xref: /openbmc/u-boot/board/qemu-mips/qemu-mips.c (revision 15855700)
1 /*
2  * (C) Copyright 2007
3  * Vlad Lungu vlad.lungu@windriver.com
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 
24 #include <common.h>
25 #include <command.h>
26 #include <asm/mipsregs.h>
27 #include <asm/io.h>
28 
29 phys_size_t initdram(int board_type)
30 {
31 	/* Sdram is setup by assembler code */
32 	/* If memory could be changed, we should return the true value here */
33 	return MEM_SIZE*1024*1024;
34 }
35 
36 int checkboard(void)
37 {
38 	u32 proc_id;
39 	u32 config1;
40 
41 	proc_id = read_c0_prid();
42 	printf("Board: Qemu -M mips CPU: ");
43 	switch (proc_id) {
44 	case 0x00018000:
45 		printf("4Kc");
46 		break;
47 	case 0x00018400:
48 		printf("4KEcR1");
49 		break;
50 	case 0x00019000:
51 		printf("4KEc");
52 		break;
53 	case 0x00019300:
54 		config1 = read_c0_config1();
55 		if (config1 & 1)
56 			printf("24Kf");
57 		else
58 			printf("24Kc");
59 		break;
60 	case 0x00019500:
61 		printf("34Kf");
62 		break;
63 	case 0x00000400:
64 		printf("R4000");
65 		break;
66 	case 0x00018100:
67 		config1 = read_c0_config1();
68 		if (config1 & 1)
69 			printf("5Kf");
70 		else
71 			printf("5Kc");
72 		break;
73 	case 0x000182a0:
74 		printf("20Kc");
75 		break;
76 
77 	default:
78 		printf("unknown");
79 	}
80 	printf(" proc_id=0x%x\n", proc_id);
81 
82 	return 0;
83 }
84 
85 int misc_init_r(void)
86 {
87 	set_io_port_base(0);
88 	return 0;
89 }
90