dm: implement a DMA uclass

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

diff --git a/include/dm/device.h b/include/dm/device.h
index 7fb99356be0d8c979d44640a7013b6d6bc61f540..1cf81501ed92c31f5a85e2b5582375318fe7abae 100644 (file)
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -453,6 +453,17 @@ int device_find_next_child(struct udevice **devp);
  */
 fdt_addr_t dev_get_addr(struct udevice *dev);
 
+/**
+ * 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);
+
 /**
  * device_has_children() - check if a device has any children
  *
@@ -776,4 +787,25 @@ static inline void devm_kfree(struct udevice *dev, void *ptr)
 
 #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