setup.c

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/*
 * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
 * Author: Fuxin Zhang, [email protected]
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 */
#include <linux/module.h>

#include <asm/wbflush.h>

#include <loongson.h>

#ifdef CONFIG_VT
#include <linux/console.h>
#include <linux/screen_info.h>
#endif

void (*__wbflush)(void);
EXPORT_SYMBOL(__wbflush);

static void wbflush_loongson(void)
{
    asm(".set\tpush\n\t"
        ".set\tnoreorder\n\t"
        ".set mips3\n\t"
        "sync\n\t"
        "nop\n\t"
        ".set\tpop\n\t"
        ".set mips0\n\t");
}

void __init plat_mem_setup(void)
{
    __wbflush = wbflush_loongson;

#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
    conswitchp = &vga_con;

    screen_info = (struct screen_info) {
        .orig_x         = 0,
        .orig_y         = 25,
        .orig_video_cols    = 80,
        .orig_video_lines   = 25,
        .orig_video_isVGA   = VIDEO_TYPE_VGAC,
        .orig_video_points  = 16,
    };
#elif defined(CONFIG_DUMMY_CONSOLE)
    conswitchp = &dummy_con;
#endif
#endif
}