1 /* 2 * Setup pointers to hardware-dependent routines. 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle 9 * Copyright (C) 2001 MIPS Technologies, Inc. 10 */ 11 #include <linux/config.h> 12 #include <linux/eisa.h> 13 #include <linux/hdreg.h> 14 #include <linux/init.h> 15 #include <linux/ioport.h> 16 #include <linux/sched.h> 17 #include <linux/interrupt.h> 18 #include <linux/mm.h> 19 #include <linux/console.h> 20 #include <linux/fb.h> 21 #include <linux/ide.h> 22 #include <asm/bootinfo.h> 23 #include <asm/irq.h> 24 #include <asm/jazz.h> 25 #include <asm/jazzdma.h> 26 #include <asm/ptrace.h> 27 #include <asm/reboot.h> 28 #include <asm/io.h> 29 #include <asm/pgtable.h> 30 #include <asm/time.h> 31 #include <asm/traps.h> 32 33 extern asmlinkage void jazz_handle_int(void); 34 35 extern void jazz_machine_restart(char *command); 36 extern void jazz_machine_halt(void); 37 extern void jazz_machine_power_off(void); 38 39 static void __init jazz_time_init(struct irqaction *irq) 40 { 41 /* set the clock to 100 Hz */ 42 r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9); 43 setup_irq(JAZZ_TIMER_IRQ, irq); 44 } 45 46 static struct resource jazz_io_resources[] = { 47 { "dma1", 0x00, 0x1f, IORESOURCE_BUSY }, 48 { "timer", 0x40, 0x5f, IORESOURCE_BUSY }, 49 { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY }, 50 { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY }, 51 }; 52 53 void __init plat_setup(void) 54 { 55 int i; 56 57 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */ 58 add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K); 59 60 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */ 61 add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M); 62 63 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */ 64 add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M); 65 66 set_io_port_base(JAZZ_PORT_BASE); 67 #ifdef CONFIG_EISA 68 if (mips_machtype == MACH_MIPS_MAGNUM_4000) 69 EISA_bus = 1; 70 #endif 71 isa_slot_offset = 0xe3000000; 72 73 /* request I/O space for devices used on all i[345]86 PCs */ 74 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++) 75 request_resource(&ioport_resource, jazz_io_resources + i); 76 77 board_timer_setup = jazz_time_init; 78 /* The RTC is outside the port address space */ 79 80 _machine_restart = jazz_machine_restart; 81 _machine_halt = jazz_machine_halt; 82 _machine_power_off = jazz_machine_power_off; 83 84 #warning "Somebody should check if screen_info is ok for Jazz." 85 86 screen_info = (struct screen_info) { 87 0, 0, /* orig-x, orig-y */ 88 0, /* unused */ 89 0, /* orig_video_page */ 90 0, /* orig_video_mode */ 91 160, /* orig_video_cols */ 92 0, 0, 0, /* unused, ega_bx, unused */ 93 64, /* orig_video_lines */ 94 0, /* orig_video_isVGA */ 95 16 /* orig_video_points */ 96 }; 97 98 vdma_init(); 99 } 100