xref: /openbmc/u-boot/arch/sh/cpu/sh4/cpu.c (revision 1e52fea3)
1 /*
2  * (C) Copyright 2007
3  * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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 <netdev.h>
27 #include <asm/processor.h>
28 #include <asm/cache.h>
29 
30 int checkcpu(void)
31 {
32 	puts("CPU: SH4\n");
33 	return 0;
34 }
35 
36 int cpu_init (void)
37 {
38 	return 0;
39 }
40 
41 int cleanup_before_linux (void)
42 {
43 	disable_interrupts();
44 	return 0;
45 }
46 
47 int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
48 {
49 	disable_interrupts();
50 	reset_cpu (0);
51 	return 0;
52 }
53 
54 void flush_cache (unsigned long addr, unsigned long size)
55 {
56 	dcache_invalid_range( addr , addr + size );
57 }
58 
59 void icache_enable (void)
60 {
61 	cache_control(0);
62 }
63 
64 void icache_disable (void)
65 {
66 	cache_control(1);
67 }
68 
69 int icache_status (void)
70 {
71 	return 0;
72 }
73 
74 void dcache_enable (void)
75 {
76 }
77 
78 void dcache_disable (void)
79 {
80 }
81 
82 int dcache_status (void)
83 {
84 	return 0;
85 }
86 
87 int cpu_eth_init(bd_t *bis)
88 {
89 #ifdef CONFIG_SH_ETHER
90 	sh_eth_initialize(bis);
91 #endif
92 	return 0;
93 }
94