mirror of
https://github.com/u-boot/u-boot.git
synced 2024-12-19 01:33:27 +08:00
8a8d24bdf1
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/* 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_plat() - Scan all platform data and bind drivers
|
|
*
|
|
* This scans all available plat 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_plat(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.
|
|
*
|
|
* @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(bool pre_reloc_only);
|
|
|
|
/**
|
|
* dm_extended_scan() - 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.
|
|
*
|
|
* @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(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
|