dm: core: Correctly read <ranges> of simple-bus

At present we decode simple bus <ranges> using the following assumption:

- parent #address-cells 1
- child #address-cells 1
- child #size-cells 1

However this might not always be the case.

Update to use fdt_addr_t and fdt_size_t in 'struct simple_bus_plat', and
use fdt_read_ranges() to correctly decode it according to the actual
parent and child #address-cells / #size-cells under a Kconfig option
CONFIG_SIMPLE_BUS_CORRECT_RANGE which can be turned on for any board
that needs it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/dm/simple_bus.h b/include/dm/simple_bus.h
index 4ad4cc4051d..b7104013c05 100644
--- a/include/dm/simple_bus.h
+++ b/include/dm/simple_bus.h
@@ -7,9 +7,9 @@
 #define __DM_SIMPLE_BUS_H
 
 struct simple_bus_plat {
-	u32 base;
-	u32 size;
-	u32 target;
+	fdt_addr_t base;
+	fdt_size_t size;
+	fdt_addr_t target;
 };
 
 #endif