ARM: dts: rmobile: Add initial SDHI nodes to R8A77990 E3

[u-boot] / drivers / core / read.c

diff --git a/drivers/core/read.c b/drivers/core/read.c
index ce33ecdadde0b6093318788a15d299044f1a11e9..96766c7876a57eda94086d6d575ae876d03c0c87 100644 (file)
--- a/drivers/core/read.c
+++ b/drivers/core/read.c
@@ -1,15 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2017 Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
+#include <asm/types.h>
+#include <asm/io.h>
 #include <common.h>
 #include <dm.h>
 #include <mapmem.h>
 #include <dm/of_access.h>
 
+int dev_read_u32(struct udevice *dev, const char *propname, u32 *outp)
+{
+       return ofnode_read_u32(dev_ofnode(dev), propname, outp);
+}
+
 int dev_read_u32_default(struct udevice *dev, const char *propname, int def)
 {
        return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
@@ -53,6 +59,16 @@ fdt_addr_t dev_read_addr_index(struct udevice *dev, int index)
                return devfdt_get_addr_index(dev, index);
 }
 
+void *dev_remap_addr_index(struct udevice *dev, int index)
+{
+       fdt_addr_t addr = dev_read_addr_index(dev, index);
+
+       if (addr == FDT_ADDR_T_NONE)
+               return NULL;
+
+       return map_physmem(addr, 0, MAP_NOCACHE);
+}
+
 fdt_addr_t dev_read_addr(struct udevice *dev)
 {
        return dev_read_addr_index(dev, 0);
@@ -65,6 +81,11 @@ void *dev_read_addr_ptr(struct udevice *dev)
        return (addr == FDT_ADDR_T_NONE) ? NULL : map_sysmem(addr, 0);
 }
 
+void *dev_remap_addr(struct udevice *dev)
+{
+       return dev_remap_addr_index(dev, 0);
+}
+
 fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property,
                              fdt_size_t *sizep)
 {