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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015-2016 Advanced Micro Devices, Inc.
*
* 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 <chip.h>
#include <amdblocks/agesawrapper.h>
#define DIMMS_PER_CHANNEL 1
#if DIMMS_PER_CHANNEL > MAX_DIMMS_PER_CH
#error "Too many DIMM sockets defined for the mainboard"
#endif
static const PSO_ENTRY DDR4PlatformMemoryConfiguration[] = {
DRAM_TECHNOLOGY(ANY_SOCKET, DDR4_TECHNOLOGY),
NUMBER_OF_DIMMS_SUPPORTED(ANY_SOCKET, ANY_CHANNEL, DIMMS_PER_CHANNEL),
NUMBER_OF_CHANNELS_SUPPORTED(ANY_SOCKET, MAX_DRAM_CH),
MOTHER_BOARD_LAYERS(LAYERS_6),
MEMCLK_DIS_MAP(ANY_SOCKET, ANY_CHANNEL,
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00),
CKE_TRI_MAP(ANY_SOCKET, ANY_CHANNEL, 0xff, 0xff, 0xff, 0xff),
ODT_TRI_MAP(ANY_SOCKET, ANY_CHANNEL, 0xff, 0xff, 0xff, 0xff),
CS_TRI_MAP(ANY_SOCKET, ANY_CHANNEL,
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00),
PSO_END
};
void OemPostParams(AMD_POST_PARAMS *PostParams)
{
PostParams->MemConfig.PlatformMemoryConfiguration =
(PSO_ENTRY *)DDR4PlatformMemoryConfiguration;
/*
* Bank interleaving is enabled by default in AGESA. However, from AMD's
* explanation, bank interleaving is really chip select interleave,
* requiring 2 chip select arriving to the DIMM (rank interleaving). As
* both kahlee and grunt are hardware limited to a single chip select
* arriving at the DIMM, interleave will not work. This causes AGESA to
* throw a warning. To avoid the warning, interleaving needs to be
* disabled.
*/
PostParams->MemConfig.EnableBankIntlv = FALSE;
}
void set_board_env_params(GNB_ENV_CONFIGURATION *params)
{
params->EDPv1_4VSMode = EDP_VS_HIGH_VDIFF_MODE;
}
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