diff options
Diffstat (limited to 'src/mainboard/google/lars/pei_data.c')
-rw-r--r-- | src/mainboard/google/lars/pei_data.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/mainboard/google/lars/pei_data.c b/src/mainboard/google/lars/pei_data.c new file mode 100644 index 0000000000..4bfc2f3bea --- /dev/null +++ b/src/mainboard/google/lars/pei_data.c @@ -0,0 +1,63 @@ +/* + * 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 <stdint.h> +#include <string.h> +#include <soc/pei_data.h> +#include <soc/pei_wrapper.h> +#include "boardid.h" + +/* PCH_MEM_CFG[3:0] */ +#define MAX_MEMORY_CONFIG 0x10 +#define RCOMP_TARGET_PARAMS 0x5 + +void mainboard_fill_pei_data(struct pei_data *pei_data) +{ + /* 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 } }; + /* 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 } }; + + /* Rcomp resistor */ + const u16 RcompResistor[3] = { 200, 81, 162 }; + + /* Rcomp target */ + static const u16 RcompTarget[MAX_MEMORY_CONFIG][RCOMP_TARGET_PARAMS] = { + { 100, 40, 40, 23, 40 }, + { 100, 40, 40, 23, 40 }, + { 100, 40, 40, 23, 40 }, + /*Strengthen the Rcomp Target Ctrl for 8GB K4E6E304EE -EGCF*/ + { 100, 40, 40, 21, 40 }, }; + + + memcpy(pei_data->dq_map, dq_map, sizeof(dq_map)); + memcpy(pei_data->dqs_map, dqs_map, sizeof(dqs_map)); + memcpy(pei_data->RcompResistor, RcompResistor, + sizeof(RcompResistor)); + memcpy(pei_data->RcompTarget, &RcompTarget[pei_data->mem_cfg_id][0], + sizeof(RcompTarget[pei_data->mem_cfg_id])); + +} |