| /* SPDX-License-Identifier: GPL-2.0-only */ |
| #include <cbfs.h> |
| #include <console/console.h> |
| #include <device/dram/ddr3.h> |
| #include <spd.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_map("spd.bin", &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_SIZE_MAX_DDR3) |
| die("Missing SPD data."); |
| |
| /* Make sure we did not overrun the buffer */ |
| if (spd_file_len < ((spd_index + 1) * SPD_SIZE_MAX_DDR3)) { |
| printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n"); |
| spd_index = 0; |
| } |
| |
| spd_span = spd_index * SPD_SIZE_MAX_DDR3; |
| 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; |
| } |