forked from Minki/linux
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
|
/* $Id: setup.c,v 1.5 2003/08/04 01:51:58 lethal Exp $
|
||
|
|
*
|
||
|
|
* arch/sh/kernel/setup_cqreek.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2000 Niibe Yutaka
|
||
|
|
*
|
||
|
|
* CqREEK IDE/ISA Bridge Support.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/irq.h>
|
||
|
|
|
||
|
|
#include <asm/mach/cqreek.h>
|
||
|
|
#include <asm/machvec.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/io_generic.h>
|
||
|
|
#include <asm/irq.h>
|
||
|
|
#include <asm/rtc.h>
|
||
|
|
|
||
|
|
#define IDE_OFFSET 0xA4000000UL
|
||
|
|
#define ISA_OFFSET 0xA4A00000UL
|
||
|
|
|
||
|
|
const char *get_system_type(void)
|
||
|
|
{
|
||
|
|
return "CqREEK";
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned long cqreek_port2addr(unsigned long port)
|
||
|
|
{
|
||
|
|
if (0x0000<=port && port<=0x0040)
|
||
|
|
return IDE_OFFSET + port;
|
||
|
|
if ((0x01f0<=port && port<=0x01f7) || port == 0x03f6)
|
||
|
|
return IDE_OFFSET + port;
|
||
|
|
|
||
|
|
return ISA_OFFSET + port;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The Machine Vector
|
||
|
|
*/
|
||
|
|
struct sh_machine_vector mv_cqreek __initmv = {
|
||
|
|
#if defined(CONFIG_CPU_SH4)
|
||
|
|
.mv_nr_irqs = 48,
|
||
|
|
#elif defined(CONFIG_CPU_SUBTYPE_SH7708)
|
||
|
|
.mv_nr_irqs = 32,
|
||
|
|
#elif defined(CONFIG_CPU_SUBTYPE_SH7709)
|
||
|
|
.mv_nr_irqs = 61,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
.mv_init_irq = init_cqreek_IRQ,
|
||
|
|
|
||
|
|
.mv_isa_port2addr = cqreek_port2addr,
|
||
|
|
};
|
||
|
|
ALIAS_MV(cqreek)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Initialize the board
|
||
|
|
*/
|
||
|
|
void __init platform_setup(void)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
/* udelay is not available at setup time yet... */
|
||
|
|
#define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0)
|
||
|
|
|
||
|
|
if ((inw (BRIDGE_FEATURE) & 1)) { /* We have IDE interface */
|
||
|
|
outw_p(0, BRIDGE_IDE_INTR_LVL);
|
||
|
|
outw_p(0, BRIDGE_IDE_INTR_MASK);
|
||
|
|
|
||
|
|
outw_p(0, BRIDGE_IDE_CTRL);
|
||
|
|
DELAY();
|
||
|
|
|
||
|
|
outw_p(0x8000, BRIDGE_IDE_CTRL);
|
||
|
|
DELAY();
|
||
|
|
|
||
|
|
outw_p(0xffff, BRIDGE_IDE_INTR_STAT); /* Clear interrupt status */
|
||
|
|
outw_p(0x0f-14, BRIDGE_IDE_INTR_LVL); /* Use 14 IPR */
|
||
|
|
outw_p(1, BRIDGE_IDE_INTR_MASK); /* Enable interrupt */
|
||
|
|
cqreek_has_ide=1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((inw (BRIDGE_FEATURE) & 2)) { /* We have ISA interface */
|
||
|
|
outw_p(0, BRIDGE_ISA_INTR_LVL);
|
||
|
|
outw_p(0, BRIDGE_ISA_INTR_MASK);
|
||
|
|
|
||
|
|
outw_p(0, BRIDGE_ISA_CTRL);
|
||
|
|
DELAY();
|
||
|
|
outw_p(0x8000, BRIDGE_ISA_CTRL);
|
||
|
|
DELAY();
|
||
|
|
|
||
|
|
outw_p(0xffff, BRIDGE_ISA_INTR_STAT); /* Clear interrupt status */
|
||
|
|
outw_p(0x0f-10, BRIDGE_ISA_INTR_LVL); /* Use 10 IPR */
|
||
|
|
outw_p(0xfff8, BRIDGE_ISA_INTR_MASK); /* Enable interrupt */
|
||
|
|
cqreek_has_isa=1;
|
||
|
|
}
|
||
|
|
|
||
|
|
printk(KERN_INFO "CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide, cqreek_has_isa);
|
||
|
|
}
|
||
|
|
|