| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <assert.h> |
| #include <console/console.h> |
| #include <fsp/util.h> |
| #include <soc/meminit.h> |
| #include <string.h> |
| |
| #define LP4X_CH_WIDTH 16 |
| #define LP4X_CHANNELS CHANNEL_COUNT(LP4X_CH_WIDTH) |
| |
| #define DDR4_CH_WIDTH 64 |
| #define DDR4_CHANNELS CHANNEL_COUNT(DDR4_CH_WIDTH) |
| |
| static const struct soc_mem_cfg soc_mem_cfg[] = { |
| [MEM_TYPE_DDR4] = { |
| .num_phys_channels = DDR4_CHANNELS, |
| .phys_to_mrc_map = { |
| [0] = 0, |
| [1] = 4, |
| }, |
| .md_phy_masks = { |
| /* |
| * Only physical channel 0 is populated in case of half-populated |
| * configuration. |
| */ |
| .half_channel = BIT(0), |
| /* In mixed topologies, channel 0 is always memory-down. */ |
| .mixed_topo = BIT(0), |
| }, |
| }, |
| [MEM_TYPE_LP4X] = { |
| .num_phys_channels = LP4X_CHANNELS, |
| .phys_to_mrc_map = { |
| [0] = 0, |
| [1] = 1, |
| [2] = 2, |
| [3] = 3, |
| [4] = 4, |
| [5] = 5, |
| [6] = 6, |
| [7] = 7, |
| }, |
| .md_phy_masks = { |
| /* |
| * Physical channels 0, 1, 2 and 3 are populated in case of |
| * half-populated configurations. |
| */ |
| .half_channel = BIT(0) | BIT(1) | BIT(2) | BIT(3), |
| /* LP4x does not support mixed topologies. */ |
| }, |
| }, |
| }; |
| |
| static void mem_init_spd_upds(FSP_M_CONFIG *mem_cfg, const struct mem_channel_data *data) |
| { |
| uint32_t *spd_upds[MRC_CHANNELS][CONFIG_DIMMS_PER_CHANNEL] = { |
| [0] = { &mem_cfg->MemorySpdPtr000, &mem_cfg->MemorySpdPtr001, }, |
| [1] = { &mem_cfg->MemorySpdPtr010, &mem_cfg->MemorySpdPtr011, }, |
| [2] = { &mem_cfg->MemorySpdPtr020, &mem_cfg->MemorySpdPtr021, }, |
| [3] = { &mem_cfg->MemorySpdPtr030, &mem_cfg->MemorySpdPtr031, }, |
| [4] = { &mem_cfg->MemorySpdPtr100, &mem_cfg->MemorySpdPtr101, }, |
| [5] = { &mem_cfg->MemorySpdPtr110, &mem_cfg->MemorySpdPtr111, }, |
| [6] = { &mem_cfg->MemorySpdPtr120, &mem_cfg->MemorySpdPtr121, }, |
| [7] = { &mem_cfg->MemorySpdPtr130, &mem_cfg->MemorySpdPtr131, }, |
| }; |
| uint8_t *disable_dimm_upds[MRC_CHANNELS] = { |
| &mem_cfg->DisableDimmMc0Ch0, |
| &mem_cfg->DisableDimmMc0Ch1, |
| &mem_cfg->DisableDimmMc0Ch2, |
| &mem_cfg->DisableDimmMc0Ch3, |
| &mem_cfg->DisableDimmMc1Ch0, |
| &mem_cfg->DisableDimmMc1Ch1, |
| &mem_cfg->DisableDimmMc1Ch2, |
| &mem_cfg->DisableDimmMc1Ch3, |
| }; |
| int ch, dimm; |
| |
| mem_cfg->MemorySpdDataLen = data->spd_len; |
| |
| for (ch = 0; ch < MRC_CHANNELS; ch++) { |
| uint8_t *disable_dimm_ptr = disable_dimm_upds[ch]; |
| *disable_dimm_ptr = 0; |
| |
| for (dimm = 0; dimm < CONFIG_DIMMS_PER_CHANNEL; dimm++) { |
| uint32_t *spd_ptr = spd_upds[ch][dimm]; |
| |
| *spd_ptr = data->spd[ch][dimm]; |
| if (!*spd_ptr) |
| *disable_dimm_ptr |= BIT(dimm); |
| } |
| } |
| } |
| |
| static void mem_init_dq_dqs_upds(void *upds[MRC_CHANNELS], const void *map, size_t upd_size, |
| const struct mem_channel_data *data) |
| { |
| size_t i; |
| |
| for (i = 0; i < MRC_CHANNELS; i++, map += upd_size) { |
| if (channel_is_populated(i, MRC_CHANNELS, data->ch_population_flags)) |
| memcpy(upds[i], map, upd_size); |
| else |
| memset(upds[i], 0, upd_size); |
| } |
| } |
| |
| static void mem_init_dq_upds(FSP_M_CONFIG *mem_cfg, const struct mem_channel_data *data, |
| const struct mb_cfg *mb_cfg) |
| { |
| void *dq_upds[MRC_CHANNELS] = { |
| &mem_cfg->DqMapCpu2DramMc0Ch0, |
| &mem_cfg->DqMapCpu2DramMc0Ch1, |
| &mem_cfg->DqMapCpu2DramMc0Ch2, |
| &mem_cfg->DqMapCpu2DramMc0Ch3, |
| &mem_cfg->DqMapCpu2DramMc1Ch0, |
| &mem_cfg->DqMapCpu2DramMc1Ch1, |
| &mem_cfg->DqMapCpu2DramMc1Ch2, |
| &mem_cfg->DqMapCpu2DramMc1Ch3, |
| }; |
| |
| const size_t upd_size = sizeof(mem_cfg->DqMapCpu2DramMc0Ch0); |
| |
| _Static_assert(sizeof(mem_cfg->DqMapCpu2DramMc0Ch0) == CONFIG_MRC_CHANNEL_WIDTH, |
| "Incorrect DQ UPD size!"); |
| |
| mem_init_dq_dqs_upds(dq_upds, mb_cfg->dq_map, upd_size, data); |
| } |
| |
| static void mem_init_dqs_upds(FSP_M_CONFIG *mem_cfg, const struct mem_channel_data *data, |
| const struct mb_cfg *mb_cfg) |
| { |
| void *dqs_upds[MRC_CHANNELS] = { |
| &mem_cfg->DqsMapCpu2DramMc0Ch0, |
| &mem_cfg->DqsMapCpu2DramMc0Ch1, |
| &mem_cfg->DqsMapCpu2DramMc0Ch2, |
| &mem_cfg->DqsMapCpu2DramMc0Ch3, |
| &mem_cfg->DqsMapCpu2DramMc1Ch0, |
| &mem_cfg->DqsMapCpu2DramMc1Ch1, |
| &mem_cfg->DqsMapCpu2DramMc1Ch2, |
| &mem_cfg->DqsMapCpu2DramMc1Ch3, |
| }; |
| |
| const size_t upd_size = sizeof(mem_cfg->DqsMapCpu2DramMc0Ch0); |
| |
| _Static_assert(sizeof(mem_cfg->DqsMapCpu2DramMc0Ch0) == CONFIG_MRC_CHANNEL_WIDTH / 8, |
| "Incorrect DQS UPD size!"); |
| |
| mem_init_dq_dqs_upds(dqs_upds, mb_cfg->dqs_map, upd_size, data); |
| } |
| |
| void memcfg_init(FSPM_UPD *memupd, const struct mb_cfg *mb_cfg, |
| const struct mem_spd *spd_info, bool half_populated) |
| { |
| struct mem_channel_data data; |
| FSP_M_CONFIG *mem_cfg = &memupd->FspmConfig; |
| |
| if (mb_cfg->type >= ARRAY_SIZE(soc_mem_cfg)) |
| die("Invalid memory type(%x)!\n", mb_cfg->type); |
| |
| mem_populate_channel_data(memupd, &soc_mem_cfg[mb_cfg->type], spd_info, half_populated, |
| &data); |
| mem_init_spd_upds(mem_cfg, &data); |
| mem_init_dq_upds(mem_cfg, &data, mb_cfg); |
| mem_init_dqs_upds(mem_cfg, &data, mb_cfg); |
| |
| mem_cfg->ECT = mb_cfg->ect; |
| |
| switch (mb_cfg->type) { |
| case MEM_TYPE_DDR4: |
| mem_cfg->DqPinsInterleaved = mb_cfg->ddr4_config.dq_pins_interleaved; |
| break; |
| case MEM_TYPE_LP4X: |
| /* LPDDR4x does not allow interleaved memory */ |
| mem_cfg->DqPinsInterleaved = 0; |
| break; |
| default: |
| die("Unsupported memory type(%d)\n", mb_cfg->type); |
| } |
| |
| } |