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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 | /* * identify.c: machine identification code. * * Copyright (C) 1998 Harald Koerfgen and Paul M. Antoine * Copyright (C) 2002, 2003, 2004, 2005 Maciej W. Rozycki */ #include <linux/init.h> #include <linux/kernel.h> #include <linux/mc146818rtc.h> #include <linux/module.h> #include <linux/string.h> #include <linux/types.h> #include <asm/bootinfo.h> #include <asm/dec/ioasic.h> #include <asm/dec/ioasic_addrs.h> #include <asm/dec/kn01.h> #include <asm/dec/kn02.h> #include <asm/dec/kn02ba.h> #include <asm/dec/kn02ca.h> #include <asm/dec/kn03.h> #include <asm/dec/kn230.h> #include <asm/dec/prom.h> #include <asm/dec/system.h> #include "dectypes.h" static const char *dec_system_strings[] = { [MACH_DSUNKNOWN] "unknown DECstation", [MACH_DS23100] "DECstation 2100/3100", [MACH_DS5100] "DECsystem 5100", [MACH_DS5000_200] "DECstation 5000/200", [MACH_DS5000_1XX] "DECstation 5000/1xx", [MACH_DS5000_XX] "Personal DECstation 5000/xx", [MACH_DS5000_2X0] "DECstation 5000/2x0", [MACH_DS5400] "DECsystem 5400", [MACH_DS5500] "DECsystem 5500", [MACH_DS5800] "DECsystem 5800", [MACH_DS5900] "DECsystem 5900", }; const char *get_system_type(void) { #define STR_BUF_LEN 64 static char system[STR_BUF_LEN]; static int called = 0; if (called == 0) { called = 1; snprintf(system, STR_BUF_LEN, "Digital %s", dec_system_strings[mips_machtype]); } return system; } /* * Setup essential system-specific memory addresses. We need them * early. Semantically the functions belong to prom/init.c, but they * are compact enough we want them inlined. --macro */ volatile u8 *dec_rtc_base; EXPORT_SYMBOL(dec_rtc_base); static inline void prom_init_kn01(void) { dec_kn_slot_base = KN01_SLOT_BASE; dec_kn_slot_size = KN01_SLOT_SIZE; dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN01_RTC); } static inline void prom_init_kn230(void) { dec_kn_slot_base = KN01_SLOT_BASE; dec_kn_slot_size = KN01_SLOT_SIZE; dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN01_RTC); } static inline void prom_init_kn02(void) { dec_kn_slot_base = KN02_SLOT_BASE; dec_kn_slot_size = KN02_SLOT_SIZE; dec_tc_bus = 1; dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN02_RTC); } static inline void prom_init_kn02xa(void) { dec_kn_slot_base = KN02XA_SLOT_BASE; dec_kn_slot_size = IOASIC_SLOT_SIZE; dec_tc_bus = 1; ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL); dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY); } static inline void prom_init_kn03(void) { dec_kn_slot_base = KN03_SLOT_BASE; dec_kn_slot_size = IOASIC_SLOT_SIZE; dec_tc_bus = 1; ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL); dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY); } void __init prom_identify_arch(u32 magic) { unsigned char dec_cpunum, dec_firmrev, dec_etc, dec_systype; u32 dec_sysid; if (!prom_is_rex(magic)) { dec_sysid = simple_strtoul(prom_getenv("systype"), (char **)0, 0); } else { dec_sysid = rex_getsysid(); if (dec_sysid == 0) { printk("Zero sysid returned from PROM! " "Assuming a PMAX-like machine.\n"); dec_sysid = 1; } } dec_cpunum = (dec_sysid & 0xff000000) >> 24; dec_systype = (dec_sysid & 0xff0000) >> 16; dec_firmrev = (dec_sysid & 0xff00) >> 8; dec_etc = dec_sysid & 0xff; /* * FIXME: This may not be an exhaustive list of DECStations/Servers! * Put all model-specific initialisation calls here. */ switch (dec_systype) { case DS2100_3100: mips_machtype = MACH_DS23100; prom_init_kn01(); break; case DS5100: /* DS5100 MIPSMATE */ mips_machtype = MACH_DS5100; prom_init_kn230(); break; case DS5000_200: /* DS5000 3max */ mips_machtype = MACH_DS5000_200; prom_init_kn02(); break; case DS5000_1XX: /* DS5000/100 3min */ mips_machtype = MACH_DS5000_1XX; prom_init_kn02xa(); break; case DS5000_2X0: /* DS5000/240 3max+ or DS5900 bigmax */ mips_machtype = MACH_DS5000_2X0; prom_init_kn03(); if (!(ioasic_read(IO_REG_SIR) & KN03_IO_INR_3MAXP)) mips_machtype = MACH_DS5900; break; case DS5000_XX: /* Personal DS5000/xx maxine */ mips_machtype = MACH_DS5000_XX; prom_init_kn02xa(); break; case DS5800: /* DS5800 Isis */ mips_machtype = MACH_DS5800; break; case DS5400: /* DS5400 MIPSfair */ mips_machtype = MACH_DS5400; break; case DS5500: /* DS5500 MIPSfair-2 */ mips_machtype = MACH_DS5500; break; default: mips_machtype = MACH_DSUNKNOWN; break; } if (mips_machtype == MACH_DSUNKNOWN) printk("This is an %s, id is %x\n", dec_system_strings[mips_machtype], dec_systype); else printk("This is a %s\n", dec_system_strings[mips_machtype]); } |