machtype.c

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/*
 * Copyright (C) 2009 Lemote Inc.
 * Author: Wu Zhangjin, [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 <asm/bootinfo.h>

#include <loongson.h>

void __init mach_prom_init_machtype(void)
{
    /* We share the same kernel image file among Lemote 2F family
     * of machines, and provide the machtype= kernel command line
     * to users to indicate their machine, this command line will
     * be passed by the latest PMON automatically. and fortunately,
     * up to now, we can get the machine type from the PMON_VER=
     * commandline directly except the NAS machine, In the old
     * machines, this will help the users a lot.
     *
     * If no "machtype=" passed, get machine type from "PMON_VER=".
     *  PMON_VER=LM8089     Lemote 8.9'' netbook
     *           LM8101     Lemote 10.1'' netbook
     *  (The above two netbooks have the same kernel support)
     *           LM6XXX     Lemote FuLoong(2F) box series
     *           LM9XXX     Lemote LynLoong PC series
     */
    if (strstr(arcs_cmdline, "PMON_VER=LM")) {
        if (strstr(arcs_cmdline, "PMON_VER=LM8"))
            mips_machtype = MACH_LEMOTE_YL2F89;
        else if (strstr(arcs_cmdline, "PMON_VER=LM6"))
            mips_machtype = MACH_LEMOTE_FL2F;
        else if (strstr(arcs_cmdline, "PMON_VER=LM9"))
            mips_machtype = MACH_LEMOTE_LL2F;
        else
            mips_machtype = MACH_LEMOTE_NAS;

        strcat(arcs_cmdline, " machtype=");
        strcat(arcs_cmdline, get_system_type());
        strcat(arcs_cmdline, " ");
    }
}