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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* 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.
*/
/* AM3/ASB2/C32/G34 DDR3 */
#include <arch/cpu.h>
#include <inttypes.h>
#include "mct_d.h"
#include "mct_d_gcc.h"
static uint8_t is_fam15h(void)
{
uint8_t fam15h = 0;
uint32_t family;
family = cpuid_eax(0x80000001);
family = ((family & 0xf00000) >> 16) | ((family & 0xf00) >> 8);
if (family >= 0x6f)
/* Family 15h or later */
fam15h = 1;
return fam15h;
}
static void Get_ChannelPS_Cfg0_D(u8 MAAdimms, u8 Speed, u8 MAAload,
u32 *ODC_CTL,
u8 *CMDmode);
void mctGet_PS_Cfg_D(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat, u32 dct)
{
if (is_fam15h()) {
pDCTstat->CH_ADDR_TMG[dct] = fam15h_address_timing_compensation_code(pDCTstat, dct);
pDCTstat->CH_ODC_CTL[dct] = fam15h_output_driver_compensation_code(pDCTstat, dct);
pDCTstat->_2Tmode = fam15h_slow_access_mode(pDCTstat, dct);
} else {
Get_ChannelPS_Cfg0_D(pDCTstat->MAdimms[dct], pDCTstat->Speed,
pDCTstat->MAload[dct],
&(pDCTstat->CH_ODC_CTL[dct]),
&pDCTstat->_2Tmode);
if (pDCTstat->Status & (1 << SB_Registered)) {
pDCTstat->_2Tmode = 1; /* Disable slow access mode */
}
pDCTstat->CH_ADDR_TMG[dct] = fam10h_address_timing_compensation_code(pDCTstat, dct);
pDCTstat->CH_ODC_CTL[dct] |= 0x20000000; /* 60ohms */
}
pDCTstat->CH_EccDQSLike[0] = 0x0403;
pDCTstat->CH_EccDQSScale[0] = 0x70;
pDCTstat->CH_EccDQSLike[1] = 0x0403;
pDCTstat->CH_EccDQSScale[1] = 0x70;
}
/*
* In: MAAdimms - number of DIMMs on the channel
* : Speed - Speed (see DCTStatstruc.Speed for definition)
* : MAAload - number of address bus loads on the channel
* Out: AddrTmgCTL - Address Timing Control Register Value
* : ODC_CTL - Output Driver Compensation Control Register Value
* : CMDmode - CMD mode
*/
static void Get_ChannelPS_Cfg0_D(u8 MAAdimms, u8 Speed, u8 MAAload,
u32 *ODC_CTL,
u8 *CMDmode)
{
*ODC_CTL = 0;
*CMDmode = 1;
if (MAAdimms == 1) {
*ODC_CTL = 0x00113222;
*CMDmode = 1;
} else /* if (MAAdimms == 0) */ {
if (Speed == 4) {
*CMDmode = 1;
} else if (Speed == 5) {
*CMDmode = 1;
} else if (Speed == 6) {
*CMDmode = 2;
} else {
*CMDmode = 2;
}
*ODC_CTL = 0x00223323;
}
}
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