xref: /openbmc/u-boot/arch/nios2/cpu/cpu.c (revision 5a75e121)
1 /*
2  * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
3  * Scott McNutt <smcnutt@psyent.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 <nios2.h>
26 #include <nios2-io.h>
27 
28 #if defined (CONFIG_SYS_NIOS_SYSID_BASE)
29 extern void display_sysid (void);
30 #endif /* CONFIG_SYS_NIOS_SYSID_BASE */
31 
32 int checkcpu (void)
33 {
34 	printf ("CPU   : Nios-II\n");
35 #if !defined(CONFIG_SYS_NIOS_SYSID_BASE)
36 	printf ("SYSID : <unknown>\n");
37 #else
38 	display_sysid ();
39 #endif
40 	return (0);
41 }
42 
43 int do_reset(void)
44 {
45 	disable_interrupts();
46 	/* indirect call to go beyond 256MB limitation of toolchain */
47 	nios2_callr(CONFIG_SYS_RESET_ADDR);
48 	return 0;
49 }
50