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/* SPDX-License-Identifier: GPL-2.0-only */
#include <assert.h>
#include <fsp/api.h>
#include <soc/romstage.h>
#include <soc/meminit.h>
#include "vpd.h"
static const struct mb_cfg ddr5_mem_config = {
.type = MEM_TYPE_DDR5,
.rcomp = {
/* Baseboard uses only 100ohm Rcomp resistor */
.resistor = 100,
/* Baseboard Rcomp target values */
.targets = { 50, 30, 30, 30, 27 },
},
.ect = true, /* Early Command Training */
.UserBd = BOARD_TYPE_MOBILE,
.LpDdrDqDqsReTraining = 1,
.ddr_config = {
.dq_pins_interleaved = false,
}
};
void mainboard_memory_init_params(FSPM_UPD *memupd)
{
const struct mb_cfg *mem_config = &ddr5_mem_config;
const bool half_populated = false;
const struct mem_spd dimm_module_spd_info = {
.topo = MEM_TOPO_DIMM_MODULE,
.smbus = {
[0] = {
.addr_dimm[0] = 0x50,
},
[1] = {
.addr_dimm[0] = 0x52,
},
},
};
memcfg_init(memupd, mem_config, &dimm_module_spd_info, half_populated);
/* Apply profile-specific settings */
switch (get_emi_eeprom_vpd()->profile) {
case ATLAS_PROF_REALTIME_PERFORMANCE:
memupd->FspmConfig.HyperThreading = 0;
memupd->FspmConfig.DisPgCloseIdleTimeout = 1;
memupd->FspmConfig.PowerDownMode = 0;
memupd->FspmConfig.DisableStarv2medPrioOnNewReq = 1;
break;
}
/* Enable Audio */
memupd->FspmConfig.PchHdaAudioLinkHdaEnable = 1;
memupd->FspmConfig.PchHdaSdiEnable[0] = 1;
memupd->FspmConfig.PchHdaSdiEnable[1] = 1;
// CPU rootports do not have a ClockReq connected on Atlas. If this is not done,
// the following will happens:
// - FSP will enable power management for cpu rootport.
// - coreboot enables ASPM on CPU root port on pci enemuration
// - machine exception is thrown, when trying to access pci configuration space after
// enabling ASPM src/device/pciexp_device.c:pciexp_tune_dev().
memupd->FspmConfig.CpuPcieRpClockReqMsgEnable[0] = 0;
memupd->FspmConfig.CpuPcieRpClockReqMsgEnable[1] = 0;
memupd->FspmConfig.CpuPcieRpClockReqMsgEnable[2] = 0;
// shared clock
memupd->FspmConfig.PcieClkSrcUsage[0] = 0x80;
memupd->FspmConfig.PcieClkSrcClkReq[0] = 0xFF;
// i225
memupd->FspmConfig.PcieClkSrcUsage[1] = 9; // RP 10
memupd->FspmConfig.PcieClkSrcClkReq[1] = 1;
// FIX Apparently Rootports don't like the idea of not having a clksrc and clkreq
// attached to it. For example if we set PcieClkSrcClkReq[1] above to 0xFF (unused)
// it will not come back out of L1. You can easily test this on windows by trying to
// update the i225 driver in device manager or use setpci in Linux to set Device in D3.
// The same applies to all other rootports no matter which devices are connected to it.
// Therefore we put each rootport (that does not have a clkreq, clksrc)
// to a not connected (not routed out) clksrc and clkreq. That seems to be a current FSP Bug.
// workaround and will be removed as soon as FSP is fixed.
memupd->FspmConfig.PcieClkSrcUsage[2] = 4; // Rootport 5
memupd->FspmConfig.PcieClkSrcClkReq[2] = 0;
memupd->FspmConfig.PcieClkSrcUsage[3] = 5; // Rootport 6
memupd->FspmConfig.PcieClkSrcClkReq[3] = 0;
memupd->FspmConfig.PcieClkSrcUsage[4] = 8; // Rootport 9
memupd->FspmConfig.PcieClkSrcClkReq[4] = 0;
memupd->FspmConfig.PcieClkSrcUsage[5] = 6; // Rootport 7
memupd->FspmConfig.PcieClkSrcClkReq[5] = 0;
memupd->FspmConfig.PcieClkSrcUsage[6] = 7; // Rootport 8
memupd->FspmConfig.PcieClkSrcClkReq[6] = 0;
}
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