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/* SPDX-License-Identifier: GPL-2.0-only */
#include <assert.h>
#include <arch/romstage.h>
#include <console/console.h>
#include <cbmem.h>
#include <fsp/api.h>
#include <fsp/util.h>
#include <hob_iiouds.h>
#include <hob_memmap.h>
#include <pc80/mc146818rtc.h>
#include <soc/ddr.h>
#include <soc/romstage.h>
#include <soc/pci_devs.h>
#include <soc/intel/common/smbios.h>
#include <stdbool.h>
#include <string.h>
#include "chip.h"
/*
* Address of the MRC status byte in CMOS. Should be reserved
* in mainboards' cmos.layout and not covered by checksum.
*/
#define CMOS_OFFSET_MRC_STATUS 0x47
#if CONFIG(USE_OPTION_TABLE)
#include "option_table.h"
#if CMOS_VSTART_mrc_status != CMOS_OFFSET_MRC_STATUS * 8
#error "CMOS start for CPX-SP MRC status byte is not correct, check your cmos.layout"
#endif
#if CMOS_VLEN_mrc_status != 8
#error "CMOS length for CPX-SP MRC status byte is not correct, check your cmos.layout"
#endif
#endif
void __weak mainboard_memory_init_params(FSPM_UPD *mupd)
{
/* Default weak implementation */
}
static const struct SystemMemoryMapHob *get_system_memory_map(void)
{
size_t hob_size;
const uint8_t mem_hob_guid[16] = FSP_SYSTEM_MEMORYMAP_HOB_GUID;
const struct SystemMemoryMapHob **memmap_addr;
memmap_addr = (const struct SystemMemoryMapHob **)
fsp_find_extension_hob_by_guid(mem_hob_guid, &hob_size);
/* hob_size is the size of the 8-byte address not the hob data */
assert(memmap_addr && hob_size != 0);
/* assert the pointer to the hob is not NULL */
assert(*memmap_addr);
return *memmap_addr;
}
static uint8_t get_error_correction_type(const uint8_t RasModesEnabled)
{
switch (RasModesEnabled) {
case CH_INDEPENDENT:
return MEMORY_ARRAY_ECC_SINGLE_BIT;
case FULL_MIRROR_1LM:
case PARTIAL_MIRROR_1LM:
case FULL_MIRROR_2LM:
case PARTIAL_MIRROR_2LM:
return MEMORY_ARRAY_ECC_MULTI_BIT;
case RK_SPARE:
return MEMORY_ARRAY_ECC_SINGLE_BIT;
case CH_LOCKSTEP:
return MEMORY_ARRAY_ECC_SINGLE_BIT;
default:
return MEMORY_ARRAY_ECC_MULTI_BIT;
}
}
/* Save the DIMM information for SMBIOS table 17 */
void save_dimm_info(void)
{
struct dimm_info *dest_dimm;
struct memory_info *mem_info;
const struct SystemMemoryMapHob *hob;
MEMMAP_DIMM_DEVICE_INFO_STRUCT src_dimm;
int dimm_max, index = 0, num_dimms = 0;
uint32_t vdd_voltage;
hob = get_system_memory_map();
assert(hob);
/*
* Allocate CBMEM area for DIMM information used to populate SMBIOS
* table 17
*/
mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info));
if (!mem_info) {
printk(BIOS_ERR, "CBMEM entry for DIMM info missing\n");
return;
}
memset(mem_info, 0, sizeof(*mem_info));
/* According to Dear Customer Letter it's 1.12 TB per processor. */
mem_info->max_capacity_mib = 1.12 * MiB * CONFIG_MAX_SOCKET;
mem_info->number_of_devices = CONFIG_DIMM_MAX;
mem_info->ecc_type = get_error_correction_type(hob->RasModesEnabled);
dimm_max = ARRAY_SIZE(mem_info->dimm);
vdd_voltage = get_ddr_voltage(hob->DdrVoltage);
/* For now only implement for one socket and hard-coded for DDR4 */
for (int ch = 0; ch < MAX_CH; ch++) {
for (int dimm = 0; dimm < MAX_IMC; dimm++) {
src_dimm = hob->Socket[0].ChannelInfo[ch].DimmInfo[dimm];
if (src_dimm.Present) {
if (index >= dimm_max) {
printk(BIOS_WARNING, "Too many DIMMs info for %s.\n",
__func__);
return;
}
dest_dimm = &mem_info->dimm[index];
dest_dimm->max_speed_mts =
get_max_memory_speed(src_dimm.commonTck);
dest_dimm->configured_speed_mts = hob->memFreq;
dimm_info_fill(dest_dimm,
src_dimm.DimmSize << 6,
0x1a, /* hard-coded memory device type as DDR4 */
hob->memFreq, /* replaced by configured_speed_mts */
src_dimm.NumRanks,
ch, /* for mainboard locator string override */
dimm, /* for mainboard locator string override */
(const char *)&src_dimm.PartNumber[0],
sizeof(src_dimm.PartNumber),
(const uint8_t *)&src_dimm.serialNumber[0],
64, /* hard-coded for DDR4 data width */
vdd_voltage,
true, /* hard-coded as ECC supported */
src_dimm.VendorID,
src_dimm.actKeyByte2,
0);
index++;
num_dimms++;
} else if (mainboard_dimm_slot_exists(0, ch, dimm)) {
if (index >= dimm_max) {
printk(BIOS_WARNING, "Too many DIMMs info for %s.\n",
__func__);
return;
}
dest_dimm = &mem_info->dimm[index];
dest_dimm->dimm_size = 0;
dest_dimm->channel_num = ch;
dest_dimm->dimm_num = dimm;
index++;
}
}
}
/* Save available DIMM slot information */
mem_info->dimm_cnt = index;
printk(BIOS_DEBUG, "%d out of %d DIMMs found\n", num_dimms, mem_info->dimm_cnt);
}
static void set_cmos_mrc_cold_boot_flag(bool cold_boot_required)
{
uint8_t mrc_status = cmos_read(CMOS_OFFSET_MRC_STATUS);
uint8_t new_mrc_status = (mrc_status & 0xfe) | cold_boot_required;
printk(BIOS_SPEW, "MRC status: 0x%02x want 0x%02x\n", mrc_status, new_mrc_status);
if (new_mrc_status != mrc_status) {
cmos_write(new_mrc_status, CMOS_OFFSET_MRC_STATUS);
}
}
void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
{
FSP_M_CONFIG *m_cfg = &mupd->FspmConfig;
const struct device *dev;
const config_t *config = config_of_soc();
/* ErrorLevel - 0 (disable) to 8 (verbose) */
m_cfg->DebugPrintLevel = 8;
/* BoardId 0x1D is for CooperCity reference platform */
m_cfg->BoardId = 0x1D;
/* Bitmask for valid sockets supported by the board */
m_cfg->BoardTypeBitmask = 0x11111111;
m_cfg->mmiohBase = 0x2000;
/* default: 0x1 (enable), set to 0x2 (auto) */
m_cfg->KtiPrefetchEn = 0x2;
/* default: all 8 sockets enabled */
for (int i = 2; i < 8; ++i)
m_cfg->KtiFpgaEnable[i] = 0;
/* default: 0x1 (enable), set to 0x0 (disable) */
m_cfg->IsKtiNvramDataReady = 0x0;
/*
* Sub Numa(Non-Uniform Memory Access) Clustering ID and NUMA memory Assignment
* default: 0x1 (enable), set to 0x0 (disable)
*/
m_cfg->SncEn = 0x0;
/* default: 0x1 (enable), set to 0x2 (auto) */
m_cfg->DirectoryModeEn = 0x2;
/* default: 0x1 (enable), set to 0x0 (disable) */
m_cfg->WaSerializationEn = 0x0;
/* default: 0x0 (disable), set to 0x2 (auto) */
m_cfg->XptRemotePrefetchEn = 0x2;
/* default: 0x0 (disable), set to 0x1 (enable) */
m_cfg->highGap = 0x1;
/* the wait time in units of 1000us for PBSP to check in */
m_cfg->WaitTimeForPSBP = 0x7530;
/* Needed to avoid FSP-M reset. The default value of 0x01 is for MinPlatform */
m_cfg->PchAdrEn = 0x02;
/* Make all IIO PCIe ports and port menus visible */
m_cfg->PEXPHIDE = 0x0;
m_cfg->HidePEXPMenu = 0x0;
/* Enable PCH thermal device in FSP, the definition of ThermalDeviceEnable is
0: Disable, 1: Enabled in PCI mode, 2: Enabled in ACPI mode */
dev = pcidev_path_on_root(PCH_DEVFN_THERMAL);
m_cfg->ThermalDeviceEnable = dev && dev->enabled;
/* Enable VT-d according to DTB */
m_cfg->VtdSupport = config->vtd_support;
m_cfg->X2apic = config->x2apic;
/* Disable ISOC */
m_cfg->isocEn = 0;
mainboard_memory_init_params(mupd);
/* Adjust the "cold boot required" flag in CMOS. */
set_cmos_mrc_cold_boot_flag(!mupd->FspmArchUpd.NvsBufferPtr);
}
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