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 loongson2ef_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_END 74 }; 75 76 /* 77 * Valid machtype for group INGENIC 78 */ 79 #define MACH_INGENIC_JZ4730 0 /* JZ4730 SOC */ 80 #define MACH_INGENIC_JZ4740 1 /* JZ4740 SOC */ 81 #define MACH_INGENIC_JZ4770 2 /* JZ4770 SOC */ 82 #define MACH_INGENIC_JZ4780 3 /* JZ4780 SOC */ 83 #define MACH_INGENIC_X1000 4 /* X1000 SOC */ 84 85 extern char *system_type; 86 const char *get_system_type(void); 87 88 extern unsigned long mips_machtype; 89 90 #define BOOT_MEM_RAM 1 91 #define BOOT_MEM_ROM_DATA 2 92 #define BOOT_MEM_RESERVED 3 93 #define BOOT_MEM_INIT_RAM 4 94 #define BOOT_MEM_NOMAP 5 95 96 extern void add_memory_region(phys_addr_t start, phys_addr_t size, long type); 97 extern void detect_memory_region(phys_addr_t start, phys_addr_t sz_min, phys_addr_t sz_max); 98 99 extern void prom_init(void); 100 extern void prom_free_prom_memory(void); 101 extern void prom_cleanup(void); 102 103 extern void free_init_pages(const char *what, 104 unsigned long begin, unsigned long end); 105 106 extern void (*free_init_pages_eva)(void *begin, void *end); 107 108 /* 109 * Initial kernel command line, usually setup by prom_init() 110 */ 111 extern char arcs_cmdline[COMMAND_LINE_SIZE]; 112 113 /* 114 * Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware 115 */ 116 extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3; 117 118 #ifdef CONFIG_USE_OF 119 extern unsigned long fw_passed_dtb; 120 #endif 121 122 /* 123 * Platform memory detection hook called by setup_arch 124 */ 125 extern void plat_mem_setup(void); 126 127 #ifdef CONFIG_SWIOTLB 128 /* 129 * Optional platform hook to call swiotlb_setup(). 130 */ 131 extern void plat_swiotlb_setup(void); 132 133 #else 134 135 static inline void plat_swiotlb_setup(void) {} 136 137 #endif /* CONFIG_SWIOTLB */ 138 139 #ifdef CONFIG_USE_OF 140 /** 141 * plat_get_fdt() - Return a pointer to the platform's device tree blob 142 * 143 * This function provides a platform independent API to get a pointer to the 144 * flattened device tree blob. The interface between bootloader and kernel 145 * is not consistent across platforms so it is necessary to provide this 146 * API such that common startup code can locate the FDT. 147 * 148 * This is used by the KASLR code to get command line arguments and random 149 * seed from the device tree. Any platform wishing to use KASLR should 150 * provide this API and select SYS_SUPPORTS_RELOCATABLE. 151 * 152 * Return: Pointer to the flattened device tree blob. 153 */ 154 extern void *plat_get_fdt(void); 155 156 #ifdef CONFIG_RELOCATABLE 157 158 /** 159 * plat_fdt_relocated() - Update platform's information about relocated dtb 160 * 161 * This function provides a platform-independent API to set platform's 162 * information about relocated DTB if it needs to be moved due to kernel 163 * relocation occurring at boot. 164 */ 165 void plat_fdt_relocated(void *new_location); 166 167 #endif /* CONFIG_RELOCATABLE */ 168 #endif /* CONFIG_USE_OF */ 169 170 #endif /* _ASM_BOOTINFO_H */ 171