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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 | /* * linux/arch/alpha/kernel/setup.c * * Copyright (C) 1995 Linus Torvalds */ /* * bootup setup stuff.. */ #include <linux/errno.h> #include <linux/sched.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/stddef.h> #include <linux/unistd.h> #include <linux/ptrace.h> #include <linux/malloc.h> #include <linux/ldt.h> #include <linux/user.h> #include <linux/a.out.h> #include <linux/tty.h> #include <linux/delay.h> #include <linux/config.h> /* CONFIG_ALPHA_LCA etc */ #include <asm/segment.h> #include <asm/pgtable.h> #include <asm/system.h> #include <asm/hwrpb.h> #include <asm/dma.h> #include <asm/io.h> struct hae hae = { 0, (unsigned long*) HAE_ADDRESS }; struct hwrpb_struct *hwrpb; unsigned char aux_device_present = 0xaa; /* * This is setup by the secondary bootstrap loader. Because * the zero page is zeroed out as soon as the vm system is * initialized, we need to copy things out into a more permanent * place. */ #define PARAM ZERO_PAGE #define COMMAND_LINE ((char*)(PARAM + 0x0000)) #define COMMAND_LINE_SIZE 256 static char command_line[COMMAND_LINE_SIZE] = { 0, }; char saved_command_line[COMMAND_LINE_SIZE]; /* * The format of "screen_info" is strange, and due to early * i386-setup code. This is just enough to make the console * code think we're on a VGA color display. */ struct screen_info screen_info = { 0, 25, /* orig-x, orig-y */ { 0, 0 }, /* unused */ 0, /* orig-video-page */ 0, /* orig-video-mode */ 80, /* orig-video-cols */ 0,0,0, /* ega_ax, ega_bx, ega_cx */ 25, /* orig-video-lines */ 1, /* orig-video-isVGA */ 16 /* orig-video-points */ }; /* * Initialize Programmable Interval Timers with standard values. Some * drivers depend on them being initialized (e.g., joystick driver). */ static void init_pit (void) { #if 0 /* * Leave refresh timer alone---nobody should depend on * a particular value anyway. */ outb(0x54, 0x43); /* counter 1: refresh timer */ outb(0x18, 0x41); #endif outb(0x36, 0x43); /* counter 0: system timer */ outb(0x00, 0x40); outb(0x00, 0x40); outb(0xb6, 0x43); /* counter 2: speaker */ outb(0x31, 0x42); outb(0x13, 0x42); } static unsigned long find_end_memory(void) { int i; unsigned long high = 0; struct memclust_struct * cluster; struct memdesc_struct * memdesc; memdesc = (struct memdesc_struct *) (INIT_HWRPB->mddt_offset + (unsigned long) INIT_HWRPB); cluster = memdesc->cluster; for (i = memdesc->numclusters ; i > 0; i--, cluster++) { unsigned long tmp; tmp = (cluster->start_pfn + cluster->numpages) << PAGE_SHIFT; if (tmp > high) high = tmp; } /* round it up to an even number of pages.. */ high = (high + PAGE_SIZE) & (PAGE_MASK*2); return PAGE_OFFSET + high; } void setup_arch(char **cmdline_p, unsigned long * memory_start_p, unsigned long * memory_end_p) { extern int _end; init_pit(); hwrpb = (struct hwrpb_struct*)(IDENT_ADDR + INIT_HWRPB->phys_addr); set_hae(hae.cache); /* sync HAE register w/hae_cache */ wrmces(0x7); /* reset enable correctable error reports */ ROOT_DEV = to_kdev_t(0x0802); /* sda2 */ command_line[COMMAND_LINE_SIZE - 1] = '\0'; /* Hack for Jensen... since we're restricted to 8 or 16 * chars for boot flags depending on the boot mode, * we need some shorthand. This should do for * installation. Later we'll add other abbreviations * as well... */ if (strcmp(COMMAND_LINE, "INSTALL") == 0) { strcpy(command_line, "root=/dev/fd0 load_ramdisk=1"); strcpy(saved_command_line, command_line); } else { strcpy(command_line, COMMAND_LINE); strcpy(saved_command_line, COMMAND_LINE); } printk("Command line: %s\n", command_line); *cmdline_p = command_line; *memory_start_p = (unsigned long) &_end; *memory_end_p = find_end_memory(); #if defined(CONFIG_ALPHA_LCA) *memory_start_p = lca_init(*memory_start_p, *memory_end_p); #elif defined(CONFIG_ALPHA_APECS) *memory_start_p = apecs_init(*memory_start_p, *memory_end_p); #elif defined(CONFIG_ALPHA_CIA) *memory_start_p = cia_init(*memory_start_p, *memory_end_p); #endif } /* * BUFFER is PAGE_SIZE bytes long. */ int get_cpuinfo(char *buffer) { const char *cpu_name[] = { "EV3", "EV4", "Unknown 1", "LCA4", "EV5", "EV45" }; # define SYSTYPE_NAME_BIAS 20 const char *systype_name[] = { "Cabriolet", "EB66P", "-18", "-17", "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9", "-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1", "0", "ADU", "Cobra", "Ruby", "Flamingo", "5", "Jensen", "Pelican", "8", "Sable", "AXPvme", "Noname", "Turbolaser", "Avanti", "Mustang", "Alcor", "16", "Mikasa", "18", "EB66", "EB64+", "21", "22", "23", "24", "25", "EB164" }; struct percpu_struct *cpu; unsigned int cpu_index; long sysname_index; extern struct unaligned_stat { unsigned long count, va, pc; } unaligned[2]; # define N(a) (sizeof(a)/sizeof(a[0])) cpu = (struct percpu_struct*)((char*)hwrpb + hwrpb->processor_offset); cpu_index = (unsigned) (cpu->type - 1); sysname_index = hwrpb->sys_type + SYSTYPE_NAME_BIAS; return sprintf(buffer, "cpu\t\t\t: Alpha\n" "cpu model\t\t: %s\n" "cpu variation\t\t: %ld\n" "cpu revision\t\t: %ld\n" "cpu serial number\t: %s\n" "system type\t\t: %s\n" "system variation\t: %ld\n" "system revision\t\t: %ld\n" "system serial number\t: %s\n" "cycle frequency [Hz]\t: %lu\n" "timer frequency [Hz]\t: %lu.%02lu\n" "page size [bytes]\t: %ld\n" "phys. address bits\t: %ld\n" "max. addr. space #\t: %ld\n" "BogoMIPS\t\t: %lu.%02lu\n" "kernel unaligned acc\t: %ld (pc=%lx,va=%lx)\n" "user unaligned acc\t: %ld (pc=%lx,va=%lx)\n", (cpu_index < N(cpu_name) ? cpu_name[cpu_index] : "Unknown"), cpu->variation, cpu->revision, (char*)cpu->serial_no, (sysname_index < N(systype_name) ? systype_name[sysname_index] : "Unknown"), hwrpb->sys_variation, hwrpb->sys_revision, (char*)hwrpb->ssn, hwrpb->cycle_freq, hwrpb->intr_freq / 4096, (100 * hwrpb->intr_freq / 4096) % 100, hwrpb->pagesize, hwrpb->pa_bits, hwrpb->max_asn, loops_per_sec / 500000, (loops_per_sec / 5000) % 100, unaligned[0].count, unaligned[0].pc, unaligned[0].va, unaligned[1].count, unaligned[1].pc, unaligned[1].va); # undef N } |