diff options
Diffstat (limited to 'src/soc/intel/denverton_ns/hob_mem.c')
-rw-r--r-- | src/soc/intel/denverton_ns/hob_mem.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/soc/intel/denverton_ns/hob_mem.c b/src/soc/intel/denverton_ns/hob_mem.c new file mode 100644 index 0000000000..c70c22ad98 --- /dev/null +++ b/src/soc/intel/denverton_ns/hob_mem.c @@ -0,0 +1,135 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc. + * Copyright (C) 2015-2016 Intel Corporation. + * Copyright (C) 2017-2018 Online SAS. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <cbmem.h> +#include <console/console.h> +#include <string.h> + +#include <soc/hob_mem.h> + +#include <smbios.h> +#include <memory_info.h> +#include <soc/ramstage.h> + +/* Save the DIMM information for SMBIOS table 17 */ +void soc_save_dimm_info(void) +{ + int channel; + const CHANNEL_INFO *channel_info; + int dimm; + const DIMM_INFO *dimm_info; + int dimm_max; + int index; + struct memory_info *mem_info; + const FSP_SMBIOS_MEMORY_INFO *memory_info_hob; + + /* Get the memory info HOB */ + memory_info_hob = soc_get_fsp_smbios_memory_info_hob(); + + if (memory_info_hob == NULL) + return; + + /* Display the data in the FSP_SMBIOS_MEMORY_INFO HOB */ + if (IS_ENABLED(CONFIG_DISPLAY_HOBS)) + soc_display_fsp_smbios_memory_info_hob(memory_info_hob); + + /* + * Allocate CBMEM area for DIMM information used to populate SMBIOS + * table 17 + */ + mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info)); + printk(BIOS_DEBUG, "CBMEM entry for DIMM info: 0x%p\n", mem_info); + if (mem_info == NULL) + return; + memset(mem_info, 0, sizeof(*mem_info)); + + /* Describe the first N DIMMs in the system */ + index = 0; + dimm_max = ARRAY_SIZE(mem_info->dimm); + for (channel = 0; channel < memory_info_hob->ChannelCount; channel++) { + if (index >= dimm_max) + break; + channel_info = &memory_info_hob->ChannelInfo[channel]; + for (dimm = 0; dimm < channel_info->DimmCount; dimm++) { + if (index >= dimm_max) + break; + dimm_info = &channel_info->DimmInfo[dimm]; + + /* Populate the DIMM information */ + if (!dimm_info->SizeInMb) + continue; + + mem_info->dimm[index].dimm_size = + dimm_info->SizeInMb; + mem_info->dimm[index].ddr_type = + memory_info_hob->MemoryType; + mem_info->dimm[index].ddr_frequency = + memory_info_hob->MemoryFrequencyInMHz; + mem_info->dimm[index].channel_num = + channel_info->ChannelId; + mem_info->dimm[index].dimm_num = + dimm_info->DimmId; + + strncpy((char *) + mem_info->dimm[index].module_part_number, + (char *)dimm_info->ModulePartNum, 18); + mem_info->dimm[index].mod_id = + dimm_info->MfgId; + switch (memory_info_hob->DataWidth) { + default: + case 8: + mem_info->dimm[index].bus_width = + MEMORY_BUS_WIDTH_8; + break; + + case 16: + mem_info->dimm[index].bus_width = + MEMORY_BUS_WIDTH_16; + break; + + case 32: + mem_info->dimm[index].bus_width = + MEMORY_BUS_WIDTH_32; + break; + + case 64: + mem_info->dimm[index].bus_width = + MEMORY_BUS_WIDTH_64; + break; + + case 128: + mem_info->dimm[index].bus_width = + MEMORY_BUS_WIDTH_128; + break; + } + + /* Add any mainboard specific information */ + mainboard_add_dimm_info(mem_info, channel, dimm, index); + index++; + } + } + mem_info->dimm_cnt = index; + printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); +} + +/* Add any mainboard specific information */ +__attribute__((weak)) void mainboard_add_dimm_info(struct memory_info *mem_info, + int channel, int dimm, + int index) +{ + printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__); +} |