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