blob: b0cac6f0e660e4fbb8c84ca7d6aea50c1a59c03d (
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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/pci_def.h>
#include <device/device.h>
/* warning: Porting.h includes an open #pragma pack(1) */
#include <Porting.h>
#include <AGESA.h>
#include "chip.h"
#include <northbridge/amd/agesa/dimmSpd.h>
/**
* Gets the SMBus address for an SPD from the array in devicetree.cb
* then read the SPD into the supplied buffer.
*/
AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINTN unused2, AGESA_READ_SPD_PARAMS *info)
{
UINT8 spdAddress;
DEVTREE_CONST struct device *dev = pcidev_on_root(0x18, 2);
if (dev == NULL)
return AGESA_ERROR;
DEVTREE_CONST struct northbridge_amd_agesa_family16kb_config *config = dev->chip_info;
if (config == NULL)
return AGESA_ERROR;
if (info->SocketId >= ARRAY_SIZE(config->spdAddrLookup))
return AGESA_ERROR;
if (info->MemChannelId >= ARRAY_SIZE(config->spdAddrLookup[0]))
return AGESA_ERROR;
if (info->DimmId >= ARRAY_SIZE(config->spdAddrLookup[0][0]))
return AGESA_ERROR;
spdAddress = config->spdAddrLookup
[info->SocketId][info->MemChannelId][info->DimmId];
if (spdAddress == 0)
return AGESA_ERROR;
int err = hudson_readSpd(spdAddress, (void *) info->Buffer, 128);
if (err)
return AGESA_ERROR;
return AGESA_SUCCESS;
}
|
