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authorNandor Han2021-06-10 16:56:43 +0300
committerTom Rini2021-07-23 10:16:39 -0400
commit2541ce2c1af87f74a9feb35a1cbfc20ff8d04e4b (patch)
tree916abd832f987163a13630c9442fc3857f9aeb8f /include/reboot-mode
parentf534d93cbf34f1d1762b04eb5680e84bef5e1fe1 (diff)
reboot-mode: add support for reboot mode control
A new driver uclass is created to handle the reboot mode control. The new uclass driver is updating an environment variable with the configured reboot mode. The mode is extracted from a map provided at initialization time. The map contains a list of modes and associated ids. Signed-off-by: Nandor Han <nandor.han@vaisala.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/reboot-mode')
-rw-r--r--include/reboot-mode/reboot-mode.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/reboot-mode/reboot-mode.h b/include/reboot-mode/reboot-mode.h
new file mode 100644
index 00000000000..86b51f881ca
--- /dev/null
+++ b/include/reboot-mode/reboot-mode.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c), Vaisala Oyj
+ */
+
+#ifndef REBOOT_MODE_REBOOT_MODE_H__
+#define REBOOT_MODE_REBOOT_MODE_H__
+
+#include <asm/types.h>
+#include <dm/device.h>
+
+struct reboot_mode_mode {
+ const char *mode_name;
+ u32 mode_id;
+};
+
+struct reboot_mode_uclass_platdata {
+ struct reboot_mode_mode *modes;
+ u8 count;
+ const char *env_variable;
+};
+
+struct reboot_mode_ops {
+ /**
+ * get() - get the current reboot mode value
+ *
+ * Returns the current value from the reboot mode backing store.
+ *
+ * @dev: Device to read from
+ * @rebootmode: Address to save the current reboot mode value
+ */
+ int (*get)(struct udevice *dev, u32 *rebootmode);
+
+ /**
+ * set() - set a reboot mode value
+ *
+ * Sets the value in the reboot mode backing store.
+ *
+ * @dev: Device to read from
+ * @rebootmode: New reboot mode value to store
+ */
+ int (*set)(struct udevice *dev, u32 rebootmode);
+};
+
+/* Access the operations for a reboot mode device */
+#define reboot_mode_get_ops(dev) ((struct reboot_mode_ops *)(dev)->driver->ops)
+
+/**
+ * dm_reboot_mode_update() - Update the reboot mode env variable.
+ *
+ * @dev: Device to read from
+ * @return 0 if OK, -ve on error
+ */
+int dm_reboot_mode_update(struct udevice *dev);
+
+#endif /* REBOOT_MODE_REBOOT_MODE_H__ */