/* SPDX-License-Identifier: GPL-2.0-only */ #include <cbfs.h> #include <console/console.h> #include <stdint.h> #include <string.h> #include "boardid.h" #include "spd.h" void mainboard_fill_dq_map_data(void *dq_map_ch0, void *dq_map_ch1) { /* DQ byte map */ const u8 dq_map[2][12] = { { 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0, 0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 }, { 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0, 0x0F, 0x00, 0xFF, 0x00, 0xFF, 0x00 } }; memcpy(dq_map_ch0, dq_map[0], sizeof(dq_map[0])); memcpy(dq_map_ch1, dq_map[1], sizeof(dq_map[1])); } void mainboard_fill_dqs_map_data(void *dqs_map_ch0, void *dqs_map_ch1) { /* DQS CPU<>DRAM map */ const u8 dqs_map[2][8] = { { 0, 1, 3, 2, 6, 5, 4, 7 }, { 2, 3, 0, 1, 6, 7, 4, 5 } }; memcpy(dqs_map_ch0, dqs_map[0], sizeof(dqs_map[0])); memcpy(dqs_map_ch1, dqs_map[1], sizeof(dqs_map[1])); } void mainboard_fill_rcomp_res_data(void *rcomp_ptr) { /* Rcomp resistor */ const u16 RcompResistor[3] = { 200, 81, 162 }; memcpy(rcomp_ptr, RcompResistor, sizeof(RcompResistor)); } void mainboard_fill_rcomp_strength_data(void *rcomp_strength_ptr) { int mem_cfg_id; mem_cfg_id = get_spd_index(); /* Rcomp target */ static const u16 RcompTarget[5] = { 100, 40, 40, 23, 40 }; /* Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EE -EGCF */ static const u16 StrengthendRcompTarget[5] = { 100, 40, 40, 21, 40 }; if (mem_cfg_id == K4E6E304EE_MEM_ID) { memcpy(rcomp_strength_ptr, StrengthendRcompTarget, sizeof(StrengthendRcompTarget)); } else { memcpy(rcomp_strength_ptr, RcompTarget, sizeof(RcompTarget)); } } uintptr_t mainboard_get_spd_data(void) { char *spd_file; int spd_index, spd_span; size_t spd_file_len; spd_index = get_spd_index(); printk(BIOS_INFO, "SPD index %d\n", spd_index); /* Load SPD data from CBFS */ spd_file = cbfs_boot_map_with_leak("spd.bin", CBFS_TYPE_SPD, &spd_file_len); if (!spd_file) die("SPD data not found."); /* make sure we have at least one SPD in the file. */ if (spd_file_len < SPD_LEN) die("Missing SPD data."); /* Make sure we did not overrun the buffer */ if (spd_file_len < ((spd_index + 1) * SPD_LEN)) { printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n"); spd_index = 0; } spd_span = spd_index * SPD_LEN; return (uintptr_t)(spd_file + spd_span); } int mainboard_has_dual_channel_mem(void) { int spd_index; spd_index = get_spd_index(); if (spd_index != HYNIX_SINGLE_CHAN && spd_index != SAMSUNG_SINGLE_CHAN && spd_index != MIC_SINGLE_CHAN) { printk(BIOS_INFO, "Dual channel SPD detected writing second channel\n"); return 1; } return 0; }