1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file COPYING in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1995, 1996, 2003 by Ralf Baechle
7 * Copyright (C) 1995, 1996 Andreas Busse
8 * Copyright (C) 1995, 1996 Stoned Elipot
9 * Copyright (C) 1995, 1996 Paul M. Antoine.
10 * Copyright (C) 2009 Zhang Le
11 */
12 #ifndef _ASM_BOOTINFO_H
13 #define _ASM_BOOTINFO_H
14
15 #include <linux/types.h>
16 #include <asm/setup.h>
17
18 /*
19 * The MACH_ IDs are sort of equivalent to PCI product IDs. As such the
20 * numbers do not necessarily reflect technical relations or similarities
21 * between systems.
22 */
23
24 /*
25 * Valid machtype values for group unknown
26 */
27 #define MACH_UNKNOWN 0 /* whatever... */
28
29 /*
30 * Valid machtype for group DEC
31 */
32 #define MACH_DSUNKNOWN 0
33 #define MACH_DS23100 1 /* DECstation 2100 or 3100 */
34 #define MACH_DS5100 2 /* DECsystem 5100 */
35 #define MACH_DS5000_200 3 /* DECstation 5000/200 */
36 #define MACH_DS5000_1XX 4 /* DECstation 5000/120, 125, 133, 150 */
37 #define MACH_DS5000_XX 5 /* DECstation 5000/20, 25, 33, 50 */
38 #define MACH_DS5000_2X0 6 /* DECstation 5000/240, 260 */
39 #define MACH_DS5400 7 /* DECsystem 5400 */
40 #define MACH_DS5500 8 /* DECsystem 5500 */
41 #define MACH_DS5800 9 /* DECsystem 5800 */
42 #define MACH_DS5900 10 /* DECsystem 5900 */
43
44 /*
45 * Valid machtype for group PMC-MSP
46 */
47 #define MACH_MSP4200_EVAL 0 /* PMC-Sierra MSP4200 Evaluation */
48 #define MACH_MSP4200_GW 1 /* PMC-Sierra MSP4200 Gateway demo */
49 #define MACH_MSP4200_FPGA 2 /* PMC-Sierra MSP4200 Emulation */
50 #define MACH_MSP7120_EVAL 3 /* PMC-Sierra MSP7120 Evaluation */
51 #define MACH_MSP7120_GW 4 /* PMC-Sierra MSP7120 Residential GW */
52 #define MACH_MSP7120_FPGA 5 /* PMC-Sierra MSP7120 Emulation */
53 #define MACH_MSP_OTHER 255 /* PMC-Sierra unknown board type */
54
55 /*
56 * Valid machtype for group Mikrotik
57 */
58 #define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */
59 #define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */
60
61 /*
62 * Valid machtype for Loongson family
63 */
64 #define MACH_LOONGSON_UNKNOWN 0
65 #define MACH_LEMOTE_FL2E 1
66 #define MACH_LEMOTE_FL2F 2
67 #define MACH_LEMOTE_ML2F7 3
68 #define MACH_LEMOTE_YL2F89 4
69 #define MACH_DEXXON_GDIUM2F10 5
70 #define MACH_LEMOTE_NAS 6
71 #define MACH_LEMOTE_LL2F 7
72 #define MACH_LOONGSON_END 8
73
74 /*
75 * Valid machtype for group INGENIC
76 */
77 #define MACH_INGENIC_JZ4730 0 /* JZ4730 SOC */
78 #define MACH_INGENIC_JZ4740 1 /* JZ4740 SOC */
79
80 extern char *system_type;
81 const char *get_system_type(void);
82
83 extern unsigned long mips_machtype;
84
85 #define BOOT_MEM_MAP_MAX 32
86 #define BOOT_MEM_RAM 1
87 #define BOOT_MEM_ROM_DATA 2
88 #define BOOT_MEM_RESERVED 3
89 #define BOOT_MEM_INIT_RAM 4
90
91 /*
92 * A memory map that's built upon what was determined
93 * or specified on the command line.
94 */
95 struct boot_mem_map {
96 int nr_map;
97 struct boot_mem_map_entry {
98 phys_t addr; /* start of memory segment */
99 phys_t size; /* size of memory segment */
100 long type; /* type of memory segment */
101 } map[BOOT_MEM_MAP_MAX];
102 };
103
104 extern struct boot_mem_map boot_mem_map;
105
106 extern void add_memory_region(phys_t start, phys_t size, long type);
107
108 extern void prom_init(void);
109 extern void prom_free_prom_memory(void);
110
111 extern void free_init_pages(const char *what,
112 unsigned long begin, unsigned long end);
113
114 /*
115 * Initial kernel command line, usually setup by prom_init()
116 */
117 extern char arcs_cmdline[COMMAND_LINE_SIZE];
118
119 /*
120 * Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware
121 */
122 extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;
123
124 /*
125 * Platform memory detection hook called by setup_arch
126 */
127 extern void plat_mem_setup(void);
128
129 #ifdef CONFIG_SWIOTLB
130 /*
131 * Optional platform hook to call swiotlb_setup().
132 */
133 extern void plat_swiotlb_setup(void);
134
135 #else
136
plat_swiotlb_setup(void)137 static inline void plat_swiotlb_setup(void) {}
138
139 #endif /* CONFIG_SWIOTLB */
140
141 #endif /* _ASM_BOOTINFO_H */
142