core: read: add dev_read_addr_size_index_ptr function

Add dev_read_addr_size_index_ptr function with the same functionality as
dev_read_addr_size_index, but instead a return pointer is given.
Use map_sysmem() function as cast for the return.

Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/core/read.c b/drivers/core/read.c
index 5749473a6ca..49066b59cda 100644
--- a/drivers/core/read.c
+++ b/drivers/core/read.c
@@ -150,6 +150,17 @@ fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
 		return devfdt_get_addr_size_index(dev, index, size);
 }
 
+void *dev_read_addr_size_index_ptr(const struct udevice *dev, int index,
+				   fdt_size_t *size)
+{
+	fdt_addr_t addr = dev_read_addr_size_index(dev, index, size);
+
+	if (addr == FDT_ADDR_T_NONE)
+		return NULL;
+
+	return map_sysmem(addr, 0);
+}
+
 void *dev_remap_addr_index(const struct udevice *dev, int index)
 {
 	fdt_addr_t addr = dev_read_addr_index(dev, index);