1/* 2 * setup.c 3 * 4 * Carsten Langgaard, carstenl@mips.com 5 * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved. 6 * 7 * Thomas Horsten <thh@lasat.com> 8 * Copyright (C) 2000 LASAT Networks A/S. 9 * 10 * ######################################################################## 11 * 12 * This program is free software; you can distribute it and/or modify it 13 * under the terms of the GNU General Public License (Version 2) as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope it will be useful, but WITHOUT 17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 * for more details. 20 * 21 * You should have received a copy of the GNU General Public License along 22 * with this program; if not, write to the Free Software Foundation, Inc., 23 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. 24 * 25 * ######################################################################## 26 * 27 * Lasat specific setup. 28 */ 29#include <linux/config.h> 30#include <linux/init.h> 31#include <linux/sched.h> 32#include <linux/pci.h> 33#include <linux/ide.h> 34 35#include <linux/interrupt.h> 36#include <asm/time.h> 37 38#include <asm/cpu.h> 39#include <asm/bootinfo.h> 40#include <asm/irq.h> 41#include <asm/lasat/lasat.h> 42 43#include <asm/lasat/lasat_mtd.h> 44#include <linux/serial.h> 45#include <asm/serial.h> 46#include <asm/lasat/serial.h> 47 48#if CONFIG_PICVUE 49#include <linux/notifier.h> 50#endif 51 52#include "ds1603.h" 53#include "at93c.h" 54#include <asm/lasat/ds1603.h> 55#include <asm/lasat/picvue.h> 56#include <asm/lasat/eeprom.h> 57 58int lasat_command_line = 0; 59void lasatint_init(void); 60 61#ifdef CONFIG_BLK_DEV_IDE 62extern struct ide_ops std_ide_ops; 63extern struct ide_ops *ide_ops; 64#endif 65 66extern char arcs_cmdline[CL_SIZE]; 67 68extern void lasat_reboot_setup(void); 69extern void pcisetup(void); 70extern void edhac_init(void *, void *, void *); 71extern void addrflt_init(void); 72 73void __init bus_error_init(void) { /* nothing */ } 74 75struct lasat_misc lasat_misc_info[N_MACHTYPES] = { 76 {(void *)KSEG1ADDR(0x1c840000), (void *)KSEG1ADDR(0x1c800000), 2}, 77 {(void *)KSEG1ADDR(0x11080000), (void *)KSEG1ADDR(0x11000000), 6} 78}; 79 80struct lasat_misc *lasat_misc = NULL; 81 82#ifdef CONFIG_DS1603 83static struct ds_defs ds_defs[N_MACHTYPES] = { 84 { (void *)DS1603_REG_100, (void *)DS1603_REG_100, 85 DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100, 86 DS1603_DATA_SHIFT_100, 0, 0 }, 87 { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200, 88 DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200, 89 DS1603_DATA_READ_SHIFT_200, 1, 2000 } 90}; 91#endif 92 93#ifdef CONFIG_PICVUE 94#include "picvue.h" 95static struct pvc_defs pvc_defs[N_MACHTYPES] = { 96 { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100, 97 PVC_E_100, PVC_RW_100, PVC_RS_100 }, 98 { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200, 99 PVC_E_200, PVC_RW_200, PVC_RS_200 } 100}; 101 102 103static int lasat_panic_event(struct notifier_block *this, 104 unsigned long event, void *ptr) 105{ 106 unsigned char *string = ptr; 107 if (string == NULL) 108 string = "Kernel Panic"; 109 pvc_write_string(string, 0, 0); 110 if (strlen(string) > PVC_VISIBLE_CHARS) 111 pvc_write_string(&string[PVC_VISIBLE_CHARS], 0, 1); 112 return NOTIFY_DONE; 113} 114 115static struct notifier_block lasat_panic_block = { 116 lasat_panic_event, 117 NULL, 118 INT_MAX /* try to do it first */ 119}; 120#endif 121 122static int lasat_ide_default_irq(ide_ioreg_t base) { 123 return 0; 124} 125 126static ide_ioreg_t lasat_ide_default_io_base(int index) { 127 return 0; 128} 129 130static void lasat_time_init(void) 131{ 132 mips_counter_frequency = lasat_board_info.li_cpu_hz / 2; 133} 134 135static void lasat_timer_setup(struct irqaction *irq) 136{ 137 138 write_c0_compare( 139 read_c0_count() + 140 mips_counter_frequency / HZ); 141 change_c0_status(ST0_IM, IE_IRQ0 | IE_IRQ5); 142} 143 144#define MIPS_CPU_TIMER_IRQ 7 145asmlinkage void lasat_timer_interrupt(struct pt_regs *regs) 146{ 147 ll_timer_interrupt(MIPS_CPU_TIMER_IRQ, regs); 148} 149 150void __init serial_init(void) 151{ 152#ifdef CONFIG_SERIAL 153 struct serial_struct s; 154 155 memset(&s, 0, sizeof(s)); 156 157 s.flags = STD_COM_FLAGS; 158 s.io_type = SERIAL_IO_MEM; 159 160 if (mips_machtype == MACH_LASAT_100) { 161 s.baud_base = LASAT_BASE_BAUD_100; 162 s.irq = LASATINT_UART_100; 163 s.iomem_reg_shift = LASAT_UART_REGS_SHIFT_100; 164 s.iomem_base = (u8 *)KSEG1ADDR(LASAT_UART_REGS_BASE_100); 165 } else { 166 s.baud_base = LASAT_BASE_BAUD_200; 167 s.irq = LASATINT_UART_200; 168 s.iomem_reg_shift = LASAT_UART_REGS_SHIFT_200; 169 s.iomem_base = (u8 *)KSEG1ADDR(LASAT_UART_REGS_BASE_200); 170 } 171 172 if (early_serial_setup(&s) != 0) 173 printk(KERN_ERR "Serial setup failed!\n"); 174#endif 175} 176 177void __init lasat_setup(void) 178{ 179 lasat_misc = &lasat_misc_info[mips_machtype]; 180#ifdef CONFIG_PICVUE 181 picvue = &pvc_defs[mips_machtype]; 182 /* Set up panic notifier */ 183 184 notifier_chain_register(&panic_notifier_list, &lasat_panic_block); 185#endif 186 187#ifdef CONFIG_BLK_DEV_IDE 188 ide_ops = &std_ide_ops; 189 ide_ops->ide_default_irq = &lasat_ide_default_irq; 190 ide_ops->ide_default_io_base = &lasat_ide_default_io_base; 191#endif 192 193 lasat_reboot_setup(); 194 195 board_time_init = lasat_time_init; 196 board_timer_setup = lasat_timer_setup; 197 198#ifdef CONFIG_DS1603 199 ds1603 = &ds_defs[mips_machtype]; 200 rtc_get_time = ds1603_read; 201 rtc_set_time = ds1603_set; 202#endif 203 204 serial_init(); 205 206 /* Switch from prom exception handler to normal mode */ 207 change_c0_status(ST0_BEV,0); 208} 209 210#ifdef CONFIG_LASAT_SERVICE 211/* 212 * Called by init() (just before starting user space init program) 213 */ 214static int __init lasat_init(void) 215{ 216 /* This is where we call service mode */ 217 lasat_service(); 218 for (;;) {} /* We should never get here */ 219 220 return 0; 221} 222 223__initcall(lasat_init); 224#endif 225 226unsigned long lasat_flash_partition_start(int partno) 227{ 228 unsigned long dst; 229 230 switch (partno) { 231 case LASAT_MTD_BOOTLOADER: 232 dst = lasat_board_info.li_flash_service_base; 233 break; 234 case LASAT_MTD_SERVICE: 235 dst = lasat_board_info.li_flash_service_base + BOOTLOADER_SIZE; 236 break; 237 case LASAT_MTD_NORMAL: 238 dst = lasat_board_info.li_flash_normal_base; 239 break; 240 case LASAT_MTD_FS: 241 dst = lasat_board_info.li_flash_fs_base; 242 break; 243 case LASAT_MTD_CONFIG: 244 dst = lasat_board_info.li_flash_cfg_base; 245 break; 246 default: 247 dst = 0; 248 break; 249 } 250 251 return dst; 252} 253 254unsigned long lasat_flash_partition_size(int partno) 255{ 256 unsigned long size; 257 258 switch (partno) { 259 case LASAT_MTD_BOOTLOADER: 260 size = BOOTLOADER_SIZE; 261 break; 262 case LASAT_MTD_SERVICE: 263 size = lasat_board_info.li_flash_service_size - BOOTLOADER_SIZE; 264 break; 265 case LASAT_MTD_NORMAL: 266 size = lasat_board_info.li_flash_normal_size; 267 break; 268 case LASAT_MTD_FS: 269 size = lasat_board_info.li_flash_fs_size; 270 break; 271 case LASAT_MTD_CONFIG: 272 size = lasat_board_info.li_flash_cfg_size; 273 break; 274 default: 275 size = 0; 276 break; 277 } 278 279 return size; 280} 281