+// SPDX-License-Identifier: GPL-2.0+
/*
* (c) Copyright 2011 by Tigris Elektronik GmbH
*
* Author:
* Maximilian Schwerin <mvs@tigris.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
-
#include <command.h>
-#include <environment.h>
-#include <linux/stddef.h>
+#include <env.h>
+#include <env_internal.h>
+#include <part.h>
#include <malloc.h>
#include <memalign.h>
#include <search.h>
#include <errno.h>
#include <fat.h>
#include <mmc.h>
+#include <asm/cache.h>
+#include <asm/global_data.h>
+#include <linux/stddef.h>
#ifdef CONFIG_SPL_BUILD
/* TODO(sjg@chromium.org): Figure out why this is needed */
# endif
#else
# define LOADENV
-# if defined(CONFIG_CMD_SAVEENV)
-# define CMD_SAVEENV
-# endif
#endif
-char *env_name_spec = "FAT";
-
-env_t *env_ptr;
-
DECLARE_GLOBAL_DATA_PTR;
-int env_init(void)
+static char *env_fat_device_and_part(void)
{
- /* use default */
- gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = ENV_VALID;
+#ifdef CONFIG_MMC
+ static char *part_str;
+
+ if (!part_str) {
+ part_str = CONFIG_ENV_FAT_DEVICE_AND_PART;
+ if (!strcmp(CONFIG_ENV_FAT_INTERFACE, "mmc") && part_str[0] == ':') {
+ part_str = "0" CONFIG_ENV_FAT_DEVICE_AND_PART;
+ part_str[0] += mmc_get_env_dev();
+ }
+ }
- return 0;
+ return part_str;
+#else
+ return CONFIG_ENV_FAT_DEVICE_AND_PART;
+#endif
}
-#ifdef CMD_SAVEENV
-int saveenv(void)
+static int env_fat_save(void)
{
- env_t env_new;
+ env_t __aligned(ARCH_DMA_MINALIGN) env_new;
struct blk_desc *dev_desc = NULL;
- disk_partition_t info;
+ struct disk_partition info;
+ const char *file = CONFIG_ENV_FAT_FILE;
int dev, part;
int err;
loff_t size;
return err;
part = blk_get_device_part_str(CONFIG_ENV_FAT_INTERFACE,
- CONFIG_ENV_FAT_DEVICE_AND_PART,
+ env_fat_device_and_part(),
&dev_desc, &info, 1);
if (part < 0)
return 1;
dev = dev_desc->devnum;
if (fat_set_blk_dev(dev_desc, &info) != 0) {
- printf("\n** Unable to use %s %d:%d for saveenv **\n",
+ /*
+ * This printf is embedded in the messages from env_save that
+ * will calling it. The missing \n is intentional.
+ */
+ printf("Unable to use %s %d:%d... ",
CONFIG_ENV_FAT_INTERFACE, dev, part);
return 1;
}
- err = file_fat_write(CONFIG_ENV_FAT_FILE, (void *)&env_new, 0, sizeof(env_t),
- &size);
+#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
+ if (gd->env_valid == ENV_VALID)
+ file = CONFIG_ENV_FAT_FILE_REDUND;
+#endif
+
+ err = file_fat_write(file, (void *)&env_new, 0, sizeof(env_t), &size);
if (err == -1) {
- printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
- CONFIG_ENV_FAT_FILE, CONFIG_ENV_FAT_INTERFACE, dev, part);
+ /*
+ * This printf is embedded in the messages from env_save that
+ * will calling it. The missing \n is intentional.
+ */
+ printf("Unable to write \"%s\" from %s%d:%d... ",
+ file, CONFIG_ENV_FAT_INTERFACE, dev, part);
return 1;
}
- puts("done\n");
+#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
+ gd->env_valid = (gd->env_valid == ENV_REDUND) ? ENV_VALID : ENV_REDUND;
+#endif
+
return 0;
}
-#endif /* CMD_SAVEENV */
#ifdef LOADENV
-void env_relocate_spec(void)
+static int env_fat_load(void)
{
- ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
+ ALLOC_CACHE_ALIGN_BUFFER(char, buf1, CONFIG_ENV_SIZE);
+#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
+ ALLOC_CACHE_ALIGN_BUFFER(char, buf2, CONFIG_ENV_SIZE);
+ int err2;
+#endif
struct blk_desc *dev_desc = NULL;
- disk_partition_t info;
+ struct disk_partition info;
int dev, part;
- int err;
+ int err1;
+
+#ifdef CONFIG_MMC
+ if (!strcmp(CONFIG_ENV_FAT_INTERFACE, "mmc"))
+ mmc_initialize(NULL);
+#endif
part = blk_get_device_part_str(CONFIG_ENV_FAT_INTERFACE,
- CONFIG_ENV_FAT_DEVICE_AND_PART,
+ env_fat_device_and_part(),
&dev_desc, &info, 1);
if (part < 0)
goto err_env_relocate;
dev = dev_desc->devnum;
if (fat_set_blk_dev(dev_desc, &info) != 0) {
- printf("\n** Unable to use %s %d:%d for loading the env **\n",
+ /*
+ * This printf is embedded in the messages from env_save that
+ * will calling it. The missing \n is intentional.
+ */
+ printf("Unable to use %s %d:%d... ",
CONFIG_ENV_FAT_INTERFACE, dev, part);
goto err_env_relocate;
}
- err = file_fat_read(CONFIG_ENV_FAT_FILE, buf, CONFIG_ENV_SIZE);
- if (err == -1) {
- printf("\n** Unable to read \"%s\" from %s%d:%d **\n",
+ err1 = file_fat_read(CONFIG_ENV_FAT_FILE, buf1, CONFIG_ENV_SIZE);
+#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
+ err2 = file_fat_read(CONFIG_ENV_FAT_FILE_REDUND, buf2, CONFIG_ENV_SIZE);
+
+ err1 = (err1 >= 0) ? 0 : -1;
+ err2 = (err2 >= 0) ? 0 : -1;
+ return env_import_redund(buf1, err1, buf2, err2, H_EXTERNAL);
+#else
+ if (err1 < 0) {
+ /*
+ * This printf is embedded in the messages from env_save that
+ * will calling it. The missing \n is intentional.
+ */
+ printf("Unable to read \"%s\" from %s%d:%d... ",
CONFIG_ENV_FAT_FILE, CONFIG_ENV_FAT_INTERFACE, dev, part);
goto err_env_relocate;
}
- env_import(buf, 1);
- return;
+ return env_import(buf1, 1, H_EXTERNAL);
+#endif
err_env_relocate:
- set_default_env(NULL);
+ env_set_default(NULL, 0);
+
+ return -EIO;
}
#endif /* LOADENV */
U_BOOT_ENV_LOCATION(fat) = {
.location = ENVL_FAT,
- .get_char = env_get_char_spec,
+ ENV_NAME("FAT")
#ifdef LOADENV
- .load = env_relocate_spec,
-#endif
-#ifdef CMD_SAVEENV
- .save = env_save_ptr(saveenv),
+ .load = env_fat_load,
#endif
- .init = env_init,
+ .save = ENV_SAVE_PTR(env_fat_save),
};