1 files changed, 133 insertions, 0 deletions
diff --git a/include/dm/root.h b/include/dm/root.h
new file mode 100644
index 0000000..c8d629b
--- /dev/null
+++ b/include/dm/root.h
@@ -0,0 +1,133 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * (C) Copyright 2012
+ * Pavel Herrmann <morpheus.ibis@gmail.com>
+ */
+
+#ifndef _DM_ROOT_H_
+#define _DM_ROOT_H_
+
+struct udevice;
+
+/**
+ * dm_root() - Return pointer to the top of the driver tree
+ *
+ * This function returns pointer to the root node of the driver tree,
+ *
+ * @return pointer to root device, or NULL if not inited yet
+ */
+struct udevice *dm_root(void);
+
+struct global_data;
+/**
+ * dm_fixup_for_gd_move() - Handle global_data moving to a new place
+ *
+ * The uclass list is part of global_data. Due to the way lists work, moving
+ * the list will cause it to become invalid. This function fixes that up so
+ * that the uclass list will work correctly.
+ */
+void dm_fixup_for_gd_move(struct global_data *new_gd);
+
+/**
+ * dm_scan_platdata() - Scan all platform data and bind drivers
+ *
+ * This scans all available platdata and creates drivers for each
+ *
+ * @pre_reloc_only: If true, bind only drivers with the DM_FLAG_PRE_RELOC
+ * flag. If false bind all drivers.
+ * @return 0 if OK, -ve on error
+ */
+int dm_scan_platdata(bool pre_reloc_only);
+
+/**
+ * dm_scan_fdt() - Scan the device tree and bind drivers
+ *
+ * This scans the device tree and creates a driver for each node. Only
+ * the top-level subnodes are examined.
+ *
+ * @blob: Pointer to device tree blob
+ * @pre_reloc_only: If true, bind only nodes with special devicetree properties,
+ * or drivers with the DM_FLAG_PRE_RELOC flag. If false bind all drivers.
+ * @return 0 if OK, -ve on error
+ */
+int dm_scan_fdt(const void *blob, bool pre_reloc_only);
+
+/**
+ * dm_extended_scan_fdt() - Scan the device tree and bind drivers
+ *
+ * This calls dm_scna_dft() which scans the device tree and creates a driver
+ * for each node. the top-level subnodes are examined and also all sub-nodes
+ * of "clocks" node.
+ *
+ * @blob: Pointer to device tree blob
+ * @pre_reloc_only: If true, bind only nodes with special devicetree properties,
+ * or drivers with the DM_FLAG_PRE_RELOC flag. If false bind all drivers.
+ * @return 0 if OK, -ve on error
+ */
+int dm_extended_scan_fdt(const void *blob, bool pre_reloc_only);
+
+/**
+ * dm_scan_other() - Scan for other devices
+ *
+ * Some devices may not be visible to Driver Model. This weak function can
+ * be provided by boards which wish to create their own devices
+ * programmaticaly. They should do this by calling device_bind() on each
+ * device.
+ *
+ * @pre_reloc_only: If true, bind only nodes with special devicetree properties,
+ * or drivers with the DM_FLAG_PRE_RELOC flag. If false bind all drivers.
+ * @return 0 if OK, -ve on error
+ */
+int dm_scan_other(bool pre_reloc_only);
+
+/**
+ * dm_init_and_scan() - Initialise Driver Model structures and scan for devices
+ *
+ * This function initialises the roots of the driver tree and uclass trees,
+ * then scans and binds available devices from platform data and the FDT.
+ * This calls dm_init() to set up Driver Model structures.
+ *
+ * @pre_reloc_only: If true, bind only nodes with special devicetree properties,
+ * or drivers with the DM_FLAG_PRE_RELOC flag. If false bind all drivers.
+ * @return 0 if OK, -ve on error
+ */
+int dm_init_and_scan(bool pre_reloc_only);
+
+/**
+ * dm_init() - Initialise Driver Model structures
+ *
+ * This function will initialize roots of driver tree and class tree.
+ * This needs to be called before anything uses the DM
+ *
+ * @of_live:	Enable live device tree
+ * @return 0 if OK, -ve on error
+ */
+int dm_init(bool of_live);
+
+/**
+ * dm_uninit - Uninitialise Driver Model structures
+ *
+ * All devices will be removed and unbound
+ * @return 0 if OK, -ve on error
+ */
+int dm_uninit(void);
+
+#if CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)
+/**
+ * dm_remove_devices_flags - Call remove function of all drivers with
+ *                           specific removal flags set to selectively
+ *                           remove drivers
+ *
+ * All devices with the matching flags set will be removed
+ *
+ * @flags: Flags for selective device removal
+ * @return 0 if OK, -ve on error
+ */
+int dm_remove_devices_flags(uint flags);
+#else
+static inline int dm_remove_devices_flags(uint flags) { return 0; }
+#endif
+
+#endif