dm: core: add functions to get memory-mapped I/O addresses

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/core/fdtaddr.c b/drivers/core/fdtaddr.c
index 528cf47296..f8cdbd6688 100644
--- a/drivers/core/fdtaddr.c
+++ b/drivers/core/fdtaddr.c
@@ -136,6 +136,21 @@ void *devfdt_get_addr_ptr(struct udevice *dev)
 	return (void *)(uintptr_t)devfdt_get_addr_index(dev, 0);
 }
 
+void *devfdt_remap_addr_index(struct udevice *dev, int index)
+{
+	fdt_addr_t addr = devfdt_get_addr(dev);
+
+	if (addr == FDT_ADDR_T_NONE)
+		return NULL;
+
+	return map_physmem(addr, 0, MAP_NOCACHE);
+}
+
+void *devfdt_remap_addr(struct udevice *dev)
+{
+	return devfdt_remap_addr_index(dev, 0);
+}
+
 void *devfdt_map_physmem(struct udevice *dev, unsigned long size)
 {
 	fdt_addr_t addr = devfdt_get_addr(dev);