Gitiles
Code Review Sign In
review.coreboot.org / coreboot / b3a8cc54dbaf833c590a56f912209a5632b71f49 / . / src / soc / intel / denverton_ns / hob_mem.c
blob: c70c22ad987ce67b1908121ecbdd785b9c9e1768 [file] [log] [blame]
Julien Viard de Galbert2d0aaa72018-02-26 18:32:59 +0100[diff] [blame]1/*
2 * This file is part of the coreboot project.
3 *
4 * Copyright (C) 2014 Google Inc.
5 * Copyright (C) 2015-2016 Intel Corporation.
6 * Copyright (C) 2017-2018 Online SAS.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 */
17
18#include <cbmem.h>
19#include <console/console.h>
20#include <string.h>
21
22#include <soc/hob_mem.h>
23
24#include <smbios.h>
25#include <memory_info.h>
26#include <soc/ramstage.h>
27
28/* Save the DIMM information for SMBIOS table 17 */
29void soc_save_dimm_info(void)
30{
31 int channel;
32 const CHANNEL_INFO *channel_info;
33 int dimm;
34 const DIMM_INFO *dimm_info;
35 int dimm_max;
36 int index;
37 struct memory_info *mem_info;
38 const FSP_SMBIOS_MEMORY_INFO *memory_info_hob;
39
40 /* Get the memory info HOB */
41 memory_info_hob = soc_get_fsp_smbios_memory_info_hob();
42
43 if (memory_info_hob == NULL)
44 return;
45
46 /* Display the data in the FSP_SMBIOS_MEMORY_INFO HOB */
47 if (IS_ENABLED(CONFIG_DISPLAY_HOBS))
48 soc_display_fsp_smbios_memory_info_hob(memory_info_hob);
49
50 /*
51 * Allocate CBMEM area for DIMM information used to populate SMBIOS
52 * table 17
53 */
54 mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info));
55 printk(BIOS_DEBUG, "CBMEM entry for DIMM info: 0x%p\n", mem_info);
56 if (mem_info == NULL)
57 return;
58 memset(mem_info, 0, sizeof(*mem_info));
59
60 /* Describe the first N DIMMs in the system */
61 index = 0;
62 dimm_max = ARRAY_SIZE(mem_info->dimm);
63 for (channel = 0; channel < memory_info_hob->ChannelCount; channel++) {
64 if (index >= dimm_max)
65 break;
66 channel_info = &memory_info_hob->ChannelInfo[channel];
67 for (dimm = 0; dimm < channel_info->DimmCount; dimm++) {
68 if (index >= dimm_max)
69 break;
70 dimm_info = &channel_info->DimmInfo[dimm];
71
72 /* Populate the DIMM information */
73 if (!dimm_info->SizeInMb)
74 continue;
75
76 mem_info->dimm[index].dimm_size =
77 dimm_info->SizeInMb;
78 mem_info->dimm[index].ddr_type =
79 memory_info_hob->MemoryType;
80 mem_info->dimm[index].ddr_frequency =
81 memory_info_hob->MemoryFrequencyInMHz;
82 mem_info->dimm[index].channel_num =
83 channel_info->ChannelId;
84 mem_info->dimm[index].dimm_num =
85 dimm_info->DimmId;
86
87 strncpy((char *)
88 mem_info->dimm[index].module_part_number,
89 (char *)dimm_info->ModulePartNum, 18);
90 mem_info->dimm[index].mod_id =
91 dimm_info->MfgId;
92 switch (memory_info_hob->DataWidth) {
93 default:
94 case 8:
95 mem_info->dimm[index].bus_width =
96 MEMORY_BUS_WIDTH_8;
97 break;
98
99 case 16:
100 mem_info->dimm[index].bus_width =
101 MEMORY_BUS_WIDTH_16;
102 break;
103
104 case 32:
105 mem_info->dimm[index].bus_width =
106 MEMORY_BUS_WIDTH_32;
107 break;
108
109 case 64:
110 mem_info->dimm[index].bus_width =
111 MEMORY_BUS_WIDTH_64;
112 break;
113
114 case 128:
115 mem_info->dimm[index].bus_width =
116 MEMORY_BUS_WIDTH_128;
117 break;
118 }
119
120 /* Add any mainboard specific information */
121 mainboard_add_dimm_info(mem_info, channel, dimm, index);
122 index++;
123 }
124 }
125 mem_info->dimm_cnt = index;
126 printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt);
127}
128
129/* Add any mainboard specific information */
130__attribute__((weak)) void mainboard_add_dimm_info(struct memory_info *mem_info,
131 int channel, int dimm,
132 int index)
133{
134 printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__);
135}