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-rw-r--r--arch/powerpc/boot/libfdt/Makefile.libfdt8
-rw-r--r--arch/powerpc/boot/libfdt/fdt.c61
-rw-r--r--arch/powerpc/boot/libfdt/fdt_ro.c329
-rw-r--r--arch/powerpc/boot/libfdt/fdt_rw.c200
-rw-r--r--arch/powerpc/boot/libfdt/fdt_strerror.c34
-rw-r--r--arch/powerpc/boot/libfdt/fdt_sw.c55
-rw-r--r--arch/powerpc/boot/libfdt/fdt_wip.c9
-rw-r--r--arch/powerpc/boot/libfdt/libfdt.h383
-rw-r--r--arch/powerpc/boot/libfdt/libfdt_internal.h24
-rw-r--r--arch/powerpc/boot/libfdt_env.h1
10 files changed, 702 insertions, 402 deletions
diff --git a/arch/powerpc/boot/libfdt/Makefile.libfdt b/arch/powerpc/boot/libfdt/Makefile.libfdt
index 82f9c6a8287b..6c42acfa21ec 100644
--- a/arch/powerpc/boot/libfdt/Makefile.libfdt
+++ b/arch/powerpc/boot/libfdt/Makefile.libfdt
@@ -3,12 +3,6 @@
# This is not a complete Makefile of itself. Instead, it is designed to
# be easily embeddable into other systems of Makefiles.
#
-LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
LIBFDT_INCLUDES = fdt.h libfdt.h
-LIBFDT_EXTRA = libfdt_internal.h
-LIBFDT_LIB = libfdt/libfdt.a
-
+LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
LIBFDT_OBJS = $(LIBFDT_SRCS:%.c=%.o)
-
-$(LIBFDT_objdir)/$(LIBFDT_LIB): $(addprefix $(LIBFDT_objdir)/,$(LIBFDT_OBJS))
-
diff --git a/arch/powerpc/boot/libfdt/fdt.c b/arch/powerpc/boot/libfdt/fdt.c
index 586a36136db2..2acaec5923ae 100644
--- a/arch/powerpc/boot/libfdt/fdt.c
+++ b/arch/powerpc/boot/libfdt/fdt.c
@@ -63,7 +63,7 @@ int fdt_check_header(const void *fdt)
return -FDT_ERR_BADVERSION;
if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION)
return -FDT_ERR_BADVERSION;
- } else if (fdt_magic(fdt) == SW_MAGIC) {
+ } else if (fdt_magic(fdt) == FDT_SW_MAGIC) {
/* Unfinished sequential-write blob */
if (fdt_size_dt_struct(fdt) == 0)
return -FDT_ERR_BADSTATE;
@@ -76,7 +76,7 @@ int fdt_check_header(const void *fdt)
const void *fdt_offset_ptr(const void *fdt, int offset, int len)
{
- const void *p;
+ const char *p;
if (fdt_version(fdt) >= 0x11)
if (((offset + len) < offset)
@@ -124,11 +124,59 @@ uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset)
}
if (nextoffset)
- *nextoffset = ALIGN(offset, FDT_TAGSIZE);
+ *nextoffset = FDT_TAGALIGN(offset);
return tag;
}
+int _fdt_check_node_offset(const void *fdt, int offset)
+{
+ if ((offset < 0) || (offset % FDT_TAGSIZE)
+ || (fdt_next_tag(fdt, offset, &offset) != FDT_BEGIN_NODE))
+ return -FDT_ERR_BADOFFSET;
+
+ return offset;
+}
+
+int fdt_next_node(const void *fdt, int offset, int *depth)
+{
+ int nextoffset = 0;
+ uint32_t tag;
+
+ if (offset >= 0)
+ if ((nextoffset = _fdt_check_node_offset(fdt, offset)) < 0)
+ return nextoffset;
+
+ do {
+ offset = nextoffset;
+ tag = fdt_next_tag(fdt, offset, &nextoffset);
+
+ switch (tag) {
+ case FDT_PROP:
+ case FDT_NOP:
+ break;
+
+ case FDT_BEGIN_NODE:
+ if (depth)
+ (*depth)++;
+ break;
+
+ case FDT_END_NODE:
+ if (depth)
+ (*depth)--;
+ break;
+
+ case FDT_END:
+ return -FDT_ERR_NOTFOUND;
+
+ default:
+ return -FDT_ERR_BADSTRUCTURE;
+ }
+ } while (tag != FDT_BEGIN_NODE);
+
+ return offset;
+}
+
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s)
{
int len = strlen(s) + 1;
@@ -136,17 +184,14 @@ const char *_fdt_find_string(const char *strtab, int tabsize, const char *s)
const char *p;
for (p = strtab; p <= last; p++)
- if (memeq(p, s, len))
+ if (memcmp(p, s, len) == 0)
return p;
return NULL;
}
int fdt_move(const void *fdt, void *buf, int bufsize)
{
- int err = fdt_check_header(fdt);
-
- if (err)
- return err;
+ FDT_CHECK_HEADER(fdt);
if (fdt_totalsize(fdt) > bufsize)
return -FDT_ERR_NOSPACE;
diff --git a/arch/powerpc/boot/libfdt/fdt_ro.c b/arch/powerpc/boot/libfdt/fdt_ro.c
index 12a37d59f96e..129b532bcc1a 100644
--- a/arch/powerpc/boot/libfdt/fdt_ro.c
+++ b/arch/powerpc/boot/libfdt/fdt_ro.c
@@ -55,17 +55,10 @@
#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)
+static int _fdt_nodename_eq(const void *fdt, int offset,
+ const char *s, int len)
{
- const char *p = fdt_offset_ptr(fdt, offset, len+1);
+ const char *p = fdt_offset_ptr(fdt, offset + FDT_TAGSIZE, len+1);
if (! p)
/* short match */
@@ -84,12 +77,12 @@ static int nodename_eq(const void *fdt, int offset,
const char *fdt_string(const void *fdt, int stroffset)
{
- return (char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
+ return (const 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);
+ FDT_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;
@@ -104,50 +97,24 @@ int fdt_num_mem_rsv(const void *fdt)
return i;
}
-int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
+int fdt_subnode_offset_namelen(const void *fdt, int offset,
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;
+ int depth;
- case FDT_PROP:
- case FDT_NOP:
- break;
+ FDT_CHECK_HEADER(fdt);
- default:
- return -FDT_ERR_BADSTRUCTURE;
- }
- } while (level >= 0);
+ for (depth = 0;
+ offset >= 0;
+ offset = fdt_next_node(fdt, offset, &depth)) {
+ if (depth < 0)
+ return -FDT_ERR_NOTFOUND;
+ else if ((depth == 1)
+ && _fdt_nodename_eq(fdt, offset, name, namelen))
+ return offset;
+ }
- return -FDT_ERR_NOTFOUND;
+ return offset; /* error */
}
int fdt_subnode_offset(const void *fdt, int parentoffset,
@@ -162,7 +129,7 @@ int fdt_path_offset(const void *fdt, const char *path)
const char *p = path;
int offset = 0;
- CHECK_HEADER(fdt);
+ FDT_CHECK_HEADER(fdt);
if (*path != '/')
return -FDT_ERR_BADPATH;
@@ -190,16 +157,12 @@ int fdt_path_offset(const void *fdt, const char *path)
const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
{
- const struct fdt_node_header *nh;
+ const struct fdt_node_header *nh = _fdt_offset_ptr(fdt, nodeoffset);
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 (((err = fdt_check_header(fdt)) != 0)
+ || ((err = _fdt_check_node_offset(fdt, nodeoffset)) < 0))
+ goto fail;
if (len)
*len = strlen(nh->name);
@@ -222,17 +185,11 @@ const struct fdt_property *fdt_get_property(const void *fdt,
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;
+ if (((err = fdt_check_header(fdt)) != 0)
+ || ((err = _fdt_check_node_offset(fdt, nodeoffset)) < 0))
+ goto fail;
+ nextoffset = err;
do {
offset = nextoffset;
@@ -253,7 +210,7 @@ const struct fdt_property *fdt_get_property(const void *fdt,
if (! prop)
goto fail;
namestroff = fdt32_to_cpu(prop->nameoff);
- if (streq(fdt_string(fdt, namestroff), name)) {
+ if (strcmp(fdt_string(fdt, namestroff), name) == 0) {
/* Found it! */
int len = fdt32_to_cpu(prop->len);
prop = fdt_offset_ptr(fdt, offset,
@@ -307,115 +264,91 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
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;
+ int pdepth = 0, p = 0;
+ int offset, depth, namelen;
const char *name;
- CHECK_HEADER(fdt);
-
- tag = fdt_next_tag(fdt, 0, &nextoffset);
- if (tag != FDT_BEGIN_NODE)
- return -FDT_ERR_BADSTRUCTURE;
+ FDT_CHECK_HEADER(fdt);
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;
+ for (offset = 0, depth = 0;
+ (offset >= 0) && (offset <= nodeoffset);
+ offset = fdt_next_node(fdt, offset, &depth)) {
+ if (pdepth < depth)
+ continue; /* overflowed buffer */
- case FDT_BEGIN_NODE:
- name = fdt_get_name(fdt, offset, &namelen);
- if (!name)
- return namelen;
- if (overflow || ((p + namelen + 1) > buflen)) {
- overflow++;
- break;
- }
+ while (pdepth > depth) {
+ do {
+ p--;
+ } while (buf[p-1] != '/');
+ pdepth--;
+ }
+
+ name = fdt_get_name(fdt, offset, &namelen);
+ if (!name)
+ return namelen;
+ if ((p + namelen + 1) <= buflen) {
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;
+ pdepth++;
+ }
- case FDT_PROP:
- case FDT_NOP:
- break;
+ if (offset == nodeoffset) {
+ if (pdepth < (depth + 1))
+ return -FDT_ERR_NOSPACE;
- default:
- return -FDT_ERR_BADSTRUCTURE;
+ if (p > 1) /* special case so that root path is "/", not "" */
+ p--;
+ buf[p] = '\0';
+ return p;
}
}
- if (overflow)
- return -FDT_ERR_NOSPACE;
+ if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
+ return -FDT_ERR_BADOFFSET;
+ else if (offset == -FDT_ERR_BADOFFSET)
+ return -FDT_ERR_BADSTRUCTURE;
- if (p > 1) /* special case so that root path is "/", not "" */
- p--;
- buf[p] = '\0';
- return p;
+ return offset; /* error from fdt_next_node() */
}
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 offset, depth;
int supernodeoffset = -FDT_ERR_INTERNAL;
- CHECK_HEADER(fdt);
+ FDT_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;
+ for (offset = 0, depth = 0;
+ (offset >= 0) && (offset <= nodeoffset);
+ offset = fdt_next_node(fdt, offset, &depth)) {
+ if (depth == supernodedepth)
+ supernodeoffset = offset;
- case FDT_PROP:
- case FDT_NOP:
- break;
+ if (offset == nodeoffset) {
+ if (nodedepth)
+ *nodedepth = depth;
- default:
- return -FDT_ERR_BADSTRUCTURE;
+ if (supernodedepth > depth)
+ return -FDT_ERR_NOTFOUND;
+ else
+ return supernodeoffset;
}
- } while (offset < nodeoffset);
+ }
- if (nodedepth)
- *nodedepth = level;
+ if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
+ return -FDT_ERR_BADOFFSET;
+ else if (offset == -FDT_ERR_BADOFFSET)
+ return -FDT_ERR_BADSTRUCTURE;
- if (supernodedepth > level)
- return -FDT_ERR_NOTFOUND;
- return supernodeoffset;
+ return offset; /* error from fdt_next_node() */
}
int fdt_node_depth(const void *fdt, int nodeoffset)
@@ -443,51 +376,27 @@ 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;
+ int offset;
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;
- }
+ FDT_CHECK_HEADER(fdt);
/* 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);
+ for (offset = fdt_next_node(fdt, startoffset, NULL);
+ offset >= 0;
+ offset = fdt_next_node(fdt, offset, NULL)) {
+ val = fdt_getprop(fdt, offset, propname, &len);
+ if (val && (len == proplen)
+ && (memcmp(val, propval, len) == 0))
+ return offset;
+ }
- return -FDT_ERR_NOTFOUND;
+ return offset; /* error from fdt_next_node() */
}
int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle)
@@ -499,10 +408,10 @@ int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle)
&phandle, sizeof(phandle));
}
-int _stringlist_contains(const void *strlist, int listlen, const char *str)
+int _stringlist_contains(const char *strlist, int listlen, const char *str)
{
int len = strlen(str);
- const void *p;
+ const char *p;
while (listlen >= len) {
if (memcmp(str, strlist, len+1) == 0)
@@ -534,50 +443,24 @@ int fdt_node_check_compatible(const void *fdt, int nodeoffset,
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);
+ int offset, err;
- if (startoffset >= 0) {
- tag = fdt_next_tag(fdt, startoffset, &nextoffset);
- if (tag != FDT_BEGIN_NODE)
- return -FDT_ERR_BADOFFSET;
- } else {
- nextoffset = 0;
- }
+ FDT_CHECK_HEADER(fdt);
/* 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);
+ for (offset = fdt_next_node(fdt, startoffset, NULL);
+ offset >= 0;
+ offset = fdt_next_node(fdt, offset, NULL)) {
+ err = fdt_node_check_compatible(fdt, offset, compatible);
+ if ((err < 0) && (err != -FDT_ERR_NOTFOUND))
+ return err;
+ else if (err == 0)
+ return offset;
+ }
- return -FDT_ERR_NOTFOUND;
+ return offset; /* error from fdt_next_node() */
}
diff --git a/arch/powerpc/boot/libfdt/fdt_rw.c b/arch/powerpc/boot/libfdt/fdt_rw.c
index 6673f8ec962a..8e7ec4cb7bcd 100644
--- a/arch/powerpc/boot/libfdt/fdt_rw.c
+++ b/arch/powerpc/boot/libfdt/fdt_rw.c
@@ -55,10 +55,10 @@
#include "libfdt_internal.h"
-static int _blocks_misordered(const void *fdt,
+static int _fdt_blocks_misordered(const void *fdt,
int mem_rsv_size, int struct_size)
{
- return (fdt_off_mem_rsvmap(fdt) < ALIGN(sizeof(struct fdt_header), 8))
+ return (fdt_off_mem_rsvmap(fdt) < 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) <
@@ -67,16 +67,14 @@ static int _blocks_misordered(const void *fdt,
(fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));
}
-static int rw_check_header(void *fdt)
+static int _fdt_rw_check_header(void *fdt)
{
- int err;
+ FDT_CHECK_HEADER(fdt);
- 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)))
+ if (_fdt_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);
@@ -84,36 +82,37 @@ static int rw_check_header(void *fdt)
return 0;
}
-#define RW_CHECK_HEADER(fdt) \
+#define FDT_RW_CHECK_HEADER(fdt) \
{ \
int err; \
- if ((err = rw_check_header(fdt)) != 0) \
+ if ((err = _fdt_rw_check_header(fdt)) != 0) \
return err; \
}
-static inline int _blob_data_size(void *fdt)
+static inline int _fdt_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)
+static int _fdt_splice(void *fdt, void *splicepoint, int oldlen, int newlen)
{
- void *end = fdt + _blob_data_size(fdt);
+ char *p = splicepoint;
+ char *end = (char *)fdt + _fdt_data_size(fdt);
if (((p + oldlen) < p) || ((p + oldlen) > end))
return -FDT_ERR_BADOFFSET;
- if ((end - oldlen + newlen) > (fdt + fdt_totalsize(fdt)))
+ if ((end - oldlen + newlen) > ((char *)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)
+static int _fdt_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));
+ err = _fdt_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);
@@ -121,13 +120,13 @@ static int _blob_splice_mem_rsv(void *fdt, struct fdt_reserve_entry *p,
return 0;
}
-static int _blob_splice_struct(void *fdt, void *p,
- int oldlen, int newlen)
+static int _fdt_splice_struct(void *fdt, void *p,
+ int oldlen, int newlen)
{
int delta = newlen - oldlen;
int err;
- if ((err = _blob_splice(fdt, p, oldlen, newlen)))
+ if ((err = _fdt_splice(fdt, p, oldlen, newlen)))
return err;
fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);
@@ -135,19 +134,20 @@ static int _blob_splice_struct(void *fdt, void *p,
return 0;
}
-static int _blob_splice_string(void *fdt, int newlen)
+static int _fdt_splice_string(void *fdt, int newlen)
{
- void *p = fdt + fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
+ void *p = (char *)fdt
+ + fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
int err;
- if ((err = _blob_splice(fdt, p, 0, newlen)))
+ if ((err = _fdt_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)
+static int _fdt_find_add_string(void *fdt, const char *s)
{
char *strtab = (char *)fdt + fdt_off_dt_strings(fdt);
const char *p;
@@ -161,7 +161,7 @@ static int _find_add_string(void *fdt, const char *s)
return (p - strtab);
new = strtab + fdt_size_dt_strings(fdt);
- err = _blob_splice_string(fdt, len);
+ err = _fdt_splice_string(fdt, len);
if (err)
return err;
@@ -174,11 +174,10 @@ 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;
+ FDT_RW_CHECK_HEADER(fdt);
re = _fdt_mem_rsv_w(fdt, fdt_num_mem_rsv(fdt));
- err = _blob_splice_mem_rsv(fdt, re, 0, 1);
+ err = _fdt_splice_mem_rsv(fdt, re, 0, 1);
if (err)
return err;
@@ -192,19 +191,19 @@ 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;
+ FDT_RW_CHECK_HEADER(fdt);
+
if (n >= fdt_num_mem_rsv(fdt))
return -FDT_ERR_NOTFOUND;
- err = _blob_splice_mem_rsv(fdt, re, 1, 0);
+ err = _fdt_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)
+static int _fdt_resize_property(void *fdt, int nodeoffset, const char *name,
+ int len, struct fdt_property **prop)
{
int oldlen;
int err;
@@ -213,36 +212,33 @@ static int _resize_property(void *fdt, int nodeoffset, const char *name, int len
if (! (*prop))
return oldlen;
- if ((err = _blob_splice_struct(fdt, (*prop)->data,
- ALIGN(oldlen, FDT_TAGSIZE),
- ALIGN(len, FDT_TAGSIZE))))
+ if ((err = _fdt_splice_struct(fdt, (*prop)->data, FDT_TAGALIGN(oldlen),
+ FDT_TAGALIGN(len))))
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)
+static int _fdt_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;
+ if ((nextoffset = _fdt_check_node_offset(fdt, nodeoffset)) < 0)
+ return nextoffset;
- namestroff = _find_add_string(fdt, name);
+ namestroff = _fdt_find_add_string(fdt, name);
if (namestroff < 0)
return namestroff;
*prop = _fdt_offset_ptr_w(fdt, nextoffset);
- proplen = sizeof(**prop) + ALIGN(len, FDT_TAGSIZE);
+ proplen = sizeof(**prop) + FDT_TAGALIGN(len);
- err = _blob_splice_struct(fdt, *prop, 0, proplen);
+ err = _fdt_splice_struct(fdt, *prop, 0, proplen);
if (err)
return err;
@@ -252,18 +248,40 @@ static int _add_property(void *fdt, int nodeoffset, const char *name, int len,
return 0;
}
+int fdt_set_name(void *fdt, int nodeoffset, const char *name)
+{
+ char *namep;
+ int oldlen, newlen;
+ int err;
+
+ FDT_RW_CHECK_HEADER(fdt);
+
+ namep = (char *)(uintptr_t)fdt_get_name(fdt, nodeoffset, &oldlen);
+ if (!namep)
+ return oldlen;
+
+ newlen = strlen(name);
+
+ err = _fdt_splice_struct(fdt, namep, FDT_TAGALIGN(oldlen+1),
+ FDT_TAGALIGN(newlen+1));
+ 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;
+ FDT_RW_CHECK_HEADER(fdt);
- err = _resize_property(fdt, nodeoffset, name, len, &prop);
+ err = _fdt_resize_property(fdt, nodeoffset, name, len, &prop);
if (err == -FDT_ERR_NOTFOUND)
- err = _add_property(fdt, nodeoffset, name, len, &prop);
+ err = _fdt_add_property(fdt, nodeoffset, name, len, &prop);
if (err)
return err;
@@ -276,14 +294,14 @@ int fdt_delprop(void *fdt, int nodeoffset, const char *name)
struct fdt_property *prop;
int len, proplen;
- RW_CHECK_HEADER(fdt);
+ FDT_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);
+ proplen = sizeof(*prop) + FDT_TAGALIGN(len);
+ return _fdt_splice_struct(fdt, prop, proplen, 0);
}
int fdt_add_subnode_namelen(void *fdt, int parentoffset,
@@ -296,7 +314,7 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
uint32_t tag;
uint32_t *endtag;
- RW_CHECK_HEADER(fdt);
+ FDT_RW_CHECK_HEADER(fdt);
offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen);
if (offset >= 0)
@@ -309,19 +327,19 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
do {
offset = nextoffset;
tag = fdt_next_tag(fdt, offset, &nextoffset);
- } while (tag == FDT_PROP);
+ } while ((tag == FDT_PROP) || (tag == FDT_NOP));
nh = _fdt_offset_ptr_w(fdt, offset);
- nodelen = sizeof(*nh) + ALIGN(namelen+1, FDT_TAGSIZE) + FDT_TAGSIZE;
+ nodelen = sizeof(*nh) + FDT_TAGALIGN(namelen+1) + FDT_TAGSIZE;
- err = _blob_splice_struct(fdt, nh, 0, nodelen);
+ err = _fdt_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));
+ memset(nh->name, 0, FDT_TAGALIGN(namelen+1));
memcpy(nh->name, name, namelen);
- endtag = (uint32_t *)((void *)nh + nodelen - FDT_TAGSIZE);
+ endtag = (uint32_t *)((char *)nh + nodelen - FDT_TAGSIZE);
*endtag = cpu_to_fdt32(FDT_END_NODE);
return offset;
@@ -336,36 +354,36 @@ int fdt_del_node(void *fdt, int nodeoffset)
{
int endoffset;
- RW_CHECK_HEADER(fdt);
+ FDT_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);
+ return _fdt_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)
+static void _fdt_packblocks(const char *old, char *new,
+ int mem_rsv_size, int struct_size)
{
int mem_rsv_off, struct_off, strings_off;
- mem_rsv_off = ALIGN(sizeof(struct fdt_header), 8);
+ mem_rsv_off = FDT_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(new + mem_rsv_off, old + fdt_off_mem_rsvmap(old), mem_rsv_size);
+ fdt_set_off_mem_rsvmap(new, 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(new + struct_off, old + fdt_off_dt_struct(old), struct_size);
+ fdt_set_off_dt_struct(new, struct_off);
+ fdt_set_size_dt_struct(new, 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));
+ memmove(new + strings_off, old + fdt_off_dt_strings(old),
+ fdt_size_dt_strings(old));
+ fdt_set_off_dt_strings(new, strings_off);
+ fdt_set_size_dt_strings(new, fdt_size_dt_strings(old));
}
int fdt_open_into(const void *fdt, void *buf, int bufsize)
@@ -373,11 +391,11 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
int err;
int mem_rsv_size, struct_size;
int newsize;
- void *tmp;
+ const char *fdtstart = fdt;
+ const char *fdtend = fdtstart + fdt_totalsize(fdt);
+ char *tmp;
- err = fdt_check_header(fdt);
- if (err)
- return err;
+ FDT_CHECK_HEADER(fdt);
mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
* sizeof(struct fdt_reserve_entry);
@@ -390,7 +408,7 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
;
}
- if (!_blocks_misordered(fdt, mem_rsv_size, struct_size)) {
+ if (!_fdt_blocks_misordered(fdt, mem_rsv_size, struct_size)) {
/* no further work necessary */
err = fdt_move(fdt, buf, bufsize);
if (err)
@@ -402,22 +420,23 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
}
/* Need to reorder */
- newsize = ALIGN(sizeof(struct fdt_header), 8) + mem_rsv_size
+ newsize = FDT_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))
+ /* First attempt to build converted tree at beginning of buffer */
+ tmp = buf;
+ /* But if that overlaps with the old tree... */
+ if (((tmp + newsize) > fdtstart) && (tmp < fdtend)) {
+ /* Try right after the old tree instead */
+ tmp = (char *)(uintptr_t)fdtend;
+ if ((tmp + newsize) > ((char *)buf + bufsize))
return -FDT_ERR_NOSPACE;
}
- _packblocks(fdt, tmp, mem_rsv_size, struct_size);
+ _fdt_packblocks(fdt, tmp, mem_rsv_size, struct_size);
memmove(buf, tmp, newsize);
fdt_set_magic(buf, FDT_MAGIC);
@@ -432,16 +451,13 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
int fdt_pack(void *fdt)
{
int mem_rsv_size;
- int err;
- err = rw_check_header(fdt);
- if (err)
- return err;
+ FDT_RW_CHECK_HEADER(fdt);
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));
+ _fdt_packblocks(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));
+ fdt_set_totalsize(fdt, _fdt_data_size(fdt));
return 0;
}
diff --git a/arch/powerpc/boot/libfdt/fdt_strerror.c b/arch/powerpc/boot/libfdt/fdt_strerror.c
index f9d32ef5360a..e6c3ceee8c58 100644
--- a/arch/powerpc/boot/libfdt/fdt_strerror.c
+++ b/arch/powerpc/boot/libfdt/fdt_strerror.c
@@ -55,29 +55,29 @@
#include "libfdt_internal.h"
-struct errtabent {
+struct fdt_errtabent {
const char *str;
};
-#define ERRTABENT(val) \
+#define FDT_ERRTABENT(val) \
[(val)] = { .str = #val, }
-static struct errtabent errtable[] = {
- ERRTABENT(FDT_ERR_NOTFOUND),
- ERRTABENT(FDT_ERR_EXISTS),
- ERRTABENT(FDT_ERR_NOSPACE),
+static struct fdt_errtabent fdt_errtable[] = {
+ FDT_ERRTABENT(FDT_ERR_NOTFOUND),
+ FDT_ERRTABENT(FDT_ERR_EXISTS),
+ FDT_ERRTABENT(FDT_ERR_NOSPACE),
- ERRTABENT(FDT_ERR_BADOFFSET),
- ERRTABENT(FDT_ERR_BADPATH),
- ERRTABENT(FDT_ERR_BADSTATE),
+ FDT_ERRTABENT(FDT_ERR_BADOFFSET),
+ FDT_ERRTABENT(FDT_ERR_BADPATH),
+ FDT_ERRTABENT(FDT_ERR_BADSTATE),
- ERRTABENT(FDT_ERR_TRUNCATED),
- ERRTABENT(FDT_ERR_BADMAGIC),
- ERRTABENT(FDT_ERR_BADVERSION),
- ERRTABENT(FDT_ERR_BADSTRUCTURE),
- ERRTABENT(FDT_ERR_BADLAYOUT),
+ FDT_ERRTABENT(FDT_ERR_TRUNCATED),
+ FDT_ERRTABENT(FDT_ERR_BADMAGIC),
+ FDT_ERRTABENT(FDT_ERR_BADVERSION),
+ FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
+ FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
};
-#define ERRTABSIZE (sizeof(errtable) / sizeof(errtable[0]))
+#define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
const char *fdt_strerror(int errval)
{
@@ -85,8 +85,8 @@ const char *fdt_strerror(int errval)
return "<valid offset/length>";
else if (errval == 0)
return "<no error>";
- else if (errval > -ERRTABSIZE) {
- const char *s = errtable[-errval].str;
+ else if (errval > -FDT_ERRTABSIZE) {
+ const char *s = fdt_errtable[-errval].str;
if (s)
return s;
diff --git a/arch/powerpc/boot/libfdt/fdt_sw.c b/arch/powerpc/boot/libfdt/fdt_sw.c
index dda2de34b2e0..698329e0ccaf 100644
--- a/arch/powerpc/boot/libfdt/fdt_sw.c
+++ b/arch/powerpc/boot/libfdt/fdt_sw.c
@@ -55,14 +55,22 @@
#include "libfdt_internal.h"
-static int check_header_sw(void *fdt)
+static int _fdt_sw_check_header(void *fdt)
{
- if (fdt_magic(fdt) != SW_MAGIC)
+ if (fdt_magic(fdt) != FDT_SW_MAGIC)
return -FDT_ERR_BADMAGIC;
+ /* FIXME: should check more details about the header state */
return 0;
}
-static void *grab_space(void *fdt, int len)
+#define FDT_SW_CHECK_HEADER(fdt) \
+ { \
+ int err; \
+ if ((err = _fdt_sw_check_header(fdt)) != 0) \
+ return err; \
+ }
+
+static void *_fdt_grab_space(void *fdt, int len)
{
int offset = fdt_size_dt_struct(fdt);
int spaceleft;
@@ -86,13 +94,13 @@ int fdt_create(void *buf, int bufsize)
memset(buf, 0, bufsize);
- fdt_set_magic(fdt, SW_MAGIC);
+ fdt_set_magic(fdt, FDT_SW_MAGIC);
fdt_set_version(fdt, FDT_LAST_SUPPORTED_VERSION);
fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);
fdt_set_totalsize(fdt, bufsize);
- fdt_set_off_mem_rsvmap(fdt, ALIGN(sizeof(struct fdt_header),
- sizeof(struct fdt_reserve_entry)));
+ fdt_set_off_mem_rsvmap(fdt, FDT_ALIGN(sizeof(struct fdt_header),
+ sizeof(struct fdt_reserve_entry)));
fdt_set_off_dt_struct(fdt, fdt_off_mem_rsvmap(fdt));
fdt_set_off_dt_strings(fdt, bufsize);
@@ -102,11 +110,10 @@ int fdt_create(void *buf, int bufsize)
int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
{
struct fdt_reserve_entry *re;
- int err = check_header_sw(fdt);
int offset;
- if (err)
- return err;
+ FDT_SW_CHECK_HEADER(fdt);
+
if (fdt_size_dt_struct(fdt))
return -FDT_ERR_BADSTATE;
@@ -114,7 +121,7 @@ int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
if ((offset + sizeof(*re)) > fdt_totalsize(fdt))
return -FDT_ERR_NOSPACE;
- re = (struct fdt_reserve_entry *)(fdt + offset);
+ re = (struct fdt_reserve_entry *)((char *)fdt + offset);
re->address = cpu_to_fdt64(addr);
re->size = cpu_to_fdt64(size);
@@ -131,13 +138,11 @@ int fdt_finish_reservemap(void *fdt)
int fdt_begin_node(void *fdt, const char *name)
{
struct fdt_node_header *nh;
- int err = check_header_sw(fdt);
int namelen = strlen(name) + 1;
- if (err)
- return err;
+ FDT_SW_CHECK_HEADER(fdt);
- nh = grab_space(fdt, sizeof(*nh) + ALIGN(namelen, FDT_TAGSIZE));
+ nh = _fdt_grab_space(fdt, sizeof(*nh) + FDT_TAGALIGN(namelen));
if (! nh)
return -FDT_ERR_NOSPACE;
@@ -149,12 +154,10 @@ int fdt_begin_node(void *fdt, const char *name)
int fdt_end_node(void *fdt)
{
uint32_t *en;
- int err = check_header_sw(fdt);
- if (err)
- return err;
+ FDT_SW_CHECK_HEADER(fdt);
- en = grab_space(fdt, FDT_TAGSIZE);
+ en = _fdt_grab_space(fdt, FDT_TAGSIZE);
if (! en)
return -FDT_ERR_NOSPACE;
@@ -162,7 +165,7 @@ int fdt_end_node(void *fdt)
return 0;
}
-static int find_add_string(void *fdt, const char *s)
+static int _fdt_find_add_string(void *fdt, const char *s)
{
char *strtab = (char *)fdt + fdt_totalsize(fdt);
const char *p;
@@ -188,17 +191,15 @@ static int find_add_string(void *fdt, const char *s)
int fdt_property(void *fdt, const char *name, const void *val, int len)
{
struct fdt_property *prop;
- int err = check_header_sw(fdt);
int nameoff;
- if (err)
- return err;
+ FDT_SW_CHECK_HEADER(fdt);
- nameoff = find_add_string(fdt, name);
+ nameoff = _fdt_find_add_string(fdt, name);
if (nameoff == 0)
return -FDT_ERR_NOSPACE;
- prop = grab_space(fdt, sizeof(*prop) + ALIGN(len, FDT_TAGSIZE));
+ prop = _fdt_grab_space(fdt, sizeof(*prop) + FDT_TAGALIGN(len));
if (! prop)
return -FDT_ERR_NOSPACE;
@@ -211,18 +212,16 @@ int fdt_property(void *fdt, const char *name, const void *val, int len)
int fdt_finish(void *fdt)
{
- int err = check_header_sw(fdt);
char *p = (char *)fdt;
uint32_t *end;
int oldstroffset, newstroffset;
uint32_t tag;
int offset, nextoffset;
- if (err)
- return err;
+ FDT_SW_CHECK_HEADER(fdt);
/* Add terminator */
- end = grab_space(fdt, sizeof(*end));
+ end = _fdt_grab_space(fdt, sizeof(*end));
if (! end)
return -FDT_ERR_NOSPACE;
*end = cpu_to_fdt32(FDT_END);
diff --git a/arch/powerpc/boot/libfdt/fdt_wip.c b/arch/powerpc/boot/libfdt/fdt_wip.c
index 88e24b8318f4..a4652c6e787e 100644
--- a/arch/powerpc/boot/libfdt/fdt_wip.c
+++ b/arch/powerpc/boot/libfdt/fdt_wip.c
@@ -72,11 +72,11 @@ int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
return 0;
}
-static void nop_region(void *start, int len)
+static void _fdt_nop_region(void *start, int len)
{
uint32_t *p;
- for (p = start; (void *)p < (start + len); p++)
+ for (p = start; (char *)p < ((char *)start + len); p++)
*p = cpu_to_fdt32(FDT_NOP);
}
@@ -89,7 +89,7 @@ int fdt_nop_property(void *fdt, int nodeoffset, const char *name)
if (! prop)
return len;
- nop_region(prop, len + sizeof(*prop));
+ _fdt_nop_region(prop, len + sizeof(*prop));
return 0;
}
@@ -139,6 +139,7 @@ int fdt_nop_node(void *fdt, int nodeoffset)
if (endoffset < 0)
return endoffset;
- nop_region(fdt_offset_ptr_w(fdt, nodeoffset, 0), endoffset - nodeoffset);
+ _fdt_nop_region(fdt_offset_ptr_w(fdt, nodeoffset, 0),
+ endoffset - nodeoffset);
return 0;
}
diff --git a/arch/powerpc/boot/libfdt/libfdt.h b/arch/powerpc/boot/libfdt/libfdt.h
index 6b2fb92ea357..ce80e4fb41b2 100644
--- a/arch/powerpc/boot/libfdt/libfdt.h
+++ b/arch/powerpc/boot/libfdt/libfdt.h
@@ -125,12 +125,18 @@
const void *fdt_offset_ptr(const void *fdt, int offset, int checklen);
static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen)
{
- return (void *)fdt_offset_ptr(fdt, offset, checklen);
+ return (void *)(uintptr_t)fdt_offset_ptr(fdt, offset, checklen);
}
uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset);
/**********************************************************************/
+/* Traversal functions */
+/**********************************************************************/
+
+int fdt_next_node(const void *fdt, int offset, int *depth);
+
+/**********************************************************************/
/* General functions */
/**********************************************************************/
@@ -207,7 +213,7 @@ int fdt_move(const void *fdt, void *buf, int bufsize);
/**********************************************************************/
/**
- * fdt_string - retreive a string from the strings block of a device tree
+ * fdt_string - retrieve a string from the strings block of a device tree
* @fdt: pointer to the device tree blob
* @stroffset: offset of the string within the strings block (native endian)
*
@@ -221,7 +227,7 @@ int fdt_move(const void *fdt, void *buf, int bufsize);
const char *fdt_string(const void *fdt, int stroffset);
/**
- * fdt_num_mem_rsv - retreive the number of memory reserve map entries
+ * fdt_num_mem_rsv - retrieve the number of memory reserve map entries
* @fdt: pointer to the device tree blob
*
* Returns the number of entries in the device tree blob's memory
@@ -234,7 +240,7 @@ const char *fdt_string(const void *fdt, int stroffset);
int fdt_num_mem_rsv(const void *fdt);
/**
- * fdt_get_mem_rsv - retreive one memory reserve map entry
+ * fdt_get_mem_rsv - retrieve one memory reserve map entry
* @fdt: pointer to the device tree blob
* @address, @size: pointers to 64-bit variables
*
@@ -314,7 +320,7 @@ int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name);
int fdt_path_offset(const void *fdt, const char *path);
/**
- * fdt_get_name - retreive the name of a given node
+ * fdt_get_name - retrieve the name of a given node
* @fdt: pointer to the device tree blob
* @nodeoffset: structure block offset of the starting node
* @lenp: pointer to an integer variable (will be overwritten) or NULL
@@ -346,7 +352,7 @@ const char *fdt_get_name(const void *fdt, int nodeoffset, int *lenp);
* fdt_get_property() retrieves a pointer to the fdt_property
* structure within the device tree blob corresponding to the property
* named 'name' of the node at offset nodeoffset. If lenp is
- * non-NULL, the length of the property value also returned, in the
+ * non-NULL, the length of the property value is also returned, in the
* integer pointed to by lenp.
*
* returns:
@@ -369,8 +375,8 @@ static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset,
const char *name,
int *lenp)
{
- return (struct fdt_property *)fdt_get_property(fdt, nodeoffset,
- name, lenp);
+ return (struct fdt_property *)(uintptr_t)
+ fdt_get_property(fdt, nodeoffset, name, lenp);
}
/**
@@ -383,7 +389,7 @@ static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset,
* fdt_getprop() retrieves a pointer to the value of the property
* named 'name' of the node at offset nodeoffset (this will be a
* pointer to within the device blob itself, not a copy of the value).
- * If lenp is non-NULL, the length of the property value also
+ * If lenp is non-NULL, the length of the property value is also
* returned, in the integer pointed to by lenp.
*
* returns:
@@ -405,11 +411,11 @@ const void *fdt_getprop(const void *fdt, int nodeoffset,
static inline void *fdt_getprop_w(void *fdt, int nodeoffset,
const char *name, int *lenp)
{
- return (void *)fdt_getprop(fdt, nodeoffset, name, lenp);
+ return (void *)(uintptr_t)fdt_getprop(fdt, nodeoffset, name, lenp);
}
/**
- * fdt_get_phandle - retreive the phandle of a given node
+ * fdt_get_phandle - retrieve the phandle of a given node
* @fdt: pointer to the device tree blob
* @nodeoffset: structure block offset of the node
*
@@ -417,7 +423,7 @@ static inline void *fdt_getprop_w(void *fdt, int nodeoffset,
* structure block offset nodeoffset.
*
* returns:
- * the phandle of the node at nodeoffset, on succes (!= 0, != -1)
+ * the phandle of the node at nodeoffset, on success (!= 0, != -1)
* 0, if the node has no phandle, or another error occurs
*/
uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
@@ -516,7 +522,7 @@ int fdt_node_depth(const void *fdt, int nodeoffset);
* structure from the start to nodeoffset, *twice*.
*
* returns:
- * stucture block offset of the parent of the node at nodeoffset
+ * structure block offset of the parent of the node at nodeoffset
* (>=0), on success
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
* -FDT_ERR_BADMAGIC,
@@ -573,7 +579,7 @@ int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
* @fdt: pointer to the device tree blob
* @phandle: phandle value
*
- * fdt_node_offset_by_prop_value() returns the offset of the node
+ * fdt_node_offset_by_phandle() returns the offset of the node
* which has the given phandle value. If there is more than one node
* in the tree with the given phandle (an invalid tree), results are
* undefined.
@@ -655,8 +661,65 @@ int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
/* Write-in-place functions */
/**********************************************************************/
+/**
+ * fdt_setprop_inplace - change a property's value, but not its size
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: pointer to data to replace the property value with
+ * @len: length of the property value
+ *
+ * fdt_setprop_inplace() replaces the value of a given property with
+ * the data in val, of length len. This function cannot change the
+ * size of a property, and so will only work if len is equal to the
+ * current length of the property.
+ *
+ * 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 len is not equal to the property's current length
+ * -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
+ */
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: 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
+ *
+ * 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.
+ *
+ * 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 4
+ * -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_cell(void *fdt, int nodeoffset,
const char *name, uint32_t val)
{
@@ -664,7 +727,54 @@ static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset,
return fdt_setprop_inplace(fdt, nodeoffset, name, &val, sizeof(val));
}
+/**
+ * fdt_nop_property - replace a property with nop tags
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to nop
+ * @name: name of the property to nop
+ *
+ * fdt_nop_property() will replace a given property's representation
+ * in the blob with FDT_NOP tags, effectively removing it from the
+ * tree.
+ *
+ * This function will alter only the bytes in the blob which contain
+ * the property, and will not alter or move any other part of the
+ * tree.
+ *
+ * returns:
+ * 0, on success
+ * -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
+ */
int fdt_nop_property(void *fdt, int nodeoffset, const char *name);
+
+/**
+ * fdt_nop_node - replace a node (subtree) with nop tags
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node to nop
+ *
+ * fdt_nop_node() will replace a given node's representation in the
+ * blob, including all its subnodes, if any, with FDT_NOP tags,
+ * effectively removing it from the tree.
+ *
+ * This function will alter only the bytes in the blob which contain
+ * the node and its properties and subnodes, and will not alter or
+ * move any other part of the tree.
+ *
+ * returns:
+ * 0, on success
+ * -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
+ */
int fdt_nop_node(void *fdt, int nodeoffset);
/**********************************************************************/
@@ -693,23 +803,268 @@ int fdt_finish(void *fdt);
int fdt_open_into(const void *fdt, void *buf, int bufsize);
int fdt_pack(void *fdt);
+/**
+ * fdt_add_mem_rsv - add one memory reserve map entry
+ * @fdt: pointer to the device tree blob
+ * @address, @size: 64-bit values (native endian)
+ *
+ * Adds a reserve map entry to the given blob reserving a region at
+ * address address of length size.
+ *
+ * This function will insert data into the reserve map and will
+ * therefore change the indexes of some entries in the table.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ * contain the new reservation entry
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size);
+
+/**
+ * fdt_del_mem_rsv - remove a memory reserve map entry
+ * @fdt: pointer to the device tree blob
+ * @n: entry to remove
+ *
+ * fdt_del_mem_rsv() removes the n-th memory reserve map entry from
+ * the blob.
+ *
+ * This function will delete data from the reservation table and will
+ * therefore change the indexes of some entries in the table.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOTFOUND, there is no entry of the given index (i.e. there
+ * are less than n+1 reserve map entries)
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_BADLAYOUT,
+ * -FDT_ERR_TRUNCATED, standard meanings
+ */
int fdt_del_mem_rsv(void *fdt, int n);
+/**
+ * fdt_set_name - change the name of a given node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: structure block offset of a node
+ * @name: name to give the node
+ *
+ * fdt_set_name() replaces the name (including unit address, if any)
+ * of the given node with the given string. NOTE: this function can't
+ * efficiently check if the new name is unique amongst the given
+ * node's siblings; results are undefined if this function is invoked
+ * with a name equal to one of the given node's siblings.
+ *
+ * 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 name
+ * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE, standard meanings
+ */
+int fdt_set_name(void *fdt, int nodeoffset, const char *name);
+
+/**
+ * fdt_setprop - create or change 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: pointer to data to set the property value to
+ * @len: length of the property value
+ *
+ * fdt_setprop() sets the value of the named property in the given
+ * node to the given value and length, creating the property 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
+ */
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: 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
+ * 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_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));
}
+
+/**
+ * fdt_setprop_string - set a property to a string value
+ * @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 for the property
+ *
+ * fdt_setprop_string() sets the value of the named property in the
+ * given node to the given string value (using the length of the
+ * string to determine the new length of the property), 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
+ */
#define fdt_setprop_string(fdt, nodeoffset, name, str) \
fdt_setprop((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
+ * @name: name of the property to nop
+ *
+ * fdt_del_property() will delete the given property.
+ *
+ * This function will delete data from the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ * 0, on success
+ * -FDT_ERR_NOTFOUND, node does not have the named property
+ * -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_TRUNCATED, standard meanings
+ */
int fdt_delprop(void *fdt, int nodeoffset, const char *name);
+
+/**
+ * fdt_add_subnode_namelen - creates a new node based on substring
+ * @fdt: pointer to the device tree blob
+ * @parentoffset: structure block offset of a node
+ * @name: name of the subnode to locate
+ * @namelen: number of characters of name to consider
+ *
+ * Identical to fdt_add_subnode(), but use only the first namelen
+ * characters of name as the name of the new node. This is useful for
+ * creating subnodes based on a portion of a larger string, such as a
+ * full path.
+ */
int fdt_add_subnode_namelen(void *fdt, int parentoffset,
const char *name, int namelen);
+
+/**
+ * fdt_add_subnode - creates a new node
+ * @fdt: pointer to the device tree blob
+ * @parentoffset: structure block offset of a node
+ * @name: name of the subnode to locate
+ *
+ * fdt_add_subnode() creates a new node as a subnode of the node at
+ * structure block offset parentoffset, with the given name (which
+ * should include the unit address, if any).
+ *
+ * This function will insert data into the blob, and will therefore
+ * change the offsets of some existing nodes.
+
+ * returns:
+ * structure block offset of the created nodeequested subnode (>=0), on success
+ * -FDT_ERR_NOTFOUND, if the requested subnode does not exist
+ * -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE tag
+ * -FDT_ERR_EXISTS, if the node at parentoffset already has a subnode of
+ * the given name
+ * -FDT_ERR_NOSPACE, if there is insufficient free space in the
+ * blob to contain the new node
+ * -FDT_ERR_NOSPACE
+ * -FDT_ERR_BADLAYOUT
+ * -FDT_ERR_BADMAGIC,
+ * -FDT_ERR_BADVERSION,
+ * -FDT_ERR_BADSTATE,
+ * -FDT_ERR_BADSTRUCTURE,
+ * -FDT_ERR_TRUNCATED, standard meanings.
+ */
int fdt_add_subnode(void *fdt, int parentoffset, const char *name);
+
+/**
+ * fdt_del_node - delete a node (subtree)
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node to nop
+ *
+ * fdt_del_node() will remove the given node, including all its
+ * subnodes if any, from the blob.
+ *
+ * This function will delete data from the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ * 0, on success
+ * -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_TRUNCATED, standard meanings
+ */
int fdt_del_node(void *fdt, int nodeoffset);
/**********************************************************************/
diff --git a/arch/powerpc/boot/libfdt/libfdt_internal.h b/arch/powerpc/boot/libfdt/libfdt_internal.h
index 1e60936beb5b..46eb93e4af5c 100644
--- a/arch/powerpc/boot/libfdt/libfdt_internal.h
+++ b/arch/powerpc/boot/libfdt/libfdt_internal.h
@@ -52,38 +52,44 @@
*/
#include <fdt.h>
-#define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
-#define PALIGN(p, a) ((void *)ALIGN((unsigned long)(p), (a)))
+#define FDT_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
+#define FDT_TAGALIGN(x) (FDT_ALIGN((x), FDT_TAGSIZE))
-#define memeq(p, q, n) (memcmp((p), (q), (n)) == 0)
-#define streq(p, q) (strcmp((p), (q)) == 0)
+#define FDT_CHECK_HEADER(fdt) \
+ { \
+ int err; \
+ if ((err = fdt_check_header(fdt)) != 0) \
+ return err; \
+ }
uint32_t _fdt_next_tag(const void *fdt, int startoffset, int *nextoffset);
+int _fdt_check_node_offset(const void *fdt, int offset);
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
int _fdt_node_end_offset(void *fdt, int nodeoffset);
static inline const void *_fdt_offset_ptr(const void *fdt, int offset)
{
- return fdt + fdt_off_dt_struct(fdt) + offset;
+ return (const char *)fdt + fdt_off_dt_struct(fdt) + offset;
}
static inline void *_fdt_offset_ptr_w(void *fdt, int offset)
{
- return (void *)_fdt_offset_ptr(fdt, offset);
+ return (void *)(uintptr_t)_fdt_offset_ptr(fdt, offset);
}
static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n)
{
const struct fdt_reserve_entry *rsv_table =
- fdt + fdt_off_mem_rsvmap(fdt);
+ (const struct fdt_reserve_entry *)
+ ((const char *)fdt + fdt_off_mem_rsvmap(fdt));
return rsv_table + n;
}
static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n)
{
- return (void *)_fdt_mem_rsv(fdt, n);
+ return (void *)(uintptr_t)_fdt_mem_rsv(fdt, n);
}
-#define SW_MAGIC (~FDT_MAGIC)
+#define FDT_SW_MAGIC (~FDT_MAGIC)
#endif /* _LIBFDT_INTERNAL_H */
diff --git a/arch/powerpc/boot/libfdt_env.h b/arch/powerpc/boot/libfdt_env.h
index a4b0fc959ece..c89fdb1b80e1 100644
--- a/arch/powerpc/boot/libfdt_env.h
+++ b/arch/powerpc/boot/libfdt_env.h
@@ -6,6 +6,7 @@
typedef u32 uint32_t;
typedef u64 uint64_t;
+typedef unsigned long uintptr_t;
#define fdt16_to_cpu(x) (x)
#define cpu_to_fdt16(x) (x)