u-boot/include/dm/simple_bus.h
Bin Meng 80279fa129 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>
2021-04-15 14:22:17 +05:30

15 lines
222 B
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2020 Google LLC
*/
#ifndef __DM_SIMPLE_BUS_H
#define __DM_SIMPLE_BUS_H
struct simple_bus_plat {
fdt_addr_t base;
fdt_size_t size;
fdt_addr_t target;
};
#endif