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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 | /* * Copyright (C) 2000, 2001 Broadcom Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* * Setup code for the SWARM board */ #include <linux/spinlock.h> #include <linux/mm.h> #include <linux/bootmem.h> #include <linux/blk.h> #include <linux/init.h> #include <linux/ide.h> #include <linux/console.h> #include <asm/irq.h> #include <asm/io.h> #include <asm/bootinfo.h> #include <asm/mipsregs.h> #include <asm/reboot.h> #include <asm/time.h> #include <asm/traps.h> #include <asm/sibyte/sb1250.h> #include <asm/sibyte/sb1250_regs.h> #include <asm/sibyte/sb1250_genbus.h> #include <asm/sibyte/64bit.h> #include <asm/sibyte/board.h> extern struct rtc_ops *rtc_ops; extern struct rtc_ops swarm_rtc_ops; #ifdef CONFIG_BLK_DEV_IDE extern struct ide_ops sibyte_ide_ops; #endif extern void sb1250_setup(void); extern int xicor_probe(void); extern int xicor_set_time(unsigned long); extern unsigned long xicor_get_time(void); extern int m41t81_probe(void); extern int m41t81_set_time(unsigned long); extern unsigned long m41t81_get_time(void); const char *get_system_type(void) { return "SiByte " SIBYTE_BOARD_NAME; } void __init swarm_timer_setup(struct irqaction *irq) { /* * we don't set up irqaction, because we will deliver timer * interrupts through low-level (direct) meachanism. */ /* We only need to setup the generic timer */ sb1250_time_init(); } int swarm_be_handler(struct pt_regs *regs, int is_fixup) { if (!is_fixup && (regs->cp0_cause & 4)) { /* Data bus error - print PA */ #ifdef CONFIG_MIPS64 printk("DBE physical address: %010lx\n", __read_64bit_c0_register($26, 1)); #else printk("DBE physical address: %010llx\n", __read_64bit_c0_split($26, 1)); #endif } return (is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL); } void __init swarm_setup(void) { extern int panic_timeout; sb1250_setup(); panic_timeout = 5; /* For debug. */ board_timer_setup = swarm_timer_setup; board_be_handler = swarm_be_handler; if (xicor_probe()) { printk("swarm setup: Xicor 1241 RTC detected.\n"); rtc_get_time = xicor_get_time; rtc_set_time = xicor_set_time; } if (m41t81_probe()) { printk("swarm setup: M41T81 RTC detected.\n"); rtc_get_time = m41t81_get_time; rtc_set_time = m41t81_set_time; } printk("This kernel optimized for " #ifdef CONFIG_SIMULATION "simulation" #else "board" #endif " runs " #ifdef CONFIG_SIBYTE_CFE "with" #else "without" #endif " CFE\n"); #ifdef CONFIG_BLK_DEV_IDE ide_ops = &sibyte_ide_ops; #endif #ifdef CONFIG_VT #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; #endif screen_info = (struct screen_info) { 0, 0, /* orig-x, orig-y */ 0, /* unused */ 52, /* orig_video_page */ 3, /* orig_video_mode */ 80, /* orig_video_cols */ 4626, 3, 9, /* unused, ega_bx, unused */ 25, /* orig_video_lines */ 0x22, /* orig_video_isVGA */ 16 /* orig_video_points */ }; /* XXXKW for CFE, get lines/cols from environment */ #endif } #ifdef LEDS_PHYS #ifdef CONFIG_SIBYTE_CARMEL /* XXXKW need to detect Monterey/LittleSur/etc */ #undef LEDS_PHYS #define LEDS_PHYS MLEDS_PHYS #endif #define setled(index, c) \ ((unsigned char *)(LEDS_PHYS|IO_SPACE_BASE|0x20))[(3-(index))<<3] = (c) void setleds(char *str) { int i; for (i = 0; i < 4; i++) { if (!str[i]) { setled(i, ' '); } else { setled(i, str[i]); } } } #endif |