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-rw-r--r--roms/u-boot/env/remote.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/roms/u-boot/env/remote.c b/roms/u-boot/env/remote.c
new file mode 100644
index 000000000..166bebf52
--- /dev/null
+++ b/roms/u-boot/env/remote.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2011-2012 Freescale Semiconductor, Inc.
+ */
+
+/* #define DEBUG */
+
+#include <common.h>
+#include <command.h>
+#include <env_internal.h>
+#include <asm/global_data.h>
+#include <linux/stddef.h>
+#include <u-boot/crc.h>
+
+#ifdef ENV_IS_EMBEDDED
+static env_t *env_ptr = &environment;
+#else /* ! ENV_IS_EMBEDDED */
+static env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
+#endif /* ENV_IS_EMBEDDED */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int env_remote_init(void)
+{
+ if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
+ gd->env_addr = (ulong)&(env_ptr->data);
+ gd->env_valid = ENV_VALID;
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+#ifdef CONFIG_CMD_SAVEENV
+static int env_remote_save(void)
+{
+#ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE
+ printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n");
+ return 1;
+#else
+ return 0;
+#endif
+}
+#endif /* CONFIG_CMD_SAVEENV */
+
+static int env_remote_load(void)
+{
+#ifndef ENV_IS_EMBEDDED
+ return env_import((char *)env_ptr, 1, H_EXTERNAL);
+#endif
+
+ return 0;
+}
+
+U_BOOT_ENV_LOCATION(remote) = {
+ .location = ENVL_REMOTE,
+ ENV_NAME("Remote")
+ .load = env_remote_load,
+ .save = env_save_ptr(env_remote_save),
+ .init = env_remote_init,
+};