Add functions to add addresses in the device tree using ofnode references.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Changes in v2: None
drivers/core/ofnode.c | 27 +++++++++++++++++++++++++++
include/dm/ofnode.h | 21 +++++++++++++++++++++
2 files changed, 48 insertions(+)
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index e6c9a28bae..ac312d6546 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -11,6 +11,7 @@
#include <fdt_support.h>
#include <libfdt.h>
#include <dm/of_access.h>
+#include <dm/of_addr.h>
#include <dm/ofnode.h>
#include <linux/err.h>
@@ -195,6 +196,32 @@ int ofnode_read_size(ofnode node, const char *propname)
return -EINVAL;
}
+fdt_addr_t ofnode_get_addr_index(ofnode node, int index)
+{
+ if (ofnode_is_np(node)) {
+ const __be32 *prop_val;
+ uint flags;
+ u64 size;
+
+ prop_val = of_get_address(
+ (struct device_node *)ofnode_to_np(node), index,
+ &size, &flags);
+ if (!prop_val)
+ return FDT_ADDR_T_NONE;
+ return be32_to_cpup(prop_val);
+ } else {
+ return fdt_get_base_address(gd->fdt_blob,
+ ofnode_to_offset(node));
+ }
+
+ return FDT_ADDR_T_NONE;
+}
+
+fdt_addr_t ofnode_get_addr(ofnode node)
+{
+ return ofnode_get_addr_index(node, 0);
+}
+
int ofnode_stringlist_search(ofnode node, const char *property,
const char *string)
{
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index b4090128d4..96cfc11db4 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -319,6 +319,27 @@ const char *ofnode_get_name(ofnode node);
*/
int ofnode_read_size(ofnode node, const char *propname);
+/**
+ * ofnode_get_addr_index() - get an address from a node
+ *
+ * This reads the register address from a node
+ *
+ * @node: node to read from
+ * @index: Index of address to read (0 for first)
+ * @return address, or FDT_ADDR_T_NONE if not present or invalid
+ */
+phys_addr_t ofnode_get_addr_index(ofnode node, int index);
+
+/**
+ * ofnode_get_addr() - get an address from a node
+ *
+ * This reads the register address from a node
+ *
+ * @node: node to read from
+ * @return address, or FDT_ADDR_T_NONE if not present or invalid
+ */
+phys_addr_t ofnode_get_addr(ofnode node);
+
/**
* ofnode_stringlist_search() - find a string in a string list and return index
*
--
2.13.0.rc2.291.g57267f2277-goog
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