arm: dts: add i.MX6SLL device tree

[oweals/u-boot.git] / include / dm / device.h

diff --git a/include/dm/device.h b/include/dm/device.h
index 1cf81501ed92c31f5a85e2b5582375318fe7abae..9948bd49fa53b86b54ea0b2775f27b9cf5577b1f 100644 (file)
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -41,6 +41,11 @@ struct driver_info;
 /* 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
  *
@@ -202,6 +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
  *
@@ -453,6 +462,29 @@ int device_find_next_child(struct udevice **devp);
  */
 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
  *
@@ -464,6 +496,34 @@ fdt_addr_t dev_get_addr(struct udevice *dev);
  */
 fdt_addr_t dev_get_addr_index(struct udevice *dev, int index);
 
+/**
+ * dev_get_addr_size_index() - Get the indexed reg property of a device
+ *
+ * Returns the address and size specified in the '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
+ * @size: Pointer to size varible - this function returns the size
+ *        specified in the 'reg' property here
+ *
+ * @return addr
+ */
+fdt_addr_t dev_get_addr_size_index(struct udevice *dev, int index,
+                                  fdt_size_t *size);
+
+/**
+ * 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
  *
@@ -501,6 +561,9 @@ bool device_is_last_sibling(struct udevice *dev);
  * 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)
@@ -509,6 +572,39 @@ bool device_is_last_sibling(struct udevice *dev);
  */
 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
  *
@@ -532,6 +628,22 @@ 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);