Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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, 97, 98, 2000, 03, 04 Ralf Baechle (ralf@linux-mips.org) |
| 9 | */ |
| 10 | #include <linux/config.h> |
| 11 | #include <linux/eisa.h> |
| 12 | #include <linux/hdreg.h> |
| 13 | #include <linux/ioport.h> |
| 14 | #include <linux/sched.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/interrupt.h> |
| 17 | #include <linux/mc146818rtc.h> |
| 18 | #include <linux/pci.h> |
| 19 | #include <linux/console.h> |
| 20 | #include <linux/fb.h> |
| 21 | #include <linux/tty.h> |
| 22 | |
| 23 | #include <asm/arc/types.h> |
| 24 | #include <asm/sgialib.h> |
| 25 | #include <asm/bcache.h> |
| 26 | #include <asm/bootinfo.h> |
| 27 | #include <asm/io.h> |
| 28 | #include <asm/irq.h> |
| 29 | #include <asm/mc146818-time.h> |
| 30 | #include <asm/processor.h> |
| 31 | #include <asm/ptrace.h> |
| 32 | #include <asm/reboot.h> |
| 33 | #include <asm/sni.h> |
| 34 | #include <asm/time.h> |
| 35 | #include <asm/traps.h> |
| 36 | |
| 37 | extern void sni_machine_restart(char *command); |
| 38 | extern void sni_machine_halt(void); |
| 39 | extern void sni_machine_power_off(void); |
| 40 | |
| 41 | static void __init sni_rm200_pci_timer_setup(struct irqaction *irq) |
| 42 | { |
| 43 | /* set the clock to 100 Hz */ |
| 44 | outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */ |
| 45 | outb_p(LATCH & 0xff , 0x40); /* LSB */ |
| 46 | outb(LATCH >> 8 , 0x40); /* MSB */ |
| 47 | setup_irq(0, irq); |
| 48 | } |
| 49 | |
| 50 | /* |
| 51 | * A bit more gossip about the iron we're running on ... |
| 52 | */ |
| 53 | static inline void sni_pcimt_detect(void) |
| 54 | { |
| 55 | char boardtype[80]; |
| 56 | unsigned char csmsr; |
| 57 | char *p = boardtype; |
| 58 | unsigned int asic; |
| 59 | |
| 60 | csmsr = *(volatile unsigned char *)PCIMT_CSMSR; |
| 61 | |
| 62 | p += sprintf(p, "%s PCI", (csmsr & 0x80) ? "RM200" : "RM300"); |
| 63 | if ((csmsr & 0x80) == 0) |
| 64 | p += sprintf(p, ", board revision %s", |
| 65 | (csmsr & 0x20) ? "D" : "C"); |
| 66 | asic = csmsr & 0x80; |
| 67 | asic = (csmsr & 0x08) ? asic : !asic; |
| 68 | p += sprintf(p, ", ASIC PCI Rev %s", asic ? "1.0" : "1.1"); |
| 69 | printk("%s.\n", boardtype); |
| 70 | } |
| 71 | |
| 72 | static void __init sni_display_setup(void) |
| 73 | { |
| 74 | #ifdef CONFIG_VT |
| 75 | #if defined(CONFIG_VGA_CONSOLE) |
| 76 | struct screen_info *si = &screen_info; |
| 77 | DISPLAY_STATUS *di; |
| 78 | |
| 79 | di = ArcGetDisplayStatus(1); |
| 80 | |
| 81 | if (di) { |
| 82 | si->orig_x = di->CursorXPosition; |
| 83 | si->orig_y = di->CursorYPosition; |
| 84 | si->orig_video_cols = di->CursorMaxXPosition; |
| 85 | si->orig_video_lines = di->CursorMaxYPosition; |
| 86 | si->orig_video_isVGA = VIDEO_TYPE_VGAC; |
| 87 | si->orig_video_points = 16; |
| 88 | } |
| 89 | #endif |
| 90 | #endif |
| 91 | } |
| 92 | |
| 93 | static struct resource sni_io_resource = { |
| 94 | "PCIMT IO MEM", 0x00001000UL, 0x03bfffffUL, IORESOURCE_IO, |
| 95 | }; |
| 96 | |
| 97 | static struct resource pcimt_io_resources[] = { |
| 98 | { "dma1", 0x00, 0x1f, IORESOURCE_BUSY }, |
| 99 | { "timer", 0x40, 0x5f, IORESOURCE_BUSY }, |
| 100 | { "keyboard", 0x60, 0x6f, IORESOURCE_BUSY }, |
| 101 | { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY }, |
| 102 | { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY }, |
| 103 | { "PCI config data", 0xcfc, 0xcff, IORESOURCE_BUSY } |
| 104 | }; |
| 105 | |
| 106 | static struct resource sni_mem_resource = { |
| 107 | "PCIMT PCI MEM", 0x10000000UL, 0xffffffffUL, IORESOURCE_MEM |
| 108 | }; |
| 109 | |
| 110 | /* |
| 111 | * The RM200/RM300 has a few holes in it's PCI/EISA memory address space used |
| 112 | * for other purposes. Be paranoid and allocate all of the before the PCI |
| 113 | * code gets a chance to to map anything else there ... |
Ralf Baechle | 42a3b4f | 2005-09-03 15:56:17 -0700 | [diff] [blame] | 114 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | * This leaves the following areas available: |
| 116 | * |
| 117 | * 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory |
| 118 | * 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory |
| 119 | * 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory |
| 120 | * 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory |
| 121 | * 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory |
| 122 | */ |
| 123 | static struct resource pcimt_mem_resources[] = { |
| 124 | { "Video RAM area", 0x100a0000, 0x100bffff, IORESOURCE_BUSY }, |
| 125 | { "ISA Reserved", 0x100c0000, 0x100fffff, IORESOURCE_BUSY }, |
| 126 | { "PCI IO", 0x14000000, 0x17bfffff, IORESOURCE_BUSY }, |
| 127 | { "Cache Replacement Area", 0x17c00000, 0x17ffffff, IORESOURCE_BUSY}, |
| 128 | { "PCI INT Acknowledge", 0x1a000000, 0x1a000003, IORESOURCE_BUSY }, |
| 129 | { "Boot PROM", 0x1fc00000, 0x1fc7ffff, IORESOURCE_BUSY}, |
| 130 | { "Diag PROM", 0x1fc80000, 0x1fcfffff, IORESOURCE_BUSY}, |
| 131 | { "X-Bus", 0x1fd00000, 0x1fdfffff, IORESOURCE_BUSY}, |
| 132 | { "BIOS map", 0x1fe00000, 0x1fefffff, IORESOURCE_BUSY}, |
| 133 | { "NVRAM / EEPROM", 0x1ff00000, 0x1ff7ffff, IORESOURCE_BUSY}, |
| 134 | { "ASIC PCI", 0x1fff0000, 0x1fffefff, IORESOURCE_BUSY}, |
| 135 | { "MP Agent", 0x1ffff000, 0x1fffffff, IORESOURCE_BUSY}, |
| 136 | { "Main Memory", 0x20000000, 0x9fffffff, IORESOURCE_BUSY} |
| 137 | }; |
| 138 | |
| 139 | static void __init sni_resource_init(void) |
| 140 | { |
| 141 | int i; |
| 142 | |
| 143 | /* request I/O space for devices used on all i[345]86 PCs */ |
| 144 | for (i = 0; i < ARRAY_SIZE(pcimt_io_resources); i++) |
| 145 | request_resource(&ioport_resource, pcimt_io_resources + i); |
| 146 | |
| 147 | /* request mem space for pcimt-specific devices */ |
| 148 | for (i = 0; i < ARRAY_SIZE(pcimt_mem_resources); i++) |
| 149 | request_resource(&sni_mem_resource, pcimt_mem_resources + i); |
| 150 | |
| 151 | ioport_resource.end = sni_io_resource.end; |
| 152 | } |
| 153 | |
| 154 | extern struct pci_ops sni_pci_ops; |
| 155 | |
| 156 | static struct pci_controller sni_controller = { |
| 157 | .pci_ops = &sni_pci_ops, |
| 158 | .mem_resource = &sni_mem_resource, |
| 159 | .mem_offset = 0x10000000UL, |
| 160 | .io_resource = &sni_io_resource, |
| 161 | .io_offset = 0x00000000UL |
| 162 | }; |
| 163 | |
| 164 | static inline void sni_pcimt_time_init(void) |
| 165 | { |
| 166 | rtc_get_time = mc146818_get_cmos_time; |
| 167 | rtc_set_time = mc146818_set_rtc_mmss; |
| 168 | } |
| 169 | |
| 170 | static int __init sni_rm200_pci_setup(void) |
| 171 | { |
| 172 | sni_pcimt_detect(); |
| 173 | sni_pcimt_sc_init(); |
| 174 | sni_pcimt_time_init(); |
| 175 | |
| 176 | set_io_port_base(SNI_PORT_BASE); |
| 177 | ioport_resource.end = sni_io_resource.end; |
| 178 | |
| 179 | /* |
| 180 | * Setup (E)ISA I/O memory access stuff |
| 181 | */ |
| 182 | isa_slot_offset = 0xb0000000; |
| 183 | #ifdef CONFIG_EISA |
| 184 | EISA_bus = 1; |
| 185 | #endif |
| 186 | |
| 187 | sni_resource_init(); |
| 188 | board_timer_setup = sni_rm200_pci_timer_setup; |
| 189 | |
| 190 | _machine_restart = sni_machine_restart; |
| 191 | _machine_halt = sni_machine_halt; |
| 192 | _machine_power_off = sni_machine_power_off; |
| 193 | |
| 194 | sni_display_setup(); |
| 195 | |
| 196 | #ifdef CONFIG_PCI |
| 197 | register_pci_controller(&sni_controller); |
| 198 | #endif |
| 199 | |
| 200 | return 0; |
| 201 | } |
| 202 | |
| 203 | early_initcall(sni_rm200_pci_setup); |