*/
#include <common.h>
-#include <environment.h>
+#include <env.h>
+#include <env_internal.h>
DECLARE_GLOBAL_DATA_PTR;
entry->load += gd->reloc_off;
if (entry->save)
entry->save += gd->reloc_off;
+ if (entry->erase)
+ entry->erase += gd->reloc_off;
if (entry->init)
entry->init += gd->reloc_off;
}
#ifdef CONFIG_ENV_IS_IN_REMOTE
ENVL_REMOTE,
#endif
+#ifdef CONFIG_ENV_IS_IN_SATA
+ ENVL_ESATA,
+#endif
#ifdef CONFIG_ENV_IS_IN_SPI_FLASH
ENVL_SPI_FLASH,
#endif
int env_load(void)
{
struct env_driver *drv;
+ int best_prio = -1;
int prio;
for (prio = 0; (drv = env_driver_lookup(ENVOP_LOAD, prio)); prio++) {
* one message.
*/
ret = drv->load();
- if (ret) {
- debug("Failed (%d)\n", ret);
- } else {
+ if (!ret) {
printf("OK\n");
return 0;
+ } else if (ret == -ENOMSG) {
+ /* Handle "bad CRC" case */
+ if (best_prio == -1)
+ best_prio = prio;
+ } else {
+ debug("Failed (%d)\n", ret);
}
}
/*
* In case of invalid environment, we set the 'default' env location
- * to the highest priority. In this way, next calls to env_save()
- * will restore the environment at the right place.
+ * to the best choice, i.e.:
+ * 1. Environment location with bad CRC, if such location was found
+ * 2. Otherwise use the location with highest priority
+ *
+ * This way, next calls to env_save() will restore the environment
+ * at the right place.
*/
- env_get_location(ENVOP_LOAD, 0);
+ if (best_prio >= 0)
+ debug("Selecting environment with bad CRC\n");
+ else
+ best_prio = 0;
+ env_get_location(ENVOP_LOAD, best_prio);
return -ENODEV;
}
return -ENODEV;
}
+int env_erase(void)
+{
+ struct env_driver *drv;
+
+ drv = env_driver_lookup(ENVOP_ERASE, gd->env_load_prio);
+ if (drv) {
+ int ret;
+
+ if (!drv->erase)
+ return -ENODEV;
+
+ if (!env_has_inited(drv->location))
+ return -ENODEV;
+
+ printf("Erasing Environment on %s... ", drv->name);
+ ret = drv->erase();
+ if (ret)
+ printf("Failed (%d)\n", ret);
+ else
+ printf("OK\n");
+
+ if (!ret)
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
int env_init(void)
{
struct env_driver *drv;