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-rw-r--r--common/env_flash.c175
1 files changed, 84 insertions, 91 deletions
diff --git a/common/env_flash.c b/common/env_flash.c
index e770ee6..a99f850 100644
--- a/common/env_flash.c
+++ b/common/env_flash.c
@@ -39,14 +39,15 @@ DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_FLASH)
#define CMD_SAVEENV
#elif defined(CONFIG_ENV_ADDR_REDUND)
-#error Cannot use CONFIG_ENV_ADDR_REDUND without CONFIG_CMD_SAVEENV & CONFIG_CMD_FLASH
+#error CONFIG_ENV_ADDR_REDUND must have CONFIG_CMD_SAVEENV & CONFIG_CMD_FLASH
#endif
-#if defined(CONFIG_ENV_SIZE_REDUND) && (CONFIG_ENV_SIZE_REDUND < CONFIG_ENV_SIZE)
+#if defined(CONFIG_ENV_SIZE_REDUND) && \
+ (CONFIG_ENV_SIZE_REDUND < CONFIG_ENV_SIZE)
#error CONFIG_ENV_SIZE_REDUND should not be less then CONFIG_ENV_SIZE
#endif
-char * env_name_spec = "Flash";
+char *env_name_spec = "Flash";
#ifdef ENV_IS_EMBEDDED
env_t *env_ptr = &environment;
@@ -57,7 +58,6 @@ static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR;
env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR;
-
#endif /* ENV_IS_EMBEDDED */
#if defined(CMD_SAVEENV) || defined(CONFIG_ENV_ADDR_REDUND)
@@ -75,12 +75,11 @@ static ulong end_addr_new = CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1;
uchar env_get_char_spec(int index)
{
- return (*((uchar *)(gd->env_addr + index)));
+ return *((uchar *)(gd->env_addr + index));
}
#ifdef CONFIG_ENV_ADDR_REDUND
-
-int env_init(void)
+int env_init(void)
{
int crc1_ok = 0, crc2_ok = 0;
@@ -91,33 +90,34 @@ int env_init(void)
ulong addr1 = (ulong)&(flash_addr->data);
ulong addr2 = (ulong)&(flash_addr_new->data);
- crc1_ok = (crc32(0, flash_addr->data, ENV_SIZE) == flash_addr->crc);
- crc2_ok = (crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc);
-
- if (crc1_ok && ! crc2_ok) {
- gd->env_addr = addr1;
- gd->env_valid = 1;
- } else if (! crc1_ok && crc2_ok) {
- gd->env_addr = addr2;
- gd->env_valid = 1;
- } else if (! crc1_ok && ! crc2_ok) {
- gd->env_addr = addr_default;
- gd->env_valid = 0;
+ crc1_ok = crc32(0, flash_addr->data, ENV_SIZE) == flash_addr->crc;
+ crc2_ok =
+ crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc;
+
+ if (crc1_ok && !crc2_ok) {
+ gd->env_addr = addr1;
+ gd->env_valid = 1;
+ } else if (!crc1_ok && crc2_ok) {
+ gd->env_addr = addr2;
+ gd->env_valid = 1;
+ } else if (!crc1_ok && !crc2_ok) {
+ gd->env_addr = addr_default;
+ gd->env_valid = 0;
} else if (flag1 == ACTIVE_FLAG && flag2 == OBSOLETE_FLAG) {
- gd->env_addr = addr1;
- gd->env_valid = 1;
+ gd->env_addr = addr1;
+ gd->env_valid = 1;
} else if (flag1 == OBSOLETE_FLAG && flag2 == ACTIVE_FLAG) {
- gd->env_addr = addr2;
- gd->env_valid = 1;
+ gd->env_addr = addr2;
+ gd->env_valid = 1;
} else if (flag1 == flag2) {
- gd->env_addr = addr1;
- gd->env_valid = 2;
+ gd->env_addr = addr1;
+ gd->env_valid = 2;
} else if (flag1 == 0xFF) {
- gd->env_addr = addr1;
- gd->env_valid = 2;
+ gd->env_addr = addr1;
+ gd->env_valid = 2;
} else if (flag2 == 0xFF) {
- gd->env_addr = addr2;
- gd->env_valid = 2;
+ gd->env_addr = addr2;
+ gd->env_valid = 2;
}
return 0;
@@ -128,27 +128,23 @@ int saveenv(void)
{
env_t env_new;
ssize_t len;
- char *saved_data = NULL;
- char *res;
- int rc = 1;
+ char *res, *saved_data = NULL;
char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG;
+ int rc = 1;
#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
ulong up_data = 0;
#endif
- debug("Protect off %08lX ... %08lX\n",
- (ulong)flash_addr, end_addr);
+ debug("Protect off %08lX ... %08lX\n", (ulong)flash_addr, end_addr);
- if (flash_sect_protect(0, (ulong)flash_addr, end_addr)) {
+ if (flash_sect_protect(0, (ulong)flash_addr, end_addr))
goto done;
- }
debug("Protect off %08lX ... %08lX\n",
(ulong)flash_addr_new, end_addr_new);
- if (flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new)) {
+ if (flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new))
goto done;
- }
res = (char *)&env_new.data;
len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
@@ -156,46 +152,46 @@ int saveenv(void)
error("Cannot export environment: errno = %d\n", errno);
goto done;
}
- env_new.crc = crc32(0, env_new.data, ENV_SIZE);
- env_new.flags = new_flag;
+ env_new.crc = crc32(0, env_new.data, ENV_SIZE);
+ env_new.flags = new_flag;
#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
- up_data = (end_addr_new + 1 - ((long)flash_addr_new + CONFIG_ENV_SIZE));
+ up_data = end_addr_new + 1 - ((long)flash_addr_new + CONFIG_ENV_SIZE);
debug("Data to save 0x%lX\n", up_data);
if (up_data) {
- if ((saved_data = malloc(up_data)) == NULL) {
+ saved_data = malloc(up_data);
+ if (saved_data == NULL) {
printf("Unable to save the rest of sector (%ld)\n",
up_data);
goto done;
}
memcpy(saved_data,
- (void *)((long)flash_addr_new + CONFIG_ENV_SIZE), up_data);
+ (void *)((long)flash_addr_new + CONFIG_ENV_SIZE),
+ up_data);
debug("Data (start 0x%lX, len 0x%lX) saved at 0x%p\n",
(long)flash_addr_new + CONFIG_ENV_SIZE,
up_data, saved_data);
}
#endif
puts("Erasing Flash...");
- debug(" %08lX ... %08lX ...",
- (ulong)flash_addr_new, end_addr_new);
+ debug(" %08lX ... %08lX ...", (ulong)flash_addr_new, end_addr_new);
- if (flash_sect_erase((ulong)flash_addr_new, end_addr_new)) {
+ if (flash_sect_erase((ulong)flash_addr_new, end_addr_new))
goto done;
- }
puts("Writing to Flash... ");
debug(" %08lX ... %08lX ...",
(ulong)&(flash_addr_new->data),
- sizeof(env_ptr->data)+(ulong)&(flash_addr_new->data));
- if ((rc = flash_write((char *)&env_new,
- (ulong)flash_addr_new,
- sizeof(env_new))) ||
- (rc = flash_write(&flag,
- (ulong)&(flash_addr->flags),
- sizeof(flash_addr->flags))) ) {
- flash_perror(rc);
- goto done;
- }
+ sizeof(env_ptr->data) + (ulong)&(flash_addr_new->data));
+ rc = flash_write((char *)&env_new, (ulong)flash_addr_new,
+ sizeof(env_new));
+ if (rc)
+ goto perror;
+
+ rc = flash_write(&flag, (ulong)&(flash_addr->flags),
+ sizeof(flash_addr->flags));
+ if (rc)
+ goto perror;
#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
if (up_data) { /* restore the rest of sector */
@@ -203,16 +199,14 @@ int saveenv(void)
(long)flash_addr_new + CONFIG_ENV_SIZE, up_data);
if (flash_write(saved_data,
(long)flash_addr_new + CONFIG_ENV_SIZE,
- up_data)) {
- flash_perror(rc);
- goto done;
- }
+ up_data))
+ goto perror;
}
#endif
puts("done\n");
{
- env_t * etmp = flash_addr;
+ env_t *etmp = flash_addr;
ulong ltmp = end_addr;
flash_addr = flash_addr_new;
@@ -223,12 +217,15 @@ int saveenv(void)
}
rc = 0;
+ goto done;
+perror:
+ flash_perror(rc);
done:
if (saved_data)
free(saved_data);
/* try to re-protect */
- (void) flash_sect_protect(1, (ulong)flash_addr, end_addr);
- (void) flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new);
+ flash_sect_protect(1, (ulong)flash_addr, end_addr);
+ flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new);
return rc;
}
@@ -236,35 +233,34 @@ done:
#else /* ! CONFIG_ENV_ADDR_REDUND */
-int env_init(void)
+int env_init(void)
{
if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
- gd->env_addr = (ulong)&(env_ptr->data);
- gd->env_valid = 1;
- return(0);
+ gd->env_addr = (ulong)&(env_ptr->data);
+ gd->env_valid = 1;
+ return 0;
}
- gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = 0;
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = 0;
return 0;
}
#ifdef CMD_SAVEENV
-
int saveenv(void)
{
env_t env_new;
ssize_t len;
int rc = 1;
- char *res;
- char *saved_data = NULL;
+ char *res, *saved_data = NULL;
#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
ulong up_data = 0;
- up_data = (end_addr + 1 - ((long)flash_addr + CONFIG_ENV_SIZE));
+ up_data = end_addr + 1 - ((long)flash_addr + CONFIG_ENV_SIZE);
debug("Data to save 0x%lx\n", up_data);
if (up_data) {
- if ((saved_data = malloc(up_data)) == NULL) {
+ saved_data = malloc(up_data);
+ if (saved_data == NULL) {
printf("Unable to save the rest of sector (%ld)\n",
up_data);
goto done;
@@ -278,8 +274,7 @@ int saveenv(void)
}
#endif /* CONFIG_ENV_SECT_SIZE */
- debug("Protect off %08lX ... %08lX\n",
- (ulong)flash_addr, end_addr);
+ debug("Protect off %08lX ... %08lX\n", (ulong)flash_addr, end_addr);
if (flash_sect_protect(0, (long)flash_addr, end_addr))
goto done;
@@ -298,32 +293,31 @@ int saveenv(void)
puts("Writing to Flash... ");
rc = flash_write((char *)&env_new, (long)flash_addr, CONFIG_ENV_SIZE);
- if (rc != 0) {
- flash_perror(rc);
- goto done;
- }
+ if (rc != 0)
+ goto perror;
+
#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE
if (up_data) { /* restore the rest of sector */
debug("Restoring the rest of data to 0x%lx len 0x%lx\n",
(ulong)flash_addr + CONFIG_ENV_SIZE, up_data);
if (flash_write(saved_data,
(long)flash_addr + CONFIG_ENV_SIZE,
- up_data)) {
- flash_perror(rc);
- goto done;
- }
+ up_data))
+ goto perror;
}
#endif
puts("done\n");
rc = 0;
+ goto done;
+perror:
+ flash_perror(rc);
done:
if (saved_data)
free(saved_data);
/* try to re-protect */
- (void) flash_sect_protect(1, (long)flash_addr, end_addr);
+ flash_sect_protect(1, (long)flash_addr, end_addr);
return rc;
}
-
#endif /* CMD_SAVEENV */
#endif /* CONFIG_ENV_ADDR_REDUND */
@@ -343,8 +337,7 @@ void env_relocate_spec(void)
}
if (flash_addr_new->flags != OBSOLETE_FLAG &&
- crc32(0, flash_addr_new->data, ENV_SIZE) ==
- flash_addr_new->crc) {
+ crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc) {
char flag = OBSOLETE_FLAG;
gd->env_valid = 2;
@@ -368,8 +361,8 @@ void env_relocate_spec(void)
}
if (gd->env_valid == 2)
- puts ("*** Warning - some problems detected "
- "reading environment; recovered successfully\n\n");
+ puts("*** Warning - some problems detected "
+ "reading environment; recovered successfully\n\n");
#endif /* CONFIG_ENV_ADDR_REDUND */
env_import((char *)flash_addr, 1);
generated by cgit v0.10.2 at 2024-11-10 11:36:23 (GMT)