xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc: Update in-kernel dtc and libfdt to version 1.2.0

Browse Source 
Some time ago, a copies of the upstream dtc and libfdt sources were
included in the kernel tree to avoid having these as external
dependencies for building the kernel.  Since then development on the
upstream dtc and libfdt has continued.  This updates the in-kernel
versions to match the recently released upstream dtc version 1.2.0.
This includes a number of bugfixes, many cleanups and a few new
features.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
David Gibson
2008-08-07 12:24:17 +10:00
committed by Paul Mackerras
parent 0ec27c049d
commit ed95d7450d
28 changed files with 1617 additions and 1431 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
arch/powerpc/boot/libfdt/fdt.c
View File

@@ -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;