[U-Boot-Users] [PATCH] fdt: unshadow global working fdt variable
Kim Phillips
kim.phillips at freescale.com
Tue Jun 10 18:06:17 CEST 2008
differentiate with local variables of the same name by renaming the
global 'fdt' variable 'working_fdt'.
Signed-off-by: Kim Phillips <kim.phillips at freescale.com>
---
applies to current u-boot-fdt.git.
common/cmd_fdt.c | 114 +++++++++++++++++++++++++++-----------------------
common/fdt_support.c | 2 +-
include/libfdt_env.h | 2 +-
lib_ppc/bootm.c | 2 +-
4 files changed, 64 insertions(+), 56 deletions(-)
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index 4285a96..5c3a0bb 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -62,7 +62,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
/*
* Set the address [and length] of the fdt.
*/
- fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
+ working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
@@ -75,15 +75,15 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
* Optional new length
*/
len = simple_strtoul(argv[3], NULL, 16);
- if (len < fdt_totalsize(fdt)) {
+ if (len < fdt_totalsize(working_fdt)) {
printf ("New length %d < existing length %d, "
"ignoring.\n",
- len, fdt_totalsize(fdt));
+ len, fdt_totalsize(working_fdt));
} else {
/*
* Open in place with a new length.
*/
- err = fdt_open_into(fdt, fdt, len);
+ err = fdt_open_into(working_fdt, working_fdt, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
@@ -92,7 +92,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
/********************************************************************
- * Move the fdt
+ * Move the working_fdt
********************************************************************/
} else if (strncmp(argv[1], "mo", 2) == 0) {
struct fdt_header *newaddr;
@@ -107,7 +107,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
/*
* Set the address and length of the fdt.
*/
- fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
+ working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
@@ -119,13 +119,13 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
* current length.
*/
if (argc <= 4) {
- len = fdt_totalsize(fdt);
+ len = fdt_totalsize(working_fdt);
} else {
len = simple_strtoul(argv[4], NULL, 16);
- if (len < fdt_totalsize(fdt)) {
+ if (len < fdt_totalsize(working_fdt)) {
printf ("New length 0x%X < existing length "
"0x%X, aborting.\n",
- len, fdt_totalsize(fdt));
+ len, fdt_totalsize(working_fdt));
return 1;
}
}
@@ -133,13 +133,13 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
/*
* Copy to the new location.
*/
- err = fdt_open_into(fdt, newaddr, len);
+ err = fdt_open_into(working_fdt, newaddr, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
return 1;
}
- fdt = newaddr;
+ working_fdt = newaddr;
/********************************************************************
* Make a new node
@@ -161,7 +161,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
pathp = argv[2];
nodep = argv[3];
- nodeoffset = fdt_path_offset (fdt, pathp);
+ nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
@@ -170,7 +170,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
fdt_strerror(nodeoffset));
return 1;
}
- err = fdt_add_subnode(fdt, nodeoffset, nodep);
+ err = fdt_add_subnode(working_fdt, nodeoffset, nodep);
if (err < 0) {
printf ("libfdt fdt_add_subnode(): %s\n",
fdt_strerror(err));
@@ -178,7 +178,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
/********************************************************************
- * Set the value of a property in the fdt.
+ * Set the value of a property in the working_fdt.
********************************************************************/
} else if (argv[1][0] == 's') {
char *pathp; /* path */
@@ -206,7 +206,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return ret;
}
- nodeoffset = fdt_path_offset (fdt, pathp);
+ nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
@@ -216,7 +216,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 1;
}
- ret = fdt_setprop(fdt, nodeoffset, prop, data, len);
+ ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len);
if (ret < 0) {
printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret));
return 1;
@@ -267,7 +267,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
* Get the path. The root node is an oddball, the offset
* is zero and has no name.
*/
- nodeoffset = fdt_path_offset (fdt, argv[2]);
+ nodeoffset = fdt_path_offset (working_fdt, argv[2]);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
@@ -281,14 +281,14 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
* otherwise delete the node.
*/
if (argc > 3) {
- err = fdt_delprop(fdt, nodeoffset, argv[3]);
+ err = fdt_delprop(working_fdt, nodeoffset, argv[3]);
if (err < 0) {
printf("libfdt fdt_delprop(): %s\n",
fdt_strerror(err));
return err;
}
} else {
- err = fdt_del_node(fdt, nodeoffset);
+ err = fdt_del_node(working_fdt, nodeoffset);
if (err < 0) {
printf("libfdt fdt_del_node(): %s\n",
fdt_strerror(err));
@@ -300,24 +300,30 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
* Display header info
********************************************************************/
} else if (argv[1][0] == 'h') {
- u32 version = fdt_version(fdt);
- printf("magic:\t\t\t0x%x\n", fdt_magic(fdt));
- printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(fdt), fdt_totalsize(fdt));
- printf("off_dt_struct:\t\t0x%x\n", fdt_off_dt_struct(fdt));
- printf("off_dt_strings:\t\t0x%x\n", fdt_off_dt_strings(fdt));
- printf("off_mem_rsvmap:\t\t0x%x\n", fdt_off_mem_rsvmap(fdt));
+ u32 version = fdt_version(working_fdt);
+ printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt));
+ printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt),
+ fdt_totalsize(working_fdt));
+ printf("off_dt_struct:\t\t0x%x\n",
+ fdt_off_dt_struct(working_fdt));
+ printf("off_dt_strings:\t\t0x%x\n",
+ fdt_off_dt_strings(working_fdt));
+ printf("off_mem_rsvmap:\t\t0x%x\n",
+ fdt_off_mem_rsvmap(working_fdt));
printf("version:\t\t%d\n", version);
- printf("last_comp_version:\t%d\n", fdt_last_comp_version(fdt));
+ printf("last_comp_version:\t%d\n",
+ fdt_last_comp_version(working_fdt));
if (version >= 2)
printf("boot_cpuid_phys:\t0x%x\n",
- fdt_boot_cpuid_phys(fdt));
+ fdt_boot_cpuid_phys(working_fdt));
if (version >= 3)
printf("size_dt_strings:\t0x%x\n",
- fdt_size_dt_strings(fdt));
+ fdt_size_dt_strings(working_fdt));
if (version >= 17)
printf("size_dt_struct:\t\t0x%x\n",
- fdt_size_dt_struct(fdt));
- printf("number mem_rsv:\t\t0x%x\n", fdt_num_mem_rsv(fdt));
+ fdt_size_dt_struct(working_fdt));
+ printf("number mem_rsv:\t\t0x%x\n",
+ fdt_num_mem_rsv(working_fdt));
printf("\n");
/********************************************************************
@@ -325,7 +331,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
********************************************************************/
} else if (strncmp(argv[1], "boo", 3) == 0) {
unsigned long tmp = simple_strtoul(argv[2], NULL, 16);
- fdt_set_boot_cpuid_phys(fdt, tmp);
+ fdt_set_boot_cpuid_phys(working_fdt, tmp);
/********************************************************************
* memory command
@@ -340,7 +346,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
addr = simple_strtoul(argv[2], NULL, 16);
size = simple_strtoul(argv[3], NULL, 16);
#endif
- err = fdt_fixup_memory(fdt, addr, size);
+ err = fdt_fixup_memory(working_fdt, addr, size);
if (err < 0)
return err;
@@ -350,13 +356,13 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
} else if (strncmp(argv[1], "rs", 2) == 0) {
if (argv[2][0] == 'p') {
uint64_t addr, size;
- int total = fdt_num_mem_rsv(fdt);
+ int total = fdt_num_mem_rsv(working_fdt);
int j, err;
printf("index\t\t start\t\t size\n");
printf("-------------------------------"
"-----------------\n");
for (j = 0; j < total; j++) {
- err = fdt_get_mem_rsv(fdt, j, &addr, &size);
+ err = fdt_get_mem_rsv(working_fdt, j, &addr, &size);
if (err < 0) {
printf("libfdt fdt_get_mem_rsv(): %s\n",
fdt_strerror(err));
@@ -378,7 +384,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
addr = simple_strtoul(argv[3], NULL, 16);
size = simple_strtoul(argv[4], NULL, 16);
#endif
- err = fdt_add_mem_rsv(fdt, addr, size);
+ err = fdt_add_mem_rsv(working_fdt, addr, size);
if (err < 0) {
printf("libfdt fdt_add_mem_rsv(): %s\n",
@@ -387,7 +393,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
} else if (argv[2][0] == 'd') {
unsigned long idx = simple_strtoul(argv[3], NULL, 16);
- int err = fdt_del_mem_rsv(fdt, idx);
+ int err = fdt_del_mem_rsv(working_fdt, idx);
if (err < 0) {
printf("libfdt fdt_del_mem_rsv(): %s\n",
@@ -403,11 +409,11 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
#ifdef CONFIG_OF_BOARD_SETUP
/* Call the board-specific fixup routine */
else if (strncmp(argv[1], "boa", 3) == 0)
- ft_board_setup(fdt, gd->bd);
+ ft_board_setup(working_fdt, gd->bd);
#endif
/* Create a chosen node */
else if (argv[1][0] == 'c')
- fdt_chosen(fdt, 0, 0, 1);
+ fdt_chosen(working_fdt, 0, 0, 1);
else {
/* Unrecognized command */
printf ("Usage:\n%s\n", cmdtp->usage);
@@ -423,12 +429,12 @@ static int fdt_valid(void)
{
int err;
- if (fdt == NULL) {
+ if (working_fdt == NULL) {
printf ("The address of the fdt is invalid (NULL).\n");
return 0;
}
- err = fdt_check_header(fdt);
+ err = fdt_check_header(working_fdt);
if (err == 0)
return 1; /* valid */
@@ -438,17 +444,19 @@ static int fdt_valid(void)
* Be more informative on bad version.
*/
if (err == -FDT_ERR_BADVERSION) {
- if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION) {
+ if (fdt_version(working_fdt) <
+ FDT_FIRST_SUPPORTED_VERSION) {
printf (" - too old, fdt $d < %d",
- fdt_version(fdt),
+ fdt_version(working_fdt),
FDT_FIRST_SUPPORTED_VERSION);
- fdt = NULL;
+ working_fdt = NULL;
}
- if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION) {
+ if (fdt_last_comp_version(working_fdt) >
+ FDT_LAST_SUPPORTED_VERSION) {
printf (" - too new, fdt $d > %d",
- fdt_version(fdt),
+ fdt_version(working_fdt),
FDT_LAST_SUPPORTED_VERSION);
- fdt = NULL;
+ working_fdt = NULL;
}
return 0;
}
@@ -644,7 +652,7 @@ static void print_data(const void *data, int len)
/****************************************************************************/
/*
- * Recursively print (a portion of) the fdt. The depth parameter
+ * Recursively print (a portion of) the working_fdt. The depth parameter
* determines how deeply nested the fdt is printed.
*/
static int fdt_print(const char *pathp, char *prop, int depth)
@@ -660,7 +668,7 @@ static int fdt_print(const char *pathp, char *prop, int depth)
int level = 0; /* keep track of nesting level */
const struct fdt_property *fdt_prop;
- nodeoffset = fdt_path_offset (fdt, pathp);
+ nodeoffset = fdt_path_offset (working_fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
@@ -674,7 +682,7 @@ static int fdt_print(const char *pathp, char *prop, int depth)
* Print only the given property and then return.
*/
if (prop) {
- nodep = fdt_getprop (fdt, nodeoffset, prop, &len);
+ nodep = fdt_getprop (working_fdt, nodeoffset, prop, &len);
if (len == 0) {
/* no property value */
printf("%s %s\n", pathp, prop);
@@ -696,10 +704,10 @@ static int fdt_print(const char *pathp, char *prop, int depth)
* print the node and all subnodes.
*/
while(level >= 0) {
- tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
+ tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset);
switch(tag) {
case FDT_BEGIN_NODE:
- pathp = fdt_get_name(fdt, nodeoffset, NULL);
+ pathp = fdt_get_name(working_fdt, nodeoffset, NULL);
if (level <= depth) {
if (pathp == NULL)
pathp = "/* NULL pointer error */";
@@ -723,9 +731,9 @@ static int fdt_print(const char *pathp, char *prop, int depth)
}
break;
case FDT_PROP:
- fdt_prop = fdt_offset_ptr(fdt, nodeoffset,
+ fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset,
sizeof(*fdt_prop));
- pathp = fdt_string(fdt,
+ pathp = fdt_string(working_fdt,
fdt32_to_cpu(fdt_prop->nameoff));
len = fdt32_to_cpu(fdt_prop->len);
nodep = fdt_prop->data;
diff --git a/common/fdt_support.c b/common/fdt_support.c
index 7507744..e8aa3e9 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -38,7 +38,7 @@ DECLARE_GLOBAL_DATA_PTR;
/*
* fdt points to our working device tree.
*/
-struct fdt_header *fdt;
+struct fdt_header *working_fdt;
/**
diff --git a/include/libfdt_env.h b/include/libfdt_env.h
index ab5c301..a7fd2f8 100644
--- a/include/libfdt_env.h
+++ b/include/libfdt_env.h
@@ -31,7 +31,7 @@
#include <stddef.h>
#include <asm/byteorder.h>
-extern struct fdt_header *fdt; /* Pointer to the working fdt */
+extern struct fdt_header *working_fdt; /* Pointer to the working fdt */
#define fdt32_to_cpu(x) __be32_to_cpu(x)
#define cpu_to_fdt32(x) __cpu_to_be32(x)
diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c
index 9194fd8..0421ce4 100644
--- a/lib_ppc/bootm.c
+++ b/lib_ppc/bootm.c
@@ -750,7 +750,7 @@ static int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
*of_flat_tree = (char *)of_start;
} else {
*of_flat_tree = fdt_blob;
- lmb_reserve(lmb, (ulong)fdt, of_len);
+ lmb_reserve(lmb, (ulong)working_fdt, of_len);
}
return 0;
--
1.5.6.rc0.84.g06f60
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