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 enum loongson_machine_type {
65 MACH_LOONGSON_UNKNOWN,
66 MACH_LEMOTE_FL2E,
67 MACH_LEMOTE_FL2F,
68 MACH_LEMOTE_ML2F7,
69 MACH_LEMOTE_YL2F89,
70 MACH_DEXXON_GDIUM2F10,
71 MACH_LEMOTE_NAS,
72 MACH_LEMOTE_LL2F,
73 MACH_LOONGSON_GENERIC,
74 MACH_LOONGSON_END
75 };
76
77 /*
78 * Valid machtype for group INGENIC
79 */
80 #define MACH_INGENIC_JZ4730 0 /* JZ4730 SOC */
81 #define MACH_INGENIC_JZ4740 1 /* JZ4740 SOC */
82
83 extern char *system_type;
84 const char *get_system_type(void);
85
86 extern unsigned long mips_machtype;
87
88 #define BOOT_MEM_MAP_MAX 32
89 #define BOOT_MEM_RAM 1
90 #define BOOT_MEM_ROM_DATA 2
91 #define BOOT_MEM_RESERVED 3
92 #define BOOT_MEM_INIT_RAM 4
93
94 /*
95 * A memory map that's built upon what was determined
96 * or specified on the command line.
97 */
98 struct boot_mem_map {
99 int nr_map;
100 struct boot_mem_map_entry {
101 phys_addr_t addr; /* start of memory segment */
102 phys_addr_t size; /* size of memory segment */
103 long type; /* type of memory segment */
104 } map[BOOT_MEM_MAP_MAX];
105 };
106
107 extern struct boot_mem_map boot_mem_map;
108
109 extern void add_memory_region(phys_addr_t start, phys_addr_t size, long type);
110 extern void detect_memory_region(phys_addr_t start, phys_addr_t sz_min, phys_addr_t sz_max);
111
112 extern void prom_init(void);
113 extern void prom_free_prom_memory(void);
114
115 extern void free_init_pages(const char *what,
116 unsigned long begin, unsigned long end);
117
118 extern void (*free_init_pages_eva)(void *begin, void *end);
119
120 /*
121 * Initial kernel command line, usually setup by prom_init()
122 */
123 extern char arcs_cmdline[COMMAND_LINE_SIZE];
124
125 /*
126 * Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware
127 */
128 extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;
129
130 #ifdef CONFIG_USE_OF
131 extern unsigned long fw_passed_dtb;
132 #endif
133
134 /*
135 * Platform memory detection hook called by setup_arch
136 */
137 extern void plat_mem_setup(void);
138
139 #ifdef CONFIG_SWIOTLB
140 /*
141 * Optional platform hook to call swiotlb_setup().
142 */
143 extern void plat_swiotlb_setup(void);
144
145 #else
146
plat_swiotlb_setup(void)147 static inline void plat_swiotlb_setup(void) {}
148
149 #endif /* CONFIG_SWIOTLB */
150
151 #endif /* _ASM_BOOTINFO_H */
152