| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <assert.h> |
| #include <console/console.h> |
| #include <fsp/util.h> |
| #include <soc/meminit.h> |
| #include <spd_bin.h> |
| #include <string.h> |
| |
| enum dimm_enable_options { |
| ENABLE_BOTH_DIMMS = 0, |
| DISABLE_DIMM0 = 1, |
| DISABLE_DIMM1 = 2, |
| DISABLE_BOTH_DIMMS = 3 |
| }; |
| |
| static void spd_read_from_cbfs(const struct spd_info *spd_info, |
| uintptr_t *spd_data_ptr, size_t *spd_data_len) |
| { |
| struct region_device spd_rdev; |
| size_t spd_index = spd_info->spd_spec.spd_index; |
| |
| printk(BIOS_DEBUG, "SPD INDEX = %lu\n", spd_index); |
| if (get_spd_cbfs_rdev(&spd_rdev, spd_index) < 0) |
| die("spd.bin not found or incorrect index\n"); |
| |
| *spd_data_len = region_device_sz(&spd_rdev); |
| |
| /* Memory leak is ok since we have memory mapped boot media */ |
| assert(CONFIG(BOOT_DEVICE_MEMORY_MAPPED)); |
| |
| *spd_data_ptr = (uintptr_t)rdev_mmap_full(&spd_rdev); |
| } |
| |
| static void get_spd_data(const struct spd_info *spd_info, |
| uintptr_t *spd_data_ptr, size_t *spd_data_len) |
| { |
| if (spd_info->read_type == READ_SPD_MEMPTR) { |
| *spd_data_ptr = spd_info->spd_spec.spd_data_ptr_info.spd_data_ptr; |
| *spd_data_len = spd_info->spd_spec.spd_data_ptr_info.spd_data_len; |
| return; |
| } |
| |
| if (spd_info->read_type == READ_SPD_CBFS) { |
| spd_read_from_cbfs(spd_info, spd_data_ptr, spd_data_len); |
| return; |
| } |
| } |
| |
| static void meminit_dq_dqs_map(FSP_M_CONFIG *mem_cfg, |
| const struct mb_cfg *board_cfg, |
| bool half_populated) |
| { |
| memcpy(&mem_cfg->RcompResistor, &board_cfg->rcomp_resistor, |
| sizeof(mem_cfg->RcompResistor)); |
| |
| memcpy(&mem_cfg->RcompTarget, &board_cfg->rcomp_targets, |
| sizeof(mem_cfg->RcompTarget)); |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh0, &board_cfg->dq_map[DDR_CH0], |
| sizeof(board_cfg->dq_map[DDR_CH0])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh0, &board_cfg->dqs_map[DDR_CH0], |
| sizeof(board_cfg->dqs_map[DDR_CH0])); |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh1, &board_cfg->dq_map[DDR_CH1], |
| sizeof(board_cfg->dq_map[DDR_CH1])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh1, &board_cfg->dqs_map[DDR_CH1], |
| sizeof(board_cfg->dqs_map[DDR_CH1])); |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh2, &board_cfg->dq_map[DDR_CH2], |
| sizeof(board_cfg->dq_map[DDR_CH2])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh2, &board_cfg->dqs_map[DDR_CH2], |
| sizeof(board_cfg->dqs_map[DDR_CH2])); |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh3, &board_cfg->dq_map[DDR_CH3], |
| sizeof(board_cfg->dq_map[DDR_CH3])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh3, &board_cfg->dqs_map[DDR_CH3], |
| sizeof(board_cfg->dqs_map[DDR_CH3])); |
| |
| if (half_populated) |
| return; |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh4, &board_cfg->dq_map[DDR_CH4], |
| sizeof(board_cfg->dq_map[DDR_CH4])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh4, &board_cfg->dqs_map[DDR_CH4], |
| sizeof(board_cfg->dqs_map[DDR_CH4])); |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh5, &board_cfg->dq_map[DDR_CH5], |
| sizeof(board_cfg->dq_map[DDR_CH5])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh5, &board_cfg->dqs_map[DDR_CH5], |
| sizeof(board_cfg->dqs_map[DDR_CH5])); |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh6, &board_cfg->dq_map[DDR_CH6], |
| sizeof(board_cfg->dq_map[DDR_CH6])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh6, &board_cfg->dqs_map[DDR_CH6], |
| sizeof(board_cfg->dqs_map[DDR_CH6])); |
| |
| memcpy(&mem_cfg->DqMapCpu2DramCh7, &board_cfg->dq_map[DDR_CH7], |
| sizeof(board_cfg->dq_map[DDR_CH7])); |
| memcpy(&mem_cfg->DqsMapCpu2DramCh7, &board_cfg->dqs_map[DDR_CH7], |
| sizeof(board_cfg->dqs_map[DDR_CH7])); |
| } |
| |
| static void meminit_channels(FSP_M_CONFIG *mem_cfg, |
| const struct mb_cfg *board_cfg, |
| uintptr_t spd_data_ptr, |
| bool half_populated) |
| { |
| uint8_t dimm_cfg = DISABLE_DIMM1; /* Use only DIMM0 */ |
| |
| /* Channel 0 */ |
| mem_cfg->DisableDimmMc0Ch0 = dimm_cfg; |
| mem_cfg->MemorySpdPtr00 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr01 = 0; |
| |
| /* Channel 1 */ |
| mem_cfg->DisableDimmMc0Ch1 = dimm_cfg; |
| mem_cfg->MemorySpdPtr02 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr03 = 0; |
| |
| /* Channel 2 */ |
| mem_cfg->DisableDimmMc0Ch2 = dimm_cfg; |
| mem_cfg->MemorySpdPtr04 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr05 = 0; |
| |
| /* Channel 3 */ |
| mem_cfg->DisableDimmMc0Ch3 = dimm_cfg; |
| mem_cfg->MemorySpdPtr06 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr07 = 0; |
| |
| if (half_populated) { |
| printk(BIOS_INFO, "%s: DRAM half-populated\n", __func__); |
| dimm_cfg = DISABLE_BOTH_DIMMS; |
| spd_data_ptr = 0; |
| } |
| |
| /* Channel 4 */ |
| mem_cfg->DisableDimmMc1Ch0 = dimm_cfg; |
| mem_cfg->MemorySpdPtr08 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr09 = 0; |
| |
| /* Channel 5 */ |
| mem_cfg->DisableDimmMc1Ch1 = dimm_cfg; |
| mem_cfg->MemorySpdPtr10 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr11 = 0; |
| |
| /* Channel 6 */ |
| mem_cfg->DisableDimmMc1Ch2 = dimm_cfg; |
| mem_cfg->MemorySpdPtr12 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr13 = 0; |
| |
| /* Channel 7 */ |
| mem_cfg->DisableDimmMc1Ch3 = dimm_cfg; |
| mem_cfg->MemorySpdPtr14 = spd_data_ptr; |
| mem_cfg->MemorySpdPtr15 = 0; |
| |
| meminit_dq_dqs_map(mem_cfg, board_cfg, half_populated); |
| } |
| |
| /* Initialize onboard memory configurations for lpddr4x */ |
| void memcfg_init(FSP_M_CONFIG *mem_cfg, |
| const struct mb_cfg *board_cfg, |
| const struct spd_info *spd_info, |
| bool half_populated) |
| { |
| if (spd_info->read_type == READ_SMBUS) { |
| for (int i = 0; i < NUM_DIMM_SLOT; i++) |
| mem_cfg->SpdAddressTable[i] = spd_info->spd_spec.spd_smbus_address[i]; |
| meminit_dq_dqs_map(mem_cfg, board_cfg, half_populated); |
| } else { |
| size_t spd_data_len = 0; |
| uintptr_t spd_data_ptr = 0; |
| |
| memset(&mem_cfg->SpdAddressTable, 0, sizeof(mem_cfg->SpdAddressTable)); |
| get_spd_data(spd_info, &spd_data_ptr, &spd_data_len); |
| |
| mem_cfg->MemorySpdDataLen = spd_data_len; |
| meminit_channels(mem_cfg, board_cfg, spd_data_ptr, half_populated); |
| } |
| |
| mem_cfg->Lp5CccConfig = board_cfg->lp5_ccc_config; |
| mem_cfg->ECT = board_cfg->ect; |
| mem_cfg->UserBd = board_cfg->UserBd; |
| mem_cfg->DqPinsInterleaved = board_cfg->dq_pins_interleaved; |
| } |