blob: c6c1ded26d1cb545b1d09298ddc877a51f227096 (
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
58
59
60
61
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <mainboard/google/cyan/spd/spd_util.h>
/* We use RAM_ID3 to indicate dual channel config.
*
* 0b0000 - 2GiB total - 1 x 2GiB Samsung K4E8E304EE-EGCF 1600MHz
* 0b0001 - 2GiB total - 1 x 2GiB Hynix H9CCNNN8GTMLAR-NUD 1600MHz
* 0b0010 - 2GiB total - 1 x 2GiB Micron MT52L256M32D1PF-107 1600MHz
* 0b0011 - 2GiB total - 1 x 2GiB Samsung K4E8E324EB-EGCF 1600MHz
* 0b0100 - 2GiB total - 1 x 2GiB Micron EDF8132A3MA-JD-F 1600MHz
* 0b0101 - 2GiB total - 1 x 2GiB Hynix H9CCNNN8JTBLAR-NUD-1G-1866 1866MHz
* 0b0110 - 2GiB total - 1 x 2GiB Hynix H9CCNNN8GTALAR-NUD 1600MHz
*
* 0b1000 - 4GiB total - 2 x 2GiB Samsung K4E8E304EE-EGCF 1600MHz
* 0b1001 - 4GiB total - 2 x 2GiB Hynix H9CCNNN8GTMLAR-NUD 1600MHz
* 0b1010 - 4GiB total - 2 x 2GiB Micron MT52L256M32D1PF-107 1600MHz
* 0b1011 - 4GiB total - 2 x 2GiB Samsung K4E8E324EB-EGCF 1600MHz
* 0b1100 - 4GiB total - 2 x 2GiB Micron EDF8132A3MA-JD-F 1600MHz
* 0b1101 - 4GiB total - 2 x 2GiB Hynix H9CCNNN8JTBLAR-NUD-1G-1866 1866MHz
* 0b1110 - 4GiB total - 2 x 2GiB Hynix H9CCNNN8GTALAR-NUD 1600MHz
*
*/
int get_variant_spd_index(int ram_id, int *dual)
{
int spd_index = ram_id & 0x7;
/* Determine if single or dual channel memory system */
/* RAMID3 is deterministic for relm */
*dual = ((ram_id >> 3) & 0x1) ? 1 : 0;
/* Display the RAM type */
printk(BIOS_DEBUG, *dual ? "4GiB " : "2GiB ");
switch (spd_index) {
case 0:
printk(BIOS_DEBUG, "Samsung K4E8E304EE-EGCF\n");
break;
case 1:
printk(BIOS_DEBUG, "Hynix H9CCNNN8GTMLAR-NUD\n");
break;
case 2:
printk(BIOS_DEBUG, "Micron MT52L256M32D1PF-107\n");
break;
case 3:
printk(BIOS_DEBUG, "Samsung K4E8E324EB-EGCF\n");
break;
case 4:
printk(BIOS_DEBUG, "Micron EDF8132A3MA-JD-F\n");
break;
case 5:
printk(BIOS_DEBUG, "Hynix H9CCNNN8JTBLAR-NUD-1G\n");
break;
case 6:
printk(BIOS_DEBUG, "H9CCNNN8GTALAR-NUD\n");
break;
}
return spd_index;
}
|
