blob: 8d98af5c7201bb34570d97876d53d663e9068964 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Device tree support
*
* Copyright (C) 2013, 2015 Altera Corporation
* Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
*
* Based on MIPS support for CONFIG_OF device tree support
*
* Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
*/
#include <linux/init.h>
#include <linux/types.h>
#include <linux/memblock.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/io.h>
#include <asm/sections.h>
void __init early_init_devtree(void *params)
{
__be32 *dtb = (u32 *)__dtb_start;
#if defined(CONFIG_NIOS2_DTB_AT_PHYS_ADDR)
if (be32_to_cpup((__be32 *)CONFIG_NIOS2_DTB_PHYS_ADDR) ==
OF_DT_HEADER) {
params = (void *)CONFIG_NIOS2_DTB_PHYS_ADDR;
early_init_dt_scan(params);
return;
}
#endif
if (be32_to_cpu((__be32) *dtb) == OF_DT_HEADER)
params = (void *)__dtb_start;
early_init_dt_scan(params);
}
|
