xref: /rk3399_rockchip-uboot/arch/sh/cpu/sh4/cpu.c (revision 8f0fec74ac6d0f3a7134ccebafa1ed9bd8c712ba)
1*8f0fec74SPeter Tyser /*
2*8f0fec74SPeter Tyser  * (C) Copyright 2007
3*8f0fec74SPeter Tyser  * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
4*8f0fec74SPeter Tyser  *
5*8f0fec74SPeter Tyser  * See file CREDITS for list of people who contributed to this
6*8f0fec74SPeter Tyser  * project.
7*8f0fec74SPeter Tyser  *
8*8f0fec74SPeter Tyser  * This program is free software; you can redistribute it and/or
9*8f0fec74SPeter Tyser  * modify it under the terms of the GNU General Public License as
10*8f0fec74SPeter Tyser  * published by the Free Software Foundation; either version 2 of
11*8f0fec74SPeter Tyser  * the License, or (at your option) any later version.
12*8f0fec74SPeter Tyser  *
13*8f0fec74SPeter Tyser  * This program is distributed in the hope that it will be useful,
14*8f0fec74SPeter Tyser  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15*8f0fec74SPeter Tyser  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16*8f0fec74SPeter Tyser  * GNU General Public License for more details.
17*8f0fec74SPeter Tyser  *
18*8f0fec74SPeter Tyser  * You should have received a copy of the GNU General Public License
19*8f0fec74SPeter Tyser  * along with this program; if not, write to the Free Software
20*8f0fec74SPeter Tyser  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21*8f0fec74SPeter Tyser  * MA 02111-1307 USA
22*8f0fec74SPeter Tyser  */
23*8f0fec74SPeter Tyser 
24*8f0fec74SPeter Tyser #include <common.h>
25*8f0fec74SPeter Tyser #include <command.h>
26*8f0fec74SPeter Tyser #include <netdev.h>
27*8f0fec74SPeter Tyser #include <asm/processor.h>
28*8f0fec74SPeter Tyser #include <asm/cache.h>
29*8f0fec74SPeter Tyser 
30*8f0fec74SPeter Tyser int checkcpu(void)
31*8f0fec74SPeter Tyser {
32*8f0fec74SPeter Tyser 	puts("CPU: SH4\n");
33*8f0fec74SPeter Tyser 	return 0;
34*8f0fec74SPeter Tyser }
35*8f0fec74SPeter Tyser 
36*8f0fec74SPeter Tyser int cpu_init (void)
37*8f0fec74SPeter Tyser {
38*8f0fec74SPeter Tyser 	return 0;
39*8f0fec74SPeter Tyser }
40*8f0fec74SPeter Tyser 
41*8f0fec74SPeter Tyser int cleanup_before_linux (void)
42*8f0fec74SPeter Tyser {
43*8f0fec74SPeter Tyser 	disable_interrupts();
44*8f0fec74SPeter Tyser 	return 0;
45*8f0fec74SPeter Tyser }
46*8f0fec74SPeter Tyser 
47*8f0fec74SPeter Tyser int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
48*8f0fec74SPeter Tyser {
49*8f0fec74SPeter Tyser 	disable_interrupts();
50*8f0fec74SPeter Tyser 	reset_cpu (0);
51*8f0fec74SPeter Tyser 	return 0;
52*8f0fec74SPeter Tyser }
53*8f0fec74SPeter Tyser 
54*8f0fec74SPeter Tyser void flush_cache (unsigned long addr, unsigned long size)
55*8f0fec74SPeter Tyser {
56*8f0fec74SPeter Tyser 	dcache_invalid_range( addr , addr + size );
57*8f0fec74SPeter Tyser }
58*8f0fec74SPeter Tyser 
59*8f0fec74SPeter Tyser void icache_enable (void)
60*8f0fec74SPeter Tyser {
61*8f0fec74SPeter Tyser 	cache_control(0);
62*8f0fec74SPeter Tyser }
63*8f0fec74SPeter Tyser 
64*8f0fec74SPeter Tyser void icache_disable (void)
65*8f0fec74SPeter Tyser {
66*8f0fec74SPeter Tyser 	cache_control(1);
67*8f0fec74SPeter Tyser }
68*8f0fec74SPeter Tyser 
69*8f0fec74SPeter Tyser int icache_status (void)
70*8f0fec74SPeter Tyser {
71*8f0fec74SPeter Tyser 	return 0;
72*8f0fec74SPeter Tyser }
73*8f0fec74SPeter Tyser 
74*8f0fec74SPeter Tyser void dcache_enable (void)
75*8f0fec74SPeter Tyser {
76*8f0fec74SPeter Tyser }
77*8f0fec74SPeter Tyser 
78*8f0fec74SPeter Tyser void dcache_disable (void)
79*8f0fec74SPeter Tyser {
80*8f0fec74SPeter Tyser }
81*8f0fec74SPeter Tyser 
82*8f0fec74SPeter Tyser int dcache_status (void)
83*8f0fec74SPeter Tyser {
84*8f0fec74SPeter Tyser 	return 0;
85*8f0fec74SPeter Tyser }
86*8f0fec74SPeter Tyser 
87*8f0fec74SPeter Tyser int cpu_eth_init(bd_t *bis)
88*8f0fec74SPeter Tyser {
89*8f0fec74SPeter Tyser #ifdef CONFIG_SH_ETHER
90*8f0fec74SPeter Tyser 	sh_eth_initialize(bis);
91*8f0fec74SPeter Tyser #endif
92*8f0fec74SPeter Tyser 	return 0;
93*8f0fec74SPeter Tyser }
94