski 	char type[FDT_TYPE_LEN];
27358158742SRafal Jaworowski 
27458158742SRafal Jaworowski 	if (OF_getproplen(node, "device_type") <= 0)
27558158742SRafal Jaworowski 		return (0);
27658158742SRafal Jaworowski 
27758158742SRafal Jaworowski 	if (OF_getprop(node, "device_type", type, FDT_TYPE_LEN) < 0)
27858158742SRafal Jaworowski 		return (0);
27958158742SRafal Jaworowski 
28058158742SRafal Jaworowski 	if (strncasecmp(type, typestr, FDT_TYPE_LEN) == 0)
28158158742SRafal Jaworowski 		/* This fits. */
28258158742SRafal Jaworowski 		return (1);
28358158742SRafal Jaworowski 
28458158742SRafal Jaworowski 	return (0);
28558158742SRafal Jaworowski }
28658158742SRafal Jaworowski 
28758158742SRafal Jaworowski int
28858158742SRafal Jaworowski fdt_parent_addr_cells(phandle_t node)
28958158742SRafal Jaworowski {
29058158742SRafal Jaworowski 	pcell_t addr_cells;
29158158742SRafal Jaworowski 
29258158742SRafal Jaworowski 	/* Find out #address-cells of the superior bus. */
29358158742SRafal Jaworowski 	if (OF_searchprop(OF_parent(node), "#address-cells", &addr_cells,
29458158742SRafal Jaworowski 	    sizeof(addr_cells)) <= 0)
29558158742SRafal Jaworowski 		addr_cells = 2;
29658158742SRafal Jaworowski 
29758158742SRafal Jaworowski 	return ((int)fdt32_to_cpu(addr_cells));
29858158742SRafal Jaworowski }
29958158742SRafal Jaworowski 
30058158742SRafal Jaworowski int
30158158742SRafal Jaworowski fdt_data_verify(void *data, int cells)
30258158742SRafal Jaworowski {
30358158742SRafal Jaworowski 	uint64_t d64;
30458158742SRafal Jaworowski 
30558158742SRafal Jaworowski 	if (cells > 1) {
30658158742SRafal Jaworowski 		d64 = fdt64_to_cpu(*((uint64_t *)data));
30758158742SRafal Jaworowski 		if (((d64 >> 32) & 0xffffffffull) != 0 || cells > 2)
30858158742SRafal Jaworowski 			return (ERANGE);
30958158742SRafal Jaworowski 	}
31058158742SRafal Jaworowski 
31158158742SRafal Jaworowski 	return (0);
31258158742SRafal Jaworowski }
31358158742SRafal Jaworowski 
31458158742SRafal Jaworowski int
31558158742SRafal Jaworowski fdt_pm_is_enabled(phandle_t node)
31658158742SRafal Jaworowski {
31758158742SRafal Jaworowski 	int ret;
31858158742SRafal Jaworowski 
31958158742SRafal Jaworowski 	ret = 1;
32058158742SRafal Jaworowski 
32158158742SRafal Jaworowski #if defined(SOC_MV_KIRKWOOD) || defined(SOC_MV_DISCOVERY)
32258158742SRafal Jaworowski 	ret = fdt_pm(node);
32358158742SRafal Jaworowski #endif
32458158742SRafal Jaworowski 	return (ret);
32558158742SRafal Jaworowski }
32658158742SRafal Jaworowski 
32758158742SRafal Jaworowski u_long
32858158742SRafal Jaworowski fdt_data_get(void *data, int cells)
32958158742SRafal Jaworowski {
33058158742SRafal Jaworowski 
33158158742SRafal Jaworowski 	if (cells == 1)
33258158742SRafal Jaworowski 		return (fdt32_to_cpu(*((uint32_t *)data)));
33358158742SRafal Jaworowski 
33458158742SRafal Jaworowski 	return (fdt64_to_cpu(*((uint64_t *)data)));
33558158742SRafal Jaworowski }
33658158742SRafal Jaworowski 
33758158742SRafal Jaworowski int
33858158742SRafal Jaworowski fdt_addrsize_cells(phandle_t node, int *addr_cells, int *size_cells)
33958158742SRafal Jaworowski {
34058158742SRafal Jaworowski 	pcell_t cell;
34158158742SRafal Jaworowski 	int cell_size;
34258158742SRafal Jaworowski 
34358158742SRafal Jaworowski 	/*
34458158742SRafal Jaworowski 	 * Retrieve #{address,size}-cells.
34558158742SRafal Jaworowski 	 */
34658158742SRafal Jaworowski 	cell_size = sizeof(cell);
34758158742SRafal Jaworowski 	if (OF_getprop(node, "#address-cells", &cell, cell_size) < cell_size)
34858158742SRafal Jaworowski 		cell = 2;
34958158742SRafal Jaworowski 	*addr_cells = fdt32_to_cpu((int)cell);
35058158742SRafal Jaworowski 
35158158742SRafal Jaworowski 	if (OF_getprop(node, "#size-cells", &cell, cell_size) < cell_size)
35258158742SRafal Jaworowski 		cell = 1;
35358158742SRafal Jaworowski 	*size_cells = fdt32_to_cpu((int)cell);
35458158742SRafal Jaworowski 
35558158742SRafal Jaworowski 	if (*addr_cells > 3 || *size_cells > 2)
35658158742SRafal Jaworowski 		return (ERANGE);
35758158742SRafal Jaworowski 	return (0);
35858158742SRafal Jaworowski }
35958158742SRafal Jaworowski 
36058158742SRafal Jaworowski int
36158158742SRafal Jaworowski fdt_ranges_verify(pcell_t *ranges, int tuples, int par_addr_cells,
36258158742SRafal Jaworowski     int this_addr_cells, int this_size_cells)
36358158742SRafal Jaworowski {
36458158742SRafal Jaworowski 	int i, rv, ulsz;
36558158742SRafal Jaworowski 
36658158742SRafal Jaworowski 	if (par_addr_cells > 2 || this_addr_cells > 2 || this_size_cells > 2)
36758158742SRafal Jaworowski 		return (ERANGE);
36858158742SRafal Jaworowski 
36958158742SRafal Jaworowski 	/*
37058158742SRafal Jaworowski 	 * This is the max size the resource manager can handle for addresses
37158158742SRafal Jaworowski 	 * and sizes.
37258158742SRafal Jaworowski 	 */
37358158742SRafal Jaworowski 	ulsz = sizeof(u_long);
37458158742SRafal Jaworowski 	if (par_addr_cells <= ulsz && this_addr_cells <= ulsz &&
37558158742SRafal Jaworowski 	    this_size_cells <= ulsz)
37658158742SRafal Jaworowski 		/* We can handle everything */
37758158742SRafal Jaworowski 		return (0);
37858158742SRafal Jaworowski 
37958158742SRafal Jaworowski 	rv = 0;
38058158742SRafal Jaworowski 	for (i = 0; i < tuples; i++) {
38158158742SRafal Jaworowski 
38258158742SRafal Jaworowski 		if (fdt_data_verify((void *)ranges, par_addr_cells))
38358158742SRafal Jaworowski 			goto err;
38458158742SRafal Jaworowski 		ranges += par_addr_cells;
38558158742SRafal Jaworowski 
38658158742SRafal Jaworowski 		if (fdt_data_verify((void *)ranges, this_addr_cells))
38758158742SRafal Jaworowski 			goto err;
38858158742SRafal Jaworowski 		ranges += this_addr_cells;
38958158742SRafal Jaworowski 
39058158742SRafal Jaworowski 		if (fdt_data_verify((void *)ranges, this_size_cells))
39158158742SRafal Jaworowski 			goto err;
39258158742SRafal Jaworowski 		ranges += this_size_cells;
39358158742SRafal Jaworowski 	}
39458158742SRafal Jaworowski 
39558158742SRafal Jaworowski 	return (0);
39658158742SRafal Jaworowski 
39758158742SRafal Jaworowski err:
39858158742SRafal Jaworowski 	debugf("using address range >%d-bit not supported\n", ulsz * 8);
39958158742SRafal Jaworowski 	return (ERANGE);
40058158742SRafal Jaworowski }
40158158742SRafal Jaworowski 
40258158742SRafal Jaworowski int
40358158742SRafal Jaworowski fdt_data_to_res(pcell_t *data, int addr_cells, int size_cells, u_long *start,
40458158742SRafal Jaworowski     u_long *count)
40558158742SRafal Jaworowski {
40658158742SRafal Jaworowski 
40758158742SRafal Jaworowski 	/* Address portion. */
40858158742SRafal Jaworowski 	if (fdt_data_verify((void *)data, addr_cells))
40958158742SRafal Jaworowski 		return (ERANGE);
41058158742SRafal Jaworowski 
41158158742SRafal Jaworowski 	*start = fdt_data_get((void *)data, addr_cells);
41258158742SRafal Jaworowski 	data += addr_cells;
41358158742SRafal Jaworowski 
41458158742SRafal Jaworowski 	/* Size portion. */
41558158742SRafal Jaworowski 	if (fdt_data_verify((void *)data, size_cells))
41658158742SRafal Jaworowski 		return (ERANGE);
41758158742SRafal Jaworowski 
41858158742SRafal Jaworowski 	*count = fdt_data_get((void *)data, size_cells);
41958158742SRafal Jaworowski 	return (0);
42058158742SRafal Jaworowski }
42158158742SRafal Jaworowski 
42258158742SRafal Jaworowski int
42358158742SRafal Jaworowski fdt_regsize(phandle_t node, u_long *base, u_long *size)
42458158742SRafal Jaworowski {
42558158742SRafal Jaworowski 	pcell_t reg[4];
42658158742SRafal Jaworowski 	int addr_cells, len, size_cells;
42758158742SRafal Jaworowski 
42858158742SRafal Jaworowski 	if (fdt_addrsize_cells(OF_parent(node), &addr_cells, &size_cells))
42958158742SRafal Jaworowski 		return (ENXIO);
43058158742SRafal Jaworowski 
43158158742SRafal Jaworowski 	if ((sizeof(pcell_t) * (addr_cells + size_cells)) > sizeof(reg))
43258158742SRafal Jaworowski 		return (ENOMEM);
43358158742SRafal Jaworowski 
43458158742SRafal Jaworowski 	len = OF_getprop(node, "reg", &reg, sizeof(reg));
43558158742SRafal Jaworowski 	if (len <= 0)
43658158742SRafal Jaworowski 		return (EINVAL);
43758158742SRafal Jaworowski 
43858158742SRafal Jaworowski 	*base = fdt_data_get(&reg[0], addr_cells);
43958158742SRafal Jaworowski 	*size = fdt_data_get(&reg[addr_cells], size_cells);
44058158742SRafal Jaworowski 	return (0);
44158158742SRafal Jaworowski }
44258158742SRafal Jaworowski 
44358158742SRafal Jaworowski int
4448bb93637SOleksandr Tymoshenko fdt_reg_to_rl(phandle_t node, struct resource_list *rl)
44558158742SRafal Jaworowski {
4465ac9d989SAleksandr Rybalko 	u_long end, count, start;
44758158742SRafal Jaworowski 	pcell_t *reg, *regptr;
44858158742SRafal Jaworowski 	pcell_t addr_cells, size_cells;
44958158742SRafal Jaworowski 	int tuple_size, tuples;
45058158742SRafal Jaworowski 	int i, rv;
4518bb93637SOleksandr Tymoshenko 	long busaddr, bussize;
45258158742SRafal Jaworowski 
45358158742SRafal Jaworowski 	if (fdt_addrsize_cells(OF_parent(node), &addr_cells, &size_cells) != 0)
45458158742SRafal Jaworowski 		return (ENXIO);
4552f0da24bSGrzegorz Bernacki 	if (fdt_get_range(OF_parent(node), 0, &busaddr, &bussize)) {
4562f0da24bSGrzegorz Bernacki 		busaddr = 0;
4572f0da24bSGrzegorz Bernacki 		bussize = 0;
4582f0da24bSGrzegorz Bernacki 	}
45958158742SRafal Jaworowski 
46058158742SRafal Jaworowski 	tuple_size = sizeof(pcell_t) * (addr_cells + size_cells);
46158158742SRafal Jaworowski 	tuples = OF_getprop_alloc(node, "reg", tuple_size, (void **)&reg);
46258158742SRafal Jaworowski 	debugf("addr_cells = %d, size_cells = %d\n", addr_cells, size_cells);
46358158742SRafal Jaworowski 	debugf("tuples = %d, tuple size = %d\n", tuples, tuple_size);
46458158742SRafal Jaworowski 	if (tuples <= 0)
46558158742SRafal Jaworowski 		/* No 'reg' property in this node. */
46658158742SRafal Jaworowski 		return (0);
46758158742SRafal Jaworowski 
46858158742SRafal Jaworowski 	regptr = reg;
46958158742SRafal Jaworowski 	for (i = 0; i < tuples; i++) {
47058158742SRafal Jaworowski 
4715ac9d989SAleksandr Rybalko 		rv = fdt_data_to_res(reg, addr_cells, size_cells, &start,
4725ac9d989SAleksandr Rybalko 		    &count);
47358158742SRafal Jaworowski 		if (rv != 0) {
47458158742SRafal Jaworowski 			resource_list_free(rl);
47558158742SRafal Jaworowski 			goto out;
47658158742SRafal Jaworowski 		}
47758158742SRafal Jaworowski 		reg += addr_cells + size_cells;
47858158742SRafal Jaworowski 
47958158742SRafal Jaworowski 		/* Calculate address range relative to base. */
4808bb93637SOleksandr Tymoshenko 		start += busaddr;
4814117c1dbSAleksandr Rybalko 		end = start + count - 1;
48258158742SRafal Jaworowski 
4834117c1dbSAleksandr Rybalko 		debugf("reg addr start = %lx, end = %lx, count = %lx\n", start,
48458158742SRafal Jaworowski 		    end, count);
48558158742SRafal Jaworowski 
4864117c1dbSAleksandr Rybalko 		resource_list_add(rl, SYS_RES_MEMORY, i, start, end,
48758158742SRafal Jaworowski 		    count);
48858158742SRafal Jaworowski 	}
48958158742SRafal Jaworowski 	rv = 0;
49058158742SRafal Jaworowski 
49158158742SRafal Jaworowski out:
49258158742SRafal Jaworowski 	free(regptr, M_OFWPROP);
49358158742SRafal Jaworowski 	return (rv);
49458158742SRafal Jaworowski }
49558158742SRafal Jaworowski 
49658158742SRafal Jaworowski int
49767dbd33cSNathan Whitehorn fdt_intr_to_rl(device_t dev, phandle_t node, struct resource_list *rl,
49858158742SRafal Jaworowski     struct fdt_sense_level *intr_sl)
49958158742SRafal Jaworowski {
50067dbd33cSNathan Whitehorn 	phandle_t iparent;
50167dbd33cSNathan Whitehorn 	uint32_t *intr, icells;
50267dbd33cSNathan Whitehorn 	int nintr, i, k;
50358158742SRafal Jaworowski 
50467dbd33cSNathan Whitehorn 	nintr = OF_getencprop_alloc(node, "interrupts",  sizeof(*intr),
50567dbd33cSNathan Whitehorn 	    (void **)&intr);
50667dbd33cSNathan Whitehorn 	if (nintr > 0) {
507f2a7dc98SIan Lepore 		if (OF_searchencprop(node, "interrupt-parent", &iparent,
508f2a7dc98SIan Lepore 		    sizeof(iparent)) == -1) {
509f2a7dc98SIan Lepore 			device_printf(dev, "No interrupt-parent found, "
510f2a7dc98SIan Lepore 			    "assuming direct parent\n");
511f2a7dc98SIan Lepore 			iparent = OF_parent(node);
512f2a7dc98SIan Lepore 		}
513*752ba930SIan Lepore 		if (OF_searchencprop(OF_node_from_xref(iparent),
514f2a7dc98SIan Lepore 		    "#interrupt-cells", &icells, sizeof(icells)) == -1) {
515f2a7dc98SIan Lepore 			device_printf(dev, "Missing #interrupt-cells property, "
516f2a7dc98SIan Lepore 			    "assuming <1>\n");
517f2a7dc98SIan Lepore 			icells = 1;
518f2a7dc98SIan Lepore 		}
519f2a7dc98SIan Lepore 		if (icells < 1 || icells > nintr) {
520f2a7dc98SIan Lepore 			device_printf(dev, "Invalid #interrupt-cells property "
521f2a7dc98SIan Lepore 			    "value <%d>, assuming <1>\n", icells);
522f2a7dc98SIan Lepore 			icells = 1;
523f2a7dc98SIan Lepore 		}
52467dbd33cSNathan Whitehorn 		for (i = 0, k = 0; i < nintr; i += icells, k++) {
525f18ac51aSNathan Whitehorn 			intr[i] = ofw_bus_map_intr(dev, iparent, icells,
526f18ac51aSNathan Whitehorn 			    &intr[i]);
52767dbd33cSNathan Whitehorn 			resource_list_add(rl, SYS_RES_IRQ, k, intr[i], intr[i],
52867dbd33cSNathan Whitehorn 			    1);
52958158742SRafal Jaworowski 		}
53058158742SRafal Jaworowski 		free(intr, M_OFWPROP);
53167dbd33cSNathan Whitehorn 	}
53267dbd33cSNathan Whitehorn 
53367dbd33cSNathan Whitehorn 	return (0);
53458158742SRafal Jaworowski }
53558158742SRafal Jaworowski 
53658158742SRafal Jaworowski int
537aa15e881SRafal Jaworowski fdt_get_phyaddr(phandle_t node, device_t dev, int *phy_addr, void **phy_sc)
53858158742SRafal Jaworowski {
53958158742SRafal Jaworowski 	phandle_t phy_node;
54058158742SRafal Jaworowski 	pcell_t phy_handle, phy_reg;
541aa15e881SRafal Jaworowski 	uint32_t i;
542aa15e881SRafal Jaworowski 	device_t parent, child;
54358158742SRafal Jaworowski 
544755c9591SNathan Whitehorn 	if (OF_getencprop(node, "phy-handle", (void *)&phy_handle,
54558158742SRafal Jaworowski 	    sizeof(phy_handle)) <= 0)
54658158742SRafal Jaworowski 		return (ENXIO);
54758158742SRafal Jaworowski 
548*752ba930SIan Lepore 	phy_node = OF_node_from_xref(phy_handle);
54958158742SRafal Jaworowski 
55058158742SRafal Jaworowski 	if (OF_getprop(phy_node, "reg", (void *)&phy_reg,
55158158742SRafal Jaworowski 	    sizeof(phy_reg)) <= 0)
55258158742SRafal Jaworowski 		return (ENXIO);
55358158742SRafal Jaworowski 
55458158742SRafal Jaworowski 	*phy_addr = fdt32_to_cpu(phy_reg);
555aa15e881SRafal Jaworowski 
556aa15e881SRafal Jaworowski 	/*
557aa15e881SRafal Jaworowski 	 * Search for softc used to communicate with phy.
558aa15e881SRafal Jaworowski 	 */
559aa15e881SRafal Jaworowski 
560aa15e881SRafal Jaworowski 	/*
561aa15e881SRafal Jaworowski 	 * Step 1: Search for ancestor of the phy-node with a "phy-handle"
562aa15e881SRafal Jaworowski 	 * property set.
563aa15e881SRafal Jaworowski 	 */
564aa15e881SRafal Jaworowski 	phy_node = OF_parent(phy_node);
565aa15e881SRafal Jaworowski 	while (phy_node != 0) {
566aa15e881SRafal Jaworowski 		if (OF_getprop(phy_node, "phy-handle", (void *)&phy_handle,
567aa15e881SRafal Jaworowski 		    sizeof(phy_handle)) > 0)
568aa15e881SRafal Jaworowski 			break;
569aa15e881SRafal Jaworowski 		phy_node = OF_parent(phy_node);
570aa15e881SRafal Jaworowski 	}
571aa15e881SRafal Jaworowski 	if (phy_node == 0)
572aa15e881SRafal Jaworowski 		return (ENXIO);
573aa15e881SRafal Jaworowski 
574aa15e881SRafal Jaworowski 	/*
575aa15e881SRafal Jaworowski 	 * Step 2: For each device with the same parent and name as ours
576aa15e881SRafal Jaworowski 	 * compare its node with the one found in step 1, ancestor of phy
577aa15e881SRafal Jaworowski 	 * node (stored in phy_node).
578aa15e881SRafal Jaworowski 	 */
579aa15e881SRafal Jaworowski 	parent = device_get_parent(dev);
580aa15e881SRafal Jaworowski 	i = 0;
581aa15e881SRafal Jaworowski 	child = device_find_child(parent, device_get_name(dev), i);
582aa15e881SRafal Jaworowski 	while (child != NULL) {
583aa15e881SRafal Jaworowski 		if (ofw_bus_get_node(child) == phy_node)
584aa15e881SRafal Jaworowski 			break;
585aa15e881SRafal Jaworowski 		i++;
586aa15e881SRafal Jaworowski 		child = device_find_child(parent, device_get_name(dev), i);
587aa15e881SRafal Jaworowski 	}
588aa15e881SRafal Jaworowski 	if (child == NULL)
589aa15e881SRafal Jaworowski 		return (ENXIO);
590aa15e881SRafal Jaworowski 
591aa15e881SRafal Jaworowski 	/*
592aa15e881SRafal Jaworowski 	 * Use softc of the device found.
593aa15e881SRafal Jaworowski 	 */
594aa15e881SRafal Jaworowski 	*phy_sc = (void *)device_get_softc(child);
595aa15e881SRafal Jaworowski 
59658158742SRafal Jaworowski 	return (0);
59758158742SRafal Jaworowski }
59858158742SRafal Jaworowski 
59958158742SRafal Jaworowski int
6001d1ffd9eSOleksandr Tymoshenko fdt_get_reserved_regions(struct mem_region *mr, int *mrcnt)
6011d1ffd9eSOleksandr Tymoshenko {
6021d1ffd9eSOleksandr Tymoshenko 	pcell_t reserve[FDT_REG_CELLS * FDT_MEM_REGIONS];
6031d1ffd9eSOleksandr Tymoshenko 	pcell_t *reservep;
6041d1ffd9eSOleksandr Tymoshenko 	phandle_t memory, root;
6051d1ffd9eSOleksandr Tymoshenko 	uint32_t memory_size;
6061d1ffd9eSOleksandr Tymoshenko 	int addr_cells, size_cells;
6071d1ffd9eSOleksandr Tymoshenko 	int i, max_size, res_len, rv, tuple_size, tuples;
6081d1ffd9eSOleksandr Tymoshenko 
6091d1ffd9eSOleksandr Tymoshenko 	max_size = sizeof(reserve);
6101d1ffd9eSOleksandr Tymoshenko 	root = OF_finddevice("/");
6111d1ffd9eSOleksandr Tymoshenko 	memory = OF_finddevice("/memory");
6121d1ffd9eSOleksandr Tymoshenko 	if (memory == -1) {
6131d1ffd9eSOleksandr Tymoshenko 		rv = ENXIO;
6141d1ffd9eSOleksandr Tymoshenko 		goto out;
6151d1ffd9eSOleksandr Tymoshenko 	}
6161d1ffd9eSOleksandr Tymoshenko 
6171d1ffd9eSOleksandr Tymoshenko 	if ((rv = fdt_addrsize_cells(OF_parent(memory), &addr_cells,
6181d1ffd9eSOleksandr Tymoshenko 	    &size_cells)) != 0)
6191d1ffd9eSOleksandr Tymoshenko 		goto out;
6201d1ffd9eSOleksandr Tymoshenko 
6211d1ffd9eSOleksandr Tymoshenko 	if (addr_cells > 2) {
6221d1ffd9eSOleksandr Tymoshenko 		rv = ERANGE;
6231d1ffd9eSOleksandr Tymoshenko 		goto out;
6241d1ffd9eSOleksandr Tymoshenko 	}
6251d1ffd9eSOleksandr Tymoshenko 
6261d1ffd9eSOleksandr Tymoshenko 	tuple_size = sizeof(pcell_t) * (addr_cells + size_cells);
6271d1ffd9eSOleksandr Tymoshenko 
6281d1ffd9eSOleksandr Tymoshenko 	res_len = OF_getproplen(root, "memreserve");
6291d1ffd9eSOleksandr Tymoshenko 	if (res_len <= 0 || res_len > sizeof(reserve)) {
6301d1ffd9eSOleksandr Tymoshenko 		rv = ERANGE;
6311d1ffd9eSOleksandr Tymoshenko 		goto out;
6321d1ffd9eSOleksandr Tymoshenko 	}
6331d1ffd9eSOleksandr Tymoshenko 
6341d1ffd9eSOleksandr Tymoshenko 	if (OF_getprop(root, "memreserve", reserve, res_len) <= 0) {
6351d1ffd9eSOleksandr Tymoshenko 		rv = ENXIO;
6361d1ffd9eSOleksandr Tymoshenko 		goto out;
6371d1ffd9eSOleksandr Tymoshenko 	}
6381d1ffd9eSOleksandr Tymoshenko 
6391d1ffd9eSOleksandr Tymoshenko 	memory_size = 0;
6401d1ffd9eSOleksandr Tymoshenko 	tuples = res_len / tuple_size;
6411d1ffd9eSOleksandr Tymoshenko 	reservep = (pcell_t *)&reserve;
6421d1ffd9eSOleksandr Tymoshenko 	for (i = 0; i < tuples; i++) {
6431d1ffd9eSOleksandr Tymoshenko 
6441d1ffd9eSOleksandr Tymoshenko 		rv = fdt_data_to_res(reservep, addr_cells, size_cells,
6451d1ffd9eSOleksandr Tymoshenko 			(u_long *)&mr[i].mr_start, (u_long *)&mr[i].mr_size);
6461d1ffd9eSOleksandr Tymoshenko 
6471d1ffd9eSOleksandr Tymoshenko 		if (rv != 0)
6481d1ffd9eSOleksandr Tymoshenko 			goto out;
6491d1ffd9eSOleksandr Tymoshenko 
6501d1ffd9eSOleksandr Tymoshenko 		reservep += addr_cells + size_cells;
6511d1ffd9eSOleksandr Tymoshenko 	}
6521d1ffd9eSOleksandr Tymoshenko 
6531d1ffd9eSOleksandr Tymoshenko 	*mrcnt = i;
6541d1ffd9eSOleksandr Tymoshenko 	rv = 0;
6551d1ffd9eSOleksandr Tymoshenko out:
6561d1ffd9eSOleksandr Tymoshenko 	return (rv);
6571d1ffd9eSOleksandr Tymoshenko }
6581d1ffd9eSOleksandr Tymoshenko 
6591d1ffd9eSOleksandr Tymoshenko int
66058158742SRafal Jaworowski fdt_get_mem_regions(struct mem_region *mr, int *mrcnt, uint32_t *memsize)
66158158742SRafal Jaworowski {
66258158742SRafal Jaworowski 	pcell_t reg[FDT_REG_CELLS * FDT_MEM_REGIONS];
66358158742SRafal Jaworowski 	pcell_t *regp;
66458158742SRafal Jaworowski 	phandle_t memory;
66558158742SRafal Jaworowski 	uint32_t memory_size;
66658158742SRafal Jaworowski 	int addr_cells, size_cells;
66758158742SRafal Jaworowski 	int i, max_size, reg_len, rv, tuple_size, tuples;
66858158742SRafal Jaworowski 
66958158742SRafal Jaworowski 	max_size = sizeof(reg);
67058158742SRafal Jaworowski 	memory = OF_finddevice("/memory");
67107042befSJayachandran C. 	if (memory == -1) {
67258158742SRafal Jaworowski 		rv = ENXIO;
67358158742SRafal Jaworowski 		goto out;
67458158742SRafal Jaworowski 	}
67558158742SRafal Jaworowski 
67658158742SRafal Jaworowski 	if ((rv = fdt_addrsize_cells(OF_parent(memory), &addr_cells,
67758158742SRafal Jaworowski 	    &size_cells)) != 0)
67858158742SRafal Jaworowski 		goto out;
67958158742SRafal Jaworowski 
68058158742SRafal Jaworowski 	if (addr_cells > 2) {
68158158742SRafal Jaworowski 		rv = ERANGE;
68258158742SRafal Jaworowski 		goto out;
68358158742SRafal Jaworowski 	}
68458158742SRafal Jaworowski 
68558158742SRafal Jaworowski 	tuple_size = sizeof(pcell_t) * (addr_cells + size_cells);
68658158742SRafal Jaworowski 	reg_len = OF_getproplen(memory, "reg");
68758158742SRafal Jaworowski 	if (reg_len <= 0 || reg_len > sizeof(reg)) {
68858158742SRafal Jaworowski 		rv = ERANGE;
68958158742SRafal Jaworowski 		goto out;
69058158742SRafal Jaworowski 	}
69158158742SRafal Jaworowski 
69258158742SRafal Jaworowski 	if (OF_getprop(memory, "reg", reg, reg_len) <= 0) {
69358158742SRafal Jaworowski 		rv = ENXIO;
69458158742SRafal Jaworowski 		goto out;
69558158742SRafal Jaworowski 	}
69658158742SRafal Jaworowski 
69758158742SRafal Jaworowski 	memory_size = 0;
69858158742SRafal Jaworowski 	tuples = reg_len / tuple_size;
69958158742SRafal Jaworowski 	regp = (pcell_t *)&reg;
70058158742SRafal Jaworowski 	for (i = 0; i < tuples; i++) {
70158158742SRafal Jaworowski 
70258158742SRafal Jaworowski 		rv = fdt_data_to_res(regp, addr_cells, size_cells,
70358158742SRafal Jaworowski 			(u_long *)&mr[i].mr_start, (u_long *)&mr[i].mr_size);
70458158742SRafal Jaworowski 
70558158742SRafal Jaworowski 		if (rv != 0)
70658158742SRafal Jaworowski 			goto out;
70758158742SRafal Jaworowski 
70858158742SRafal Jaworowski 		regp += addr_cells + size_cells;
70958158742SRafal Jaworowski 		memory_size += mr[i].mr_size;
71058158742SRafal Jaworowski 	}
71158158742SRafal Jaworowski 
71258158742SRafal Jaworowski 	if (memory_size == 0) {
71358158742SRafal Jaworowski 		rv = ERANGE;
71458158742SRafal Jaworowski 		goto out;
71558158742SRafal Jaworowski 	}
71658158742SRafal Jaworowski 
71758158742SRafal Jaworowski 	*mrcnt = i;
71858158742SRafal Jaworowski 	*memsize = memory_size;
71958158742SRafal Jaworowski 	rv = 0;
72058158742SRafal Jaworowski out:
72158158742SRafal Jaworowski 	return (rv);
72258158742SRafal Jaworowski }
7232c990564SGrzegorz Bernacki 
7242c990564SGrzegorz Bernacki int
7252c990564SGrzegorz Bernacki fdt_get_unit(device_t dev)
7262c990564SGrzegorz Bernacki {
7272c990564SGrzegorz Bernacki 	const char * name;
7282c990564SGrzegorz Bernacki 
7292c990564SGrzegorz Bernacki 	name = ofw_bus_get_name(dev);
7302c990564SGrzegorz Bernacki 	name = strchr(name, '@') + 1;
7312c990564SGrzegorz Bernacki 
7322c990564SGrzegorz Bernacki 	return (strtol(name,NULL,0));
7332c990564SGrzegorz Bernacki }
734