arch/ia64/dig/setup.c

   1 /*
   2  * Platform dependent support for DIG64 platforms.
   3  *
   4  * Copyright (C) 1999 Intel Corp.
   5  * Copyright (C) 1999, 2001 Hewlett-Packard Co
   6  * Copyright (C) 1999, 2001, 2003 David Mosberger-Tang <davidm@hpl.hp.com>
   7  * Copyright (C) 1999 VA Linux Systems
   8  * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
   9  * Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
  10  */
  11 #include <linux/config.h>
  12
  13 #include <linux/init.h>
  14 #include <linux/delay.h>
  15 #include <linux/kernel.h>
  16 #include <linux/kdev_t.h>
  17 #include <linux/string.h>
  18 #include <linux/tty.h>
  19 #include <linux/console.h>
  20 #include <linux/timex.h>
  21 #include <linux/sched.h>
  22 #include <linux/root_dev.h>
  23
  24 #include <asm/io.h>
  25 #include <asm/machvec.h>
  26 #include <asm/system.h>
  27
  28 /*
  29  * This is here so we can use the CMOS detection in ide-probe.c to
  30  * determine what drives are present.  In theory, we don't need this
  31  * as the auto-detection could be done via ide-probe.c:do_probe() but
  32  * in practice that would be much slower, which is painful when
  33  * running in the simulator.  Note that passing zeroes in DRIVE_INFO
  34  * is sufficient (the IDE driver will autodetect the drive geometry).
  35  */
  36 char drive_info[4*16];
  37
  38 void __init
  39 dig_setup (char **cmdline_p)
  40 {
  41         unsigned int orig_x, orig_y, num_cols, num_rows, font_height;
  42
  43         /*
  44          * Default to /dev/sda2.  This assumes that the EFI partition
  45          * is physical disk 1 partition 1 and the Linux root disk is
  46          * physical disk 1 partition 2.
  47          */
  48         ROOT_DEV = Root_SDA2;           /* default to second partition on first drive */
  49
  50 #ifdef CONFIG_SMP
  51         init_smp_config();
  52 #endif
  53
  54         memset(&screen_info, 0, sizeof(screen_info));
  55
  56         if (!ia64_boot_param->console_info.num_rows
  57             || !ia64_boot_param->console_info.num_cols)
  58         {
  59                 printk(KERN_WARNING "dig_setup: warning: invalid screen-info, guessing 80x25\n");
  60                 orig_x = 0;
  61                 orig_y = 0;
  62                 num_cols = 80;
  63                 num_rows = 25;
  64                 font_height = 16;
  65         } else {
  66                 orig_x = ia64_boot_param->console_info.orig_x;
  67                 orig_y = ia64_boot_param->console_info.orig_y;
  68                 num_cols = ia64_boot_param->console_info.num_cols;
  69                 num_rows = ia64_boot_param->console_info.num_rows;
  70                 font_height = 400 / num_rows;
  71         }
  72
  73         screen_info.orig_x = orig_x;
  74         screen_info.orig_y = orig_y;
  75         screen_info.orig_video_cols  = num_cols;
  76         screen_info.orig_video_lines = num_rows;
  77         screen_info.orig_video_points = font_height;
  78         screen_info.orig_video_mode = 3;        /* XXX fake */
  79         screen_info.orig_video_isVGA = 1;       /* XXX fake */
  80         screen_info.orig_video_ega_bx = 3;      /* XXX fake */
  81 }
  82
  83 void __init
  84 dig_irq_init (void)
  85 {
  86 }