From 5ff7390fcd74fe1cd94d2507cf7c04b1c1eff620 Mon Sep 17 00:00:00 2001 From: Rizwan Qureshi Date: Wed, 24 Aug 2016 20:50:54 +0530 Subject: kunimitsu: Add FSP 2.0 support in romstage Populate mainboard related Memory Init Params i.e, SPD Rcomp values, DQ and DQs values. Change-Id: Id62c43a72a0e34fa2e8d177ce895d395418e2347 Signed-off-by: Rizwan Qureshi Signed-off-by: Naresh G Solanki Reviewed-on: https://review.coreboot.org/16316 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/mainboard/intel/kunimitsu/spd/spd_util.c | 118 +++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 src/mainboard/intel/kunimitsu/spd/spd_util.c (limited to 'src/mainboard/intel/kunimitsu/spd/spd_util.c') diff --git a/src/mainboard/intel/kunimitsu/spd/spd_util.c b/src/mainboard/intel/kunimitsu/spd/spd_util.c new file mode 100644 index 0000000000..0ce2acf6ff --- /dev/null +++ b/src/mainboard/intel/kunimitsu/spd/spd_util.c @@ -0,0 +1,118 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 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. + */ +#include +#include +#include +#include +#include +#include +#include +#include "boardid.h" +#include "spd.h" + +void mainboard_fill_dq_map_data(void *dq_map_ptr) +{ + /* 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_ptr, dq_map, sizeof(dq_map)); +} + +void mainboard_fill_dqs_map_data(void *dqs_map_ptr) +{ + /* 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_ptr, dqs_map, sizeof(dqs_map)); +} + +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[RCOMP_TARGET_PARAMS] = { + 100, 40, 40, 23, 40 }; + + /* Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EE -EGCF */ + static const u16 StrengthendRcompTarget[RCOMP_TARGET_PARAMS] = { + 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; +} -- cgit v1.2.3