+// SPDX-License-Identifier: GPL-2.0+
/*
* (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>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
-#include <environment.h>
+#include <env.h>
+#include <env_internal.h>
#include <linux/stddef.h>
#include <malloc.h>
#include <memalign.h>
#include <nand.h>
#include <search.h>
#include <errno.h>
+#include <u-boot/crc.h>
-#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_NAND)
+#if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_NAND) && \
+ !defined(CONFIG_SPL_BUILD)
#define CMD_SAVEENV
-#elif defined(CONFIG_ENV_OFFSET_REDUND)
+#elif defined(CONFIG_ENV_OFFSET_REDUND) && !defined(CONFIG_SPL_BUILD)
#error CONFIG_ENV_OFFSET_REDUND must have CONFIG_CMD_SAVEENV & CONFIG_CMD_NAND
#endif
-#if defined(CONFIG_ENV_SIZE_REDUND) && \
- (CONFIG_ENV_SIZE_REDUND != CONFIG_ENV_SIZE)
-#error CONFIG_ENV_SIZE_REDUND should be the same as CONFIG_ENV_SIZE
-#endif
-
#ifndef CONFIG_ENV_RANGE
#define CONFIG_ENV_RANGE CONFIG_ENV_SIZE
#endif
-char *env_name_spec = "NAND";
-
#if defined(ENV_IS_EMBEDDED)
-env_t *env_ptr = &environment;
+static env_t *env_ptr = &environment;
#elif defined(CONFIG_NAND_ENV_DST)
-env_t *env_ptr = (env_t *)CONFIG_NAND_ENV_DST;
-#else /* ! ENV_IS_EMBEDDED */
-env_t *env_ptr;
+static env_t *env_ptr = (env_t *)CONFIG_NAND_ENV_DST;
#endif /* ENV_IS_EMBEDDED */
DECLARE_GLOBAL_DATA_PTR;
* This way the SPL loads not only the U-Boot image from NAND but
* also the environment.
*/
-int env_init(void)
+static int env_nand_init(void)
{
#if defined(ENV_IS_EMBEDDED) || defined(CONFIG_NAND_ENV_DST)
int crc1_ok = 0, crc2_ok = 0;
if (!crc1_ok && !crc2_ok) {
gd->env_addr = 0;
- gd->env_valid = 0;
+ gd->env_valid = ENV_INVALID;
return 0;
} else if (crc1_ok && !crc2_ok) {
- gd->env_valid = 1;
+ gd->env_valid = ENV_VALID;
}
#ifdef CONFIG_ENV_OFFSET_REDUND
else if (!crc1_ok && crc2_ok) {
- gd->env_valid = 2;
+ gd->env_valid = ENV_REDUND;
} else {
/* both ok - check serial */
if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
- gd->env_valid = 2;
+ gd->env_valid = ENV_REDUND;
else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
- gd->env_valid = 1;
+ gd->env_valid = ENV_VALID;
else if (tmp_env1->flags > tmp_env2->flags)
- gd->env_valid = 1;
+ gd->env_valid = ENV_VALID;
else if (tmp_env2->flags > tmp_env1->flags)
- gd->env_valid = 2;
+ gd->env_valid = ENV_REDUND;
else /* flags are equal - almost impossible */
- gd->env_valid = 1;
+ gd->env_valid = ENV_VALID;
}
- if (gd->env_valid == 2)
+ if (gd->env_valid == ENV_REDUND)
env_ptr = tmp_env2;
else
#endif
- if (gd->env_valid == 1)
+ if (gd->env_valid == ENV_VALID)
env_ptr = tmp_env1;
gd->env_addr = (ulong)env_ptr->data;
#else /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = 1;
+ gd->env_valid = ENV_VALID;
#endif /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
return 0;
return 0;
}
-struct env_location {
+struct nand_env_location {
const char *name;
const nand_erase_options_t erase_opts;
};
-static int erase_and_write_env(const struct env_location *location,
+static int erase_and_write_env(const struct nand_env_location *location,
u_char *env_new)
{
struct mtd_info *mtd;
return ret;
}
-int saveenv(void)
+static int env_nand_save(void)
{
int ret = 0;
ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
int env_idx = 0;
- static const struct env_location location[] = {
+ static const struct nand_env_location location[] = {
{
.name = "NAND",
.erase_opts = {
return ret;
#ifdef CONFIG_ENV_OFFSET_REDUND
- env_idx = (gd->env_valid == 1);
+ env_idx = (gd->env_valid == ENV_VALID);
#endif
ret = erase_and_write_env(&location[env_idx], (u_char *)env_new);
#ifdef CONFIG_ENV_OFFSET_REDUND
if (!ret) {
/* preset other copy for next write */
- gd->env_valid = gd->env_valid == 2 ? 1 : 2;
+ gd->env_valid = gd->env_valid == ENV_REDUND ? ENV_VALID :
+ ENV_REDUND;
return ret;
}
}
if (oob_buf[0] == ENV_OOB_MARKER) {
- *result = oob_buf[1] * mtd->erasesize;
+ *result = ovoid ob_buf[1] * mtd->erasesize;
} else if (oob_buf[0] == ENV_OOB_MARKER_OLD) {
*result = oob_buf[1];
} else {
#endif
#ifdef CONFIG_ENV_OFFSET_REDUND
-void env_relocate_spec(void)
+static int env_nand_load(void)
{
-#if !defined(ENV_IS_EMBEDDED)
- int read1_fail = 0, read2_fail = 0;
+#if defined(ENV_IS_EMBEDDED)
+ return 0;
+#else
+ int read1_fail, read2_fail;
env_t *tmp_env1, *tmp_env2;
+ int ret = 0;
tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE);
tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE);
if (tmp_env1 == NULL || tmp_env2 == NULL) {
puts("Can't allocate buffers for environment\n");
- set_default_env("!malloc() failed");
+ env_set_default("malloc() failed", 0);
+ ret = -EIO;
goto done;
}
read1_fail = readenv(CONFIG_ENV_OFFSET, (u_char *) tmp_env1);
read2_fail = readenv(CONFIG_ENV_OFFSET_REDUND, (u_char *) tmp_env2);
- if (read1_fail && read2_fail)
- puts("*** Error - No Valid Environment Area found\n");
- else if (read1_fail || read2_fail)
- puts("*** Warning - some problems detected "
- "reading environment; recovered successfully\n");
-
- if (read1_fail && read2_fail) {
- set_default_env("!bad env area");
- goto done;
- } else if (!read1_fail && read2_fail) {
- gd->env_valid = 1;
- env_import((char *)tmp_env1, 1);
- } else if (read1_fail && !read2_fail) {
- gd->env_valid = 2;
- env_import((char *)tmp_env2, 1);
- } else {
- env_import_redund((char *)tmp_env1, (char *)tmp_env2);
- }
+ ret = env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
+ read2_fail);
done:
free(tmp_env1);
free(tmp_env2);
+ return ret;
#endif /* ! ENV_IS_EMBEDDED */
}
#else /* ! CONFIG_ENV_OFFSET_REDUND */
* device i.e., nand_dev_desc + 0. This is also the behaviour using
* the new NAND code.
*/
-void env_relocate_spec(void)
+static int env_nand_load(void)
{
#if !defined(ENV_IS_EMBEDDED)
int ret;
if (mtd && !get_nand_env_oob(mtd, &nand_env_oob_offset)) {
printf("Found Environment offset in OOB..\n");
} else {
- set_default_env("!no env offset in OOB");
+ env_set_default("no env offset in OOB", 0);
return;
}
#endif
ret = readenv(CONFIG_ENV_OFFSET, (u_char *)buf);
if (ret) {
- set_default_env("!readenv() failed");
- return;
+ env_set_default("readenv() failed", 0);
+ return -EIO;
}
- env_import(buf, 1);
+ return env_import(buf, 1);
#endif /* ! ENV_IS_EMBEDDED */
+
+ return 0;
}
#endif /* CONFIG_ENV_OFFSET_REDUND */
+
+U_BOOT_ENV_LOCATION(nand) = {
+ .location = ENVL_NAND,
+ ENV_NAME("NAND")
+ .load = env_nand_load,
+#if defined(CMD_SAVEENV)
+ .save = env_save_ptr(env_nand_save),
+#endif
+ .init = env_nand_init,
+};
projects / oweals / u-boot.git / blobdiff