/* * Setup pointers to hardware-dependent routines. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org) */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern void sni_machine_restart(char *command); extern void sni_machine_halt(void); extern void sni_machine_power_off(void); static void __init sni_rm200_pci_timer_setup(struct irqaction *irq) { /* set the clock to 100 Hz */ outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */ outb_p(LATCH & 0xff , 0x40); /* LSB */ outb(LATCH >> 8 , 0x40); /* MSB */ setup_irq(0, irq); } /* * A bit more gossip about the iron we're running on ... */ static inline void sni_pcimt_detect(void) { char boardtype[80]; unsigned char csmsr; char *p = boardtype; unsigned int asic; csmsr = *(volatile unsigned char *)PCIMT_CSMSR; p += sprintf(p, "%s PCI", (csmsr & 0x80) ? "RM200" : "RM300"); if ((csmsr & 0x80) == 0) p += sprintf(p, ", board revision %s", (csmsr & 0x20) ? "D" : "C"); asic = csmsr & 0x80; asic = (csmsr & 0x08) ? asic : !asic; p += sprintf(p, ", ASIC PCI Rev %s", asic ? "1.0" : "1.1"); printk("%s.\n", boardtype); } static void __init sni_display_setup(void) { #ifdef CONFIG_VT #if defined(CONFIG_VGA_CONSOLE) struct screen_info *si = &screen_info; DISPLAY_STATUS *di; di = ArcGetDisplayStatus(1); if (di) { si->orig_x = di->CursorXPosition; si->orig_y = di->CursorYPosition; si->orig_video_cols = di->CursorMaxXPosition; si->orig_video_lines = di->CursorMaxYPosition; si->orig_video_isVGA = VIDEO_TYPE_VGAC; si->orig_video_points = 16; } #endif #endif } static struct resource sni_io_resource = { .start = 0x00001000UL, .end = 0x03bfffffUL, .name = "PCIMT IO MEM", .flags = IORESOURCE_IO, }; static struct resource pcimt_io_resources[] = { { .start = 0x00, .end = 0x1f, .name = "dma1", .flags = IORESOURCE_BUSY }, { .start = 0x40, .end = 0x5f, .name = "timer", .flags = IORESOURCE_BUSY }, { .start = 0x60, .end = 0x6f, .name = "keyboard", .flags = IORESOURCE_BUSY }, { .start = 0x80, .end = 0x8f, .name = "dma page reg", .flags = IORESOURCE_BUSY }, { .start = 0xc0, .end = 0xdf, .name = "dma2", .flags = IORESOURCE_BUSY }, { .start = 0xcfc, .end = 0xcff, .name = "PCI config data", .flags = IORESOURCE_BUSY } }; static struct resource sni_mem_resource = { .start = 0x10000000UL, .end = 0xffffffffUL, .name = "PCIMT PCI MEM", .flags = IORESOURCE_MEM }; /* * The RM200/RM300 has a few holes in it's PCI/EISA memory address space used * for other purposes. Be paranoid and allocate all of the before the PCI * code gets a chance to to map anything else there ... * * This leaves the following areas available: * * 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory * 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory * 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory * 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory * 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory */ static struct resource pcimt_mem_resources[] = { { .start = 0x100a0000, .end = 0x100bffff, .name = "Video RAM area", .flags = IORESOURCE_BUSY }, { .start = 0x100c0000, .end = 0x100fffff, .name = "ISA Reserved", .flags = IORESOURCE_BUSY }, { .start = 0x14000000, .end = 0x17bfffff, .name = "PCI IO", .flags = IORESOURCE_BUSY }, { .start = 0x17c00000, .end = 0x17ffffff, .name = "Cache Replacement Area", .flags = IORESOURCE_BUSY }, { .start = 0x1a000000, .end = 0x1a000003, .name = "PCI INT Acknowledge", .flags = IORESOURCE_BUSY }, { .start = 0x1fc00000, .end = 0x1fc7ffff, .name = "Boot PROM", .flags = IORESOURCE_BUSY }, { .start = 0x1fc80000, .end = 0x1fcfffff, .name = "Diag PROM", .flags = IORESOURCE_BUSY }, { .start = 0x1fd00000, .end = 0x1fdfffff, .name = "X-Bus", .flags = IORESOURCE_BUSY }, { .start = 0x1fe00000, .end = 0x1fefffff, .name = "BIOS map", .flags = IORESOURCE_BUSY }, { .start = 0x1ff00000, .end = 0x1ff7ffff, .name = "NVRAM / EEPROM", .flags = IORESOURCE_BUSY }, { .start = 0x1fff0000, .end = 0x1fffefff, .name = "ASIC PCI", .flags = IORESOURCE_BUSY }, { .start = 0x1ffff000, .end = 0x1fffffff, .name = "MP Agent", .flags = IORESOURCE_BUSY }, { .start = 0x20000000, .end = 0x9fffffff, .name = "Main Memory", .flags = IORESOURCE_BUSY } }; static void __init sni_resource_init(void) { int i; /* request I/O space for devices used on all i[345]86 PCs */ for (i = 0; i < ARRAY_SIZE(pcimt_io_resources); i++) request_resource(&ioport_resource, pcimt_io_resources + i); /* request mem space for pcimt-specific devices */ for (i = 0; i < ARRAY_SIZE(pcimt_mem_resources); i++) request_resource(&sni_mem_resource, pcimt_mem_resources + i); ioport_resource.end = sni_io_resource.end; } extern struct pci_ops sni_pci_ops; static struct pci_controller sni_controller = { .pci_ops = &sni_pci_ops, .mem_resource = &sni_mem_resource, .mem_offset = 0x10000000UL, .io_resource = &sni_io_resource, .io_offset = 0x00000000UL }; static inline void sni_pcimt_time_init(void) { rtc_mips_get_time = mc146818_get_cmos_time; rtc_mips_set_time = mc146818_set_rtc_mmss; } void __init plat_mem_setup(void) { sni_pcimt_detect(); sni_pcimt_sc_init(); sni_pcimt_time_init(); set_io_port_base(SNI_PORT_BASE); ioport_resource.end = sni_io_resource.end; /* * Setup (E)ISA I/O memory access stuff */ isa_slot_offset = 0xb0000000; #ifdef CONFIG_EISA EISA_bus = 1; #endif sni_resource_init(); board_timer_setup = sni_rm200_pci_timer_setup; _machine_restart = sni_machine_restart; _machine_halt = sni_machine_halt; pm_power_off = sni_machine_power_off; sni_display_setup(); #ifdef CONFIG_PCI register_pci_controller(&sni_controller); #endif }