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 
mach_prom_init_machtype(void)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 }
42