microsoft
/
WSL2-Linux-Kernel
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Merge branch 'dt/dtc-sync' into dt/next

This commit is contained in:
Rob Herring 2021-02-04 09:08:37 -06:00
Родитель 9183908e70 ce88c9c794
Коммит eb90b4f8fb
22 изменённых файлов: 372 добавлений и 237 удалений
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1
.gitignore поставляемый
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@ -18,6 +18,7 @@
*.c.[012]*.*
*.dt.yaml
*.dtb
*.dtbo
*.dtb.S
*.dwo
*.elf

5
Makefile
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@ -1337,6 +1337,9 @@ ifneq ($(dtstree),)
%.dtb: include/config/kernel.release scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
%.dtbo: include/config/kernel.release scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
PHONY += dtbs dtbs_install dtbs_check
dtbs: include/config/kernel.release scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree)
@ -1816,7 +1819,7 @@ clean: $(clean-dirs)
@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
\( -name '*.[aios]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '*.ko.*' \
-o -name '*.dtb' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
-o -name '*.dtb' -o -name '*.dtbo' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
-o -name '*.dwo' -o -name '*.lst' \
-o -name '*.su' -o -name '*.mod' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

3
scripts/Makefile.dtbinst
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@ -29,6 +29,9 @@ quiet_cmd_dtb_install = INSTALL $@
$(dst)/%.dtb: $(obj)/%.dtb
$(call cmd,dtb_install)
$(dst)/%.dtbo: $(obj)/%.dtbo
$(call cmd,dtb_install)
PHONY += $(subdirs)
$(subdirs):
$(Q)$(MAKE) $(dtbinst)=$@ dst=$(patsubst $(obj)/%,$(dst)/%,$@)

5
scripts/Makefile.lib
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@ -86,7 +86,9 @@ extra-$(CONFIG_OF_ALL_DTBS) += $(dtb-)
ifneq ($(CHECK_DTBS),)
extra-y += $(patsubst %.dtb,%.dt.yaml, $(dtb-y))
extra-y += $(patsubst %.dtbo,%.dt.yaml, $(dtb-y))
extra-$(CONFIG_OF_ALL_DTBS) += $(patsubst %.dtb,%.dt.yaml, $(dtb-))
extra-$(CONFIG_OF_ALL_DTBS) += $(patsubst %.dtbo,%.dt.yaml, $(dtb-))
endif
# Add subdir path
@ -327,6 +329,9 @@ cmd_dtc = $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ;
$(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE
$(call if_changed_dep,dtc)
$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
$(call if_changed_dep,dtc)
DT_CHECKER ?= dt-validate
DT_BINDING_DIR := Documentation/devicetree/bindings
# DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile

8
scripts/dtc/Makefile
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@ -1,13 +1,19 @@
# SPDX-License-Identifier: GPL-2.0
# scripts/dtc makefile
hostprogs-always-$(CONFIG_DTC) += dtc
hostprogs-always-$(CONFIG_DTC) += dtc fdtoverlay
hostprogs-always-$(CHECK_DT_BINDING) += dtc
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
srcpos.o checks.o util.o
dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
# The upstream project builds libfdt as a separate library. We are choosing to
# instead directly link the libfdt object files into fdtoverlay.
libfdt-objs := fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o fdt_strerror.o fdt_empty_tree.o fdt_addresses.o fdt_overlay.o
libfdt = $(addprefix libfdt/,$(libfdt-objs))
fdtoverlay-objs := $(libfdt) fdtoverlay.o util.o
# Source files need to get at the userspace version of libfdt_env.h to compile
HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt

6
scripts/dtc/data.c
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@ -21,10 +21,10 @@ void data_free(struct data d)
free(d.val);
}
struct data data_grow_for(struct data d, int xlen)
struct data data_grow_for(struct data d, unsigned int xlen)
{
struct data nd;
int newsize;
unsigned int newsize;
if (xlen == 0)
return d;
@ -84,7 +84,7 @@ struct data data_copy_file(FILE *f, size_t maxlen)
while (!feof(f) && (d.len < maxlen)) {
size_t chunksize, ret;
if (maxlen == -1)
if (maxlen == (size_t)-1)
chunksize = 4096;
else
chunksize = maxlen - d.len;

4
scripts/dtc/dtc.c
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@ -122,6 +122,8 @@ static const char *guess_type_by_name(const char *fname, const char *fallback)
return "dts";
if (!strcasecmp(s, ".yaml"))
return "yaml";
if (!strcasecmp(s, ".dtbo"))
return "dtb";
if (!strcasecmp(s, ".dtb"))
return "dtb";
return fallback;
@ -357,6 +359,8 @@ int main(int argc, char *argv[])
#endif
} else if (streq(outform, "dtb")) {
dt_to_blob(outf, dti, outversion);
} else if (streq(outform, "dtbo")) {
dt_to_blob(outf, dti, outversion);
} else if (streq(outform, "asm")) {
dt_to_asm(outf, dti, outversion);
} else if (streq(outform, "null")) {

8
scripts/dtc/dtc.h
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@ -105,13 +105,13 @@ extern const char *markername(enum markertype markertype);
struct marker {
enum markertype type;
int offset;
unsigned int offset;
char *ref;
struct marker *next;
};
struct data {
int len;
unsigned int len;
char *val;
struct marker *markers;
};
@ -129,7 +129,7 @@ size_t type_marker_length(struct marker *m);
void data_free(struct data d);
struct data data_grow_for(struct data d, int xlen);
struct data data_grow_for(struct data d, unsigned int xlen);
struct data data_copy_mem(const char *mem, int len);
struct data data_copy_escape_string(const char *s, int len);
@ -253,7 +253,7 @@ void append_to_property(struct node *node,
const char *get_unitname(struct node *node);
struct property *get_property(struct node *node, const char *propname);
cell_t propval_cell(struct property *prop);
cell_t propval_cell_n(struct property *prop, int n);
cell_t propval_cell_n(struct property *prop, unsigned int n);
struct property *get_property_by_label(struct node *tree, const char *label,
struct node **node);
struct marker *get_marker_label(struct node *tree, const char *label,

163
scripts/dtc/fdtdump.c
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@ -1,163 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* fdtdump.c - Contributed by Pantelis Antoniou <pantelis.antoniou AT gmail.com>
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <fdt.h>
#include <libfdt_env.h>
#include "util.h"
#define ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
#define PALIGN(p, a) ((void *)(ALIGN((unsigned long)(p), (a))))
#define GET_CELL(p) (p += 4, *((const uint32_t *)(p-4)))
static void print_data(const char *data, int len)
{
int i;
const char *p = data;
/* no data, don't print */
if (len == 0)
return;
if (util_is_printable_string(data, len)) {
printf(" = \"%s\"", (const char *)data);
} else if ((len % 4) == 0) {
printf(" = <");
for (i = 0; i < len; i += 4)
printf("0x%08x%s", fdt32_to_cpu(GET_CELL(p)),
i < (len - 4) ? " " : "");
printf(">");
} else {
printf(" = [");
for (i = 0; i < len; i++)
printf("%02x%s", *p++, i < len - 1 ? " " : "");
printf("]");
}
}
static void dump_blob(void *blob)
{
struct fdt_header *bph = blob;
uint32_t off_mem_rsvmap = fdt32_to_cpu(bph->off_mem_rsvmap);
uint32_t off_dt = fdt32_to_cpu(bph->off_dt_struct);
uint32_t off_str = fdt32_to_cpu(bph->off_dt_strings);
struct fdt_reserve_entry *p_rsvmap =
(struct fdt_reserve_entry *)((char *)blob + off_mem_rsvmap);
const char *p_struct = (const char *)blob + off_dt;
const char *p_strings = (const char *)blob + off_str;
uint32_t version = fdt32_to_cpu(bph->version);
uint32_t totalsize = fdt32_to_cpu(bph->totalsize);
uint32_t tag;
const char *p, *s, *t;
int depth, sz, shift;
int i;
uint64_t addr, size;
depth = 0;
shift = 4;
printf("/dts-v1/;\n");
printf("// magic:\t\t0x%x\n", fdt32_to_cpu(bph->magic));
printf("// totalsize:\t\t0x%x (%d)\n", totalsize, totalsize);
printf("// off_dt_struct:\t0x%x\n", off_dt);
printf("// off_dt_strings:\t0x%x\n", off_str);
printf("// off_mem_rsvmap:\t0x%x\n", off_mem_rsvmap);
printf("// version:\t\t%d\n", version);
printf("// last_comp_version:\t%d\n",
fdt32_to_cpu(bph->last_comp_version));
if (version >= 2)
printf("// boot_cpuid_phys:\t0x%x\n",
fdt32_to_cpu(bph->boot_cpuid_phys));
if (version >= 3)
printf("// size_dt_strings:\t0x%x\n",
fdt32_to_cpu(bph->size_dt_strings));
if (version >= 17)
printf("// size_dt_struct:\t0x%x\n",
fdt32_to_cpu(bph->size_dt_struct));
printf("\n");
for (i = 0; ; i++) {
addr = fdt64_to_cpu(p_rsvmap[i].address);
size = fdt64_to_cpu(p_rsvmap[i].size);
if (addr == 0 && size == 0)
break;
printf("/memreserve/ %llx %llx;\n",
(unsigned long long)addr, (unsigned long long)size);
}
p = p_struct;
while ((tag = fdt32_to_cpu(GET_CELL(p))) != FDT_END) {
/* printf("tag: 0x%08x (%d)\n", tag, p - p_struct); */
if (tag == FDT_BEGIN_NODE) {
s = p;
p = PALIGN(p + strlen(s) + 1, 4);
if (*s == '\0')
s = "/";
printf("%*s%s {\n", depth * shift, "", s);
depth++;
continue;
}
if (tag == FDT_END_NODE) {
depth--;
printf("%*s};\n", depth * shift, "");
continue;
}
if (tag == FDT_NOP) {
printf("%*s// [NOP]\n", depth * shift, "");
continue;
}
if (tag != FDT_PROP) {
fprintf(stderr, "%*s ** Unknown tag 0x%08x\n", depth * shift, "", tag);
break;
}
sz = fdt32_to_cpu(GET_CELL(p));
s = p_strings + fdt32_to_cpu(GET_CELL(p));
if (version < 16 && sz >= 8)
p = PALIGN(p, 8);
t = p;
p = PALIGN(p + sz, 4);
printf("%*s%s", depth * shift, "", s);
print_data(t, sz);
printf(";\n");
}
}
int main(int argc, char *argv[])
{
char *buf;
if (argc < 2) {
fprintf(stderr, "supply input filename\n");
return 5;
}
buf = utilfdt_read(argv[1]);
if (buf)
dump_blob(buf);
else
return 10;
return 0;
}

208
scripts/dtc/fdtoverlay.c Normal file
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@ -0,0 +1,208 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2017 Konsulko Group Inc. All rights reserved.
*
* Author:
* Pantelis Antoniou <pantelis.antoniou@konsulko.com>
*/
#include <assert.h>
#include <ctype.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <libfdt.h>
#include "util.h"
#define BUF_INCREMENT 65536
/* Usage related data. */
static const char usage_synopsis[] =
"apply a number of overlays to a base blob\n"
" fdtoverlay <options> [<overlay.dtbo> [<overlay.dtbo>]]\n"
"\n"
USAGE_TYPE_MSG;
static const char usage_short_opts[] = "i:o:v" USAGE_COMMON_SHORT_OPTS;
static struct option const usage_long_opts[] = {
{"input", required_argument, NULL, 'i'},
{"output", required_argument, NULL, 'o'},
{"verbose", no_argument, NULL, 'v'},
USAGE_COMMON_LONG_OPTS,
};
static const char * const usage_opts_help[] = {
"Input base DT blob",
"Output DT blob",
"Verbose messages",
USAGE_COMMON_OPTS_HELP
};
int verbose = 0;
static void *apply_one(char *base, const char *overlay, size_t *buf_len,
const char *name)
{
char *tmp = NULL;
char *tmpo;
int ret;
/*
* We take a copies first, because a a failed apply can trash
* both the base blob and the overlay
*/
tmpo = xmalloc(fdt_totalsize(overlay));
do {
tmp = xrealloc(tmp, *buf_len);
ret = fdt_open_into(base, tmp, *buf_len);
if (ret) {
fprintf(stderr,
"\nFailed to make temporary copy: %s\n",
fdt_strerror(ret));
goto fail;
}
memcpy(tmpo, overlay, fdt_totalsize(overlay));
ret = fdt_overlay_apply(tmp, tmpo);
if (ret == -FDT_ERR_NOSPACE) {
*buf_len += BUF_INCREMENT;
}
} while (ret == -FDT_ERR_NOSPACE);
if (ret) {
fprintf(stderr, "\nFailed to apply '%s': %s\n",
name, fdt_strerror(ret));
goto fail;
}
free(base);
free(tmpo);
return tmp;
fail:
free(tmpo);
if (tmp)
free(tmp);
return NULL;
}
static int do_fdtoverlay(const char *input_filename,
const char *output_filename,
int argc, char *argv[])
{
char *blob = NULL;
char **ovblob = NULL;
size_t buf_len;
int i, ret = -1;
blob = utilfdt_read(input_filename, &buf_len);
if (!blob) {
fprintf(stderr, "\nFailed to read '%s'\n", input_filename);
goto out_err;
}
if (fdt_totalsize(blob) > buf_len) {
fprintf(stderr,
"\nBase blob is incomplete (%lu / %" PRIu32 " bytes read)\n",
(unsigned long)buf_len, fdt_totalsize(blob));
goto out_err;
}
/* allocate blob pointer array */
ovblob = xmalloc(sizeof(*ovblob) * argc);
memset(ovblob, 0, sizeof(*ovblob) * argc);
/* read and keep track of the overlay blobs */
for (i = 0; i < argc; i++) {
size_t ov_len;
ovblob[i] = utilfdt_read(argv[i], &ov_len);
if (!ovblob[i]) {
fprintf(stderr, "\nFailed to read '%s'\n", argv[i]);
goto out_err;
}
if (fdt_totalsize(ovblob[i]) > ov_len) {
fprintf(stderr,
"\nOverlay '%s' is incomplete (%lu / %" PRIu32 " bytes read)\n",
argv[i], (unsigned long)ov_len,
fdt_totalsize(ovblob[i]));
goto out_err;
}
}
buf_len = fdt_totalsize(blob);
/* apply the overlays in sequence */
for (i = 0; i < argc; i++) {
blob = apply_one(blob, ovblob[i], &buf_len, argv[i]);
if (!blob)
goto out_err;
}
fdt_pack(blob);
ret = utilfdt_write(output_filename, blob);
if (ret)
fprintf(stderr, "\nFailed to write '%s'\n",
output_filename);
out_err:
if (ovblob) {
for (i = 0; i < argc; i++) {
if (ovblob[i])
free(ovblob[i]);
}
free(ovblob);
}
free(blob);
return ret;
}
int main(int argc, char *argv[])
{
int opt, i;
char *input_filename = NULL;
char *output_filename = NULL;
while ((opt = util_getopt_long()) != EOF) {
switch (opt) {
case_USAGE_COMMON_FLAGS
case 'i':
input_filename = optarg;
break;
case 'o':
output_filename = optarg;
break;
case 'v':
verbose = 1;
break;
}
}
if (!input_filename)
usage("missing input file");
if (!output_filename)
usage("missing output file");
argv += optind;
argc -= optind;
if (argc <= 0)
usage("missing overlay file(s)");
if (verbose) {
printf("input = %s\n", input_filename);
printf("output = %s\n", output_filename);
for (i = 0; i < argc; i++)
printf("overlay[%d] = %s\n", i, argv[i]);
}
if (do_fdtoverlay(input_filename, output_filename, argc, argv))
return 1;
return 0;
}

8
scripts/dtc/flattree.c
Просмотреть файл

@ -149,7 +149,7 @@ static void asm_emit_align(void *e, int a)
static void asm_emit_data(void *e, struct data d)
{
FILE *f = e;
int off = 0;
unsigned int off = 0;
struct marker *m = d.markers;
for_each_marker_of_type(m, LABEL)
@ -219,7 +219,7 @@ static struct emitter asm_emitter = {
static int stringtable_insert(struct data *d, const char *str)
{
int i;
unsigned int i;
/* FIXME: do this more efficiently? */
@ -345,7 +345,7 @@ static void make_fdt_header(struct fdt_header *fdt,
void dt_to_blob(FILE *f, struct dt_info *dti, int version)
{
struct version_info *vi = NULL;
int i;
unsigned int i;
struct data blob = empty_data;
struct data reservebuf = empty_data;
struct data dtbuf = empty_data;
@ -446,7 +446,7 @@ static void dump_stringtable_asm(FILE *f, struct data strbuf)
void dt_to_asm(FILE *f, struct dt_info *dti, int version)
{
struct version_info *vi = NULL;
int i;
unsigned int i;
struct data strbuf = empty_data;
struct reserve_info *re;
const char *symprefix = "dt";

4
scripts/dtc/libfdt/fdt.c
Просмотреть файл

@ -22,6 +22,10 @@ int32_t fdt_ro_probe_(const void *fdt)
if (can_assume(VALID_DTB))
return totalsize;
/* The device tree must be at an 8-byte aligned address */
if ((uintptr_t)fdt & 7)
return -FDT_ERR_ALIGNMENT;
if (fdt_magic(fdt) == FDT_MAGIC) {
/* Complete tree */
if (!can_assume(LATEST)) {

20
scripts/dtc/libfdt/fdt_ro.c
Просмотреть файл

@ -181,8 +181,8 @@ int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size)
if (!can_assume(VALID_INPUT) && !re)
return -FDT_ERR_BADOFFSET;
*address = fdt64_ld(&re->address);
*size = fdt64_ld(&re->size);
*address = fdt64_ld_(&re->address);
*size = fdt64_ld_(&re->size);
return 0;
}
@ -192,7 +192,7 @@ int fdt_num_mem_rsv(const void *fdt)
const struct fdt_reserve_entry *re;
for (i = 0; (re = fdt_mem_rsv(fdt, i)) != NULL; i++) {
if (fdt64_ld(&re->size) == 0)
if (fdt64_ld_(&re->size) == 0)
return i;
}
return -FDT_ERR_TRUNCATED;
@ -370,7 +370,7 @@ static const struct fdt_property *fdt_get_property_by_offset_(const void *fdt,
prop = fdt_offset_ptr_(fdt, offset);
if (lenp)
*lenp = fdt32_ld(&prop->len);
*lenp = fdt32_ld_(&prop->len);
return prop;
}
@ -408,7 +408,7 @@ static const struct fdt_property *fdt_get_property_namelen_(const void *fdt,
offset = -FDT_ERR_INTERNAL;
break;
}
if (fdt_string_eq_(fdt, fdt32_ld(&prop->nameoff),
if (fdt_string_eq_(fdt, fdt32_ld_(&prop->nameoff),
name, namelen)) {
if (poffset)
*poffset = offset;
@ -461,7 +461,7 @@ const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
/* Handle realignment */
if (!can_assume(LATEST) && fdt_version(fdt) < 0x10 &&
(poffset + sizeof(*prop)) % 8 && fdt32_ld(&prop->len) >= 8)
(poffset + sizeof(*prop)) % 8 && fdt32_ld_(&prop->len) >= 8)
return prop->data + 4;
return prop->data;
}
@ -479,7 +479,7 @@ const void *fdt_getprop_by_offset(const void *fdt, int offset,
int namelen;
if (!can_assume(VALID_INPUT)) {
name = fdt_get_string(fdt, fdt32_ld(&prop->nameoff),
name = fdt_get_string(fdt, fdt32_ld_(&prop->nameoff),
&namelen);
if (!name) {
if (lenp)
@ -488,13 +488,13 @@ const void *fdt_getprop_by_offset(const void *fdt, int offset,
}
*namep = name;
} else {
*namep = fdt_string(fdt, fdt32_ld(&prop->nameoff));
*namep = fdt_string(fdt, fdt32_ld_(&prop->nameoff));
}
}
/* Handle realignment */
if (!can_assume(LATEST) && fdt_version(fdt) < 0x10 &&
(offset + sizeof(*prop)) % 8 && fdt32_ld(&prop->len) >= 8)
(offset + sizeof(*prop)) % 8 && fdt32_ld_(&prop->len) >= 8)
return prop->data + 4;
return prop->data;
}
@ -519,7 +519,7 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
return 0;
}
return fdt32_ld(php);
return fdt32_ld_(php);
}
const char *fdt_get_alias_namelen(const void *fdt,

4
scripts/dtc/libfdt/fdt_rw.c
Просмотреть файл

@ -428,12 +428,14 @@ int fdt_open_into(const void *fdt, void *buf, int bufsize)
if (can_assume(LATEST) || fdt_version(fdt) >= 17) {
struct_size = fdt_size_dt_struct(fdt);
} else {
} else if (fdt_version(fdt) == 16) {
struct_size = 0;
while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)
;
if (struct_size < 0)
return struct_size;
} else {
return -FDT_ERR_BADVERSION;
}
if (can_assume(LIBFDT_ORDER) ||

2
scripts/dtc/libfdt/fdt_sw.c
Просмотреть файл

@ -377,7 +377,7 @@ int fdt_finish(void *fdt)
fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));
/* And fix up fields that were keeping intermediate state. */
fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);
fdt_set_last_comp_version(fdt, FDT_LAST_COMPATIBLE_VERSION);
fdt_set_magic(fdt, FDT_MAGIC);
return 0;

120
scripts/dtc/libfdt/libfdt.h
Просмотреть файл

@ -14,6 +14,7 @@ extern "C" {
#endif
#define FDT_FIRST_SUPPORTED_VERSION 0x02
#define FDT_LAST_COMPATIBLE_VERSION 0x10
#define FDT_LAST_SUPPORTED_VERSION 0x11
/* Error codes: informative error codes */
@ -101,7 +102,11 @@ extern "C" {
/* FDT_ERR_BADFLAGS: The function was passed a flags field that
* contains invalid flags or an invalid combination of flags. */
#define FDT_ERR_MAX 18
#define FDT_ERR_ALIGNMENT 19
/* FDT_ERR_ALIGNMENT: The device tree base address is not 8-byte
* aligned. */
#define FDT_ERR_MAX 19
/* constants */
#define FDT_MAX_PHANDLE 0xfffffffe
@ -122,12 +127,10 @@ static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen)
uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset);
/*
* Alignment helpers:
* These helpers access words from a device tree blob. They're
* built to work even with unaligned pointers on platforms (ike
* ARM) that don't like unaligned loads and stores
* External helpers to access words from a device tree blob. They're built
* to work even with unaligned pointers on platforms (such as ARMv5) that don't
* like unaligned loads and stores.
*/
static inline uint32_t fdt32_ld(const fdt32_t *p)
{
const uint8_t *bp = (const uint8_t *)p;
@ -184,22 +187,22 @@ 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
*
* 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
* @fdt: FDT blob
* @offset: Offset of previous 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
* Return: offset of next subnode, or -FDT_ERR_NOTFOUND if there are no more
* subnodes
*/
int fdt_next_subnode(const void *fdt, int offset);
@ -225,7 +228,6 @@ int fdt_next_subnode(const void *fdt, int offset);
* Note that this is implemented as a macro and @node is used as
* iterator in the loop. The parent variable be constant or even a
* literal.
*
*/
#define fdt_for_each_subnode(node, fdt, parent) \
for (node = fdt_first_subnode(fdt, parent); \
@ -269,17 +271,21 @@ fdt_set_hdr_(size_dt_struct);
/**
* fdt_header_size - return the size of the tree's header
* @fdt: pointer to a flattened device tree
*
* Return: size of DTB header in bytes
*/
size_t fdt_header_size(const void *fdt);
/**
* fdt_header_size_ - internal function which takes a version number
* fdt_header_size_ - internal function to get header size from a version number
* @version: devicetree version number
*
* Return: size of DTB header in bytes
*/
size_t fdt_header_size_(uint32_t version);
/**
* fdt_check_header - sanity check a device tree header
* @fdt: pointer to data which might be a flattened device tree
*
* fdt_check_header() checks that the given buffer contains what
@ -404,8 +410,7 @@ static inline uint32_t fdt_get_max_phandle(const void *fdt)
* highest phandle value in the device tree blob) will be returned in the
* @phandle parameter.
*
* Returns:
* 0 on success or a negative error-code on failure
* Return: 0 on success or a negative error-code on failure
*/
int fdt_generate_phandle(const void *fdt, uint32_t *phandle);
@ -425,9 +430,11 @@ int fdt_num_mem_rsv(const void *fdt);
/**
* fdt_get_mem_rsv - retrieve one memory reserve map entry
* @fdt: pointer to the device tree blob
* @address, @size: pointers to 64-bit variables
* @n: index of reserve map entry
* @address: pointer to 64-bit variable to hold the start address
* @size: pointer to 64-bit variable to hold the size of the entry
*
* On success, *address and *size will contain the address and size of
* On success, @address and @size will contain the address and size of
* the n-th reserve map entry from the device tree blob, in
* native-endian format.
*
@ -450,6 +457,8 @@ int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size);
* namelen characters of name for matching the subnode name. This is
* useful for finding subnodes based on a portion of a larger string,
* such as a full path.
*
* Return: offset of the subnode or -FDT_ERR_NOTFOUND if name not found.
*/
#ifndef SWIG /* Not available in Python */
int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
@ -489,6 +498,8 @@ int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name);
*
* Identical to fdt_path_offset(), but only consider the first namelen
* characters of path as the path name.
*
* Return: offset of the node or negative libfdt error value otherwise
*/
#ifndef SWIG /* Not available in Python */
int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen);
@ -588,7 +599,7 @@ int fdt_next_property_offset(const void *fdt, int offset);
/**
* fdt_for_each_property_offset - iterate over all properties of a node
*
* @property_offset: property offset (int, lvalue)
* @property: property offset (int, lvalue)
* @fdt: FDT blob (const void *)
* @node: node offset (int)
*
@ -653,6 +664,9 @@ const struct fdt_property *fdt_get_property_by_offset(const void *fdt,
*
* Identical to fdt_get_property(), but only examine the first namelen
* characters of name for matching the property name.
*
* Return: pointer to the structure representing the property, or NULL
* if not found
*/
#ifndef SWIG /* Not available in Python */
const struct fdt_property *fdt_get_property_namelen(const void *fdt,
@ -745,6 +759,8 @@ const void *fdt_getprop_by_offset(const void *fdt, int offset,
*
* Identical to fdt_getprop(), but only examine the first namelen
* characters of name for matching the property name.
*
* Return: pointer to the property's value or NULL on error
*/
#ifndef SWIG /* Not available in Python */
const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
@ -766,10 +782,10 @@ static inline void *fdt_getprop_namelen_w(void *fdt, int nodeoffset,
* @lenp: pointer to an integer variable (will be overwritten) or NULL
*
* fdt_getprop() retrieves a pointer to the value of the property
* named 'name' of the node at offset nodeoffset (this will be a
* 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 is also
* returned, in the integer pointed to by lenp.
* If @lenp is non-NULL, the length of the property value is also
* returned, in the integer pointed to by @lenp.
*
* returns:
* pointer to the property's value
@ -814,8 +830,11 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
* @name: name of the alias th look up
* @namelen: number of characters of name to consider
*
* Identical to fdt_get_alias(), but only examine the first namelen
* characters of name for matching the alias name.
* Identical to fdt_get_alias(), but only examine the first @namelen
* characters of @name for matching the alias name.
*
* Return: a pointer to the expansion of the alias named @name, if it exists,
* NULL otherwise
*/
#ifndef SWIG /* Not available in Python */
const char *fdt_get_alias_namelen(const void *fdt,
@ -828,7 +847,7 @@ const char *fdt_get_alias_namelen(const void *fdt,
* @name: name of the alias th look up
*
* fdt_get_alias() retrieves the value of a given alias. That is, the
* value of the property named 'name' in the node /aliases.
* value of the property named @name in the node /aliases.
*
* returns:
* a pointer to the expansion of the alias named 'name', if it exists
@ -1004,14 +1023,13 @@ int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle);
/**
* fdt_node_check_compatible: check a node's compatible property
* fdt_node_check_compatible - check a node's compatible property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of a tree node
* @compatible: string to match against
*
*
* fdt_node_check_compatible() returns 0 if the given node contains a
* 'compatible' property with the given string as one of its elements,
* @compatible property with the given string as one of its elements,
* it returns non-zero otherwise, or on error.
*
* returns:
@ -1075,7 +1093,7 @@ int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
* 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
* 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);
@ -1084,7 +1102,8 @@ int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of a tree node
* @property: name of the property containing the string list
* @return:
*
* Return:
* the number of strings in the given property
* -FDT_ERR_BADVALUE if the property value is not NUL-terminated
* -FDT_ERR_NOTFOUND if the property does not exist
@ -1104,7 +1123,7 @@ int fdt_stringlist_count(const void *fdt, int nodeoffset, const char *property);
* small-valued cell properties, such as #address-cells, when searching for
* the empty string.
*
* @return:
* return:
* the index of the string in the list of strings
* -FDT_ERR_BADVALUE if the property value is not NUL-terminated
* -FDT_ERR_NOTFOUND if the property does not exist or does not contain
@ -1128,7 +1147,7 @@ int fdt_stringlist_search(const void *fdt, int nodeoffset, const char *property,
* If non-NULL, the length of the string (on success) or a negative error-code
* (on failure) will be stored in the integer pointer to by lenp.
*
* @return:
* Return:
* A pointer to the string at the given index in the string list or NULL on
* failure. On success the length of the string will be stored in the memory
* location pointed to by the lenp parameter, if non-NULL. On failure one of
@ -1217,6 +1236,8 @@ int fdt_size_cells(const void *fdt, int nodeoffset);
* starting from the given index, and using only the first characters
* of the name. It is useful when you want to manipulate only one value of
* an array and you have a string that doesn't end with \0.
*
* Return: 0 on success, negative libfdt error value otherwise
*/
#ifndef SWIG /* Not available in Python */
int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
@ -1330,8 +1351,13 @@ static inline int fdt_setprop_inplace_u64(void *fdt, int nodeoffset,
/**
* fdt_setprop_inplace_cell - change the value of a single-cell property
* @fdt: pointer to the device tree blob
* @nodeoffset: offset of the node containing the property
* @name: name of the property to change the value of
* @val: new value of the 32-bit cell
*
* This is an alternative name for fdt_setprop_inplace_u32()
* Return: 0 on success, negative libfdt error number otherwise.
*/
static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset,
const char *name, uint32_t val)
@ -1403,7 +1429,7 @@ int fdt_nop_node(void *fdt, int nodeoffset);
/**
* fdt_create_with_flags - begin creation of a new fdt
* @fdt: pointer to memory allocated where fdt will be created
* @buf: pointer to memory allocated where fdt will be created
* @bufsize: size of the memory space at fdt
* @flags: a valid combination of FDT_CREATE_FLAG_ flags, or 0.
*
@ -1421,7 +1447,7 @@ int fdt_create_with_flags(void *buf, int bufsize, uint32_t flags);
/**
* fdt_create - begin creation of a new fdt
* @fdt: pointer to memory allocated where fdt will be created
* @buf: pointer to memory allocated where fdt will be created
* @bufsize: size of the memory space at fdt
*
* fdt_create() is equivalent to fdt_create_with_flags() with flags=0.
@ -1486,7 +1512,8 @@ 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)
* @address: 64-bit start address of the reserve map entry
* @size: 64-bit size of the reserved region
*
* Adds a reserve map entry to the given blob reserving a region at
* address address of length size.
@ -1691,8 +1718,14 @@ static inline int fdt_setprop_u64(void *fdt, int nodeoffset, const char *name,
/**
* 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)
*
* This is an alternative name for fdt_setprop_u32()
*
* Return: 0 on success, negative libfdt error value otherwise.
*/
static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name,
uint32_t val)
@ -1863,8 +1896,14 @@ static inline int fdt_appendprop_u64(void *fdt, int nodeoffset,
/**
* fdt_appendprop_cell - append a single cell 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)
*
* This is an alternative name for fdt_appendprop_u32()
*
* Return: 0 on success, negative libfdt error value otherwise.
*/
static inline int fdt_appendprop_cell(void *fdt, int nodeoffset,
const char *name, uint32_t val)
@ -1967,13 +2006,16 @@ 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
* @name: name of the subnode to create
* @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
* 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.
*
* Return: structure block offset of the created subnode (>=0),
* negative libfdt error value otherwise
*/
#ifndef SWIG /* Not available in Python */
int fdt_add_subnode_namelen(void *fdt, int parentoffset,
@ -1992,7 +2034,7 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
*
* 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

19
scripts/dtc/libfdt/libfdt_internal.h
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@ -46,6 +46,25 @@ static inline struct fdt_reserve_entry *fdt_mem_rsv_w_(void *fdt, int n)
return (void *)(uintptr_t)fdt_mem_rsv_(fdt, n);
}
/*
* Internal helpers to access tructural elements of the device tree
* blob (rather than for exaple reading integers from within property
* values). We assume that we are either given a naturally aligned
* address for the platform or if we are not, we are on a platform
* where unaligned memory reads will be handled in a graceful manner.
* If not the external helpers fdtXX_ld() from libfdt.h can be used
* instead.
*/
static inline uint32_t fdt32_ld_(const fdt32_t *p)
{
return fdt32_to_cpu(*p);
}
static inline uint64_t fdt64_ld_(const fdt64_t *p)
{
return fdt64_to_cpu(*p);
}
#define FDT_SW_MAGIC (~FDT_MAGIC)
/**********************************************************************/

2
scripts/dtc/livetree.c
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@ -438,7 +438,7 @@ cell_t propval_cell(struct property *prop)
return fdt32_to_cpu(*((fdt32_t *)prop->val.val));
}
cell_t propval_cell_n(struct property *prop, int n)
cell_t propval_cell_n(struct property *prop, unsigned int n)
{
assert(prop->val.len / sizeof(cell_t) >= n);
return fdt32_to_cpu(*((fdt32_t *)prop->val.val + n));

2
scripts/dtc/srcpos.c
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@ -20,7 +20,7 @@ struct search_path {
static struct search_path *search_path_head, **search_path_tail;
/* Detect infinite include recursion. */
#define MAX_SRCFILE_DEPTH (100)
#define MAX_SRCFILE_DEPTH (200)
static int srcfile_depth; /* = 0 */
static char *get_dirname(const char *path)

3
scripts/dtc/update-dtc-source.sh
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@ -37,6 +37,7 @@ DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c
LIBFDT_SOURCE="fdt.c fdt.h fdt_addresses.c fdt_empty_tree.c \
fdt_overlay.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c \
fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h"
FDTOVERLAY_SOURCE=fdtoverlay.c
get_last_dtc_version() {
git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/'
@ -54,7 +55,7 @@ dtc_log=$(git log --oneline ${last_dtc_ver}..)
# Copy the files into the Linux tree
cd $DTC_LINUX_PATH
for f in $DTC_SOURCE; do
for f in $DTC_SOURCE $FDTOVERLAY_SOURCE; do
cp ${DTC_UPSTREAM_PATH}/${f} ${f}
git add ${f}
done

2
scripts/dtc/version_gen.h
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@ -1 +1 @@
#define DTC_VERSION "DTC 1.6.0-gcbca977e"
#define DTC_VERSION "DTC 1.6.0-g183df9e9"

6
scripts/dtc/yamltree.c
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@ -29,11 +29,11 @@ char *yaml_error_name[] = {
(emitter)->problem, __func__, __LINE__); \
})
static void yaml_propval_int(yaml_emitter_t *emitter, struct marker *markers, char *data, int len, int width)
static void yaml_propval_int(yaml_emitter_t *emitter, struct marker *markers, char *data, unsigned int len, int width)
{
yaml_event_t event;
void *tag;
int off, start_offset = markers->offset;
unsigned int off, start_offset = markers->offset;
switch(width) {
case 1: tag = "!u8"; break;
@ -112,7 +112,7 @@ static void yaml_propval_string(yaml_emitter_t *emitter, char *str, int len)
static void yaml_propval(yaml_emitter_t *emitter, struct property *prop)
{
yaml_event_t event;
int len = prop->val.len;
unsigned int len = prop->val.len;
struct marker *m = prop->val.markers;
/* Emit the property name */