1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
4  * Author: Fuxin Zhang, zhangfx@lemote.com
5  */
6 #include <linux/export.h>
7 #include <linux/init.h>
8 
9 #include <asm/wbflush.h>
10 #include <asm/bootinfo.h>
11 
12 #include <loongson.h>
13 
14 #ifdef CONFIG_VT
15 #include <linux/console.h>
16 #include <linux/screen_info.h>
17 #endif
18 
wbflush_loongson(void)19 static void wbflush_loongson(void)
20 {
21 	asm(".set\tpush\n\t"
22 	    ".set\tnoreorder\n\t"
23 	    ".set mips3\n\t"
24 	    "sync\n\t"
25 	    "nop\n\t"
26 	    ".set\tpop\n\t"
27 	    ".set mips0\n\t");
28 }
29 
30 void (*__wbflush)(void) = wbflush_loongson;
31 EXPORT_SYMBOL(__wbflush);
32 
plat_mem_setup(void)33 void __init plat_mem_setup(void)
34 {
35 #ifdef CONFIG_VT
36 #if defined(CONFIG_VGA_CONSOLE)
37 	conswitchp = &vga_con;
38 
39 	screen_info = (struct screen_info) {
40 		.orig_x			= 0,
41 		.orig_y			= 25,
42 		.orig_video_cols	= 80,
43 		.orig_video_lines	= 25,
44 		.orig_video_isVGA	= VIDEO_TYPE_VGAC,
45 		.orig_video_points	= 16,
46 	};
47 #elif defined(CONFIG_DUMMY_CONSOLE)
48 	conswitchp = &dummy_con;
49 #endif
50 #endif
51 }
52