arch/mips/sni/setup.c

   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, 2000 by Ralf Baechle
   9  */
  10 #include <asm/ptrace.h>
  11 #include <linux/config.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/timex.h>
  18 #include <linux/pci.h>
  19 #include <linux/mc146818rtc.h>
  20 #include <linux/console.h>
  21 #include <linux/fb.h>
  22 #include <linux/ide.h>
  23
  24 #include <asm/bcache.h>
  25 #include <asm/bootinfo.h>
  26 #include <asm/io.h>
  27 #include <asm/irq.h>
  28 #include <asm/processor.h>
  29 #include <asm/reboot.h>
  30 #include <asm/sni.h>
  31 #include <asm/time.h>
  32 #include <asm/traps.h>
  33
  34 extern void sni_machine_restart(char *command);
  35 extern void sni_machine_halt(void);
  36 extern void sni_machine_power_off(void);
  37
  38 extern struct ide_ops std_ide_ops;
  39 extern struct rtc_ops std_rtc_ops;
  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 extern unsigned char sni_map_isa_cache;
  52
  53 /*
  54  * A bit more gossip about the iron we're running on ...
  55  */
  56 static inline void sni_pcimt_detect(void)
  57 {
  58         char boardtype[80];
  59         unsigned char csmsr;
  60         char *p = boardtype;
  61         unsigned int asic;
  62
  63         csmsr = *(volatile unsigned char *)PCIMT_CSMSR;
  64
  65         p += sprintf(p, "%s PCI", (csmsr & 0x80) ? "RM200" : "RM300");
  66         if ((csmsr & 0x80) == 0)
  67                 p += sprintf(p, ", board revision %s",
  68                              (csmsr & 0x20) ? "D" : "C");
  69         asic = csmsr & 0x80;
  70         asic = (csmsr & 0x08) ? asic : !asic;
  71         p += sprintf(p, ", ASIC PCI Rev %s", asic ? "1.0" : "1.1");
  72         printk("%s.\n", boardtype);
  73 }
  74
  75 void __init sni_rm200_pci_setup(void)
  76 {
  77         sni_pcimt_detect();
  78         sni_pcimt_sc_init();
  79
  80         set_io_port_base(SNI_PORT_BASE);
  81
  82         /*
  83          * Setup (E)ISA I/O memory access stuff
  84          */
  85         isa_slot_offset = 0xb0000000;
  86         // sni_map_isa_cache = 0;
  87         EISA_bus = 1;
  88
  89         request_region(0x00,0x20,"dma1");
  90         request_region(0x40,0x20,"timer");
  91         /* XXX FIXME: CONFIG_RTC */
  92         request_region(0x70,0x10,"rtc");
  93         request_region(0x80,0x10,"dma page reg");
  94         request_region(0xc0,0x20,"dma2");
  95         board_timer_setup = sni_rm200_pci_timer_setup;
  96
  97         _machine_restart = sni_machine_restart;
  98         _machine_halt = sni_machine_halt;
  99         _machine_power_off = sni_machine_power_off;
 100
 101         /*
 102          * Some cluefull person has placed the PCI config data directly in
 103          * the I/O port space ...
 104          */
 105         request_region(0xcfc,0x04,"PCI config data");
 106
 107 #ifdef CONFIG_BLK_DEV_IDE
 108         ide_ops = &std_ide_ops;
 109 #endif
 110         conswitchp = &vga_con;
 111
 112         screen_info = (struct screen_info) {
 113                 0, 0,           /* orig-x, orig-y */
 114                 0,              /* unused */
 115                 52,             /* orig_video_page */
 116                 3,              /* orig_video_mode */
 117                 80,             /* orig_video_cols */
 118                 4626, 3, 9,     /* unused, ega_bx, unused */
 119                 50,             /* orig_video_lines */
 120                 0x22,           /* orig_video_isVGA */
 121                 16              /* orig_video_points */
 122         };
 123
 124         rtc_ops = &std_rtc_ops;
 125 }