forked from Minki/linux
185 lines
4.7 KiB
C
185 lines
4.7 KiB
C
/*
|
|
* Carsten Langgaard, carstenl@mips.com
|
|
* Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved.
|
|
*
|
|
* Thomas Horsten <thh@lasat.com>
|
|
* Copyright (C) 2000 LASAT Networks A/S.
|
|
*
|
|
* Brian Murphy <brian@murphy.dk>
|
|
*
|
|
* 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.
|
|
*
|
|
* Lasat specific setup.
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/serial_core.h>
|
|
|
|
#include <asm/time.h>
|
|
#include <asm/cpu.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/serial.h>
|
|
#include <asm/lasat/lasat.h>
|
|
#include <asm/lasat/serial.h>
|
|
|
|
#ifdef CONFIG_PICVUE
|
|
#include <linux/notifier.h>
|
|
#endif
|
|
|
|
#include "ds1603.h"
|
|
#include <asm/lasat/ds1603.h>
|
|
#include <asm/lasat/picvue.h>
|
|
#include <asm/lasat/eeprom.h>
|
|
|
|
#include "prom.h"
|
|
|
|
int lasat_command_line = 0;
|
|
void lasatint_init(void);
|
|
|
|
extern void lasat_reboot_setup(void);
|
|
extern void pcisetup(void);
|
|
extern void edhac_init(void *, void *, void *);
|
|
extern void addrflt_init(void);
|
|
|
|
struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
|
|
{(void *)KSEG1ADDR(0x1c840000), (void *)KSEG1ADDR(0x1c800000), 2},
|
|
{(void *)KSEG1ADDR(0x11080000), (void *)KSEG1ADDR(0x11000000), 6}
|
|
};
|
|
|
|
struct lasat_misc *lasat_misc = NULL;
|
|
|
|
#ifdef CONFIG_DS1603
|
|
static struct ds_defs ds_defs[N_MACHTYPES] = {
|
|
{ (void *)DS1603_REG_100, (void *)DS1603_REG_100,
|
|
DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
|
|
DS1603_DATA_SHIFT_100, 0, 0 },
|
|
{ (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
|
|
DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
|
|
DS1603_DATA_READ_SHIFT_200, 1, 2000 }
|
|
};
|
|
#endif
|
|
|
|
#ifdef CONFIG_PICVUE
|
|
#include "picvue.h"
|
|
static struct pvc_defs pvc_defs[N_MACHTYPES] = {
|
|
{ (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
|
|
PVC_E_100, PVC_RW_100, PVC_RS_100 },
|
|
{ (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
|
|
PVC_E_200, PVC_RW_200, PVC_RS_200 }
|
|
};
|
|
#endif
|
|
|
|
static int lasat_panic_display(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
#ifdef CONFIG_PICVUE
|
|
unsigned char *string = ptr;
|
|
if (string == NULL)
|
|
string = "Kernel Panic";
|
|
pvc_dump_string(string);
|
|
#endif
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static int lasat_panic_prom_monitor(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
prom_monitor();
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block lasat_panic_block[] =
|
|
{
|
|
{ lasat_panic_display, NULL, INT_MAX },
|
|
{ lasat_panic_prom_monitor, NULL, INT_MIN }
|
|
};
|
|
|
|
static void lasat_time_init(void)
|
|
{
|
|
mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2;
|
|
}
|
|
|
|
void __init plat_timer_setup(struct irqaction *irq)
|
|
{
|
|
write_c0_compare( read_c0_count() + mips_hpt_frequency / HZ);
|
|
change_c0_status(ST0_IM, IE_IRQ0 | IE_IRQ5);
|
|
}
|
|
|
|
#define DYNAMIC_SERIAL_INIT
|
|
#ifdef DYNAMIC_SERIAL_INIT
|
|
void __init serial_init(void)
|
|
{
|
|
#ifdef CONFIG_SERIAL_8250
|
|
struct uart_port s;
|
|
|
|
memset(&s, 0, sizeof(s));
|
|
|
|
s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
|
|
s.iotype = UPIO_MEM;
|
|
|
|
if (mips_machtype == MACH_LASAT_100) {
|
|
s.uartclk = LASAT_BASE_BAUD_100 * 16;
|
|
s.irq = LASATINT_UART_100;
|
|
s.regshift = LASAT_UART_REGS_SHIFT_100;
|
|
s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_100);
|
|
} else {
|
|
s.uartclk = LASAT_BASE_BAUD_200 * 16;
|
|
s.irq = LASATINT_UART_200;
|
|
s.regshift = LASAT_UART_REGS_SHIFT_200;
|
|
s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_200);
|
|
}
|
|
|
|
if (early_serial_setup(&s) != 0)
|
|
printk(KERN_ERR "Serial setup failed!\n");
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
int i;
|
|
lasat_misc = &lasat_misc_info[mips_machtype];
|
|
#ifdef CONFIG_PICVUE
|
|
picvue = &pvc_defs[mips_machtype];
|
|
#endif
|
|
|
|
/* Set up panic notifier */
|
|
for (i = 0; i < sizeof(lasat_panic_block) / sizeof(struct notifier_block); i++)
|
|
atomic_notifier_chain_register(&panic_notifier_list,
|
|
&lasat_panic_block[i]);
|
|
|
|
lasat_reboot_setup();
|
|
|
|
board_time_init = lasat_time_init;
|
|
|
|
#ifdef CONFIG_DS1603
|
|
ds1603 = &ds_defs[mips_machtype];
|
|
rtc_mips_get_time = ds1603_read;
|
|
rtc_mips_set_time = ds1603_set;
|
|
#endif
|
|
|
|
#ifdef DYNAMIC_SERIAL_INIT
|
|
serial_init();
|
|
#endif
|
|
/* Switch from prom exception handler to normal mode */
|
|
change_c0_status(ST0_BEV,0);
|
|
|
|
prom_printf("Lasat specific initialization complete\n");
|
|
}
|