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 */
64enum 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_LEMOTE_A1004,
74	MACH_LEMOTE_A1101,
75	MACH_LEMOTE_A1201,
76	MACH_LEMOTE_A1205,
77	MACH_LOONGSON_END
78};
79
80/*
81 * Valid machtype for group INGENIC
82 */
83#define  MACH_INGENIC_JZ4730	0	/* JZ4730 SOC		*/
84#define  MACH_INGENIC_JZ4740	1	/* JZ4740 SOC		*/
85
86extern char *system_type;
87const char *get_system_type(void);
88
89extern unsigned long mips_machtype;
90
91#define BOOT_MEM_MAP_MAX	32
92#define BOOT_MEM_RAM		1
93#define BOOT_MEM_ROM_DATA	2
94#define BOOT_MEM_RESERVED	3
95#define BOOT_MEM_INIT_RAM	4
96
97/*
98 * A memory map that's built upon what was determined
99 * or specified on the command line.
100 */
101struct boot_mem_map {
102	int nr_map;
103	struct boot_mem_map_entry {
104		phys_t addr;	/* start of memory segment */
105		phys_t size;	/* size of memory segment */
106		long type;		/* type of memory segment */
107	} map[BOOT_MEM_MAP_MAX];
108};
109
110extern struct boot_mem_map boot_mem_map;
111
112extern void add_memory_region(phys_t start, phys_t size, long type);
113extern void detect_memory_region(phys_t start, phys_t sz_min,  phys_t sz_max);
114
115extern void prom_init(void);
116extern void prom_free_prom_memory(void);
117
118extern void free_init_pages(const char *what,
119			    unsigned long begin, unsigned long end);
120
121extern void (*free_init_pages_eva)(void *begin, void *end);
122
123/*
124 * Initial kernel command line, usually setup by prom_init()
125 */
126extern char arcs_cmdline[COMMAND_LINE_SIZE];
127
128/*
129 * Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware
130 */
131extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;
132
133/*
134 * Platform memory detection hook called by setup_arch
135 */
136extern void plat_mem_setup(void);
137
138#ifdef CONFIG_SWIOTLB
139/*
140 * Optional platform hook to call swiotlb_setup().
141 */
142extern void plat_swiotlb_setup(void);
143
144#else
145
146static inline void plat_swiotlb_setup(void) {}
147
148#endif /* CONFIG_SWIOTLB */
149
150#endif /* _ASM_BOOTINFO_H */
151