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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH V5 14/15] Update libfdt to v1.4.0
Update libfdt to v1.4.0 of libfdt taken from git://git.jdl.com/software/dtc.git
Xen changes to libfdt_env.h carried over from existing libfdt (v1.3.0)
This update provides the fdt_create_empty_tree() function used by the ARM
EFI boot code.
Signed-off-by: Roy Franz <roy.franz@xxxxxxxxxx>
---
xen/common/libfdt/Makefile.libfdt | 4 +-
xen/common/libfdt/fdt.c | 30 +++-
xen/common/libfdt/fdt_empty_tree.c | 84 ++++++++++
xen/common/libfdt/fdt_ro.c | 7 +-
xen/common/libfdt/fdt_rw.c | 31 +++-
xen/common/libfdt/fdt_sw.c | 4 +-
xen/common/libfdt/fdt_wip.c | 2 +-
xen/common/libfdt/version.lds | 6 +
xen/include/xen/libfdt/fdt.h | 93 ++++++++---
xen/include/xen/libfdt/libfdt.h | 315 +++++++++++++++++++++++++++++++++---
xen/include/xen/libfdt/libfdt_env.h | 4 +
11 files changed, 529 insertions(+), 51 deletions(-)
create mode 100644 xen/common/libfdt/fdt_empty_tree.c
diff --git a/xen/common/libfdt/Makefile.libfdt
b/xen/common/libfdt/Makefile.libfdt
index d55a6f8..91126c0 100644
--- a/xen/common/libfdt/Makefile.libfdt
+++ b/xen/common/libfdt/Makefile.libfdt
@@ -4,7 +4,7 @@
# be easily embeddable into other systems of Makefiles.
#
LIBFDT_soname = libfdt.$(SHAREDLIB_EXT).1
-LIBFDT_INCLUDES = fdt.h libfdt.h
+LIBFDT_INCLUDES = fdt.h libfdt.h libfdt_env.h
LIBFDT_VERSION = version.lds
-LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
+LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
fdt_empty_tree.c
LIBFDT_OBJS = $(LIBFDT_SRCS:%.c=%.o)
diff --git a/xen/common/libfdt/fdt.c b/xen/common/libfdt/fdt.c
index e56833a..2ce6a44 100644
--- a/xen/common/libfdt/fdt.c
+++ b/xen/common/libfdt/fdt.c
@@ -92,7 +92,7 @@ const void *fdt_offset_ptr(const void *fdt, int offset,
unsigned int len)
uint32_t fdt_next_tag(const void *fdt, int startoffset, int *nextoffset)
{
- const uint32_t *tagp, *lenp;
+ const fdt32_t *tagp, *lenp;
uint32_t tag;
int offset = startoffset;
const char *p;
@@ -198,6 +198,34 @@ int fdt_next_node(const void *fdt, int offset, int *depth)
return offset;
}
+int fdt_first_subnode(const void *fdt, int offset)
+{
+ int depth = 0;
+
+ offset = fdt_next_node(fdt, offset, &depth);
+ if (offset < 0 || depth != 1)
+ return -FDT_ERR_NOTFOUND;
+
+ return offset;
+}
+
+int fdt_next_subnode(const void *fdt, int offset)
+{
+ int depth = 1;
+
+ /*
+ * With respect to the parent, the depth of the next subnode will be
+ * the same as the last.
+ */
+ do {
+ offset = fdt_next_node(fdt, offset, &depth);
+ if (offset < 0 || depth < 1)
+ return -FDT_ERR_NOTFOUND;
+ } while (depth > 1);
+
+ return offset;
+}
+
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s)
{
int len = strlen(s) + 1;
diff --git a/xen/common/libfdt/fdt_empty_tree.c
b/xen/common/libfdt/fdt_empty_tree.c
new file mode 100644
index 0000000..f72d13b
--- /dev/null
+++ b/xen/common/libfdt/fdt_empty_tree.c
@@ -0,0 +1,84 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2012 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"
+
+int fdt_create_empty_tree(void *buf, int bufsize)
+{
+ int err;
+
+ err = fdt_create(buf, bufsize);
+ if (err)
+ return err;
+
+ err = fdt_finish_reservemap(buf);
+ if (err)
+ return err;
+
+ err = fdt_begin_node(buf, "");
+ if (err)
+ return err;
+
+ err = fdt_end_node(buf);
+ if (err)
+ return err;
+
+ err = fdt_finish(buf);
+ if (err)
+ return err;
+
+ return fdt_open_into(buf, buf, bufsize);
+}
+
diff --git a/xen/common/libfdt/fdt_ro.c b/xen/common/libfdt/fdt_ro.c
index 02b6d68..50007f6 100644
--- a/xen/common/libfdt/fdt_ro.c
+++ b/xen/common/libfdt/fdt_ro.c
@@ -322,7 +322,7 @@ const void *fdt_getprop(const void *fdt, int nodeoffset,
uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
{
- const uint32_t *php;
+ const fdt32_t *php;
int len;
/* FIXME: This is a bit sub-optimal, since we potentially scan
@@ -515,8 +515,7 @@ int fdt_node_offset_by_phandle(const void *fdt, uint32_t
phandle)
return offset; /* error from fdt_next_node() */
}
-static int _fdt_stringlist_contains(const char *strlist, int listlen,
- const char *str)
+int fdt_stringlist_contains(const char *strlist, int listlen, const char *str)
{
int len = strlen(str);
const char *p;
@@ -542,7 +541,7 @@ int fdt_node_check_compatible(const void *fdt, int
nodeoffset,
prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
if (!prop)
return len;
- if (_fdt_stringlist_contains(prop, len, compatible))
+ if (fdt_stringlist_contains(prop, len, compatible))
return 0;
else
return 1;
diff --git a/xen/common/libfdt/fdt_rw.c b/xen/common/libfdt/fdt_rw.c
index 994037b..fdba618 100644
--- a/xen/common/libfdt/fdt_rw.c
+++ b/xen/common/libfdt/fdt_rw.c
@@ -289,6 +289,33 @@ int fdt_setprop(void *fdt, int nodeoffset, const char
*name,
return 0;
}
+int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
+ const void *val, int len)
+{
+ struct fdt_property *prop;
+ int err, oldlen, newlen;
+
+ FDT_RW_CHECK_HEADER(fdt);
+
+ prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
+ if (prop) {
+ newlen = len + oldlen;
+ err = _fdt_splice_struct(fdt, prop->data,
+ FDT_TAGALIGN(oldlen),
+ FDT_TAGALIGN(newlen));
+ if (err)
+ return err;
+ prop->len = cpu_to_fdt32(newlen);
+ memcpy(prop->data + oldlen, val, len);
+ } else {
+ err = _fdt_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;
@@ -312,7 +339,7 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
int nodelen;
int err;
uint32_t tag;
- uint32_t *endtag;
+ fdt32_t *endtag;
FDT_RW_CHECK_HEADER(fdt);
@@ -339,7 +366,7 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
nh->tag = cpu_to_fdt32(FDT_BEGIN_NODE);
memset(nh->name, 0, FDT_TAGALIGN(namelen+1));
memcpy(nh->name, name, namelen);
- endtag = (uint32_t *)((char *)nh + nodelen - FDT_TAGSIZE);
+ endtag = (fdt32_t *)((char *)nh + nodelen - FDT_TAGSIZE);
*endtag = cpu_to_fdt32(FDT_END_NODE);
return offset;
diff --git a/xen/common/libfdt/fdt_sw.c b/xen/common/libfdt/fdt_sw.c
index 55ebebf..f422754 100644
--- a/xen/common/libfdt/fdt_sw.c
+++ b/xen/common/libfdt/fdt_sw.c
@@ -153,7 +153,7 @@ int fdt_begin_node(void *fdt, const char *name)
int fdt_end_node(void *fdt)
{
- uint32_t *en;
+ fdt32_t *en;
FDT_SW_CHECK_HEADER(fdt);
@@ -213,7 +213,7 @@ int fdt_property(void *fdt, const char *name, const void
*val, int len)
int fdt_finish(void *fdt)
{
char *p = (char *)fdt;
- uint32_t *end;
+ fdt32_t *end;
int oldstroffset, newstroffset;
uint32_t tag;
int offset, nextoffset;
diff --git a/xen/common/libfdt/fdt_wip.c b/xen/common/libfdt/fdt_wip.c
index 6025fa1..c5bbb68 100644
--- a/xen/common/libfdt/fdt_wip.c
+++ b/xen/common/libfdt/fdt_wip.c
@@ -74,7 +74,7 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const char
*name,
static void _fdt_nop_region(void *start, int len)
{
- uint32_t *p;
+ fdt32_t *p;
for (p = start; (char *)p < ((char *)start + len); p++)
*p = cpu_to_fdt32(FDT_NOP);
diff --git a/xen/common/libfdt/version.lds b/xen/common/libfdt/version.lds
index 3c3994e..80b322b 100644
--- a/xen/common/libfdt/version.lds
+++ b/xen/common/libfdt/version.lds
@@ -48,6 +48,12 @@ LIBFDT_1.2 {
fdt_strerror;
fdt_offset_ptr;
fdt_next_tag;
+ fdt_appendprop;
+ fdt_create_empty_tree;
+ fdt_first_property_offset;
+ fdt_get_property_by_offset;
+ fdt_getprop_by_offset;
+ fdt_next_property_offset;
local:
*;
diff --git a/xen/include/xen/libfdt/fdt.h b/xen/include/xen/libfdt/fdt.h
index 48ccfd9..526aedb 100644
--- a/xen/include/xen/libfdt/fdt.h
+++ b/xen/include/xen/libfdt/fdt.h
@@ -1,48 +1,99 @@
#ifndef _FDT_H
#define _FDT_H
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ * Copyright 2012 Kim Phillips, Freescale Semiconductor.
+ *
+ * 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.
+ */
#ifndef __ASSEMBLY__
struct fdt_header {
- uint32_t magic; /* magic word FDT_MAGIC */
- uint32_t totalsize; /* total size of DT block */
- uint32_t off_dt_struct; /* offset to structure */
- uint32_t off_dt_strings; /* offset to strings */
- uint32_t off_mem_rsvmap; /* offset to memory reserve map */
- uint32_t version; /* format version */
- uint32_t last_comp_version; /* last compatible version */
+ fdt32_t magic; /* magic word FDT_MAGIC */
+ fdt32_t totalsize; /* total size of DT block */
+ fdt32_t off_dt_struct; /* offset to structure */
+ fdt32_t off_dt_strings; /* offset to strings */
+ fdt32_t off_mem_rsvmap; /* offset to memory reserve map */
+ fdt32_t version; /* format version */
+ fdt32_t last_comp_version; /* last compatible version */
/* version 2 fields below */
- uint32_t boot_cpuid_phys; /* Which physical CPU id we're
+ fdt32_t boot_cpuid_phys; /* Which physical CPU id we're
booting on */
/* version 3 fields below */
- uint32_t size_dt_strings; /* size of the strings block */
+ fdt32_t size_dt_strings; /* size of the strings block */
/* version 17 fields below */
- uint32_t size_dt_struct; /* size of the structure block */
+ fdt32_t size_dt_struct; /* size of the structure block */
};
struct fdt_reserve_entry {
- uint64_t address;
- uint64_t size;
+ fdt64_t address;
+ fdt64_t size;
};
struct fdt_node_header {
- uint32_t tag;
+ fdt32_t tag;
char name[0];
};
struct fdt_property {
- uint32_t tag;
- uint32_t len;
- uint32_t nameoff;
+ fdt32_t tag;
+ fdt32_t len;
+ fdt32_t nameoff;
char data[0];
};
#endif /* !__ASSEMBLY */
#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */
-#define FDT_TAGSIZE sizeof(uint32_t)
+#define FDT_TAGSIZE sizeof(fdt32_t)
#define FDT_BEGIN_NODE 0x1 /* Start node: full name */
#define FDT_END_NODE 0x2 /* End node */
@@ -51,10 +102,10 @@ struct fdt_property {
#define FDT_NOP 0x4 /* nop */
#define FDT_END 0x9
-#define FDT_V1_SIZE (7*sizeof(uint32_t))
-#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
-#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
+#define FDT_V1_SIZE (7*sizeof(fdt32_t))
+#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(fdt32_t))
+#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(fdt32_t))
#define FDT_V16_SIZE FDT_V3_SIZE
-#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t))
+#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(fdt32_t))
#endif /* _FDT_H */
diff --git a/xen/include/xen/libfdt/libfdt.h b/xen/include/xen/libfdt/libfdt.h
index 6086047..37349f1 100644
--- a/xen/include/xen/libfdt/libfdt.h
+++ b/xen/include/xen/libfdt/libfdt.h
@@ -136,6 +136,28 @@ uint32_t fdt_next_tag(const void *fdt, int offset, int
*nextoffset);
int fdt_next_node(const void *fdt, int offset, int *depth);
+/**
+ * fdt_first_subnode() - get offset of first direct subnode
+ *
+ * @fdt: FDT blob
+ * @offset: Offset of node to check
+ * @return offset of first subnode, or -FDT_ERR_NOTFOUND if there is none
+ */
+int fdt_first_subnode(const void *fdt, int offset);
+
+/**
+ * fdt_next_subnode() - get offset of next direct subnode
+ *
+ * After first calling fdt_first_subnode(), call this function repeatedly to
+ * get direct subnodes of a parent node.
+ *
+ * @fdt: FDT blob
+ * @offset: Offset of previous subnode
+ * @return offset of next subnode, or -FDT_ERR_NOTFOUND if there are no more
+ * subnodes
+ */
+int fdt_next_subnode(const void *fdt, int offset);
+
/**********************************************************************/
/* General functions */
/**********************************************************************/
@@ -582,7 +604,7 @@ const char *fdt_get_alias_namelen(const void *fdt,
* value of the property named 'name' in the node /aliases.
*
* returns:
- * a pointer to the expansion of the alias named 'name', of it exists
+ * a pointer to the expansion of the alias named 'name', if it exists
* NULL, if the given alias or the /aliases node does not exist
*/
const char *fdt_get_alias(const void *fdt, const char *name);
@@ -816,6 +838,20 @@ int fdt_node_check_compatible(const void *fdt, int
nodeoffset,
int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
const char *compatible);
+/**
+ * fdt_stringlist_contains - check a string list property for a string
+ * @strlist: Property containing a list of strings to check
+ * @listlen: Length of property
+ * @str: String to search for
+ *
+ * This is a utility function provided for convenience. The list contains
+ * one or more strings, each terminated by \0, as is found in a device tree
+ * "compatible" property.
+ *
+ * @return: 1 if the string is found in the list, 0 not found, or invalid list
+ */
+int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
+
/**********************************************************************/
/* Write-in-place functions */
/**********************************************************************/
@@ -852,17 +888,17 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const
char *name,
const void *val, int len);
/**
- * fdt_setprop_inplace_cell - change the value of a single-cell property
+ * fdt_setprop_inplace_u32 - change the value of a 32-bit integer property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
- * @val: cell (32-bit integer) value to replace the property with
+ * @val: 32-bit integer value to replace the property with
*
- * fdt_setprop_inplace_cell() replaces the value of a given property
- * with the 32-bit integer cell value in val, converting val to
- * big-endian if necessary. This function cannot change the size of a
- * property, and so will only work if the property already exists and
- * has length 4.
+ * fdt_setprop_inplace_u32() replaces the value of a given property
+ * with the 32-bit integer value in val, converting val to big-endian
+ * if necessary. This function cannot change the size of a property,
+ * and so will only work if the property already exists and has length
+ * 4.
*
* This function will alter only the bytes in the blob which contain
* the given property value, and will not alter or move any other part
@@ -871,7 +907,42 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const
char *name,
* returns:
* 0, on success
* -FDT_ERR_NOSPACE, if the property's length is not equal to 4
- * -FDT_ERR_NOTFOUND, node does not have the named property
+ * -FDT_ERR_NOTFOUND, node does not have the named property
+ * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
+static inline int fdt_setprop_inplace_u32(void *fdt, int nodeoffset,
+ const char *name, uint32_t val)
+{
+ fdt32_t tmp = cpu_to_fdt32(val);
+ return fdt_setprop_inplace(fdt, nodeoffset, name, &tmp, sizeof(tmp));
+}
+
+/**
+ * fdt_setprop_inplace_u64 - change the value of a 64-bit integer property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: 64-bit integer value to replace the property with
+ *
+ * fdt_setprop_inplace_u64() replaces the value of a given property
+ * with the 64-bit integer value in val, converting val to big-endian
+ * if necessary. This function cannot change the size of a property,
+ * and so will only work if the property already exists and has length
+ * 8.
+ *
+ * This function will alter only the bytes in the blob which contain
+ * the given property value, and will not alter or move any other part
+ * of the tree.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOSPACE, if the property's length is not equal to 8
+ * -FDT_ERR_NOTFOUND, node does not have the named property
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
* -FDT_ERR_BADMAGIC,
* -FDT_ERR_BADVERSION,
@@ -879,11 +950,22 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const
char *name,
* -FDT_ERR_BADSTRUCTURE,
* -FDT_ERR_TRUNCATED, standard meanings
*/
+static inline int fdt_setprop_inplace_u64(void *fdt, int nodeoffset,
+ const char *name, uint64_t val)
+{
+ fdt64_t tmp = cpu_to_fdt64(val);
+ return fdt_setprop_inplace(fdt, nodeoffset, name, &tmp, sizeof(tmp));
+}
+
+/**
+ * fdt_setprop_inplace_cell - change the value of a single-cell property
+ *
+ * This is an alternative name for fdt_setprop_inplace_u32()
+ */
static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset,
const char *name, uint32_t val)
{
- val = cpu_to_fdt32(val);
- return fdt_setprop_inplace(fdt, nodeoffset, name, &val, sizeof(val));
+ return fdt_setprop_inplace_u32(fdt, nodeoffset, name, val);
}
/**
@@ -945,10 +1027,19 @@ int fdt_add_reservemap_entry(void *fdt, uint64_t addr,
uint64_t size);
int fdt_finish_reservemap(void *fdt);
int fdt_begin_node(void *fdt, const char *name);
int fdt_property(void *fdt, const char *name, const void *val, int len);
+static inline int fdt_property_u32(void *fdt, const char *name, uint32_t val)
+{
+ fdt32_t tmp = cpu_to_fdt32(val);
+ return fdt_property(fdt, name, &tmp, sizeof(tmp));
+}
+static inline int fdt_property_u64(void *fdt, const char *name, uint64_t val)
+{
+ fdt64_t tmp = cpu_to_fdt64(val);
+ return fdt_property(fdt, name, &tmp, sizeof(tmp));
+}
static inline int fdt_property_cell(void *fdt, const char *name, uint32_t val)
{
- val = cpu_to_fdt32(val);
- return fdt_property(fdt, name, &val, sizeof(val));
+ return fdt_property_u32(fdt, name, val);
}
#define fdt_property_string(fdt, name, str) \
fdt_property(fdt, name, str, strlen(str)+1)
@@ -959,6 +1050,7 @@ int fdt_finish(void *fdt);
/* Read-write functions */
/**********************************************************************/
+int fdt_create_empty_tree(void *buf, int bufsize);
int fdt_open_into(const void *fdt, void *buf, int bufsize);
int fdt_pack(void *fdt);
@@ -1068,14 +1160,14 @@ int fdt_setprop(void *fdt, int nodeoffset, const char
*name,
const void *val, int len);
/**
- * fdt_setprop_cell - set a property to a single cell value
+ * fdt_setprop_u32 - set a property to a 32-bit integer
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to change
* @name: name of the property to change
* @val: 32-bit integer value for the property (native endian)
*
- * fdt_setprop_cell() sets the value of the named property in the
- * given node to the given cell value (converting to big-endian if
+ * fdt_setprop_u32() sets the value of the named property in the given
+ * node to the given 32-bit integer value (converting to big-endian if
* necessary), or creates a new property with that value if it does
* not already exist.
*
@@ -1095,11 +1187,57 @@ int fdt_setprop(void *fdt, int nodeoffset, const char
*name,
* -FDT_ERR_BADLAYOUT,
* -FDT_ERR_TRUNCATED, standard meanings
*/
+static inline int fdt_setprop_u32(void *fdt, int nodeoffset, const char *name,
+ uint32_t val)
+{
+ fdt32_t tmp = cpu_to_fdt32(val);
+ return fdt_setprop(fdt, nodeoffset, name, &tmp, sizeof(tmp));
+}
+
+/**
+ * fdt_setprop_u64 - set a property to a 64-bit integer
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: 64-bit integer value for the property (native endian)
+ *
+ * fdt_setprop_u64() sets the value of the named property in the given
+ * node to the given 64-bit integer value (converting to big-endian if
+ * necessary), or creates a new property with that value if it does
+ * not already exist.
+ *
+ * This function may insert or delete data from the blob, and will
+ * therefore change the offsets of some existing nodes.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ * contain the new property value
+ * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
+static inline int fdt_setprop_u64(void *fdt, int nodeoffset, const char *name,
+ uint64_t val)
+{
+ fdt64_t tmp = cpu_to_fdt64(val);
+ return fdt_setprop(fdt, nodeoffset, name, &tmp, sizeof(tmp));
+}
+
+/**
+ * fdt_setprop_cell - set a property to a single cell value
+ *
+ * This is an alternative name for fdt_setprop_u32()
+ */
static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name,
uint32_t val)
{
- val = cpu_to_fdt32(val);
- return fdt_setprop(fdt, nodeoffset, name, &val, sizeof(val));
+ return fdt_setprop_u32(fdt, nodeoffset, name, val);
}
/**
@@ -1134,6 +1272,147 @@ static inline int fdt_setprop_cell(void *fdt, int
nodeoffset, const char *name,
fdt_setprop((fdt), (nodeoffset), (name), (str), strlen(str)+1)
/**
+ * fdt_appendprop - append to or create a property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to append to
+ * @val: pointer to data to append to the property value
+ * @len: length of the data to append to the property value
+ *
+ * fdt_appendprop() appends the value to the named property in the
+ * given node, creating the property if it does not already exist.
+ *
+ * This function may insert data into the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ * contain the new property value
+ * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
+ const void *val, int len);
+
+/**
+ * fdt_appendprop_u32 - append a 32-bit integer value to a property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: 32-bit integer value to append to the property (native endian)
+ *
+ * fdt_appendprop_u32() appends the given 32-bit integer value
+ * (converting to big-endian if necessary) to the value of the named
+ * property in the given node, or creates a new property with that
+ * value if it does not already exist.
+ *
+ * This function may insert data into the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ * contain the new property value
+ * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
+static inline int fdt_appendprop_u32(void *fdt, int nodeoffset,
+ const char *name, uint32_t val)
+{
+ fdt32_t tmp = cpu_to_fdt32(val);
+ return fdt_appendprop(fdt, nodeoffset, name, &tmp, sizeof(tmp));
+}
+
+/**
+ * fdt_appendprop_u64 - append a 64-bit integer value to a property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: 64-bit integer value to append to the property (native endian)
+ *
+ * fdt_appendprop_u64() appends the given 64-bit integer value
+ * (converting to big-endian if necessary) to the value of the named
+ * property in the given node, or creates a new property with that
+ * value if it does not already exist.
+ *
+ * This function may insert data into the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ * contain the new property value
+ * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
+static inline int fdt_appendprop_u64(void *fdt, int nodeoffset,
+ const char *name, uint64_t val)
+{
+ fdt64_t tmp = cpu_to_fdt64(val);
+ return fdt_appendprop(fdt, nodeoffset, name, &tmp, sizeof(tmp));
+}
+
+/**
+ * fdt_appendprop_cell - append a single cell value to a property
+ *
+ * This is an alternative name for fdt_appendprop_u32()
+ */
+static inline int fdt_appendprop_cell(void *fdt, int nodeoffset,
+ const char *name, uint32_t val)
+{
+ return fdt_appendprop_u32(fdt, nodeoffset, name, val);
+}
+
+/**
+ * fdt_appendprop_string - append a string to a property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @str: string value to append to the property
+ *
+ * fdt_appendprop_string() appends the given string to the value of
+ * the named property in the given node, or creates a new property
+ * with that value if it does not already exist.
+ *
+ * This function may insert data into the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ * contain the new property value
+ * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
+#define fdt_appendprop_string(fdt, nodeoffset, name, str) \
+ fdt_appendprop((fdt), (nodeoffset), (name), (str), strlen(str)+1)
+
+/**
* fdt_delprop - delete a property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node whose property to nop
diff --git a/xen/include/xen/libfdt/libfdt_env.h
b/xen/include/xen/libfdt/libfdt_env.h
index 2f1b03c..89a794b 100644
--- a/xen/include/xen/libfdt/libfdt_env.h
+++ b/xen/include/xen/libfdt/libfdt_env.h
@@ -6,6 +6,10 @@
#include <xen/string.h>
#include <asm/byteorder.h>
+typedef uint16_t fdt16_t;
+typedef uint32_t fdt32_t;
+typedef uint64_t fdt64_t;
+
#define fdt16_to_cpu(x) be16_to_cpu(x)
#define cpu_to_fdt16(x) cpu_to_be16(x)
#define fdt32_to_cpu(x) be32_to_cpu(x)
--
2.1.0
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