dm: core: Implement live tree 'read' functions

When the live tree is supported some functions need to change a little.
Add an implementation which is used when not inlining these functions.

Signed-off-by: Simon Glass <sjg@chromium.org>

2 files changed, 143 insertions, 0 deletions

diff --git a/drivers/core/Makefile b/drivers/core/Makefile
index d74b065..435cf98 100644
--- a/drivers/core/Makefile
+++ b/drivers/core/Makefile
@@ -12,4 +12,7 @@ obj-$(CONFIG_DM)	+= dump.o
 obj-$(CONFIG_$(SPL_)REGMAP)	+= regmap.o
 obj-$(CONFIG_$(SPL_)SYSCON)	+= syscon-uclass.o
 obj-$(CONFIG_OF_LIVE) += of_access.o of_addr.o
+ifndef CONFIG_DM_DEV_READ_INLINE
+obj-$(CONFIG_OF_CONTROL) += read.o
+endif
 obj-$(CONFIG_OF_CONTROL) += of_extra.o ofnode.o
diff --git a/drivers/core/read.c b/drivers/core/read.c
new file mode 100644
index 0000000..3131e53
--- /dev/null
+++ b/drivers/core/read.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2017 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/of_access.h>
+
+int dev_read_u32_default(struct udevice *dev, const char *propname, int def)
+{
+	return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
+}
+
+const char *dev_read_string(struct udevice *dev, const char *propname)
+{
+	return ofnode_read_string(dev_ofnode(dev), propname);
+}
+
+bool dev_read_bool(struct udevice *dev, const char *propname)
+{
+	return ofnode_read_bool(dev_ofnode(dev), propname);
+}
+
+ofnode dev_read_subnode(struct udevice *dev, const char *subnode_name)
+{
+	return ofnode_find_subnode(dev_ofnode(dev), subnode_name);
+}
+
+ofnode dev_read_first_subnode(struct udevice *dev)
+{
+	return ofnode_first_subnode(dev_ofnode(dev));
+}
+
+ofnode dev_read_next_subnode(ofnode node)
+{
+	return ofnode_next_subnode(node);
+}
+
+int dev_read_size(struct udevice *dev, const char *propname)
+{
+	return ofnode_read_size(dev_ofnode(dev), propname);
+}
+
+fdt_addr_t dev_read_addr_index(struct udevice *dev, int index)
+{
+	if (ofnode_is_np(dev_ofnode(dev)))
+		return ofnode_get_addr_index(dev_ofnode(dev), index);
+	else
+		return devfdt_get_addr_index(dev, index);
+}
+
+fdt_addr_t dev_read_addr(struct udevice *dev)
+{
+	return dev_read_addr_index(dev, 0);
+}
+
+fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property,
+				fdt_size_t *sizep)
+{
+	return ofnode_get_addr_size(dev_ofnode(dev), property, sizep);
+}
+
+const char *dev_read_name(struct udevice *dev)
+{
+	return ofnode_get_name(dev_ofnode(dev));
+}
+
+int dev_read_stringlist_search(struct udevice *dev, const char *property,
+			  const char *string)
+{
+	return ofnode_stringlist_search(dev_ofnode(dev), property, string);
+}
+
+int dev_read_phandle_with_args(struct udevice *dev, const char *list_name,
+				const char *cells_name, int cell_count,
+				int index,
+				struct ofnode_phandle_args *out_args)
+{
+	return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name,
+					      cells_name, cell_count, index,
+					      out_args);
+}
+
+int dev_read_addr_cells(struct udevice *dev)
+{
+	return ofnode_read_addr_cells(dev_ofnode(dev));
+}
+
+int dev_read_size_cells(struct udevice *dev)
+{
+	return ofnode_read_size_cells(dev_ofnode(dev));
+}
+
+int dev_read_phandle(struct udevice *dev)
+{
+	ofnode node = dev_ofnode(dev);
+
+	if (ofnode_is_np(node))
+		return ofnode_to_np(node)->phandle;
+	else
+		return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node));
+}
+
+const u32 *dev_read_prop(struct udevice *dev, const char *propname, int *lenp)
+{
+	return ofnode_read_prop(dev_ofnode(dev), propname, lenp);
+}
+
+int dev_read_alias_seq(struct udevice *dev, int *devnump)
+{
+	ofnode node = dev_ofnode(dev);
+	const char *uc_name = dev->uclass->uc_drv->name;
+	int ret;
+
+	if (ofnode_is_np(node)) {
+		ret = of_alias_get_id(ofnode_to_np(node), uc_name);
+		if (ret >= 0)
+			*devnump = ret;
+	} else {
+		ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name,
+					   ofnode_to_offset(node), devnump);
+	}
+
+	return ret;
+}
+
+int dev_read_u32_array(struct udevice *dev, const char *propname,
+		       u32 *out_values, size_t sz)
+{
+	return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz);
+}
+
+const uint8_t *dev_read_u8_array_ptr(struct udevice *dev, const char *propname,
+				     size_t sz)
+{
+	return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz);
+}