+// 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 <env.h>
+#include <env_internal.h>
#include <linux/stddef.h>
#include <malloc.h>
#include <memalign.h>
#include <fat.h>
#include <mmc.h>
-char *env_name_spec = "FAT";
-
-env_t *env_ptr;
-
-DECLARE_GLOBAL_DATA_PTR;
-
-int env_init(void)
-{
- /* use default */
- gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = 1;
-
- return 0;
-}
+#ifdef CONFIG_SPL_BUILD
+/* TODO(sjg@chromium.org): Figure out why this is needed */
+# if !defined(CONFIG_TARGET_AM335X_EVM) || defined(CONFIG_SPL_OS_BOOT)
+# define LOADENV
+# endif
+#else
+# define LOADENV
+#endif
-#ifdef CONFIG_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;
int dev, part;
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);
if (err == -1) {
- printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
+ /*
+ * 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... ",
CONFIG_ENV_FAT_FILE, CONFIG_ENV_FAT_INTERFACE, dev, part);
return 1;
}
- puts("done\n");
return 0;
}
-#endif /* CONFIG_CMD_SAVEENV */
-void env_relocate_spec(void)
+#ifdef LOADENV
+static int env_fat_load(void)
{
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
struct blk_desc *dev_desc = NULL;
int dev, part;
int err;
+#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,
&dev_desc, &info, 1);
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",
+ /*
+ * 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(buf, 1);
err_env_relocate:
- set_default_env(NULL);
+ env_set_default(NULL, 0);
+
+ return -EIO;
}
+#endif /* LOADENV */
+
+U_BOOT_ENV_LOCATION(fat) = {
+ .location = ENVL_FAT,
+ ENV_NAME("FAT")
+#ifdef LOADENV
+ .load = env_fat_load,
+#endif
+ .save = ENV_SAVE_PTR(env_fat_save),
+};