diff options
Diffstat (limited to 'include/dm/device.h')
| -rw-r--r-- | include/dm/device.h | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/include/dm/device.h b/include/dm/device.h index f03bcd3..babf8ac 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -42,7 +42,9 @@ struct driver_info; #define DM_FLAG_BOUND (1 << 6) /* Device name is allocated and should be freed on unbind() */ -#define DM_NAME_ALLOCED (1 << 7) +#define DM_FLAG_NAME_ALLOCED (1 << 7) + +#define DM_FLAG_OF_PLATDATA (1 << 8) /** * struct udevice - An instance of a driver @@ -205,6 +207,10 @@ struct 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 * @@ -467,6 +473,19 @@ fdt_addr_t dev_get_addr(struct udevice *dev); 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 @@ -540,7 +559,7 @@ 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_NAME_ALLOCED flag for the device, so that when it is + * 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 @@ -593,6 +612,22 @@ static inline bool device_is_on_pci_bus(struct udevice *dev) #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); |