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-rw-r--r--common/Makefile1
-rw-r--r--common/cmd_fdt.c134
-rw-r--r--common/fdt_support.c5
-rw-r--r--common/ft_build.c471
4 files changed, 73 insertions, 538 deletions
diff --git a/common/Makefile b/common/Makefile
index b425795..4287108 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -119,7 +119,6 @@ COBJS-y += env_nowhere.o
COBJS-y += exports.o
COBJS-y += flash.o
COBJS-y += fpga.o
-COBJS-y += ft_build.o
COBJS-y += hush.o
COBJS-y += kgdb.o
COBJS-y += lcd.o
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index ede65ae..97b9dd7 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -46,6 +46,11 @@ static int fdt_parse_prop(char **newval, int count, char *data, int *len);
static int fdt_print(const char *pathp, char *prop, int depth);
/*
+ * The working_fdt points to our working flattened device tree.
+ */
+struct fdt_header *working_fdt;
+
+/*
* Flattened Device Tree command, see the help for parameter definitions.
*/
int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
@@ -62,7 +67,7 @@ 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 +80,15 @@ 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));
@@ -92,9 +97,9 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
/********************************************************************
- * Move the fdt
+ * Move the working_fdt
********************************************************************/
- } else if ((argv[1][0] == 'm') && (argv[1][1] == 'o')) {
+ } else if (strncmp(argv[1], "mo", 2) == 0) {
struct fdt_header *newaddr;
int len;
int err;
@@ -107,7 +112,7 @@ 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 +124,13 @@ 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;
}
}
@@ -133,18 +138,18 @@ 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
********************************************************************/
- } else if ((argv[1][0] == 'm') && (argv[1][1] == 'k')) {
+ } else if (strncmp(argv[1], "mk", 2) == 0) {
char *pathp; /* path */
char *nodep; /* new node to add */
int nodeoffset; /* node offset from libfdt */
@@ -161,7 +166,7 @@ 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 +175,7 @@ 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 +183,7 @@ 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 +211,7 @@ 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 +221,7 @@ 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;
@@ -259,7 +264,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
/********************************************************************
* Remove a property/node
********************************************************************/
- } else if ((argv[1][0] == 'r') && (argv[1][1] == 'm')) {
+ } else if (strncmp(argv[1], "rm", 2) == 0) {
int nodeoffset; /* node offset from libfdt */
int err;
@@ -267,7 +272,7 @@ 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 +286,14 @@ 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));
@@ -300,38 +305,43 @@ 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");
/********************************************************************
* Set boot cpu id
********************************************************************/
- } else if ((argv[1][0] == 'b') && (argv[1][1] == 'o') &&
- (argv[1][2] == 'o')) {
+ } 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
********************************************************************/
- } else if ((argv[1][0] == 'm') && (argv[1][1] == 'e')) {
+ } else if (strncmp(argv[1], "me", 2) == 0) {
uint64_t addr, size;
int err;
#ifdef CFG_64BIT_STRTOUL
@@ -341,23 +351,23 @@ 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;
/********************************************************************
* mem reserve commands
********************************************************************/
- } else if ((argv[1][0] == 'r') && (argv[1][1] == 's')) {
+ } 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));
@@ -379,7 +389,7 @@ 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",
@@ -388,7 +398,7 @@ 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",
@@ -403,12 +413,12 @@ 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 (argv[1][0] == 'b')
- ft_board_setup(fdt, gd->bd);
+ else if (strncmp(argv[1], "boa", 3) == 0)
+ 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);
@@ -424,12 +434,12 @@ 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 */
@@ -439,17 +449,19 @@ 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;
}
@@ -645,7 +657,7 @@ 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)
@@ -661,7 +673,7 @@ 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.
@@ -675,7 +687,7 @@ 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);
@@ -697,10 +709,10 @@ 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 */";
@@ -724,9 +736,9 @@ 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..e58b294 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -35,11 +35,6 @@
*/
DECLARE_GLOBAL_DATA_PTR;
-/*
- * fdt points to our working device tree.
- */
-struct fdt_header *fdt;
-
/**
* fdt_find_and_setprop: Find a node and set it's property
diff --git a/common/ft_build.c b/common/ft_build.c
deleted file mode 100644
index b951178..0000000
--- a/common/ft_build.c
+++ /dev/null
@@ -1,471 +0,0 @@
-/*
- * OF flat tree builder
- * Written by: Pantelis Antoniou <pantelis.antoniou@gmail.com>
- * Updated by: Matthew McClintock <msm@freescale.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <malloc.h>
-#include <environment.h>
-
-#ifdef CONFIG_OF_FLAT_TREE
-
-#include <asm/errno.h>
-#include <stddef.h>
-
-#include <ft_build.h>
-#include <linux/ctype.h>
-
-#undef DEBUG
-
-/* align addr on a size boundary - adjust address up if needed -- Cort */
-#define _ALIGN(addr,size) (((addr)+(size)-1)&(~((size)-1)))
-#ifndef CONFIG_OF_BOOT_CPU
-#define CONFIG_OF_BOOT_CPU 0
-#endif
-#define SIZE_OF_RSVMAP_ENTRY (2*sizeof(u64))
-
-static void ft_put_word(struct ft_cxt *cxt, u32 v)
-{
- memmove(cxt->p + sizeof(u32), cxt->p, cxt->p_end - cxt->p);
-
- *(u32 *) cxt->p = cpu_to_be32(v);
- cxt->p += sizeof(u32);
- cxt->p_end += sizeof(u32);
-}
-
-static inline void ft_put_bin(struct ft_cxt *cxt, const void *data, int sz)
-{
- int aligned_size = ((u8 *)_ALIGN((unsigned long)cxt->p + sz,
- sizeof(u32))) - cxt->p;
-
- memmove(cxt->p + aligned_size, cxt->p, cxt->p_end - cxt->p);
-
- /* make sure the last bytes are zeroed */
- memset(cxt->p + aligned_size - (aligned_size % sizeof(u32)), 0,
- (aligned_size % sizeof(u32)));
-
- memcpy(cxt->p, data, sz);
-
- cxt->p += aligned_size;
- cxt->p_end += aligned_size;
-}
-
-void ft_begin_node(struct ft_cxt *cxt, const char *name)
-{
- ft_put_word(cxt, OF_DT_BEGIN_NODE);
- ft_put_bin(cxt, name, strlen(name) + 1);
-}
-
-void ft_end_node(struct ft_cxt *cxt)
-{
- ft_put_word(cxt, OF_DT_END_NODE);
-}
-
-void ft_nop(struct ft_cxt *cxt)
-{
- ft_put_word(cxt, OF_DT_NOP);
-}
-
-static int lookup_string(struct ft_cxt *cxt, const char *name)
-{
- u8 *p;
-
- p = cxt->p;
- while (p < cxt->p_end) {
- if (strcmp((char *)p, name) == 0)
- return p - cxt->p;
- p += strlen((char *)p) + 1;
- }
-
- return -1;
-}
-
-void ft_prop(struct ft_cxt *cxt, const char *name, const void *data, int sz)
-{
- int off = 0;
-
- off = lookup_string(cxt, name);
- if (off == -1) {
- memcpy(cxt->p_end, name, strlen(name) + 1);
- off = cxt->p_end - cxt->p;
- cxt->p_end += strlen(name) + 1;
- }
-
- /* now put offset from beginning of *STRUCTURE* */
- /* will be fixed up at the end */
- ft_put_word(cxt, OF_DT_PROP);
- ft_put_word(cxt, sz);
- ft_put_word(cxt, off);
- ft_put_bin(cxt, data, sz);
-}
-
-void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str)
-{
- ft_prop(cxt, name, str, strlen(str) + 1);
-}
-
-void ft_prop_int(struct ft_cxt *cxt, const char *name, int val)
-{
- u32 v = cpu_to_be32((u32) val);
-
- ft_prop(cxt, name, &v, sizeof(u32));
-}
-
-/* pick up and start working on a tree in place */
-void ft_init_cxt(struct ft_cxt *cxt, void *blob)
-{
- struct boot_param_header *bph = blob;
-
- memset(cxt, 0, sizeof(*cxt));
-
- cxt->bph = bph;
- bph->boot_cpuid_phys = CONFIG_OF_BOOT_CPU;
-
- /* find beginning and end of reserve map table (zeros in last entry) */
- cxt->p_rsvmap = (u8 *)bph + bph->off_mem_rsvmap;
- while ( ((uint64_t *)cxt->p_rsvmap)[0] != 0 &&
- ((uint64_t *)cxt->p_rsvmap)[1] != 0 ) {
- cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY;
- }
-
- cxt->p_start = (u8 *)bph + bph->off_dt_struct;
- cxt->p_end = (u8 *)bph + bph->totalsize;
- cxt->p = (u8 *)bph + bph->off_dt_strings;
-}
-
-/* add a reserver physical area to the rsvmap */
-void ft_add_rsvmap(struct ft_cxt *cxt, u64 physstart, u64 physend)
-{
- memmove(cxt->p_rsvmap + SIZE_OF_RSVMAP_ENTRY, cxt->p_rsvmap,
- cxt->p_end - cxt->p_rsvmap);
-
- ((u64 *)cxt->p_rsvmap)[0] = cpu_to_be64(physstart);
- ((u64 *)cxt->p_rsvmap)[1] = cpu_to_be64(physend);
- ((u64 *)cxt->p_rsvmap)[2] = 0;
- ((u64 *)cxt->p_rsvmap)[3] = 0;
-
- cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY;
- cxt->p_start += SIZE_OF_RSVMAP_ENTRY;
- cxt->p += SIZE_OF_RSVMAP_ENTRY;
- cxt->p_end += SIZE_OF_RSVMAP_ENTRY;
-}
-
-void ft_end_tree(struct ft_cxt *cxt)
-{
- ft_put_word(cxt, OF_DT_END);
-}
-
-/* update the boot param header with correct values */
-void ft_finalize_tree(struct ft_cxt *cxt) {
- struct boot_param_header *bph = cxt->bph;
-
- bph->totalsize = cxt->p_end - (u8 *)bph;
- bph->off_dt_struct = cxt->p_start - (u8 *)bph;
- bph->off_dt_strings = cxt->p - (u8 *)bph;
- bph->dt_strings_size = cxt->p_end - cxt->p;
-}
-
-static int is_printable_string(const void *data, int len)
-{
- const char *s = data;
- const char *ss;
-
- /* zero length is not */
- if (len == 0)
- return 0;
-
- /* must terminate with zero */
- if (s[len - 1] != '\0')
- return 0;
-
- ss = s;
- while (*s && isprint(*s))
- s++;
-
- /* not zero, or not done yet */
- if (*s != '\0' || (s + 1 - ss) < len)
- return 0;
-
- return 1;
-}
-
-static void print_data(const void *data, int len)
-{
- int i;
- const u8 *s;
-
- /* no data, don't print */
- if (len == 0)
- return;
-
- if (is_printable_string(data, len)) {
- puts(" = \"");
- puts(data);
- puts("\"");
- return;
- }
-
- switch (len) {
- case 1: /* byte */
- printf(" = <%02x>", (*(u8 *) data) & 0xff);
- break;
- case 2: /* half-word */
- printf(" = <%04x>", be16_to_cpu(*(u16 *) data) & 0xffff);
- break;
- case 4: /* word */
- printf(" = <%x>", be32_to_cpu(*(u32 *) data) & 0xffffffffU);
- break;
- case 8: /* double-word */
- printf(" = <%qx>", be64_to_cpu(*(uint64_t *) data));
- break;
- default: /* anything else... hexdump */
- printf(" = [");
- for (i = 0, s = data; i < len; i++)
- printf("%02x%s", s[i], i < len - 1 ? " " : "");
- printf("]");
-
- break;
- }
-}
-
-void ft_dump_blob(const void *bphp)
-{
- const struct boot_param_header *bph = bphp;
- const uint64_t *p_rsvmap = (const uint64_t *)
- ((const char *)bph + be32_to_cpu(bph->off_mem_rsvmap));
- const u32 *p_struct = (const u32 *)
- ((const char *)bph + be32_to_cpu(bph->off_dt_struct));
- const u32 *p_strings = (const u32 *)
- ((const char *)bph + be32_to_cpu(bph->off_dt_strings));
- u32 tag;
- const u32 *p;
- const char *s, *t;
- int depth, sz, shift;
- int i;
- uint64_t addr, size;
-
- if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
- /* not valid tree */
- return;
- }
-
- depth = 0;
- shift = 4;
-
- for (i = 0;; i++) {
- addr = be64_to_cpu(p_rsvmap[i * 2]);
- size = be64_to_cpu(p_rsvmap[i * 2 + 1]);
- if (addr == 0 && size == 0)
- break;
-
- printf("/memreserve/ %qx %qx;\n", addr, size);
- }
-
- p = p_struct;
- while ((tag = be32_to_cpu(*p++)) != OF_DT_END) {
-
- /* printf("tag: 0x%08x (%d)\n", tag, p - p_struct); */
-
- if (tag == OF_DT_BEGIN_NODE) {
- s = (const char *)p;
- p = (u32 *) _ALIGN((unsigned long)p + strlen(s) + 1, 4);
-
- printf("%*s%s {\n", depth * shift, "", s);
-
- depth++;
- continue;
- }
-
- if (tag == OF_DT_END_NODE) {
- depth--;
-
- printf("%*s};\n", depth * shift, "");
- continue;
- }
-
- if (tag == OF_DT_NOP) {
- printf("%*s[NOP]\n", depth * shift, "");
- continue;
- }
-
- if (tag != OF_DT_PROP) {
- fprintf(stderr, "%*s ** Unknown tag 0x%08x at 0x%x\n",
- depth * shift, "", tag, --p);
- break;
- }
- sz = be32_to_cpu(*p++);
- s = (const char *)p_strings + be32_to_cpu(*p++);
- t = (const char *)p;
- p = (const u32 *)_ALIGN((unsigned long)p + sz, 4);
- printf("%*s%s", depth * shift, "", s);
- print_data(t, sz);
- printf(";\n");
- }
-}
-
-void ft_backtrack_node(struct ft_cxt *cxt)
-{
- int i = 4;
-
- while (be32_to_cpu(*(u32 *) (cxt->p - i)) != OF_DT_END_NODE)
- i += 4;
-
- memmove (cxt->p - i, cxt->p, cxt->p_end - cxt->p);
-
- cxt->p_end -= i;
- cxt->p -= i;
-}
-
-void *ft_get_prop(void *bphp, const char *propname, int *szp)
-{
- struct boot_param_header *bph = bphp;
- uint32_t *p_struct =
- (uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_struct));
- uint32_t *p_strings =
- (uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_strings));
- uint32_t version = be32_to_cpu(bph->version);
- uint32_t tag;
- uint32_t *p;
- char *s, *t;
- char *ss;
- int sz;
- static char path[256], prop[256];
-
- path[0] = '\0';
-
- p = p_struct;
- while ((tag = be32_to_cpu(*p++)) != OF_DT_END) {
-
- if (tag == OF_DT_BEGIN_NODE) {
- s = (char *)p;
- p = (uint32_t *) _ALIGN((unsigned long)p + strlen(s) +
- 1, 4);
- strcat(path, s);
- strcat(path, "/");
- continue;
- }
-
- if (tag == OF_DT_END_NODE) {
- path[strlen(path) - 1] = '\0';
- ss = strrchr(path, '/');
- if (ss != NULL)
- ss[1] = '\0';
- continue;
- }
-
- if (tag == OF_DT_NOP)
- continue;
-
- if (tag != OF_DT_PROP)
- break;
-
- sz = be32_to_cpu(*p++);
- s = (char *)p_strings + be32_to_cpu(*p++);
- if (version < 0x10 && sz >= 8)
- p = (uint32_t *) _ALIGN((unsigned long)p, 8);
- t = (char *)p;
- p = (uint32_t *) _ALIGN((unsigned long)p + sz, 4);
-
- strcpy(prop, path);
- strcat(prop, s);
-
- if (strcmp(prop, propname) == 0) {
- *szp = sz;
- return t;
- }
- }
-
- return NULL;
-}
-
-/********************************************************************/
-
-void ft_setup(void *blob, bd_t * bd, ulong initrd_start, ulong initrd_end)
-{
- u32 *p;
- int len;
- struct ft_cxt cxt;
- ulong clock;
-
- /* disable OF tree; booting old kernel */
- if (getenv("disable_of") != NULL) {
- memcpy(blob, bd, sizeof(*bd));
- return;
- }
-
-#ifdef DEBUG
- printf ("recieved oftree\n");
- ft_dump_blob(blob);
-#endif
-
- ft_init_cxt(&cxt, blob);
-
- if (initrd_start && initrd_end)
- ft_add_rsvmap(&cxt, initrd_start, initrd_end - initrd_start + 1);
-
- /* back into root */
- ft_backtrack_node(&cxt);
-
- ft_begin_node(&cxt, "chosen");
- ft_prop_str(&cxt, "name", "chosen");
-
- ft_prop_str(&cxt, "bootargs", getenv("bootargs"));
- ft_prop_int(&cxt, "linux,platform", 0x600); /* what is this? */
- if (initrd_start && initrd_end) {
- ft_prop_int(&cxt, "linux,initrd-start", initrd_start);
- ft_prop_int(&cxt, "linux,initrd-end", initrd_end);
- }
-#ifdef OF_STDOUT_PATH
- ft_prop_str(&cxt, "linux,stdout-path", OF_STDOUT_PATH);
-#endif
-
- ft_end_node(&cxt);
-
- ft_end_node(&cxt); /* end root */
-
- ft_end_tree(&cxt);
- ft_finalize_tree(&cxt);
-
-#ifdef CONFIG_PPC
- clock = bd->bi_intfreq;
- p = ft_get_prop(blob, "/cpus/" OF_CPU "/clock-frequency", &len);
- if (p != NULL)
- *p = cpu_to_be32(clock);
-
-#ifdef OF_TBCLK
- clock = OF_TBCLK;
- p = ft_get_prop(blob, "/cpus/" OF_CPU "/timebase-frequency", &len);
- if (p != NULL)
- *p = cpu_to_be32(clock);
-#endif
-#endif /* __powerpc__ */
-
-#ifdef CONFIG_OF_BOARD_SETUP
- ft_board_setup(blob, bd);
-#endif
-
- /* in case the size changed in the platform code */
- ft_finalize_tree(&cxt);
-
-#ifdef DEBUG
- printf("final OF-tree\n");
- ft_dump_blob(blob);
-#endif
-}
-#endif
generated by cgit v1.1 at 2024-11-26 23:11:47 +0000