atlas_setup.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:4k
- /*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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.
- *
- * Atlas specific setup.
- */
- #include <linux/config.h>
- #include <linux/init.h>
- #include <linux/sched.h>
- #include <linux/mc146818rtc.h>
- #include <linux/ioport.h>
- #include <asm/cpu.h>
- #include <asm/bootinfo.h>
- #include <asm/irq.h>
- #include <asm/mips-boards/generic.h>
- #include <asm/mips-boards/prom.h>
- #include <asm/mips-boards/atlasint.h>
- #include <asm/gt64120.h>
- #include <asm/time.h>
- #include <asm/traps.h>
- #if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_PROM_CONSOLE)
- extern void console_setup(char *, int *);
- char serial_console[20];
- #endif
- #ifdef CONFIG_REMOTE_DEBUG
- extern void rs_kgdb_hook(int);
- extern void saa9730_kgdb_hook(void);
- extern void breakpoint(void);
- int remote_debug = 0;
- #endif
- extern struct rtc_ops atlas_rtc_ops;
- extern void mips_reboot_setup(void);
- const char *get_system_type(void)
- {
- return "MIPS Atlas";
- }
- void __init bus_error_init(void)
- {
- }
- extern void mips_time_init(void);
- extern void mips_timer_setup(struct irqaction *irq);
- extern unsigned long mips_rtc_get_time(void);
- void __init atlas_setup(void)
- {
- #ifdef CONFIG_REMOTE_DEBUG
- int rs_putDebugChar(char);
- char rs_getDebugChar(void);
- int saa9730_putDebugChar(char);
- char saa9730_getDebugChar(void);
- extern int (*generic_putDebugChar)(char);
- extern char (*generic_getDebugChar)(void);
- #endif
- char *argptr;
- ioport_resource.end = 0x7fffffff;
- #ifdef CONFIG_SERIAL_CONSOLE
- argptr = prom_getcmdline();
- if ((argptr = strstr(argptr, "console=ttyS0")) == NULL) {
- int i = 0;
- char *s = prom_getenv("modetty0");
- while(s[i] >= '0' && s[i] <= '9')
- i++;
- strcpy(serial_console, "ttyS0,");
- strncpy(serial_console + 6, s, i);
- prom_printf("Config serial console: %sn", serial_console);
- console_setup(serial_console, NULL);
- }
- #endif
- #ifdef CONFIG_REMOTE_DEBUG
- argptr = prom_getcmdline();
- if ((argptr = strstr(argptr, "kgdb=ttyS")) != NULL) {
- int line;
- argptr += strlen("kgdb=ttyS");
- if (*argptr != '0' && *argptr != '1')
- printk("KGDB: Uknown serial line /dev/ttyS%c, "
- "falling back to /dev/ttyS1n", *argptr);
- line = *argptr == '0' ? 0 : 1;
- printk("KGDB: Using serial line /dev/ttyS%d for sessionn",
- line ? 1 : 0);
- if(line == 0) {
- rs_kgdb_hook(line);
- generic_putDebugChar = rs_putDebugChar;
- generic_getDebugChar = rs_getDebugChar;
- } else {
- saa9730_kgdb_hook();
- generic_putDebugChar = saa9730_putDebugChar;
- generic_getDebugChar = saa9730_getDebugChar;
- }
- prom_printf("KGDB: Using serial line /dev/ttyS%d for session, "
- "please connect your debuggern", line ? 1 : 0);
- remote_debug = 1;
- /* Breakpoints and stuff are in atlas_irq_setup() */
- }
- #endif
- argptr = prom_getcmdline();
- if ((argptr = strstr(argptr, "nofpu")) != NULL)
- mips_cpu.options &= ~MIPS_CPU_FPU;
- rtc_ops = &atlas_rtc_ops;
- board_time_init = mips_time_init;
- board_timer_setup = mips_timer_setup;
- rtc_get_time = mips_rtc_get_time;
- mips_reboot_setup();
- }