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/* $Id: setup.c,v 1.9 1998/05/07 02:57:21 ralf Exp $
*
* setup.c: SGI specific setup, including init of the feature struct.
*
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
* Copyright (C) 1997, 1998 Ralf Baechle (ralf@gnu.org)
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mc146818rtc.h>
#include <asm/addrspace.h>
#include <asm/bcache.h>
#include <asm/keyboard.h>
#include <asm/irq.h>
#include <asm/reboot.h>
#include <asm/vector.h>
#include <asm/sgialib.h>
#include <asm/sgi.h>
#include <asm/sgimc.h>
#include <asm/sgihpc.h>
#include <asm/sgint23.h>
extern int serial_console; /* in console.c, of course */
extern void sgi_machine_restart(char *command);
extern void sgi_machine_halt(void);
extern void sgi_machine_power_off(void);
extern struct rtc_ops indy_rtc_ops;
static volatile struct hpc_keyb *sgi_kh = (struct hpc_keyb *) (KSEG1 + 0x1fbd9800 + 64);
#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */
static unsigned char sgi_read_input(void)
{
return sgi_kh->data;
}
static void sgi_write_output(unsigned char val)
{
int status;
do {
status = sgi_kh->command;
} while (status & KBD_STAT_IBF);
sgi_kh->data = val;
}
static void sgi_write_command(unsigned char val)
{
int status;
do {
status = sgi_kh->command;
} while (status & KBD_STAT_IBF);
sgi_kh->command = val;
}
static unsigned char sgi_read_status(void)
{
return sgi_kh->command;
}
__initfunc(static void sgi_keyboard_setup(void))
{
kbd_read_input = sgi_read_input;
kbd_write_output = sgi_write_output;
kbd_write_command = sgi_write_command;
kbd_read_status = sgi_read_status;
}
__initfunc(static void sgi_irq_setup(void))
{
sgint_init();
}
__initfunc(void sgi_setup(void))
{
char *ctype;
irq_setup = sgi_irq_setup;
keyboard_setup = sgi_keyboard_setup;
_machine_restart = sgi_machine_restart;
_machine_halt = sgi_machine_halt;
_machine_power_off = sgi_machine_power_off;
/* Init the INDY HPC I/O controller. Need to call this before
* fucking with the memory controller because it needs to know the
* boardID and whether this is a Guiness or a FullHouse machine.
*/
sgihpc_init();
/* Init INDY memory controller. */
sgimc_init();
/* Now enable boardcaches, if any. */
indy_sc_init();
/* ARCS console environment variable is set to "g?" for
* graphics console, it is set to "d" for the first serial
* line and "d2" for the second serial line.
*/
ctype = prom_getenv("console");
serial_console = 0;
if(*ctype == 'd') {
if(*(ctype+1)=='2')
serial_console = 1;
else
serial_console = 2;
if(!serial_console) {
prom_printf("Weird console env setting %s\n", ctype);
prom_printf("Press a key to reboot.\n");
prom_getchar();
prom_imode();
}
}
rtc_ops = &indy_rtc_ops;
}
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