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/*
* 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.
*
* ########################################################################
*
* Malta specific setup, including init of the feature struct.
*
*/
#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/prom.h>
#include <asm/mips-boards/malta.h>
#include <asm/mips-boards/maltaint.h>
#ifdef CONFIG_BLK_DEV_IDE
#include <asm/ide.h>
#endif
#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;
static int kgdb_on_pci = 0;
#endif
#ifdef CONFIG_BLK_DEV_IDE
extern struct ide_ops std_ide_ops;
#endif
#ifdef CONFIG_BLK_DEV_FD
extern struct fd_ops std_fd_ops;
#endif
extern struct rtc_ops malta_rtc_ops;
extern void mips_reboot_setup(void);
static void __init malta_irq_setup(void)
{
maltaint_init();
#ifdef CONFIG_REMOTE_DEBUG
if (remote_debug && !kgdb_on_pci) {
set_debug_traps();
breakpoint();
}
#endif
}
void __init malta_setup(void)
{
#ifdef CONFIG_REMOTE_DEBUG
int rs_putDebugChar(char);
char rs_getDebugChar(void);
extern int (*putDebugChar)(char);
extern char (*getDebugChar)(void);
#endif
char *argptr;
irq_setup = malta_irq_setup;
mips_io_port_base = MALTA_PORT_BASE;
request_region(0x00,0x20,"dma1");
request_region(0x40,0x20,"timer");
request_region(0x80,0x10,"dma page reg");
request_region(0xc0,0x20,"dma2");
/*
* 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=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: %s\n", 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/ttyS1\n", *argptr);
line = *argptr == '0' ? 0 : 1;
printk("KGDB: Using serial line /dev/ttyS%d for session\n",
line ? 1 : 0);
rs_kgdb_hook(line);
putDebugChar = rs_putDebugChar;
getDebugChar = rs_getDebugChar;
prom_printf("KGDB: Using serial line /dev/ttyS%d for session, "
"please connect your debugger\n", line ? 1 : 0);
remote_debug = 1;
/* Breakpoints and stuff are in malta_irq_setup() */
}
#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
mips_reboot_setup();
}
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