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/eisa.h> 12 #include <linux/hdreg.h> 13 #include <linux/init.h> 14 #include <linux/ioport.h> 15 #include <linux/sched.h> 16 #include <linux/interrupt.h> 17 #include <linux/mm.h> 18 #include <linux/console.h> 19 #include <linux/fb.h> 20 #include <linux/ide.h> 21 #include <linux/pm.h> 22 #include <linux/screen_info.h> 23 24 #include <asm/bootinfo.h> 25 #include <asm/irq.h> 26 #include <asm/jazz.h> 27 #include <asm/jazzdma.h> 28 #include <asm/reboot.h> 29 #include <asm/io.h> 30 #include <asm/pgtable.h> 31 #include <asm/time.h> 32 #include <asm/traps.h> 33 34 extern asmlinkage void jazz_handle_int(void); 35 36 extern void jazz_machine_restart(char *command); 37 extern void jazz_machine_halt(void); 38 extern void jazz_machine_power_off(void); 39 40 void __init plat_timer_setup(struct irqaction *irq) 41 { 42 /* set the clock to 100 Hz */ 43 r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9); 44 setup_irq(JAZZ_TIMER_IRQ, irq); 45 } 46 47 static struct resource jazz_io_resources[] = { 48 { 49 .start = 0x00, 50 .end = 0x1f, 51 .name = "dma1", 52 .flags = IORESOURCE_BUSY 53 }, { 54 .start = 0x40, 55 .end = 0x5f, 56 .name = "timer", 57 .end = IORESOURCE_BUSY 58 }, { 59 .start = 0x80, 60 .end = 0x8f, 61 .name = "dma page reg", 62 .flags = IORESOURCE_BUSY 63 }, { 64 .start = 0xc0, 65 .end = 0xdf, 66 .name = "dma2", 67 .flags = IORESOURCE_BUSY 68 } 69 }; 70 71 void __init plat_mem_setup(void) 72 { 73 int i; 74 75 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */ 76 add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K); 77 78 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */ 79 add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M); 80 81 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */ 82 add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M); 83 84 set_io_port_base(JAZZ_PORT_BASE); 85 #ifdef CONFIG_EISA 86 if (mips_machtype == MACH_MIPS_MAGNUM_4000) 87 EISA_bus = 1; 88 #endif 89 isa_slot_offset = 0xe3000000; 90 91 /* request I/O space for devices used on all i[345]86 PCs */ 92 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++) 93 request_resource(&ioport_resource, jazz_io_resources + i); 94 95 /* The RTC is outside the port address space */ 96 97 _machine_restart = jazz_machine_restart; 98 _machine_halt = jazz_machine_halt; 99 pm_power_off = jazz_machine_power_off; 100 101 screen_info = (struct screen_info) { 102 0, 0, /* orig-x, orig-y */ 103 0, /* unused */ 104 0, /* orig_video_page */ 105 0, /* orig_video_mode */ 106 160, /* orig_video_cols */ 107 0, 0, 0, /* unused, ega_bx, unused */ 108 64, /* orig_video_lines */ 109 0, /* orig_video_isVGA */ 110 16 /* orig_video_points */ 111 }; 112 113 vdma_init(); 114 } 115