--- a/baseport/src/cedar/generic/base/syborg/svpplatform/libfdt/fdt_rw.c	Fri Jul 31 15:01:17 2009 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,471 +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"
-
-static int _blocks_misordered(const void *fdt,
-			      int mem_rsv_size, int struct_size)
-{
-	return (fdt_off_mem_rsvmap(fdt) < ALIGN(sizeof(struct fdt_header), 8))
-		|| (fdt_off_dt_struct(fdt) <
-		    (fdt_off_mem_rsvmap(fdt) + mem_rsv_size))
-		|| (fdt_off_dt_strings(fdt) <
-		    (fdt_off_dt_struct(fdt) + struct_size))
-		|| (fdt_totalsize(fdt) <
-		    (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));
-}
-
-static int rw_check_header(void *fdt)
-{
-	int err;
-
-	if ((err = fdt_check_header(fdt)))
-		return err;
-	if (fdt_version(fdt) < 17)
-		return -FDT_ERR_BADVERSION;
-	if (_blocks_misordered(fdt, sizeof(struct fdt_reserve_entry),
-			       fdt_size_dt_struct(fdt)))
-		return -FDT_ERR_BADLAYOUT;
-	if (fdt_version(fdt) > 17)
-		fdt_set_version(fdt, 17);
-
-	return 0;
-}
-
-#define RW_CHECK_HEADER(fdt) \
-	{ \
-		int err; \
-		if ((err = rw_check_header(fdt)) != 0) \
-			return err; \
-	}
-
-static inline int _blob_data_size(void *fdt)
-{
-	return fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
-}
-
-static int _blob_splice(void *fdt, void *p, int oldlen, int newlen)
-{
-	void *end = fdt + _blob_data_size(fdt);
-
-	if (((p + oldlen) < p) || ((p + oldlen) > end))
-		return -FDT_ERR_BADOFFSET;
-	if ((end - oldlen + newlen) > (fdt + fdt_totalsize(fdt)))
-		return -FDT_ERR_NOSPACE;
-	memmove(p + newlen, p + oldlen, end - p - oldlen);
-	return 0;
-}
-
-static int _blob_splice_mem_rsv(void *fdt, struct fdt_reserve_entry *p,
-				int oldn, int newn)
-{
-	int delta = (newn - oldn) * sizeof(*p);
-	int err;
-	err = _blob_splice(fdt, p, oldn * sizeof(*p), newn * sizeof(*p));
-	if (err)
-		return err;
-	fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta);
-	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
-	return 0;
-}
-
-static int _blob_splice_struct(void *fdt, void *p,
-			       int oldlen, int newlen)
-{
-	int delta = newlen - oldlen;
-	int err;
-
-	if ((err = _blob_splice(fdt, p, oldlen, newlen)))
-		return err;
-
-	fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);
-	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
-	return 0;
-}
-
-static int _blob_splice_string(void *fdt, int newlen)
-{
-	void *p = fdt + fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
-	int err;
-
-	if ((err = _blob_splice(fdt, p, 0, newlen)))
-		return err;
-
-	fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen);
-	return 0;
-}
-
-static int _find_add_string(void *fdt, const char *s)
-{
-	char *strtab = (char *)fdt + fdt_off_dt_strings(fdt);
-	const char *p;
-	char *new;
-	int len = strlen(s) + 1;
-	int err;
-
-	p = _fdt_find_string(strtab, fdt_size_dt_strings(fdt), s);
-	if (p)
-		/* found it */
-		return (p - strtab);
-
-	new = strtab + fdt_size_dt_strings(fdt);
-	err = _blob_splice_string(fdt, len);
-	if (err)
-		return err;
-
-	memcpy(new, s, len);
-	return (new - strtab);
-}
-
-int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size)
-{
-	struct fdt_reserve_entry *re;
-	int err;
-
-	if ((err = rw_check_header(fdt)))
-		return err;
-
-	re = _fdt_mem_rsv_w(fdt, fdt_num_mem_rsv(fdt));
-	err = _blob_splice_mem_rsv(fdt, re, 0, 1);
-	if (err)
-		return err;
-
-	re->address = cpu_to_fdt64(address);
-	re->size = cpu_to_fdt64(size);
-	return 0;
-}
-
-int fdt_del_mem_rsv(void *fdt, int n)
-{
-	struct fdt_reserve_entry *re = _fdt_mem_rsv_w(fdt, n);
-	int err;
-
-	if ((err = rw_check_header(fdt)))
-		return err;
-	if (n >= fdt_num_mem_rsv(fdt))
-		return -FDT_ERR_NOTFOUND;
-
-	err = _blob_splice_mem_rsv(fdt, re, 1, 0);
-	if (err)
-		return err;
-	return 0;
-}
-
-static int _resize_property(void *fdt, int nodeoffset, const char *name, int len,
-			    struct fdt_property **prop)
-{
-	int oldlen;
-	int err;
-
-	*prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
-	if (! (*prop))
-		return oldlen;
-
-	if ((err = _blob_splice_struct(fdt, (*prop)->data,
-				       ALIGN(oldlen, FDT_TAGSIZE),
-				       ALIGN(len, FDT_TAGSIZE))))
-		return err;
-
-	(*prop)->len = cpu_to_fdt32(len);
-	return 0;
-}
-
-static int _add_property(void *fdt, int nodeoffset, const char *name, int len,
-			 struct fdt_property **prop)
-{
-	uint32_t tag;
-	int proplen;
-	int nextoffset;
-	int namestroff;
-	int err;
-
-	tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
-	if (tag != FDT_BEGIN_NODE)
-		return -FDT_ERR_BADOFFSET;
-
-	namestroff = _find_add_string(fdt, name);
-	if (namestroff < 0)
-		return namestroff;
-
-	*prop = _fdt_offset_ptr_w(fdt, nextoffset);
-	proplen = sizeof(**prop) + ALIGN(len, FDT_TAGSIZE);
-
-	err = _blob_splice_struct(fdt, *prop, 0, proplen);
-	if (err)
-		return err;
-
-	(*prop)->tag = cpu_to_fdt32(FDT_PROP);
-	(*prop)->nameoff = cpu_to_fdt32(namestroff);
-	(*prop)->len = cpu_to_fdt32(len);
-	return 0;
-}
-
-int fdt_set_name(void *fdt, int nodeoffset, const char *name)
-{
-	char *namep;
-	int oldlen, newlen;
-	int err;
-
-	if ((err = rw_check_header(fdt)))
-		return err;
-
-	namep = (char *)fdt_get_name(fdt, nodeoffset, &oldlen);
-	if (!namep)
-		return oldlen;
-
-	newlen = strlen(name);
-
-	err = _blob_splice_struct(fdt, namep, ALIGN(oldlen+1, FDT_TAGSIZE),
-				  ALIGN(newlen+1, FDT_TAGSIZE));
-	if (err)
-		return err;
-
-	memcpy(namep, name, newlen+1);
-	return 0;
-}
-
-int fdt_setprop(void *fdt, int nodeoffset, const char *name,
-		const void *val, int len)
-{
-	struct fdt_property *prop;
-	int err;
-
-	if ((err = rw_check_header(fdt)))
-		return err;
-
-	err = _resize_property(fdt, nodeoffset, name, len, &prop);
-	if (err == -FDT_ERR_NOTFOUND)
-		err = _add_property(fdt, nodeoffset, name, len, &prop);
-	if (err)
-		return err;
-
-	memcpy(prop->data, val, len);
-	return 0;
-}
-
-int fdt_delprop(void *fdt, int nodeoffset, const char *name)
-{
-	struct fdt_property *prop;
-	int len, proplen;
-
-	RW_CHECK_HEADER(fdt);
-
-	prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
-	if (! prop)
-		return len;
-
-	proplen = sizeof(*prop) + ALIGN(len, FDT_TAGSIZE);
-	return _blob_splice_struct(fdt, prop, proplen, 0);
-}
-
-int fdt_add_subnode_namelen(void *fdt, int parentoffset,
-			    const char *name, int namelen)
-{
-	struct fdt_node_header *nh;
-	int offset, nextoffset;
-	int nodelen;
-	int err;
-	uint32_t tag;
-	uint32_t *endtag;
-
-	RW_CHECK_HEADER(fdt);
-
-	offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen);
-	if (offset >= 0)
-		return -FDT_ERR_EXISTS;
-	else if (offset != -FDT_ERR_NOTFOUND)
-		return offset;
-
-	/* Try to place the new node after the parent's properties */
-	fdt_next_tag(fdt, parentoffset, &nextoffset); /* skip the BEGIN_NODE */
-	do {
-		offset = nextoffset;
-		tag = fdt_next_tag(fdt, offset, &nextoffset);
-	} while (tag == FDT_PROP);
-
-	nh = _fdt_offset_ptr_w(fdt, offset);
-	nodelen = sizeof(*nh) + ALIGN(namelen+1, FDT_TAGSIZE) + FDT_TAGSIZE;
-
-	err = _blob_splice_struct(fdt, nh, 0, nodelen);
-	if (err)
-		return err;
-
-	nh->tag = cpu_to_fdt32(FDT_BEGIN_NODE);
-	memset(nh->name, 0, ALIGN(namelen+1, FDT_TAGSIZE));
-	memcpy(nh->name, name, namelen);
-	endtag = (uint32_t *)((void *)nh + nodelen - FDT_TAGSIZE);
-	*endtag = cpu_to_fdt32(FDT_END_NODE);
-
-	return offset;
-}
-
-int fdt_add_subnode(void *fdt, int parentoffset, const char *name)
-{
-	return fdt_add_subnode_namelen(fdt, parentoffset, name, strlen(name));
-}
-
-int fdt_del_node(void *fdt, int nodeoffset)
-{
-	int endoffset;
-
-	RW_CHECK_HEADER(fdt);
-
-	endoffset = _fdt_node_end_offset(fdt, nodeoffset);
-	if (endoffset < 0)
-		return endoffset;
-
-	return _blob_splice_struct(fdt, _fdt_offset_ptr_w(fdt, nodeoffset),
-				   endoffset - nodeoffset, 0);
-}
-
-static void _packblocks(const void *fdt, void *buf,
-		       int mem_rsv_size, int struct_size)
-{
-	int mem_rsv_off, struct_off, strings_off;
-
-	mem_rsv_off = ALIGN(sizeof(struct fdt_header), 8);
-	struct_off = mem_rsv_off + mem_rsv_size;
-	strings_off = struct_off + struct_size;
-
-	memmove(buf + mem_rsv_off, fdt + fdt_off_mem_rsvmap(fdt), mem_rsv_size);
-	fdt_set_off_mem_rsvmap(buf, mem_rsv_off);
-
-	memmove(buf + struct_off, fdt + fdt_off_dt_struct(fdt), struct_size);
-	fdt_set_off_dt_struct(buf, struct_off);
-	fdt_set_size_dt_struct(buf, struct_size);
-
-	memmove(buf + strings_off, fdt + fdt_off_dt_strings(fdt),
-		fdt_size_dt_strings(fdt));
-	fdt_set_off_dt_strings(buf, strings_off);
-	fdt_set_size_dt_strings(buf, fdt_size_dt_strings(fdt));
-}
-
-int fdt_open_into(const void *fdt, void *buf, int bufsize)
-{
-	int err;
-	int mem_rsv_size, struct_size;
-	int newsize;
-	void *tmp;
-
-	err = fdt_check_header(fdt);
-	if (err)
-		return err;
-
-	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
-		* sizeof(struct fdt_reserve_entry);
-
-	if (fdt_version(fdt) >= 17) {
-		struct_size = fdt_size_dt_struct(fdt);
-	} else {
-		struct_size = 0;
-		while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)
-			;
-	}
-
-	if (!_blocks_misordered(fdt, mem_rsv_size, struct_size)) {
-		/* no further work necessary */
-		err = fdt_move(fdt, buf, bufsize);
-		if (err)
-			return err;
-		fdt_set_version(buf, 17);
-		fdt_set_size_dt_struct(buf, struct_size);
-		fdt_set_totalsize(buf, bufsize);
-		return 0;
-	}
-
-	/* Need to reorder */
-	newsize = ALIGN(sizeof(struct fdt_header), 8) + mem_rsv_size
-		+ struct_size + fdt_size_dt_strings(fdt);
-
-	if (bufsize < newsize)
-		return -FDT_ERR_NOSPACE;
-
-	if (((buf + newsize) <= fdt)
-	    || (buf >= (fdt + fdt_totalsize(fdt)))) {
-		tmp = buf;
-	} else {
-		tmp = (void *)fdt + fdt_totalsize(fdt);
-		if ((tmp + newsize) > (buf + bufsize))
-			return -FDT_ERR_NOSPACE;
-	}
-
-	_packblocks(fdt, tmp, mem_rsv_size, struct_size);
-	memmove(buf, tmp, newsize);
-
-	fdt_set_magic(buf, FDT_MAGIC);
-	fdt_set_totalsize(buf, bufsize);
-	fdt_set_version(buf, 17);
-	fdt_set_last_comp_version(buf, 16);
-	fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt));
-
-	return 0;
-}
-
-int fdt_pack(void *fdt)
-{
-	int mem_rsv_size;
-	int err;
-
-	err = rw_check_header(fdt);
-	if (err)
-		return err;
-
-	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
-		* sizeof(struct fdt_reserve_entry);
-	_packblocks(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));
-	fdt_set_totalsize(fdt, _blob_data_size(fdt));
-
-	return 0;
-}