/*
- * (C) Copyright 2000-2002
+ * (C) Copyright 2000-2010
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Andreas Heppel <aheppel@sysgo.de>
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/* #define DEBUG */
#include <common.h>
-
-#if defined(CFG_ENV_IS_IN_FLASH) /* Environment is in Flash */
-
#include <command.h>
#include <environment.h>
#include <linux/stddef.h>
#include <malloc.h>
+#include <search.h>
+#include <errno.h>
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_CMD_ENV) && defined(CONFIG_CMD_FLASH)
+#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_FLASH)
#define CMD_SAVEENV
-#elif defined(CFG_ENV_ADDR_REDUND)
-#error Cannot use CFG_ENV_ADDR_REDUND without CONFIG_CMD_ENV & CONFIG_CMD_FLASH
-#endif
-
-#if defined(CFG_ENV_SIZE_REDUND) && (CFG_ENV_SIZE_REDUND < CFG_ENV_SIZE)
-#error CFG_ENV_SIZE_REDUND should not be less then CFG_ENV_SIZE
+#elif defined(CONFIG_ENV_ADDR_REDUND)
+#error CONFIG_ENV_ADDR_REDUND must have CONFIG_CMD_SAVEENV & CONFIG_CMD_FLASH
#endif
-#ifdef CONFIG_INFERNO
-# ifdef CFG_ENV_ADDR_REDUND
-#error CFG_ENV_ADDR_REDUND is not implemented for CONFIG_INFERNO
-# endif
+#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;
-extern uchar environment[];
-env_t *env_ptr = (env_t *)(&environment[0]);
-
-#ifdef CMD_SAVEENV
-/* static env_t *flash_addr = (env_t *)(&environment[0]);-broken on ARM-wd-*/
-static env_t *flash_addr = (env_t *)CFG_ENV_ADDR;
-#endif
+static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR;
#else /* ! ENV_IS_EMBEDDED */
-env_t *env_ptr = (env_t *)CFG_ENV_ADDR;
-#ifdef CMD_SAVEENV
-static env_t *flash_addr = (env_t *)CFG_ENV_ADDR;
-#endif
-
+env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
+static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR;
#endif /* ENV_IS_EMBEDDED */
-#ifdef CFG_ENV_ADDR_REDUND
-static env_t *flash_addr_new = (env_t *)CFG_ENV_ADDR_REDUND;
-
-/* CFG_ENV_ADDR is supposed to be on sector boundary */
-static ulong end_addr = CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1;
-static ulong end_addr_new = CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1;
+#if defined(CMD_SAVEENV) || defined(CONFIG_ENV_ADDR_REDUND)
+/* CONFIG_ENV_ADDR is supposed to be on sector boundary */
+static ulong end_addr = CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1;
+#endif
-#define ACTIVE_FLAG 1
-#define OBSOLETE_FLAG 0
-#endif /* CFG_ENV_ADDR_REDUND */
+#ifdef CONFIG_ENV_ADDR_REDUND
+static env_t *flash_addr_new = (env_t *)CONFIG_ENV_ADDR_REDUND;
-extern uchar default_environment[];
-extern int default_environment_size;
+/* CONFIG_ENV_ADDR_REDUND is supposed to be on sector boundary */
+static ulong end_addr_new = CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1;
+#endif /* CONFIG_ENV_ADDR_REDUND */
-uchar env_get_char_spec (int index)
-{
- return ( *((uchar *)(gd->env_addr + index)) );
-}
-
-#ifdef CFG_ENV_ADDR_REDUND
-
-int env_init(void)
+#ifdef CONFIG_ENV_ADDR_REDUND
+int env_init(void)
{
int crc1_ok = 0, crc2_ok = 0;
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);
+ return 0;
}
#ifdef CMD_SAVEENV
int saveenv(void)
{
- char *saved_data = NULL;
- int rc = 1;
- char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG;
-#if CFG_ENV_SECT_SIZE > CFG_ENV_SIZE
- ulong up_data = 0;
+ env_t env_new;
+ char *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)) {
- goto Done;
- }
+ if (flash_sect_protect(0, (ulong)flash_addr, end_addr))
+ goto done;
- debug ("Protect off %08lX ... %08lX\n",
+ 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)) {
- goto Done;
- }
+ if (flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new))
+ goto done;
+
+ rc = env_export(&env_new);
+ if (rc)
+ return rc;
+ env_new.flags = new_flag;
-#if CFG_ENV_SECT_SIZE > CFG_ENV_SIZE
- up_data = (end_addr_new + 1 - ((long)flash_addr_new + CFG_ENV_SIZE));
- debug ("Data to save 0x%x\n", up_data);
+#if CONFIG_ENV_SECT_SIZE > 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;
+ goto done;
}
memcpy(saved_data,
- (void *)((long)flash_addr_new + CFG_ENV_SIZE), up_data);
- debug ("Data (start 0x%x, len 0x%x) saved at 0x%x\n",
- (long)flash_addr_new + CFG_ENV_SIZE,
- up_data, saved_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);
+ puts("Erasing Flash...");
+ debug(" %08lX ... %08lX ...", (ulong)flash_addr_new, end_addr_new);
- if (flash_sect_erase ((ulong)flash_addr_new, end_addr_new)) {
- goto Done;
- }
+ if (flash_sect_erase((ulong)flash_addr_new, end_addr_new))
+ goto done;
- puts ("Writing to Flash... ");
- debug (" %08lX ... %08lX ...",
+ 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_ptr->data,
- (ulong)&(flash_addr_new->data),
- sizeof(env_ptr->data))) ||
- (rc = flash_write((char *)&(env_ptr->crc),
- (ulong)&(flash_addr_new->crc),
- sizeof(env_ptr->crc))) ||
- (rc = flash_write(&flag,
- (ulong)&(flash_addr->flags),
- sizeof(flash_addr->flags))) ||
- (rc = flash_write(&new_flag,
- (ulong)&(flash_addr_new->flags),
- sizeof(flash_addr_new->flags))))
- {
- flash_perror (rc);
- goto Done;
- }
- puts ("done\n");
-
-#if CFG_ENV_SECT_SIZE > CFG_ENV_SIZE
+ 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 */
- debug ("Restoring the rest of data to 0x%x len 0x%x\n",
- (long)flash_addr_new + CFG_ENV_SIZE, up_data);
+ debug("Restoring the rest of data to 0x%lX len 0x%lX\n",
+ (long)flash_addr_new + CONFIG_ENV_SIZE, up_data);
if (flash_write(saved_data,
- (long)flash_addr_new + CFG_ENV_SIZE,
- up_data)) {
- flash_perror(rc);
- goto Done;
- }
+ (long)flash_addr_new + CONFIG_ENV_SIZE,
+ 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;
}
rc = 0;
-Done:
-
+ goto done;
+perror:
+ flash_perror(rc);
+done:
if (saved_data)
- free (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;
}
#endif /* CMD_SAVEENV */
-#else /* ! CFG_ENV_ADDR_REDUND */
+#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;
- return (0);
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = 0;
+ return 0;
}
#ifdef CMD_SAVEENV
-
int saveenv(void)
{
- int len, rc;
- ulong end_addr;
- ulong flash_sect_addr;
-#if defined(CFG_ENV_SECT_SIZE) && (CFG_ENV_SECT_SIZE > CFG_ENV_SIZE)
- ulong flash_offset;
- uchar env_buffer[CFG_ENV_SECT_SIZE];
-#else
- uchar *env_buffer = (uchar *)env_ptr;
-#endif /* CFG_ENV_SECT_SIZE */
- int rcode = 0;
-
-#if defined(CFG_ENV_SECT_SIZE) && (CFG_ENV_SECT_SIZE > CFG_ENV_SIZE)
-
- flash_offset = ((ulong)flash_addr) & (CFG_ENV_SECT_SIZE-1);
- flash_sect_addr = ((ulong)flash_addr) & ~(CFG_ENV_SECT_SIZE-1);
-
- debug ( "copy old content: "
- "sect_addr: %08lX env_addr: %08lX offset: %08lX\n",
- flash_sect_addr, (ulong)flash_addr, flash_offset);
-
- /* copy old contents to temporary buffer */
- memcpy (env_buffer, (void *)flash_sect_addr, CFG_ENV_SECT_SIZE);
-
- /* copy current environment to temporary buffer */
- memcpy ((uchar *)((unsigned long)env_buffer + flash_offset),
- env_ptr,
- CFG_ENV_SIZE);
-
- len = CFG_ENV_SECT_SIZE;
-#else
- flash_sect_addr = (ulong)flash_addr;
- len = CFG_ENV_SIZE;
-#endif /* CFG_ENV_SECT_SIZE */
-
-#ifndef CONFIG_INFERNO
- end_addr = flash_sect_addr + len - 1;
-#else
- /* this is the last sector, and the size is hardcoded here */
- /* otherwise we will get stack problems on loading 128 KB environment */
- end_addr = flash_sect_addr + 0x20000 - 1;
-#endif
+ env_t env_new;
+ int rc = 1;
+ char *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);
+ debug("Data to save 0x%lx\n", up_data);
+ if (up_data) {
+ 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 + CONFIG_ENV_SIZE), up_data);
+ debug("Data (start 0x%lx, len 0x%lx) saved at 0x%lx\n",
+ (ulong)flash_addr + CONFIG_ENV_SIZE,
+ up_data,
+ (ulong)saved_data);
+ }
+#endif /* CONFIG_ENV_SECT_SIZE */
- debug ("Protect off %08lX ... %08lX\n",
- (ulong)flash_sect_addr, end_addr);
+ debug("Protect off %08lX ... %08lX\n", (ulong)flash_addr, end_addr);
- if (flash_sect_protect (0, flash_sect_addr, end_addr))
- return 1;
+ if (flash_sect_protect(0, (long)flash_addr, end_addr))
+ goto done;
- puts ("Erasing Flash...");
- if (flash_sect_erase (flash_sect_addr, end_addr))
- return 1;
+ rc = env_export(&env_new);
+ if (rc)
+ goto done;
- puts ("Writing to Flash... ");
- rc = flash_write((char *)env_buffer, flash_sect_addr, len);
- if (rc != 0) {
- flash_perror (rc);
- rcode = 1;
- } else {
- puts ("done\n");
- }
+ puts("Erasing Flash...");
+ if (flash_sect_erase((long)flash_addr, end_addr))
+ goto done;
+
+ puts("Writing to Flash... ");
+ rc = flash_write((char *)&env_new, (long)flash_addr, CONFIG_ENV_SIZE);
+ 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))
+ 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, flash_sect_addr, end_addr);
- return rcode;
+ flash_sect_protect(1, (long)flash_addr, end_addr);
+ return rc;
}
-
#endif /* CMD_SAVEENV */
-#endif /* CFG_ENV_ADDR_REDUND */
+#endif /* CONFIG_ENV_ADDR_REDUND */
-void env_relocate_spec (void)
+void env_relocate_spec(void)
{
-#if !defined(ENV_IS_EMBEDDED) || defined(CFG_ENV_ADDR_REDUND)
-#ifdef CFG_ENV_ADDR_REDUND
+#ifdef CONFIG_ENV_ADDR_REDUND
if (gd->env_addr != (ulong)&(flash_addr->data)) {
- env_t * etmp = flash_addr;
+ env_t *etmp = flash_addr;
ulong ltmp = end_addr;
flash_addr = flash_addr_new;
}
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;
- flash_sect_protect (0, (ulong)flash_addr_new, end_addr_new);
+ flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new);
flash_write(&flag,
(ulong)&(flash_addr_new->flags),
sizeof(flash_addr_new->flags));
- flash_sect_protect (1, (ulong)flash_addr_new, end_addr_new);
+ flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new);
}
if (flash_addr->flags != ACTIVE_FLAG &&
char flag = ACTIVE_FLAG;
gd->env_valid = 2;
- flash_sect_protect (0, (ulong)flash_addr, end_addr);
+ flash_sect_protect(0, (ulong)flash_addr, end_addr);
flash_write(&flag,
(ulong)&(flash_addr->flags),
sizeof(flash_addr->flags));
- flash_sect_protect (1, (ulong)flash_addr, end_addr);
+ flash_sect_protect(1, (ulong)flash_addr, end_addr);
}
if (gd->env_valid == 2)
- puts ("*** Warning - some problems detected "
- "reading environment; recovered successfully\n\n");
-#endif /* CFG_ENV_ADDR_REDUND */
- memcpy (env_ptr, (void*)flash_addr, CFG_ENV_SIZE);
-#endif /* ! ENV_IS_EMBEDDED || CFG_ENV_ADDR_REDUND */
-}
+ puts("*** Warning - some problems detected "
+ "reading environment; recovered successfully\n\n");
+#endif /* CONFIG_ENV_ADDR_REDUND */
-#endif /* CFG_ENV_IS_IN_FLASH */
+ env_import((char *)flash_addr, 1);
+}
projects / karo-tx-uboot.git / blobdiff