setup.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:4k
- /*
- *
- * BRIEF MODULE DESCRIPTION
- * Au1000-based board setup.
- *
- * Copyright 2000 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ppopov@mvista.com or source@mvista.com
- *
- * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- #include <linux/config.h>
- #include <linux/init.h>
- #include <linux/sched.h>
- #include <linux/ioport.h>
- #include <linux/console.h>
- #include <linux/mc146818rtc.h>
- #include <asm/cpu.h>
- #include <asm/bootinfo.h>
- #include <asm/irq.h>
- #include <asm/mipsregs.h>
- #include <asm/reboot.h>
- #include <asm/au1000.h>
- #if defined(CONFIG_AU1000_SERIAL_CONSOLE)
- extern void console_setup(char *, int *);
- char serial_console[20];
- #endif
- void (*__wbflush) (void);
- extern struct rtc_ops no_rtc_ops;
- extern char * __init prom_getcmdline(void);
- extern void au1000_restart(void);
- extern void au1000_halt(void);
- extern void au1000_power_off(void);
- struct {
- struct resource ram;
- struct resource io;
- struct resource sram;
- struct resource flash;
- struct resource boot;
- struct resource pcmcia;
- struct resource lcd;
- } au1000_resources = {
- { "RAM", 0, 0x3FFFFFF, IORESOURCE_MEM },
- { "I/O", 0x10000000, 0x119FFFFF },
- { "SRAM", 0x1e000000, 0x1E03FFFF },
- { "System Flash", 0x1F800000, 0x1FBFFFFF },
- { "Boot ROM", 0x1FC00000, 0x1FFFFFFF },
- { "PCMCIA", 0x20000000, 0x27FFFFFF },
- { "LCD", 0x60000000, 0x603FFFFF },
- };
- void au1000_wbflush(void)
- {
- __asm__ volatile ("sync");
- }
- void __init au1000_setup(void)
- {
- char *argptr;
- argptr = prom_getcmdline();
- #ifdef CONFIG_AU1000_SERIAL_CONSOLE
- if ((argptr = strstr(argptr, "console=ttyS0")) == NULL) {
- argptr = prom_getcmdline();
- strcat(argptr, " console=ttyS0,115200");
- }
- #endif
- //set_cp0_status(ST0_FR,0);
- rtc_ops = &no_rtc_ops;
- __wbflush = au1000_wbflush;
- _machine_restart = au1000_restart;
- _machine_halt = au1000_halt;
- _machine_power_off = au1000_power_off;
- /*
- * IO/MEM resources.
- */
- mips_io_port_base = KSEG1;
- ioport_resource.start = au1000_resources.io.start;
- ioport_resource.end = au1000_resources.lcd.end;
- #ifdef CONFIG_BLK_DEV_INITRD
- ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
- #endif
- outl(PC_CNTRL_E0 | PC_CNTRL_EN0 | PC_CNTRL_EN0, PC_COUNTER_CNTRL);
- while (inl(PC_COUNTER_CNTRL) & PC_CNTRL_T0S);
- outl(0x8000-1, PC0_TRIM);
- printk("Alchemy Semi PB1000 Boardn");
- printk("Au1000/PB1000 port (C) 2001 MontaVista Software, Inc. (source@mvista.com)n");
- }