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f2ffa5ab DD |
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> | |
73bc256d | 12 | #include <linux/export.h> |
f2ffa5ab DD |
13 | #include <linux/errno.h> |
14 | #include <linux/types.h> | |
15 | #include <linux/bootmem.h> | |
f2ffa5ab DD |
16 | #include <linux/debugfs.h> |
17 | #include <linux/of.h> | |
18 | #include <linux/of_fdt.h> | |
84988c06 | 19 | #include <linux/of_platform.h> |
f2ffa5ab DD |
20 | |
21 | #include <asm/page.h> | |
22 | #include <asm/prom.h> | |
23 | ||
9169a5d0 JC |
24 | static char mips_machine_name[64] = "Unknown"; |
25 | ||
26 | __init void mips_set_machine_name(const char *name) | |
27 | { | |
28 | if (name == NULL) | |
29 | return; | |
30 | ||
41c8366b | 31 | strlcpy(mips_machine_name, name, sizeof(mips_machine_name)); |
9169a5d0 JC |
32 | pr_info("MIPS: machine is %s\n", mips_get_machine_name()); |
33 | } | |
34 | ||
35 | char *mips_get_machine_name(void) | |
36 | { | |
37 | return mips_machine_name; | |
38 | } | |
39 | ||
40 | #ifdef CONFIG_OF | |
f2ffa5ab DD |
41 | void __init early_init_dt_add_memory_arch(u64 base, u64 size) |
42 | { | |
43 | return add_memory_region(base, size, BOOT_MEM_RAM); | |
44 | } | |
45 | ||
672c5446 | 46 | void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) |
f2ffa5ab | 47 | { |
672c5446 | 48 | return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS)); |
f2ffa5ab DD |
49 | } |
50 | ||
0cdde839 | 51 | void __init __dt_setup_arch(void *bph) |
7d6168e5 | 52 | { |
f75813c0 | 53 | if (!early_init_dt_scan(bph)) |
7d6168e5 | 54 | return; |
40e91aec | 55 | |
97e7f455 | 56 | mips_set_machine_name(of_flat_dt_get_machine_name()); |
7d6168e5 | 57 | } |
84988c06 KC |
58 | |
59 | int __init __dt_register_buses(const char *bus0, const char *bus1) | |
60 | { | |
61 | static struct of_device_id of_ids[3]; | |
62 | ||
63 | if (!of_have_populated_dt()) | |
64 | panic("device tree not present"); | |
65 | ||
66 | strlcpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible)); | |
9127dc47 KC |
67 | if (bus1) { |
68 | strlcpy(of_ids[1].compatible, bus1, | |
69 | sizeof(of_ids[1].compatible)); | |
70 | } | |
84988c06 KC |
71 | |
72 | if (of_platform_populate(NULL, of_ids, NULL, NULL)) | |
73 | panic("failed to populate DT"); | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
9169a5d0 | 78 | #endif |