2 * Copyright (C) 2016 Imagination Technologies
3 * Author: Paul Burton <paul.burton@mips.com>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
11 #ifndef __MIPS_ASM_YAMON_DT_H__
12 #define __MIPS_ASM_YAMON_DT_H__
14 #include <linux/types.h>
17 * struct yamon_mem_region - Represents a contiguous range of physical RAM.
18 * @start: Start physical address.
19 * @size: Maximum size of region.
20 * @discard: Length of additional memory to discard after the region.
22 struct yamon_mem_region {
29 * yamon_dt_append_cmdline() - Append YAMON-provided command line to /chosen
32 * Write the YAMON-provided command line to the bootargs property of the
33 * /chosen node in @fdt.
35 * Return: 0 on success, else -errno
37 extern __init int yamon_dt_append_cmdline(void *fdt);
40 * yamon_dt_append_memory() - Append YAMON-provided memory info to /memory
42 * @regions: zero size terminated array of physical memory regions
44 * Generate a /memory node in @fdt based upon memory size information provided
45 * by YAMON in its environment and the @regions array.
47 * Return: 0 on success, else -errno
49 extern __init int yamon_dt_append_memory(void *fdt,
50 const struct yamon_mem_region *regions);
53 * yamon_dt_serial_config() - Append YAMON-provided serial config to /chosen
56 * Generate a stdout-path property in the /chosen node of @fdt, based upon
57 * information provided in the YAMON environment about the UART configuration
60 * Return: 0 on success, else -errno
62 extern __init int yamon_dt_serial_config(void *fdt);
64 #endif /* __MIPS_ASM_YAMON_DT_H__ */