blob: a2e9636fcaa62a4fb2a7db2d415bedd37bad8da3 (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <console/console.h>
#include <mainboard/google/cyan/spd/spd_util.h>
/*
* 0b0000 - 4GiB total - 2 x 2GiB Hynix H9CCNNN8GTMLAR-NUD 1600MHz
* 0b0001 - 2GiB total - 1 x 2GiB Hynix H9CCNNN8GTMLAR-NUD 1600MHz
* 0b0010 - 4GiB total - 2 x 2GiB Micron MT52L256M32D1PF-107
* 0b0011 - 2GiB total - 1 x 2GiB Micron MT52L256M32D1PF-107
* 0b0100 - 4GiB total - 2 x 2GiB Samsung K4E8E324EB-EGCF 1600MHz
* 0b0101 - 2GiB total - 1 x 2GiB Samsung K4E8E324EB-EGCF 1600MHz
* 0b0110 - 4GiB total - 2 x 2GiB Hynix H9CCNNN8GTALAR-NUD
* 0b0111 - 2GiB total - 1 x 2GiB Hynix H9CCNNN8GTALAR-NUD
*
*/
static const uint32_t dual_channel_config =
(1 << 0) | (1 << 2) | (1 << 4) | (1 << 6);
int get_variant_spd_index(int ram_id, int *dual)
{
/* Determine if single or dual channel memory system */
*dual = (dual_channel_config & (1 << ram_id)) ? 1 : 0;
/* Display the RAM type */
switch (ram_id) {
case 0:
printk(BIOS_DEBUG, "4GiB Hynix H9CCNNN8GTMLAR-NUD\n");
break;
case 1:
printk(BIOS_DEBUG, "2GiB Hynix H9CCNNN8GTMLAR-NUD\n");
break;
case 2:
printk(BIOS_DEBUG, "4GiB Micron MT52L256M32D1PF-107\n");
break;
case 3:
printk(BIOS_DEBUG, "2GiB Micron MT52L256M32D1PF-107\n");
break;
case 4:
printk(BIOS_DEBUG, "4GiB Samsung K4E8E324EB-EGCF\n");
break;
case 5:
printk(BIOS_DEBUG, "2GiB Samsung K4E8E324EB-EGCF\n");
break;
case 6:
printk(BIOS_DEBUG, "4GiB Hynix H9CCNNN8GTALAR-NUD\n");
break;
case 7:
printk(BIOS_DEBUG, "2GiB Hynix H9CCNNN8GTALAR-NUD\n");
break;
}
/* 1:1 mapping between ram_id and spd_index for kefka */
return ram_id;
}
|
