--- a/baseport/src/cedar/generic/base/syborg/svpplatform/libfdt/fdt_ro.c	Fri Jul 31 15:01:17 2009 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,583 +0,0 @@
-/*
- * libfdt - Flat Device Tree manipulation
- * Copyright (C) 2006 David Gibson, IBM Corporation.
- *
- * libfdt is dual licensed: you can use it either under the terms of
- * the GPL, or the BSD license, at your option.
- *
- *  a) This library 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 of the
- *     License, or (at your option) any later version.
- *
- *     This library 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 library; if not, write to the Free
- *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- *     MA 02110-1301 USA
- *
- * Alternatively,
- *
- *  b) Redistribution and use in source and binary forms, with or
- *     without modification, are permitted provided that the following
- *     conditions are met:
- *
- *     1. Redistributions of source code must retain the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer.
- *     2. Redistributions in binary form must reproduce the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer in the documentation and/or other materials
- *        provided with the distribution.
- *
- *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "libfdt_env.h"
-
-#include <fdt.h>
-#include <libfdt.h>
-
-#include "libfdt_internal.h"
-
-#define CHECK_HEADER(fdt) \
-	{ \
-		int err; \
-		if ((err = fdt_check_header(fdt)) != 0) \
-			return err; \
-	}
-
-static int nodename_eq(const void *fdt, int offset,
-		       const char *s, int len)
-{
-	const char *p = fdt_offset_ptr(fdt, offset, len+1);
-
-	if (! p)
-		/* short match */
-		return 0;
-
-	if (memcmp(p, s, len) != 0)
-		return 0;
-
-	if (p[len] == '\0')
-		return 1;
-	else if (!memchr(s, '@', len) && (p[len] == '@'))
-		return 1;
-	else
-		return 0;
-}
-
-const char *fdt_string(const void *fdt, int stroffset)
-{
-	return (char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
-}
-
-int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size)
-{
-	CHECK_HEADER(fdt);
-	*address = fdt64_to_cpu(_fdt_mem_rsv(fdt, n)->address);
-	*size = fdt64_to_cpu(_fdt_mem_rsv(fdt, n)->size);
-	return 0;
-}
-
-int fdt_num_mem_rsv(const void *fdt)
-{
-	int i = 0;
-
-	while (fdt64_to_cpu(_fdt_mem_rsv(fdt, i)->size) != 0)
-		i++;
-	return i;
-}
-
-int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
-			       const char *name, int namelen)
-{
-	int level = 0;
-	uint32_t tag;
-	int offset, nextoffset;
-
-	CHECK_HEADER(fdt);
-
-	tag = fdt_next_tag(fdt, parentoffset, &nextoffset);
-	if (tag != FDT_BEGIN_NODE)
-		return -FDT_ERR_BADOFFSET;
-
-	do {
-		offset = nextoffset;
-		tag = fdt_next_tag(fdt, offset, &nextoffset);
-
-		switch (tag) {
-		case FDT_END:
-			return -FDT_ERR_TRUNCATED;
-
-		case FDT_BEGIN_NODE:
-			level++;
-			if (level != 1)
-				continue;
-			if (nodename_eq(fdt, offset+FDT_TAGSIZE, name, namelen))
-				/* Found it! */
-				return offset;
-			break;
-
-		case FDT_END_NODE:
-			level--;
-			break;
-
-		case FDT_PROP:
-		case FDT_NOP:
-			break;
-
-		default:
-			return -FDT_ERR_BADSTRUCTURE;
-		}
-	} while (level >= 0);
-
-	return -FDT_ERR_NOTFOUND;
-}
-
-int fdt_subnode_offset(const void *fdt, int parentoffset,
-		       const char *name)
-{
-	return fdt_subnode_offset_namelen(fdt, parentoffset, name, strlen(name));
-}
-
-int fdt_path_offset(const void *fdt, const char *path)
-{
-	const char *end = path + strlen(path);
-	const char *p = path;
-	int offset = 0;
-
-	CHECK_HEADER(fdt);
-
-	if (*path != '/')
-		return -FDT_ERR_BADPATH;
-
-	while (*p) {
-		const char *q;
-
-		while (*p == '/')
-			p++;
-		if (! *p)
-			return offset;
-		q = strchr(p, '/');
-		if (! q)
-			q = end;
-
-		offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
-		if (offset < 0)
-			return offset;
-
-		p = q;
-	}
-
-	return offset;
-}
-
-const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
-{
-	const struct fdt_node_header *nh;
-	int err;
-
-	if ((err = fdt_check_header(fdt)) != 0)
-		goto fail;
-
-	err = -FDT_ERR_BADOFFSET;
-	nh = fdt_offset_ptr(fdt, nodeoffset, sizeof(*nh));
-	if (!nh || (fdt32_to_cpu(nh->tag) != FDT_BEGIN_NODE))
-		goto fail;
-
-	if (len)
-		*len = strlen(nh->name);
-
-	return nh->name;
-
- fail:
-	if (len)
-		*len = err;
-	return NULL;
-}
-
-const struct fdt_property *fdt_get_property(const void *fdt,
-					    int nodeoffset,
-					    const char *name, int *lenp)
-{
-	uint32_t tag;
-	const struct fdt_property *prop;
-	int namestroff;
-	int offset, nextoffset;
-	int err;
-
-	if ((err = fdt_check_header(fdt)) != 0)
-		goto fail;
-
-	err = -FDT_ERR_BADOFFSET;
-	if (nodeoffset % FDT_TAGSIZE)
-		goto fail;
-
-	tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
-	if (tag != FDT_BEGIN_NODE)
-		goto fail;
-
-	do {
-		offset = nextoffset;
-
-		tag = fdt_next_tag(fdt, offset, &nextoffset);
-		switch (tag) {
-		case FDT_END:
-			err = -FDT_ERR_TRUNCATED;
-			goto fail;
-
-		case FDT_BEGIN_NODE:
-		case FDT_END_NODE:
-		case FDT_NOP:
-			break;
-
-		case FDT_PROP:
-			err = -FDT_ERR_BADSTRUCTURE;
-			prop = fdt_offset_ptr(fdt, offset, sizeof(*prop));
-			if (! prop)
-				goto fail;
-			namestroff = fdt32_to_cpu(prop->nameoff);
-			if (streq(fdt_string(fdt, namestroff), name)) {
-				/* Found it! */
-				int len = fdt32_to_cpu(prop->len);
-				prop = fdt_offset_ptr(fdt, offset,
-						      sizeof(*prop)+len);
-				if (! prop)
-					goto fail;
-
-				if (lenp)
-					*lenp = len;
-
-				return prop;
-			}
-			break;
-
-		default:
-			err = -FDT_ERR_BADSTRUCTURE;
-			goto fail;
-		}
-	} while ((tag != FDT_BEGIN_NODE) && (tag != FDT_END_NODE));
-
-	err = -FDT_ERR_NOTFOUND;
- fail:
-	if (lenp)
-		*lenp = err;
-	return NULL;
-}
-
-const void *fdt_getprop(const void *fdt, int nodeoffset,
-		  const char *name, int *lenp)
-{
-	const struct fdt_property *prop;
-
-	prop = fdt_get_property(fdt, nodeoffset, name, lenp);
-	if (! prop)
-		return NULL;
-
-	return prop->data;
-}
-
-uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
-{
-	const uint32_t *php;
-	int len;
-
-	php = fdt_getprop(fdt, nodeoffset, "linux,phandle", &len);
-	if (!php || (len != sizeof(*php)))
-		return 0;
-
-	return fdt32_to_cpu(*php);
-}
-
-int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
-{
-	uint32_t tag;
-	int p = 0, overflow = 0;
-	int offset, nextoffset, namelen;
-	const char *name;
-
-	CHECK_HEADER(fdt);
-
-	tag = fdt_next_tag(fdt, 0, &nextoffset);
-	if (tag != FDT_BEGIN_NODE)
-		return -FDT_ERR_BADSTRUCTURE;
-
-	if (buflen < 2)
-		return -FDT_ERR_NOSPACE;
-	buf[0] = '/';
-	p = 1;
-
-	while (nextoffset <= nodeoffset) {
-		offset = nextoffset;
-		tag = fdt_next_tag(fdt, offset, &nextoffset);
-		switch (tag) {
-		case FDT_END:
-			return -FDT_ERR_BADOFFSET;
-
-		case FDT_BEGIN_NODE:
-			name = fdt_get_name(fdt, offset, &namelen);
-			if (!name)
-				return namelen;
-			if (overflow || ((p + namelen + 1) > buflen)) {
-				overflow++;
-				break;
-			}
-			memcpy(buf + p, name, namelen);
-			p += namelen;
-			buf[p++] = '/';
-			break;
-
-		case FDT_END_NODE:
-			if (overflow) {
-				overflow--;
-				break;
-			}
-			do {
-				p--;
-			} while  (buf[p-1] != '/');
-			break;
-
-		case FDT_PROP:
-		case FDT_NOP:
-			break;
-
-		default:
-			return -FDT_ERR_BADSTRUCTURE;
-		}
-	}
-
-	if (overflow)
-		return -FDT_ERR_NOSPACE;
-
-	if (p > 1) /* special case so that root path is "/", not "" */
-		p--;
-	buf[p] = '\0';
-	return p;
-}
-
-int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
-				 int supernodedepth, int *nodedepth)
-{
-	int level = -1;
-	uint32_t tag;
-	int offset, nextoffset = 0;
-	int supernodeoffset = -FDT_ERR_INTERNAL;
-
-	CHECK_HEADER(fdt);
-
-	if (supernodedepth < 0)
-		return -FDT_ERR_NOTFOUND;
-
-	do {
-		offset = nextoffset;
-		tag = fdt_next_tag(fdt, offset, &nextoffset);
-		switch (tag) {
-		case FDT_END:
-			return -FDT_ERR_BADOFFSET;
-
-		case FDT_BEGIN_NODE:
-			level++;
-			if (level == supernodedepth)
-				supernodeoffset = offset;
-			break;
-
-		case FDT_END_NODE:
-			level--;
-			break;
-
-		case FDT_PROP:
-		case FDT_NOP:
-			break;
-
-		default:
-			return -FDT_ERR_BADSTRUCTURE;
-		}
-	} while (offset < nodeoffset);
-
-	if (nodedepth)
-		*nodedepth = level;
-
-	if (supernodedepth > level)
-		return -FDT_ERR_NOTFOUND;
-	return supernodeoffset;
-}
-
-int fdt_node_depth(const void *fdt, int nodeoffset)
-{
-	int nodedepth;
-	int err;
-
-	err = fdt_supernode_atdepth_offset(fdt, nodeoffset, 0, &nodedepth);
-	if (err)
-		return (err < 0) ? err : -FDT_ERR_INTERNAL;
-	return nodedepth;
-}
-
-int fdt_parent_offset(const void *fdt, int nodeoffset)
-{
-	int nodedepth = fdt_node_depth(fdt, nodeoffset);
-
-	if (nodedepth < 0)
-		return nodedepth;
-	return fdt_supernode_atdepth_offset(fdt, nodeoffset,
-					    nodedepth - 1, NULL);
-}
-
-int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
-				  const char *propname,
-				  const void *propval, int proplen)
-{
-	uint32_t tag;
-	int offset, nextoffset;
-	const void *val;
-	int len;
-
-	CHECK_HEADER(fdt);
-
-	if (startoffset >= 0) {
-		tag = fdt_next_tag(fdt, startoffset, &nextoffset);
-		if (tag != FDT_BEGIN_NODE)
-			return -FDT_ERR_BADOFFSET;
-	} else {
-		nextoffset = 0;
-	}
-
-	/* FIXME: The algorithm here is pretty horrible: we scan each
-	 * property of a node in fdt_getprop(), then if that didn't
-	 * find what we want, we scan over them again making our way
-	 * to the next node.  Still it's the easiest to implement
-	 * approach; performance can come later. */
-	do {
-		offset = nextoffset;
-		tag = fdt_next_tag(fdt, offset, &nextoffset);
-
-		switch (tag) {
-		case FDT_BEGIN_NODE:
-			val = fdt_getprop(fdt, offset, propname, &len);
-			if (val
-			    && (len == proplen)
-			    && (memcmp(val, propval, len) == 0))
-				return offset;
-			break;
-
-		case FDT_PROP:
-		case FDT_END:
-		case FDT_END_NODE:
-		case FDT_NOP:
-			break;
-
-		default:
-			return -FDT_ERR_BADSTRUCTURE;
-		}
-	} while (tag != FDT_END);
-
-	return -FDT_ERR_NOTFOUND;
-}
-
-int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle)
-{
-	if ((phandle == 0) || (phandle == -1))
-		return -FDT_ERR_BADPHANDLE;
-	phandle = cpu_to_fdt32(phandle);
-	return fdt_node_offset_by_prop_value(fdt, -1, "linux,phandle",
-					     &phandle, sizeof(phandle));
-}
-
-int _stringlist_contains(const void *strlist, int listlen, const char *str)
-{
-	int len = strlen(str);
-	const void *p;
-
-	while (listlen >= len) {
-		if (memcmp(str, strlist, len+1) == 0)
-			return 1;
-		p = memchr(strlist, '\0', listlen);
-		if (!p)
-			return 0; /* malformed strlist.. */
-		listlen -= (p-strlist) + 1;
-		strlist = p + 1;
-	}
-	return 0;
-}
-
-int fdt_node_check_compatible(const void *fdt, int nodeoffset,
-			      const char *compatible)
-{
-	const void *prop;
-	int len;
-
-	prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
-	if (!prop)
-		return len;
-	if (_stringlist_contains(prop, len, compatible))
-		return 0;
-	else
-		return 1;
-}
-
-int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
-				  const char *compatible)
-{
-	uint32_t tag;
-	int offset, nextoffset;
-	int err;
-
-	CHECK_HEADER(fdt);
-
-	if (startoffset >= 0) {
-		tag = fdt_next_tag(fdt, startoffset, &nextoffset);
-		if (tag != FDT_BEGIN_NODE)
-			return -FDT_ERR_BADOFFSET;
-	} else {
-		nextoffset = 0;
-	}
-
-	/* FIXME: The algorithm here is pretty horrible: we scan each
-	 * property of a node in fdt_node_check_compatible(), then if
-	 * that didn't find what we want, we scan over them again
-	 * making our way to the next node.  Still it's the easiest to
-	 * implement approach; performance can come later. */
-	do {
-		offset = nextoffset;
-		tag = fdt_next_tag(fdt, offset, &nextoffset);
-
-		switch (tag) {
-		case FDT_BEGIN_NODE:
-			err = fdt_node_check_compatible(fdt, offset,
-							compatible);
-			if ((err < 0)
-			    && (err != -FDT_ERR_NOTFOUND))
-				return err;
-			else if (err == 0)
-				return offset;
-			break;
-
-		case FDT_PROP:
-		case FDT_END:
-		case FDT_END_NODE:
-		case FDT_NOP:
-			break;
-
-		default:
-			return -FDT_ERR_BADSTRUCTURE;
-		}
-	} while (tag != FDT_END);
-
-	return -FDT_ERR_NOTFOUND;
-}