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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | /* * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive * for more details. * * Copyright (C) 1995, 1996, 2003 by Ralf Baechle * Copyright (C) 1995, 1996 Andreas Busse * Copyright (C) 1995, 1996 Stoned Elipot * Copyright (C) 1995, 1996 Paul M. Antoine. * Copyright (C) 2009 Zhang Le */ #ifndef _ASM_BOOTINFO_H #define _ASM_BOOTINFO_H #include <linux/types.h> #include <asm/setup.h> /* * The MACH_ IDs are sort of equivalent to PCI product IDs. As such the * numbers do not necessarily reflect technical relations or similarities * between systems. */ /* * Valid machtype values for group unknown */ #define MACH_UNKNOWN 0 /* whatever... */ /* * Valid machtype for group DEC */ #define MACH_DSUNKNOWN 0 #define MACH_DS23100 1 /* DECstation 2100 or 3100 */ #define MACH_DS5100 2 /* DECsystem 5100 */ #define MACH_DS5000_200 3 /* DECstation 5000/200 */ #define MACH_DS5000_1XX 4 /* DECstation 5000/120, 125, 133, 150 */ #define MACH_DS5000_XX 5 /* DECstation 5000/20, 25, 33, 50 */ #define MACH_DS5000_2X0 6 /* DECstation 5000/240, 260 */ #define MACH_DS5400 7 /* DECsystem 5400 */ #define MACH_DS5500 8 /* DECsystem 5500 */ #define MACH_DS5800 9 /* DECsystem 5800 */ #define MACH_DS5900 10 /* DECsystem 5900 */ /* * Valid machtype for group Mikrotik */ #define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */ #define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */ /* * Valid machtype for Loongson family */ enum loongson2ef_machine_type { MACH_LOONGSON_UNKNOWN, MACH_LEMOTE_FL2E, MACH_LEMOTE_FL2F, MACH_LEMOTE_ML2F7, MACH_LEMOTE_YL2F89, MACH_DEXXON_GDIUM2F10, MACH_LEMOTE_NAS, MACH_LEMOTE_LL2F, MACH_LOONGSON_END }; /* * Valid machtype for group INGENIC */ enum ingenic_machine_type { MACH_INGENIC_UNKNOWN, MACH_INGENIC_JZ4720, MACH_INGENIC_JZ4725, MACH_INGENIC_JZ4725B, MACH_INGENIC_JZ4730, MACH_INGENIC_JZ4740, MACH_INGENIC_JZ4750, MACH_INGENIC_JZ4755, MACH_INGENIC_JZ4760, MACH_INGENIC_JZ4760B, MACH_INGENIC_JZ4770, MACH_INGENIC_JZ4775, MACH_INGENIC_JZ4780, MACH_INGENIC_X1000, MACH_INGENIC_X1000E, MACH_INGENIC_X1830, MACH_INGENIC_X2000, MACH_INGENIC_X2000E, MACH_INGENIC_X2000H, MACH_INGENIC_X2100, }; extern char *system_type; const char *get_system_type(void); extern unsigned long mips_machtype; extern void detect_memory_region(phys_addr_t start, phys_addr_t sz_min, phys_addr_t sz_max); extern void prom_init(void); extern void prom_free_prom_memory(void); extern void prom_cleanup(void); extern void free_init_pages(const char *what, unsigned long begin, unsigned long end); extern void (*free_init_pages_eva)(void *begin, void *end); /* * Initial kernel command line, usually setup by prom_init() */ extern char arcs_cmdline[COMMAND_LINE_SIZE]; /* * Registers a0, a1, a2 and a3 as passed to the kernel entry by firmware */ extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3; #ifdef CONFIG_USE_OF #include <linux/libfdt.h> #include <linux/of_fdt.h> extern char __appended_dtb[]; static inline void *get_fdt(void) { if (IS_ENABLED(CONFIG_MIPS_RAW_APPENDED_DTB) || IS_ENABLED(CONFIG_MIPS_ELF_APPENDED_DTB)) if (fdt_magic(&__appended_dtb) == FDT_MAGIC) return &__appended_dtb; if (fw_arg0 == -2) /* UHI interface */ return (void *)fw_arg1; if (IS_ENABLED(CONFIG_BUILTIN_DTB)) if (&__dtb_start != &__dtb_end) return &__dtb_start; return NULL; } #endif /* * Platform memory detection hook called by arch_mem_init() */ extern void plat_mem_setup(void); #ifdef CONFIG_SWIOTLB /* * Optional platform hook to call swiotlb_setup(). */ extern void plat_swiotlb_setup(void); #else static inline void plat_swiotlb_setup(void) {} #endif /* CONFIG_SWIOTLB */ #ifdef CONFIG_USE_OF /** * plat_get_fdt() - Return a pointer to the platform's device tree blob * * This function provides a platform independent API to get a pointer to the * flattened device tree blob. The interface between bootloader and kernel * is not consistent across platforms so it is necessary to provide this * API such that common startup code can locate the FDT. * * This is used by the KASLR code to get command line arguments and random * seed from the device tree. Any platform wishing to use KASLR should * provide this API and select SYS_SUPPORTS_RELOCATABLE. * * Return: Pointer to the flattened device tree blob. */ extern void *plat_get_fdt(void); #ifdef CONFIG_RELOCATABLE /** * plat_fdt_relocated() - Update platform's information about relocated dtb * * This function provides a platform-independent API to set platform's * information about relocated DTB if it needs to be moved due to kernel * relocation occurring at boot. */ void plat_fdt_relocated(void *new_location); #endif /* CONFIG_RELOCATABLE */ #endif /* CONFIG_USE_OF */ #endif /* _ASM_BOOTINFO_H */ |