11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Setup pointers to hardware-dependent routines. 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * This file is subject to the terms and conditions of the GNU General Public 51da177e4SLinus Torvalds * License. See the file "COPYING" in the main directory of this archive 61da177e4SLinus Torvalds * for more details. 71da177e4SLinus Torvalds * 8*fcdb27adSRalf Baechle * Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org) 91da177e4SLinus Torvalds */ 101da177e4SLinus Torvalds #include <linux/config.h> 111da177e4SLinus Torvalds #include <linux/eisa.h> 121da177e4SLinus Torvalds #include <linux/hdreg.h> 131da177e4SLinus Torvalds #include <linux/ioport.h> 141da177e4SLinus Torvalds #include <linux/sched.h> 151da177e4SLinus Torvalds #include <linux/init.h> 161da177e4SLinus Torvalds #include <linux/interrupt.h> 171da177e4SLinus Torvalds #include <linux/mc146818rtc.h> 18*fcdb27adSRalf Baechle #include <linux/pm.h> 191da177e4SLinus Torvalds #include <linux/pci.h> 201da177e4SLinus Torvalds #include <linux/console.h> 211da177e4SLinus Torvalds #include <linux/fb.h> 221da177e4SLinus Torvalds #include <linux/tty.h> 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds #include <asm/arc/types.h> 251da177e4SLinus Torvalds #include <asm/sgialib.h> 261da177e4SLinus Torvalds #include <asm/bcache.h> 271da177e4SLinus Torvalds #include <asm/bootinfo.h> 281da177e4SLinus Torvalds #include <asm/io.h> 291da177e4SLinus Torvalds #include <asm/irq.h> 301da177e4SLinus Torvalds #include <asm/mc146818-time.h> 311da177e4SLinus Torvalds #include <asm/processor.h> 321da177e4SLinus Torvalds #include <asm/ptrace.h> 331da177e4SLinus Torvalds #include <asm/reboot.h> 341da177e4SLinus Torvalds #include <asm/sni.h> 351da177e4SLinus Torvalds #include <asm/time.h> 361da177e4SLinus Torvalds #include <asm/traps.h> 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds extern void sni_machine_restart(char *command); 391da177e4SLinus Torvalds extern void sni_machine_halt(void); 401da177e4SLinus Torvalds extern void sni_machine_power_off(void); 411da177e4SLinus Torvalds 421da177e4SLinus Torvalds static void __init sni_rm200_pci_timer_setup(struct irqaction *irq) 431da177e4SLinus Torvalds { 441da177e4SLinus Torvalds /* set the clock to 100 Hz */ 451da177e4SLinus Torvalds outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */ 461da177e4SLinus Torvalds outb_p(LATCH & 0xff , 0x40); /* LSB */ 471da177e4SLinus Torvalds outb(LATCH >> 8 , 0x40); /* MSB */ 481da177e4SLinus Torvalds setup_irq(0, irq); 491da177e4SLinus Torvalds } 501da177e4SLinus Torvalds 511da177e4SLinus Torvalds /* 521da177e4SLinus Torvalds * A bit more gossip about the iron we're running on ... 531da177e4SLinus Torvalds */ 541da177e4SLinus Torvalds static inline void sni_pcimt_detect(void) 551da177e4SLinus Torvalds { 561da177e4SLinus Torvalds char boardtype[80]; 571da177e4SLinus Torvalds unsigned char csmsr; 581da177e4SLinus Torvalds char *p = boardtype; 591da177e4SLinus Torvalds unsigned int asic; 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds csmsr = *(volatile unsigned char *)PCIMT_CSMSR; 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds p += sprintf(p, "%s PCI", (csmsr & 0x80) ? "RM200" : "RM300"); 641da177e4SLinus Torvalds if ((csmsr & 0x80) == 0) 651da177e4SLinus Torvalds p += sprintf(p, ", board revision %s", 661da177e4SLinus Torvalds (csmsr & 0x20) ? "D" : "C"); 671da177e4SLinus Torvalds asic = csmsr & 0x80; 681da177e4SLinus Torvalds asic = (csmsr & 0x08) ? asic : !asic; 691da177e4SLinus Torvalds p += sprintf(p, ", ASIC PCI Rev %s", asic ? "1.0" : "1.1"); 701da177e4SLinus Torvalds printk("%s.\n", boardtype); 711da177e4SLinus Torvalds } 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds static void __init sni_display_setup(void) 741da177e4SLinus Torvalds { 751da177e4SLinus Torvalds #ifdef CONFIG_VT 761da177e4SLinus Torvalds #if defined(CONFIG_VGA_CONSOLE) 771da177e4SLinus Torvalds struct screen_info *si = &screen_info; 781da177e4SLinus Torvalds DISPLAY_STATUS *di; 791da177e4SLinus Torvalds 801da177e4SLinus Torvalds di = ArcGetDisplayStatus(1); 811da177e4SLinus Torvalds 821da177e4SLinus Torvalds if (di) { 831da177e4SLinus Torvalds si->orig_x = di->CursorXPosition; 841da177e4SLinus Torvalds si->orig_y = di->CursorYPosition; 851da177e4SLinus Torvalds si->orig_video_cols = di->CursorMaxXPosition; 861da177e4SLinus Torvalds si->orig_video_lines = di->CursorMaxYPosition; 871da177e4SLinus Torvalds si->orig_video_isVGA = VIDEO_TYPE_VGAC; 881da177e4SLinus Torvalds si->orig_video_points = 16; 891da177e4SLinus Torvalds } 901da177e4SLinus Torvalds #endif 911da177e4SLinus Torvalds #endif 921da177e4SLinus Torvalds } 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds static struct resource sni_io_resource = { 951da177e4SLinus Torvalds "PCIMT IO MEM", 0x00001000UL, 0x03bfffffUL, IORESOURCE_IO, 961da177e4SLinus Torvalds }; 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds static struct resource pcimt_io_resources[] = { 991da177e4SLinus Torvalds { "dma1", 0x00, 0x1f, IORESOURCE_BUSY }, 1001da177e4SLinus Torvalds { "timer", 0x40, 0x5f, IORESOURCE_BUSY }, 1011da177e4SLinus Torvalds { "keyboard", 0x60, 0x6f, IORESOURCE_BUSY }, 1021da177e4SLinus Torvalds { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY }, 1031da177e4SLinus Torvalds { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY }, 1041da177e4SLinus Torvalds { "PCI config data", 0xcfc, 0xcff, IORESOURCE_BUSY } 1051da177e4SLinus Torvalds }; 1061da177e4SLinus Torvalds 1071da177e4SLinus Torvalds static struct resource sni_mem_resource = { 1081da177e4SLinus Torvalds "PCIMT PCI MEM", 0x10000000UL, 0xffffffffUL, IORESOURCE_MEM 1091da177e4SLinus Torvalds }; 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds /* 1121da177e4SLinus Torvalds * The RM200/RM300 has a few holes in it's PCI/EISA memory address space used 1131da177e4SLinus Torvalds * for other purposes. Be paranoid and allocate all of the before the PCI 1141da177e4SLinus Torvalds * code gets a chance to to map anything else there ... 1151da177e4SLinus Torvalds * 1161da177e4SLinus Torvalds * This leaves the following areas available: 1171da177e4SLinus Torvalds * 1181da177e4SLinus Torvalds * 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory 1191da177e4SLinus Torvalds * 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory 1201da177e4SLinus Torvalds * 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory 1211da177e4SLinus Torvalds * 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory 1221da177e4SLinus Torvalds * 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory 1231da177e4SLinus Torvalds */ 1241da177e4SLinus Torvalds static struct resource pcimt_mem_resources[] = { 1251da177e4SLinus Torvalds { "Video RAM area", 0x100a0000, 0x100bffff, IORESOURCE_BUSY }, 1261da177e4SLinus Torvalds { "ISA Reserved", 0x100c0000, 0x100fffff, IORESOURCE_BUSY }, 1271da177e4SLinus Torvalds { "PCI IO", 0x14000000, 0x17bfffff, IORESOURCE_BUSY }, 1281da177e4SLinus Torvalds { "Cache Replacement Area", 0x17c00000, 0x17ffffff, IORESOURCE_BUSY}, 1291da177e4SLinus Torvalds { "PCI INT Acknowledge", 0x1a000000, 0x1a000003, IORESOURCE_BUSY }, 1301da177e4SLinus Torvalds { "Boot PROM", 0x1fc00000, 0x1fc7ffff, IORESOURCE_BUSY}, 1311da177e4SLinus Torvalds { "Diag PROM", 0x1fc80000, 0x1fcfffff, IORESOURCE_BUSY}, 1321da177e4SLinus Torvalds { "X-Bus", 0x1fd00000, 0x1fdfffff, IORESOURCE_BUSY}, 1331da177e4SLinus Torvalds { "BIOS map", 0x1fe00000, 0x1fefffff, IORESOURCE_BUSY}, 1341da177e4SLinus Torvalds { "NVRAM / EEPROM", 0x1ff00000, 0x1ff7ffff, IORESOURCE_BUSY}, 1351da177e4SLinus Torvalds { "ASIC PCI", 0x1fff0000, 0x1fffefff, IORESOURCE_BUSY}, 1361da177e4SLinus Torvalds { "MP Agent", 0x1ffff000, 0x1fffffff, IORESOURCE_BUSY}, 1371da177e4SLinus Torvalds { "Main Memory", 0x20000000, 0x9fffffff, IORESOURCE_BUSY} 1381da177e4SLinus Torvalds }; 1391da177e4SLinus Torvalds 1401da177e4SLinus Torvalds static void __init sni_resource_init(void) 1411da177e4SLinus Torvalds { 1421da177e4SLinus Torvalds int i; 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds /* request I/O space for devices used on all i[345]86 PCs */ 1451da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(pcimt_io_resources); i++) 1461da177e4SLinus Torvalds request_resource(&ioport_resource, pcimt_io_resources + i); 1471da177e4SLinus Torvalds 1481da177e4SLinus Torvalds /* request mem space for pcimt-specific devices */ 1491da177e4SLinus Torvalds for (i = 0; i < ARRAY_SIZE(pcimt_mem_resources); i++) 1501da177e4SLinus Torvalds request_resource(&sni_mem_resource, pcimt_mem_resources + i); 1511da177e4SLinus Torvalds 1521da177e4SLinus Torvalds ioport_resource.end = sni_io_resource.end; 1531da177e4SLinus Torvalds } 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds extern struct pci_ops sni_pci_ops; 1561da177e4SLinus Torvalds 1571da177e4SLinus Torvalds static struct pci_controller sni_controller = { 1581da177e4SLinus Torvalds .pci_ops = &sni_pci_ops, 1591da177e4SLinus Torvalds .mem_resource = &sni_mem_resource, 1601da177e4SLinus Torvalds .mem_offset = 0x10000000UL, 1611da177e4SLinus Torvalds .io_resource = &sni_io_resource, 1621da177e4SLinus Torvalds .io_offset = 0x00000000UL 1631da177e4SLinus Torvalds }; 1641da177e4SLinus Torvalds 1651da177e4SLinus Torvalds static inline void sni_pcimt_time_init(void) 1661da177e4SLinus Torvalds { 1671da177e4SLinus Torvalds rtc_get_time = mc146818_get_cmos_time; 1681da177e4SLinus Torvalds rtc_set_time = mc146818_set_rtc_mmss; 1691da177e4SLinus Torvalds } 1701da177e4SLinus Torvalds 171c83cfc9cSRalf Baechle void __init plat_setup(void) 1721da177e4SLinus Torvalds { 1731da177e4SLinus Torvalds sni_pcimt_detect(); 1741da177e4SLinus Torvalds sni_pcimt_sc_init(); 1751da177e4SLinus Torvalds sni_pcimt_time_init(); 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds set_io_port_base(SNI_PORT_BASE); 1781da177e4SLinus Torvalds ioport_resource.end = sni_io_resource.end; 1791da177e4SLinus Torvalds 1801da177e4SLinus Torvalds /* 1811da177e4SLinus Torvalds * Setup (E)ISA I/O memory access stuff 1821da177e4SLinus Torvalds */ 1831da177e4SLinus Torvalds isa_slot_offset = 0xb0000000; 1841da177e4SLinus Torvalds #ifdef CONFIG_EISA 1851da177e4SLinus Torvalds EISA_bus = 1; 1861da177e4SLinus Torvalds #endif 1871da177e4SLinus Torvalds 1881da177e4SLinus Torvalds sni_resource_init(); 1891da177e4SLinus Torvalds board_timer_setup = sni_rm200_pci_timer_setup; 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds _machine_restart = sni_machine_restart; 1921da177e4SLinus Torvalds _machine_halt = sni_machine_halt; 193*fcdb27adSRalf Baechle pm_power_off = sni_machine_power_off; 1941da177e4SLinus Torvalds 1951da177e4SLinus Torvalds sni_display_setup(); 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds #ifdef CONFIG_PCI 1981da177e4SLinus Torvalds register_pci_controller(&sni_controller); 1991da177e4SLinus Torvalds #endif 2001da177e4SLinus Torvalds } 201