regmap: use fdt address translation

In the DTS, the addresses are defined relative to the parent bus. We need
to translate them to get the address as seen by the CPU core.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

drivers/core/regmap.c

@@ -70,6 +70,7 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
 	int addr_len, size_len, both_len;
 	int parent;
 	int len;
+	int index;
 
 	parent = dev_of_offset(dev->parent);
 	addr_len = fdt_address_cells(blob, parent);
@@ -86,13 +87,14 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
 	if (!map)
 		return -ENOMEM;
 
-	map->base = fdtdec_get_number(cell, addr_len);
-
-	for (range = map->range; count > 0;
-	     count--, cell += both_len, range++) {
-		range->start = fdtdec_get_number(cell, addr_len);
-		range->size = fdtdec_get_number(cell + addr_len, size_len);
+	for (range = map->range, index = 0; count > 0;
+	     count--, cell += both_len, range++, index++) {
+		fdt_size_t sz;
+		range->start = fdtdec_get_addr_size_fixed(blob, dev->of_offset,
+				"reg", index, addr_len, size_len, &sz, true);
+		range->size = sz;
 	}
+	map->base = map->range[0].start;
 
 	*mapp = map;