1 /* CPU specific code for the LEON3 CPU
2 *
3 * (C) Copyright 2007
4 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25 #include <common.h>
26 #include <watchdog.h>
27 #include <command.h>
28 #include <netdev.h>
29
30 #include <asm/io.h>
31 #include <asm/processor.h>
32
33 DECLARE_GLOBAL_DATA_PTR;
34
35 extern void _reset_reloc(void);
36
checkcpu(void)37 int checkcpu(void)
38 {
39 /* check LEON version here */
40 printf("CPU: LEON3\n");
41 return 0;
42 }
43
44 /* ------------------------------------------------------------------------- */
45
cpu_reset(void)46 void cpu_reset(void)
47 {
48 /* Interrupts off */
49 disable_interrupts();
50
51 /* jump to restart in flash */
52 _reset_reloc();
53 }
54
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * argv[])55 int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
56 {
57 cpu_reset();
58
59 return 1;
60
61 }
62
flash_read64(void * addr)63 u64 flash_read64(void *addr)
64 {
65 return __raw_readq(addr);
66 }
67
68 /* ------------------------------------------------------------------------- */
69
70 #ifdef CONFIG_GRETH
cpu_eth_init(bd_t * bis)71 int cpu_eth_init(bd_t *bis)
72 {
73 return greth_initialize(bis);
74 }
75 #endif
76