| /* |
| * 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 <linux/config.h> |
| #include <linux/eisa.h> |
| #include <linux/hdreg.h> |
| #include <linux/ioport.h> |
| #include <linux/sched.h> |
| #include <linux/init.h> |
| #include <linux/interrupt.h> |
| #include <linux/mc146818rtc.h> |
| #include <linux/pm.h> |
| #include <linux/pci.h> |
| #include <linux/console.h> |
| #include <linux/fb.h> |
| #include <linux/tty.h> |
| |
| #include <asm/arc/types.h> |
| #include <asm/sgialib.h> |
| #include <asm/bcache.h> |
| #include <asm/bootinfo.h> |
| #include <asm/io.h> |
| #include <asm/irq.h> |
| #include <asm/mc146818-time.h> |
| #include <asm/processor.h> |
| #include <asm/ptrace.h> |
| #include <asm/reboot.h> |
| #include <asm/sni.h> |
| #include <asm/time.h> |
| #include <asm/traps.h> |
| |
| 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 |
| } |