| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2014 Google Inc. |
| * Copyright (C) 2015 Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc. |
| */ |
| |
| #include <arch/byteorder.h> |
| #include <cbfs.h> |
| #include <console/console.h> |
| #include <string.h> |
| #include <gpio.h> |
| #include <soc/gpio.h> |
| #include <soc/pei_data.h> |
| #include <soc/romstage.h> |
| #include <ec/google/chromeec/ec.h> |
| #include <mainboard/intel/kunimitsu/spd/spd.h> |
| #include <boardid.h> |
| #include <mainboard/intel/kunimitsu/boardid.h> |
| |
| static void mainboard_print_spd_info(uint8_t spd[]) |
| { |
| const int spd_banks[8] = { 8, 16, 32, 64, -1, -1, -1, -1 }; |
| const int spd_capmb[8] = { 1, 2, 4, 8, 16, 32, 64, 0 }; |
| const int spd_rows[8] = { 12, 13, 14, 15, 16, -1, -1, -1 }; |
| const int spd_cols[8] = { 9, 10, 11, 12, -1, -1, -1, -1 }; |
| const int spd_ranks[8] = { 1, 2, 3, 4, -1, -1, -1, -1 }; |
| const int spd_devw[8] = { 4, 8, 16, 32, -1, -1, -1, -1 }; |
| const int spd_busw[8] = { 8, 16, 32, 64, -1, -1, -1, -1 }; |
| char spd_name[SPD_PART_LEN+1] = { 0 }; |
| |
| int banks = spd_banks[(spd[SPD_DENSITY_BANKS] >> 4) & 7]; |
| int capmb = spd_capmb[spd[SPD_DENSITY_BANKS] & 7] * 256; |
| int rows = spd_rows[(spd[SPD_ADDRESSING] >> 3) & 7]; |
| int cols = spd_cols[spd[SPD_ADDRESSING] & 7]; |
| int ranks = spd_ranks[(spd[SPD_ORGANIZATION] >> 3) & 7]; |
| int devw = spd_devw[spd[SPD_ORGANIZATION] & 7]; |
| int busw = spd_busw[spd[SPD_BUS_DEV_WIDTH] & 7]; |
| |
| /* Module type */ |
| printk(BIOS_INFO, "SPD: module type is "); |
| switch (spd[SPD_DRAM_TYPE]) { |
| case SPD_DRAM_DDR3: |
| printk(BIOS_INFO, "DDR3\n"); |
| break; |
| case SPD_DRAM_LPDDR3: |
| printk(BIOS_INFO, "LPDDR3\n"); |
| break; |
| default: |
| printk(BIOS_INFO, "Unknown (%02x)\n", spd[SPD_DRAM_TYPE]); |
| break; |
| } |
| |
| /* Module Part Number */ |
| memcpy(spd_name, &spd[SPD_PART_OFF], SPD_PART_LEN); |
| spd_name[SPD_PART_LEN] = 0; |
| printk(BIOS_INFO, "SPD: module part is %s\n", spd_name); |
| |
| printk(BIOS_INFO, |
| "SPD: banks %d, ranks %d, rows %d, columns %d, density %d Mb\n", |
| banks, ranks, rows, cols, capmb); |
| printk(BIOS_INFO, "SPD: device width %d bits, bus width %d bits\n", |
| devw, busw); |
| |
| if (capmb > 0 && busw > 0 && devw > 0 && ranks > 0) { |
| /* SIZE = DENSITY / 8 * BUS_WIDTH / SDRAM_WIDTH * RANKS */ |
| printk(BIOS_INFO, "SPD: module size is %u MB (per channel)\n", |
| capmb / 8 * busw / devw * ranks); |
| } |
| } |
| |
| /* Copy SPD data for on-board memory */ |
| void mainboard_fill_spd_data(struct pei_data *pei_data) |
| { |
| char *spd_file; |
| size_t spd_file_len; |
| int spd_index, sku_id; |
| |
| gpio_t spd_gpios[] = { |
| GPP_C12, /* PCH_MEM_CONFIG[0] */ |
| GPP_C13, /* PCH_MEM_CONFIG[1] */ |
| GPP_C14, /* PCH_MEM_CONFIG[2] */ |
| GPP_C15, /* PCH_MEM_CONFIG[3] */ |
| }; |
| |
| spd_index = gpio_base2_value(spd_gpios, ARRAY_SIZE(spd_gpios)); |
| /* |
| * XXX: This is incorrect usage.The Board ID should be the revision ID |
| * and not SKU ID but on SCRD it indicates SKU. |
| */ |
| sku_id = board_id(); |
| printk(BIOS_ERR, "SPD index %d\n", spd_index); |
| printk(BIOS_ERR, "Board ID %d\n", sku_id); |
| |
| /* 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; |
| } |
| |
| /* Assume same memory in both channels */ |
| spd_index *= SPD_LEN; |
| memcpy(pei_data->spd_data[0][0], spd_file + spd_index, SPD_LEN); |
| /* |
| * XXX: This is incorrect usage. mem_cfg should be used here instead of |
| * SKU ID. The current implementation of mem_config does not |
| * support channel population. |
| */ |
| |
| if (sku_id != SCRD_SKU1) |
| memcpy(pei_data->spd_data[1][0], spd_file + spd_index, SPD_LEN); |
| |
| /* Make sure a valid SPD was found */ |
| if (pei_data->spd_data[0][0][0] == 0) |
| die("Invalid SPD data."); |
| |
| mainboard_print_spd_info(pei_data->spd_data[0][0]); |
| } |