/* Device is bound */
#define DM_FLAG_BOUND (1 << 6)
+/* Device name is allocated and should be freed on unbind() */
+#define DM_FLAG_NAME_ALLOCED (1 << 7)
+
+#define DM_FLAG_OF_PLATDATA (1 << 8)
+
/**
* struct udevice - An instance of a driver
*
#define U_BOOT_DRIVER(__name) \
ll_entry_declare(struct driver, __name, driver)
+/* Get a pointer to a given driver */
+#define DM_GET_DRIVER(__name) \
+ ll_entry_get(struct driver, __name, driver)
+
/**
* dev_get_platdata() - Get the platform data for a device
*
*/
fdt_addr_t dev_get_addr(struct udevice *dev);
+/**
+ * dev_get_addr_ptr() - Return pointer to the address of the reg property
+ * of a device
+ *
+ * @dev: Pointer to a device
+ *
+ * @return Pointer to addr, or NULL if there is no such property
+ */
+void *dev_get_addr_ptr(struct udevice *dev);
+
+/**
+ * dev_map_physmem() - Read device address from reg property of the
+ * device node and map the address into CPU address
+ * space.
+ *
+ * @dev: Pointer to device
+ * @size: size of the memory to map
+ *
+ * @return mapped address, or NULL if the device does not have reg
+ * property.
+ */
+void *dev_map_physmem(struct udevice *dev, unsigned long size);
+
+/**
+ * dev_get_addr_index() - Get the indexed reg property of a device
+ *
+ * @dev: Pointer to a device
+ * @index: the 'reg' property can hold a list of <addr, size> pairs
+ * and @index is used to select which one is required
+ *
+ * @return addr
+ */
+fdt_addr_t dev_get_addr_index(struct udevice *dev, int index);
+
+/**
+ * dev_get_addr_name() - Get the reg property of a device, indexed by name
+ *
+ * @dev: Pointer to a device
+ * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
+ * 'reg-names' property providing named-based identification. @index
+ * indicates the value to search for in 'reg-names'.
+ *
+ * @return addr
+ */
+fdt_addr_t dev_get_addr_name(struct udevice *dev, const char *name);
+
/**
* device_has_children() - check if a device has any children
*
* this is unnecessary but for probed devices which don't get a useful name
* this function can be helpful.
*
+ * The name is allocated and will be freed automatically when the device is
+ * unbound.
+ *
* @dev: Device to update
* @name: New name (this string is allocated new memory and attached to
* the device)
*/
int device_set_name(struct udevice *dev, const char *name);
+/**
+ * device_set_name_alloced() - note that a device name is allocated
+ *
+ * This sets the DM_FLAG_NAME_ALLOCED flag for the device, so that when it is
+ * unbound the name will be freed. This avoids memory leaks.
+ *
+ * @dev: Device to update
+ */
+void device_set_name_alloced(struct udevice *dev);
+
+/**
+ * of_device_is_compatible() - check if the device is compatible with the compat
+ *
+ * This allows to check whether the device is comaptible with the compat.
+ *
+ * @dev: udevice pointer for which compatible needs to be verified.
+ * @compat: Compatible string which needs to verified in the given
+ * device
+ * @return true if OK, false if the compatible is not found
+ */
+bool of_device_is_compatible(struct udevice *dev, const char *compat);
+
+/**
+ * of_machine_is_compatible() - check if the machine is compatible with
+ * the compat
+ *
+ * This allows to check whether the machine is comaptible with the compat.
+ *
+ * @compat: Compatible string which needs to verified
+ * @return true if OK, false if the compatible is not found
+ */
+bool of_machine_is_compatible(const char *compat);
+
/**
* device_is_on_pci_bus - Test if a device is on a PCI bus
*
return device_get_uclass_id(dev->parent) == UCLASS_PCI;
}
+/**
+ * device_foreach_child_safe() - iterate through child devices safely
+ *
+ * This allows the @pos child to be removed in the loop if required.
+ *
+ * @pos: struct udevice * for the current device
+ * @next: struct udevice * for the next device
+ * @parent: parent device to scan
+ */
+#define device_foreach_child_safe(pos, next, parent) \
+ list_for_each_entry_safe(pos, next, &parent->child_head, sibling_node)
+
+/**
+ * dm_scan_fdt_dev() - Bind child device in a the device tree
+ *
+ * This handles device which have sub-nodes in the device tree. It scans all
+ * sub-nodes and binds drivers for each node where a driver can be found.
+ *
+ * If this is called prior to relocation, only pre-relocation devices will be
+ * bound (those marked with u-boot,dm-pre-reloc in the device tree, or where
+ * the driver has the DM_FLAG_PRE_RELOC flag set). Otherwise, all devices will
+ * be bound.
+ *
+ * @dev: Device to scan
+ * @return 0 if OK, -ve on error
+ */
+int dm_scan_fdt_dev(struct udevice *dev);
+
/* device resource management */
typedef void (*dr_release_t)(struct udevice *dev, void *res);
typedef int (*dr_match_t)(struct udevice *dev, void *res, void *match_data);
#endif /* ! CONFIG_DEVRES */
+/**
+ * dm_set_translation_offset() - Set translation offset
+ * @offs: Translation offset
+ *
+ * Some platforms need a special address translation. Those
+ * platforms (e.g. mvebu in SPL) can configure a translation
+ * offset in the DM by calling this function. It will be
+ * added to all addresses returned in dev_get_addr().
+ */
+void dm_set_translation_offset(fdt_addr_t offs);
+
+/**
+ * dm_get_translation_offset() - Get translation offset
+ *
+ * This function returns the translation offset that can
+ * be configured by calling dm_set_translation_offset().
+ *
+ * @return translation offset for the device address (0 as default).
+ */
+fdt_addr_t dm_get_translation_offset(void);
+
#endif
projects / u-boot / blobdiff