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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