102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
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/*
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* Setup pointers to hardware-dependent routines.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
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* Copyright (C) 2001 MIPS Technologies, Inc.
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*/
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#include <linux/config.h>
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#include <linux/eisa.h>
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#include <linux/hdreg.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <linux/mm.h>
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#include <linux/console.h>
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#include <linux/fb.h>
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#include <linux/ide.h>
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#include <asm/bootinfo.h>
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#include <asm/irq.h>
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#include <asm/jazz.h>
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#include <asm/jazzdma.h>
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#include <asm/ptrace.h>
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#include <asm/reboot.h>
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#include <asm/io.h>
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#include <asm/pgtable.h>
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#include <asm/time.h>
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#include <asm/traps.h>
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extern asmlinkage void jazz_handle_int(void);
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extern void jazz_machine_restart(char *command);
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extern void jazz_machine_halt(void);
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extern void jazz_machine_power_off(void);
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static void __init jazz_time_init(struct irqaction *irq)
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{
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/* set the clock to 100 Hz */
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r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
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setup_irq(JAZZ_TIMER_IRQ, irq);
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}
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static struct resource jazz_io_resources[] = {
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{ "dma1", 0x00, 0x1f, IORESOURCE_BUSY },
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{ "timer", 0x40, 0x5f, IORESOURCE_BUSY },
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{ "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY },
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{ "dma2", 0xc0, 0xdf, IORESOURCE_BUSY },
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};
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static void __init jazz_setup(void)
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{
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int i;
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/* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
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add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K);
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/* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
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add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M);
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/* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
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add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M);
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set_io_port_base(JAZZ_PORT_BASE);
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#ifdef CONFIG_EISA
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if (mips_machtype == MACH_MIPS_MAGNUM_4000)
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EISA_bus = 1;
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#endif
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isa_slot_offset = 0xe3000000;
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/* request I/O space for devices used on all i[345]86 PCs */
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for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
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request_resource(&ioport_resource, jazz_io_resources + i);
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board_timer_setup = jazz_time_init;
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/* The RTC is outside the port address space */
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_machine_restart = jazz_machine_restart;
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_machine_halt = jazz_machine_halt;
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_machine_power_off = jazz_machine_power_off;
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#warning "Somebody should check if screen_info is ok for Jazz."
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screen_info = (struct screen_info) {
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0, 0, /* orig-x, orig-y */
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0, /* unused */
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0, /* orig_video_page */
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0, /* orig_video_mode */
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160, /* orig_video_cols */
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0, 0, 0, /* unused, ega_bx, unused */
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64, /* orig_video_lines */
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0, /* orig_video_isVGA */
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16 /* orig_video_points */
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};
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vdma_init();
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}
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early_initcall(jazz_setup);
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