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, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
   9  * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
  10  */
  11 #include <linux/eisa.h>
  12 #include <linux/init.h>
  13 #include <linux/console.h>
  14 #include <linux/fb.h>
  15 #include <linux/screen_info.h>
  16
  17 #ifdef CONFIG_ARC
  18 #include <asm/arc/types.h>
  19 #include <asm/sgialib.h>
  20 #endif
  21
  22 #include <asm/io.h>
  23 #include <asm/reboot.h>
  24 #include <asm/sni.h>
  25
  26 unsigned int sni_brd_type;
  27
  28 extern void sni_machine_restart(char *command);
  29 extern void sni_machine_halt(void);
  30 extern void sni_machine_power_off(void);
  31
  32 static void __init sni_display_setup(void)
  33 {
  34 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
  35         struct screen_info *si = &screen_info;
  36         DISPLAY_STATUS *di;
  37
  38         di = ArcGetDisplayStatus(1);
  39
  40         if (di) {
  41                 si->orig_x              = di->CursorXPosition;
  42                 si->orig_y              = di->CursorYPosition;
  43                 si->orig_video_cols     = di->CursorMaxXPosition;
  44                 si->orig_video_lines    = di->CursorMaxYPosition;
  45                 si->orig_video_isVGA    = VIDEO_TYPE_VGAC;
  46                 si->orig_video_points   = 16;
  47         }
  48 #endif
  49 }
  50
  51
  52 void __init plat_mem_setup(void)
  53 {
  54         set_io_port_base(SNI_PORT_BASE);
  55 //      ioport_resource.end = sni_io_resource.end;
  56
  57         /*
  58          * Setup (E)ISA I/O memory access stuff
  59          */
  60         isa_slot_offset = 0xb0000000;
  61 #ifdef CONFIG_EISA
  62         EISA_bus = 1;
  63 #endif
  64
  65         switch (sni_brd_type) {
  66         case SNI_BRD_10:
  67         case SNI_BRD_10NEW:
  68         case SNI_BRD_TOWER_OASIC:
  69         case SNI_BRD_MINITOWER:
  70                 sni_a20r_init();
  71                 break;
  72
  73         case SNI_BRD_PCI_TOWER:
  74         case SNI_BRD_PCI_TOWER_CPLUS:
  75                 sni_pcit_init();
  76                 break;
  77
  78         case SNI_BRD_RM200:
  79                 sni_rm200_init();
  80                 break;
  81
  82         case SNI_BRD_PCI_MTOWER:
  83         case SNI_BRD_PCI_DESKTOP:
  84         case SNI_BRD_PCI_MTOWER_CPLUS:
  85                 sni_pcimt_init();
  86                 break;
  87         }
  88
  89         _machine_restart = sni_machine_restart;
  90         _machine_halt = sni_machine_halt;
  91         pm_power_off = sni_machine_power_off;
  92
  93         sni_display_setup();
  94 }
  95
  96 #if CONFIG_PCI
  97
  98 #include <linux/pci.h>
  99 #include <video/vga.h>
 100 #include <video/cirrus.h>
 101
 102 static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
 103 {
 104         u16 cmd;
 105
 106         /*
 107          * firmware doesn't set the ram size correct, so we
 108          * need to do it here, otherwise we get screen corruption
 109          * on older Cirrus chips
 110          */
 111         pci_read_config_word (dev, PCI_COMMAND, &cmd);
 112         if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
 113                 == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
 114                 vga_wseq (NULL, CL_SEQR6, 0x12);        /* unlock all extension registers */
 115                 vga_wseq (NULL, CL_SEQRF, 0x18);
 116         }
 117 }
 118
 119 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
 120                         quirk_cirrus_ram_size);
 121 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
 122                         quirk_cirrus_ram_size);
 123 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
 124                         quirk_cirrus_ram_size);
 125 #endif