1/*
 2 * MIPS support for CONFIG_OF device tree support
 3 *
 4 * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10
11#include <linux/init.h>
12#include <linux/export.h>
13#include <linux/errno.h>
14#include <linux/types.h>
15#include <linux/bootmem.h>
16#include <linux/debugfs.h>
17#include <linux/of.h>
18#include <linux/of_fdt.h>
19#include <linux/of_platform.h>
20
21#include <asm/bootinfo.h>
22#include <asm/page.h>
23#include <asm/prom.h>
24
25static char mips_machine_name[64] = "Unknown";
26
27__init void mips_set_machine_name(const char *name)
28{
29	if (name == NULL)
30		return;
31
32	strlcpy(mips_machine_name, name, sizeof(mips_machine_name));
33	pr_info("MIPS: machine is %s\n", mips_get_machine_name());
34}
35
36char *mips_get_machine_name(void)
37{
38	return mips_machine_name;
39}
40
41#ifdef CONFIG_USE_OF
42void __init early_init_dt_add_memory_arch(u64 base, u64 size)
43{
44	return add_memory_region(base, size, BOOT_MEM_RAM);
45}
46
47void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
48{
49	return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
50}
51
52void __init __dt_setup_arch(void *bph)
53{
54	if (!early_init_dt_scan(bph))
55		return;
56
57	mips_set_machine_name(of_flat_dt_get_machine_name());
58}
59
60int __init __dt_register_buses(const char *bus0, const char *bus1)
61{
62	static struct of_device_id of_ids[3];
63
64	if (!of_have_populated_dt())
65		panic("device tree not present");
66
67	strlcpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible));
68	if (bus1) {
69		strlcpy(of_ids[1].compatible, bus1,
70			sizeof(of_ids[1].compatible));
71	}
72
73	if (of_platform_populate(NULL, of_ids, NULL, NULL))
74		panic("failed to populate DT");
75
76	return 0;
 
 
 
 
 
77}
78
79#endif

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * MIPS support for CONFIG_OF device tree support
 4 *
 5 * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
 
 
 
 
 6 */
 7
 8#include <linux/init.h>
 9#include <linux/export.h>
10#include <linux/errno.h>
11#include <linux/types.h>
12#include <linux/memblock.h>
13#include <linux/debugfs.h>
14#include <linux/of.h>
15#include <linux/of_fdt.h>
16#include <linux/of_platform.h>
17
18#include <asm/bootinfo.h>
19#include <asm/page.h>
20#include <asm/prom.h>
21
22static char mips_machine_name[64] = "Unknown";
23
24__init void mips_set_machine_name(const char *name)
25{
26	if (name == NULL)
27		return;
28
29	strscpy(mips_machine_name, name, sizeof(mips_machine_name));
30	pr_info("MIPS: machine is %s\n", mips_get_machine_name());
31}
32
33char *mips_get_machine_name(void)
34{
35	return mips_machine_name;
36}
37
38#ifdef CONFIG_USE_OF
 
 
 
 
 
 
 
 
 
39
40void __init __dt_setup_arch(void *bph)
41{
42	if (!early_init_dt_scan(bph))
43		return;
44
45	mips_set_machine_name(of_flat_dt_get_machine_name());
46}
47
48int __init __dt_register_buses(const char *bus0, const char *bus1)
49{
50	static struct of_device_id of_ids[3];
51
52	if (!of_have_populated_dt())
53		panic("device tree not present");
54
55	strscpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible));
56	if (bus1) {
57		strscpy(of_ids[1].compatible, bus1,
58			sizeof(of_ids[1].compatible));
59	}
60
61	if (of_platform_populate(NULL, of_ids, NULL, NULL))
62		panic("failed to populate DT");
63
64	return 0;
65}
66
67void __weak __init device_tree_init(void)
68{
69	unflatten_and_copy_device_tree();
70}
71
72#endif