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>
diff --git a/include/dm/simple_bus.h b/include/dm/simple_bus.h
index 4ad4cc4..b710401 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