X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fsyscon.h;h=2e02199c051c4dc89ddade60be80999341b9d312;hb=64cfeda8ae2e95751c5d2dfa4dc4a906478ae2f6;hp=34842aa4705891928df2f1346f22803f80116caa;hpb=4711e7f7af839b41a6d78490257a9e7975494dd3;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/syscon.h b/include/syscon.h
index 34842aa..2e02199 100644
--- a/include/syscon.h
+++ b/include/syscon.h
@@ -1,13 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2015 Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __SYSCON_H
 #define __SYSCON_H
 
+#include <dm/ofnode.h>
+#include <fdtdec.h>
+
 /**
  * struct syscon_uc_info - Information stored by the syscon UCLASS_UCLASS
  *
@@ -28,9 +30,11 @@ struct syscon_ops {
  * We don't support 64-bit machines. If they are so resource-contrained that
  * they need to use OF_PLATDATA, something is horribly wrong with the
  * education of our hardware engineers.
+ *
+ * Update: 64-bit is now supported and we have an education crisis.
  */
-struct syscon_base_platdata {
-	u32 reg[2];
+struct syscon_base_plat {
+	fdt_val_t reg[2];
 };
 #endif
 
@@ -70,6 +74,19 @@ int syscon_get_by_driver_data(ulong driver_data, struct udevice **devp);
 struct regmap *syscon_get_regmap_by_driver_data(ulong driver_data);
 
 /**
+ * syscon_regmap_lookup_by_phandle() - Look up a controller by a phandle
+ *
+ * This operates by looking up the given name in the device (device
+ * tree property) of the device using the system controller.
+ *
+ * @dev:	Device using the system controller
+ * @name:	Name of property referring to the system controller
+ * @return	A pointer to the regmap if found, ERR_PTR(-ve) on error
+ */
+struct regmap *syscon_regmap_lookup_by_phandle(struct udevice *dev,
+					       const char *name);
+
+/**
  * syscon_get_first_range() - get the first memory range from a syscon regmap
  *
  * @driver_data:	Driver data value to look up
@@ -78,4 +95,11 @@ struct regmap *syscon_get_regmap_by_driver_data(ulong driver_data);
  */
 void *syscon_get_first_range(ulong driver_data);
 
+/**
+ * syscon_node_to_regmap - get regmap from syscon
+ *
+ * @node:		Device node of syscon
+ */
+struct regmap *syscon_node_to_regmap(ofnode node);
+
 #endif