| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <assert.h> |
| #include <fsp/api.h> |
| #include <soc/romstage.h> |
| #include <soc/meminit.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); |
| |
| /* 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; |
| } |