xref: /rk3399_rockchip-uboot/arch/sandbox/cpu/cpu.c (revision 6fcc3be4535ac26ce11ba2e0865b615408d3d104)
1 /*
2  * Copyright (c) 2011 The Chromium OS Authors.
3  * See file CREDITS for list of people who contributed to this
4  * project.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19  * MA 02111-1307 USA
20  */
21 
22 #include <common.h>
23 
24 DECLARE_GLOBAL_DATA_PTR;
25 
26 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
27 {
28 	/*
29 	 * This is considered normal termination for now. We wil call os_exit()
30 	 * when available.
31 	 */
32 	return 0;
33 }
34 
35 /* delay x useconds */
36 void __udelay(unsigned long usec)
37 {
38 	/* Ignore this for now */
39 }
40 
41 unsigned long timer_get_us(void)
42 {
43 	return 0;
44 }
45 
46 int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
47 {
48 	return -1;
49 }
50 
51 int cleanup_before_linux(void)
52 {
53 	return 0;
54 }
55 
56 void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
57 {
58 	return (void *)(gd->ram_buf + paddr);
59 }
60 
61 void flush_dcache_range(unsigned long start, unsigned long stop)
62 {
63 }
64