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
|
/*
* Copyright (C) 2012-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <libfdt.h>
#include <linux/err.h>
DECLARE_GLOBAL_DATA_PTR;
static const void *get_memory_reg_prop(const void *fdt, int *lenp)
{
int offset;
offset = fdt_path_offset(fdt, "/memory");
if (offset < 0)
return NULL;
return fdt_getprop(fdt, offset, "reg", lenp);
}
int dram_init(void)
{
const fdt32_t *val;
int len;
val = get_memory_reg_prop(gd->fdt_blob, &len);
if (len < sizeof(*val))
return -EINVAL;
gd->ram_size = fdt32_to_cpu(*(val + 1));
debug("DRAM size = %08lx\n", (unsigned long)gd->ram_size);
return 0;
}
void dram_init_banksize(void)
{
const fdt32_t *val;
int len, i;
val = get_memory_reg_prop(gd->fdt_blob, &len);
if (len < 0)
return;
len /= sizeof(*val);
len /= 2;
for (i = 0; i < len; i++) {
gd->bd->bi_dram[i].start = fdt32_to_cpu(*val++);
gd->bd->bi_dram[i].size = fdt32_to_cpu(*val++);
debug("DRAM bank %d: start = %08lx, size = %08lx\n",
i, (unsigned long)gd->bd->bi_dram[i].start,
(unsigned long)gd->bd->bi_dram[i].size);
}
}
|
