linux/arch/mips/sni/setup.c
<<
>>
Prefs
   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/fw/arc/types.h>
  19#include <asm/sgialib.h>
  20#endif
  21
  22#ifdef CONFIG_SNIPROM
  23#include <asm/mipsprom.h>
  24#endif
  25
  26#include <asm/bootinfo.h>
  27#include <asm/io.h>
  28#include <asm/reboot.h>
  29#include <asm/sni.h>
  30
  31unsigned int sni_brd_type;
  32EXPORT_SYMBOL(sni_brd_type);
  33
  34extern void sni_machine_restart(char *command);
  35extern void sni_machine_power_off(void);
  36
  37static void __init sni_display_setup(void)
  38{
  39#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
  40        struct screen_info *si = &screen_info;
  41        DISPLAY_STATUS *di;
  42
  43        di = ArcGetDisplayStatus(1);
  44
  45        if (di) {
  46                si->orig_x              = di->CursorXPosition;
  47                si->orig_y              = di->CursorYPosition;
  48                si->orig_video_cols     = di->CursorMaxXPosition;
  49                si->orig_video_lines    = di->CursorMaxYPosition;
  50                si->orig_video_isVGA    = VIDEO_TYPE_VGAC;
  51                si->orig_video_points   = 16;
  52        }
  53#endif
  54}
  55
  56static void __init sni_console_setup(void)
  57{
  58#ifndef CONFIG_ARC
  59        char *ctype;
  60        char *cdev;
  61        char *baud;
  62        int port;
  63        static char options[8];
  64
  65        cdev = prom_getenv("console_dev");
  66        if (strncmp(cdev, "tty", 3) == 0) {
  67                ctype = prom_getenv("console");
  68                switch (*ctype) {
  69                default:
  70                case 'l':
  71                        port = 0;
  72                        baud = prom_getenv("lbaud");
  73                        break;
  74                case 'r':
  75                        port = 1;
  76                        baud = prom_getenv("rbaud");
  77                        break;
  78                }
  79                if (baud)
  80                        strcpy(options, baud);
  81                if (strncmp(cdev, "tty552", 6) == 0)
  82                        add_preferred_console("ttyS", port,
  83                                              baud ? options : NULL);
  84                else
  85                        add_preferred_console("ttySC", port,
  86                                              baud ? options : NULL);
  87        }
  88#endif
  89}
  90
  91#ifdef DEBUG
  92static void __init sni_idprom_dump(void)
  93{
  94        int     i;
  95
  96        pr_debug("SNI IDProm dump:\n");
  97        for (i = 0; i < 256; i++) {
  98                if (i%16 == 0)
  99                        pr_debug("%04x ", i);
 100
 101                printk("%02x ", *(unsigned char *) (SNI_IDPROM_BASE + i));
 102
 103                if (i % 16 == 15)
 104                        printk("\n");
 105        }
 106}
 107#endif
 108
 109void __init plat_mem_setup(void)
 110{
 111        int cputype;
 112
 113        set_io_port_base(SNI_PORT_BASE);
 114//      ioport_resource.end = sni_io_resource.end;
 115
 116        /*
 117         * Setup (E)ISA I/O memory access stuff
 118         */
 119#ifdef CONFIG_EISA
 120        EISA_bus = 1;
 121#endif
 122
 123        sni_brd_type = *(unsigned char *)SNI_IDPROM_BRDTYPE;
 124        cputype = *(unsigned char *)SNI_IDPROM_CPUTYPE;
 125        switch (sni_brd_type) {
 126        case SNI_BRD_TOWER_OASIC:
 127                switch (cputype) {
 128                case SNI_CPU_M8030:
 129                        system_type = "RM400-330";
 130                        break;
 131                case SNI_CPU_M8031:
 132                        system_type = "RM400-430";
 133                        break;
 134                case SNI_CPU_M8037:
 135                        system_type = "RM400-530";
 136                        break;
 137                case SNI_CPU_M8034:
 138                        system_type = "RM400-730";
 139                        break;
 140                default:
 141                        system_type = "RM400-xxx";
 142                        break;
 143                }
 144                break;
 145        case SNI_BRD_MINITOWER:
 146                switch (cputype) {
 147                case SNI_CPU_M8021:
 148                case SNI_CPU_M8043:
 149                        system_type = "RM400-120";
 150                        break;
 151                case SNI_CPU_M8040:
 152                        system_type = "RM400-220";
 153                        break;
 154                case SNI_CPU_M8053:
 155                        system_type = "RM400-225";
 156                        break;
 157                case SNI_CPU_M8050:
 158                        system_type = "RM400-420";
 159                        break;
 160                default:
 161                        system_type = "RM400-xxx";
 162                        break;
 163                }
 164                break;
 165        case SNI_BRD_PCI_TOWER:
 166                system_type = "RM400-Cxx";
 167                break;
 168        case SNI_BRD_RM200:
 169                system_type = "RM200-xxx";
 170                break;
 171        case SNI_BRD_PCI_MTOWER:
 172                system_type = "RM300-Cxx";
 173                break;
 174        case SNI_BRD_PCI_DESKTOP:
 175                switch (read_c0_prid() & 0xff00) {
 176                case PRID_IMP_R4600:
 177                case PRID_IMP_R4700:
 178                        system_type = "RM200-C20";
 179                        break;
 180                case PRID_IMP_R5000:
 181                        system_type = "RM200-C40";
 182                        break;
 183                default:
 184                        system_type = "RM200-Cxx";
 185                        break;
 186                }
 187                break;
 188        case SNI_BRD_PCI_TOWER_CPLUS:
 189                system_type = "RM400-Exx";
 190                break;
 191        case SNI_BRD_PCI_MTOWER_CPLUS:
 192                system_type = "RM300-Exx";
 193                break;
 194        }
 195        pr_debug("Found SNI brdtype %02x name %s\n", sni_brd_type, system_type);
 196
 197#ifdef DEBUG
 198        sni_idprom_dump();
 199#endif
 200
 201        switch (sni_brd_type) {
 202        case SNI_BRD_10:
 203        case SNI_BRD_10NEW:
 204        case SNI_BRD_TOWER_OASIC:
 205        case SNI_BRD_MINITOWER:
 206                sni_a20r_init();
 207                break;
 208
 209        case SNI_BRD_PCI_TOWER:
 210        case SNI_BRD_PCI_TOWER_CPLUS:
 211                sni_pcit_init();
 212                break;
 213
 214        case SNI_BRD_RM200:
 215                sni_rm200_init();
 216                break;
 217
 218        case SNI_BRD_PCI_MTOWER:
 219        case SNI_BRD_PCI_DESKTOP:
 220        case SNI_BRD_PCI_MTOWER_CPLUS:
 221                sni_pcimt_init();
 222                break;
 223        }
 224
 225        _machine_restart = sni_machine_restart;
 226        pm_power_off = sni_machine_power_off;
 227
 228        sni_display_setup();
 229        sni_console_setup();
 230}
 231
 232#ifdef CONFIG_PCI
 233
 234#include <linux/pci.h>
 235#include <video/vga.h>
 236#include <video/cirrus.h>
 237
 238static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
 239{
 240        u16 cmd;
 241
 242        /*
 243         * firmware doesn't set the ram size correct, so we
 244         * need to do it here, otherwise we get screen corruption
 245         * on older Cirrus chips
 246         */
 247        pci_read_config_word(dev, PCI_COMMAND, &cmd);
 248        if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
 249                == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
 250                vga_wseq(NULL, CL_SEQR6, 0x12); /* unlock all extension registers */
 251                vga_wseq(NULL, CL_SEQRF, 0x18);
 252        }
 253}
 254
 255DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
 256                        quirk_cirrus_ram_size);
 257DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
 258                        quirk_cirrus_ram_size);
 259DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
 260                        quirk_cirrus_ram_size);
 261#endif
 262
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.