malta_setup.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:4k
- /*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 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.
- */
- #include <linux/config.h>
- #include <linux/init.h>
- #include <linux/sched.h>
- #include <linux/mc146818rtc.h>
- #include <linux/ioport.h>
- #include <linux/pci.h>
- #ifdef CONFIG_BLK_DEV_IDE
- #include <linux/ide.h>
- #endif
- #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/malta.h>
- #include <asm/mips-boards/maltaint.h>
- #ifdef CONFIG_BLK_DEV_FD
- #include <asm/floppy.h>
- #endif
- #include <asm/dma.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 set_debug_traps(void);
- extern void rs_kgdb_hook(int);
- extern void breakpoint(void);
- static int remote_debug = 0;
- #endif
- extern struct ide_ops std_ide_ops;
- extern struct fd_ops std_fd_ops;
- extern struct rtc_ops malta_rtc_ops;
- extern struct kbd_ops std_kbd_ops;
- extern void mips_reboot_setup(void);
- struct resource standard_io_resources[] = {
- { "dma1", 0x00, 0x1f, IORESOURCE_BUSY },
- { "timer", 0x40, 0x5f, IORESOURCE_BUSY },
- { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY },
- { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY },
- };
- #define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource))
- void __init malta_setup(void)
- {
- #ifdef CONFIG_REMOTE_DEBUG
- int rs_putDebugChar(char);
- char rs_getDebugChar(void);
- extern int (*generic_putDebugChar)(char);
- extern char (*generic_getDebugChar)(void);
- #endif
- char *argptr;
- int i;
- /* Request I/O space for devices used on the Malta board. */
- for (i = 0; i < STANDARD_IO_RESOURCES; i++)
- request_resource(&ioport_resource, standard_io_resources+i);
- /*
- * Enable DMA channel 4 (cascade channel) in the PIIX4 south bridge.
- */
- enable_dma(4);
- #ifdef CONFIG_SERIAL_CONSOLE
- argptr = prom_getcmdline();
- if ((argptr = strstr(argptr, "console=")) == NULL) {
- argptr = prom_getcmdline();
- strcat(argptr, " console=ttyS0,38400");
- }
- #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);
- rs_kgdb_hook(line);
- generic_putDebugChar = rs_putDebugChar;
- generic_getDebugChar = rs_getDebugChar;
- prom_printf("KGDB: Using serial line /dev/ttyS%d for session, "
- "please connect your debuggern", line ? 1 : 0);
- remote_debug = 1;
- /* Breakpoints are in init_IRQ() */
- }
- #endif
- argptr = prom_getcmdline();
- if ((argptr = strstr(argptr, "nofpu")) != NULL)
- mips_cpu.options &= ~MIPS_CPU_FPU;
-
- rtc_ops = &malta_rtc_ops;
- #ifdef CONFIG_BLK_DEV_IDE
- ide_ops = &std_ide_ops;
- #endif
- #ifdef CONFIG_BLK_DEV_FD
- fd_ops = &std_fd_ops;
- #endif
- #ifdef CONFIG_PC_KEYB
- kbd_ops = &std_kbd_ops;
- #endif
- mips_reboot_setup();
- }