1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2009 Lemote Inc.
4 * Author: Wu Zhangjin, wuzhangjin@gmail.com
5 */
6 #include <asm/bootinfo.h>
7
8 #include <loongson.h>
9
10 void __init mach_prom_init_machtype(void)
11 {
12 /* We share the same kernel image file among Lemote 2F family
13 * of machines, and provide the machtype= kernel command line
14 * to users to indicate their machine, this command line will
15 * be passed by the latest PMON automatically. and fortunately,
16 * up to now, we can get the machine type from the PMON_VER=
17 * commandline directly except the NAS machine, In the old
18 * machines, this will help the users a lot.
19 *
20 * If no "machtype=" passed, get machine type from "PMON_VER=".
21 * PMON_VER=LM8089 Lemote 8.9'' netbook
22 * LM8101 Lemote 10.1'' netbook
23 * (The above two netbooks have the same kernel support)
24 * LM6XXX Lemote FuLoong(2F) box series
25 * LM9XXX Lemote LynLoong PC series
26 */
27 if (strstr(arcs_cmdline, "PMON_VER=LM")) {
28 if (strstr(arcs_cmdline, "PMON_VER=LM8"))
29 mips_machtype = MACH_LEMOTE_YL2F89;
30 else if (strstr(arcs_cmdline, "PMON_VER=LM6"))
31 mips_machtype = MACH_LEMOTE_FL2F;
32 else if (strstr(arcs_cmdline, "PMON_VER=LM9"))
33 mips_machtype = MACH_LEMOTE_LL2F;
34 else
35 mips_machtype = MACH_LEMOTE_NAS;
36
37 strcat(arcs_cmdline, " machtype=");
38 strcat(arcs_cmdline, get_system_type());
39 strcat(arcs_cmdline, " ");
40 }
41 }