1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* This file is part of the coreboot project.
*
* Copyright 2015 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <symbols.h>
#include <soc/sdram.h>
#define DRAM_TEST_LEN 0x8000000
static void test_ddr(void)
{
if (IS_ENABLED(CONFIG_CYGNUS_SDRAM_TEST_DDR)) {
uint32_t *test_buffer = (uint32_t *) _dram;
uint32_t len = DRAM_TEST_LEN;
uint32_t i;
uint32_t fail_count = 0;
printk(BIOS_INFO, "test ddr start from 0x%p to 0x%p\n", test_buffer,
test_buffer + len);
for (i = 0; i < len; i++)
*(test_buffer + i) = i;
for (i = 0; i < len; i++) {
int val = *(test_buffer + i);
if ((i % 0x10000) == 0)
printk(BIOS_INFO, "#");
if (i != val) {
printk(BIOS_ERR, "\ntest_ddr: @ 0x%p: %d != %d\n",
test_buffer + i, i, val);
fail_count++;
}
}
printk(BIOS_INFO, "\ntest ddr end: fail=%d\n", fail_count);
}
}
void sdram_init(void)
{
printk(BIOS_INFO, "sdram initialization is in progress...\n");
ddr_init2();
printk(BIOS_INFO, "sdram initialization is completed.\n");
test_ddr();
}
|
