arch/mips/loongson/common/setup.c

   1 /*
   2  * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
   3  * Author: Fuxin Zhang, zhangfx@lemote.com
   4  *
   5  *  This program is free software; you can redistribute  it and/or modify it
   6  *  under  the terms of  the GNU General  Public License as published by the
   7  *  Free Software Foundation;  either version 2 of the  License, or (at your
   8  *  option) any later version.
   9  */
  10 #include <linux/module.h>
  11
  12 #include <asm/wbflush.h>
  13
  14 #include <loongson.h>
  15
  16 #ifdef CONFIG_VT
  17 #include <linux/console.h>
  18 #include <linux/screen_info.h>
  19 #endif
  20
  21 void (*__wbflush)(void);
  22 EXPORT_SYMBOL(__wbflush);
  23
  24 static void wbflush_loongson(void)
  25 {
  26         asm(".set\tpush\n\t"
  27             ".set\tnoreorder\n\t"
  28             ".set mips3\n\t"
  29             "sync\n\t"
  30             "nop\n\t"
  31             ".set\tpop\n\t"
  32             ".set mips0\n\t");
  33 }
  34
  35 void __init plat_mem_setup(void)
  36 {
  37         __wbflush = wbflush_loongson;
  38
  39 #ifdef CONFIG_VT
  40 #if defined(CONFIG_VGA_CONSOLE)
  41         conswitchp = &vga_con;
  42
  43         screen_info = (struct screen_info) {
  44                 0, 25,          /* orig-x, orig-y */
  45                     0,          /* unused */
  46                     0,          /* orig-video-page */
  47                     0,          /* orig-video-mode */
  48                     80,         /* orig-video-cols */
  49                     0, 0, 0,    /* ega_ax, ega_bx, ega_cx */
  50                     25,         /* orig-video-lines */
  51                     VIDEO_TYPE_VGAC,    /* orig-video-isVGA */
  52                     16          /* orig-video-points */
  53         };
  54 #elif defined(CONFIG_DUMMY_CONSOLE)
  55         conswitchp = &dummy_con;
  56 #endif
  57 #endif
  58 }