dm: core: add functions to get/remap I/O addresses by name
This functions allow us to get and remap I/O addresses by name, which is useful when there are multiple reg addresses indexed by reg-names property.
This is needed in bmips dma/eth patch series, but can also be used on many
other drivers.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/dm/read.h b/include/dm/read.h
index a27b855..efcbee1 100644
--- a/include/dm/read.h
+++ b/include/dm/read.h
@@ -125,6 +125,31 @@
void *dev_remap_addr_index(struct udevice *dev, int index);
/**
+ * dev_read_addr_name() - Get the reg property of a device, indexed by name
+ *
+ * @dev: Device to read from
+ * @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 address or FDT_ADDR_T_NONE if not found
+ */
+fdt_addr_t dev_read_addr_name(struct udevice *dev, const char* name);
+
+/**
+ * dev_remap_addr_name() - Get the reg property of a device, indexed by name,
+ * as a memory-mapped I/O pointer
+ *
+ * @dev: Device to read from
+ * @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 pointer or NULL if not found
+ */
+void *dev_remap_addr_name(struct udevice *dev, const char* name);
+
+/**
* dev_read_addr() - Get the reg property of a device
*
* @dev: Device to read from
@@ -494,6 +519,12 @@
return devfdt_get_addr_index(dev, index);
}
+static inline fdt_addr_t dev_read_addr_name(struct udevice *dev,
+ const char *name)
+{
+ return devfdt_get_addr_name(dev, name);
+}
+
static inline fdt_addr_t dev_read_addr(struct udevice *dev)
{
return devfdt_get_addr(dev);
@@ -514,6 +545,11 @@
return devfdt_remap_addr_index(dev, index);
}
+static inline void *dev_remap_addr_name(struct udevice *dev, const char *name)
+{
+ return devfdt_remap_addr_name(dev, name);
+}
+
static inline fdt_addr_t dev_read_addr_size(struct udevice *dev,
const char *propname,
fdt_size_t *sizep)