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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 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 <stdint.h>
#include "mct_d.h"
static void Get_ChannelPS_Cfg0_D(u8 MAAdimms, u8 Speed, u8 MAAload,
u8 DATAAload, u32 *AddrTmgCTL, u32 *ODC_CTL);
void mctGet_PS_Cfg_D(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat, u32 dct)
{
u16 val, valx;
print_tx("dct: ", dct);
print_tx("Speed: ", pDCTstat->Speed);
Get_ChannelPS_Cfg0_D(pDCTstat->MAdimms[dct], pDCTstat->Speed,
pDCTstat->MAload[dct], pDCTstat->DATAload[dct],
&(pDCTstat->CH_ADDR_TMG[dct]), &(pDCTstat->CH_ODC_CTL[dct]));
if (pDCTstat->MAdimms[dct] == 1)
pDCTstat->CH_ODC_CTL[dct] |= 0x20000000; /* 75ohms */
else
pDCTstat->CH_ODC_CTL[dct] |= 0x10000000; /* 150ohms */
pDCTstat->_2Tmode = 1;
/* use byte lane 4 delay for ECC lane */
pDCTstat->CH_EccDQSLike[0] = 0x0504;
pDCTstat->CH_EccDQSScale[0] = 0; /* 100% byte lane 4 */
pDCTstat->CH_EccDQSLike[1] = 0x0504;
pDCTstat->CH_EccDQSScale[1] = 0; /* 100% byte lane 4 */
/*
Overrides and/or exceptions
*/
/* 1) QRx4 needs to adjust CS/ODT setup time */
// FIXME: Add Ax support?
if (mctGet_NVbits(NV_MAX_DIMMS) == 4) {
if (pDCTstat->DimmQRPresent != 0) {
pDCTstat->CH_ADDR_TMG[dct] &= 0xFF00FFFF;
pDCTstat->CH_ADDR_TMG[dct] |= 0x00000000;
if (pDCTstat->MAdimms[dct] == 4) {
pDCTstat->CH_ADDR_TMG[dct] &= 0xFF00FFFF;
pDCTstat->CH_ADDR_TMG[dct] |= 0x002F0000;
if (pDCTstat->Speed == 3 || pDCTstat->Speed == 4) {
pDCTstat->CH_ADDR_TMG[dct] &= 0xFF00FFFF;
pDCTstat->CH_ADDR_TMG[dct] |= 0x00002F00;
if (pDCTstat->MAdimms[dct] == 4)
pDCTstat->CH_ODC_CTL[dct] = 0x00331222;
}
}
}
}
/* 2) DRx4 (R/C-J) @ DDR667 needs to adjust CS/ODT setup time */
if (pDCTstat->Speed == 3 || pDCTstat->Speed == 4) {
val = pDCTstat->Dimmx4Present;
if (dct == 0) {
val &= 0x55;
} else {
val &= 0xAA;
val >>= 1;
}
val &= pDCTstat->DIMMValid;
if (val) {
//FIXME: skip for Ax
valx = pDCTstat->DimmDRPresent;
if (dct == 0) {
valx &= 0x55;
} else {
valx &= 0xAA;
valx >>= 1;
}
val &= valx;
if (val != 0) {
if (mctGet_NVbits(NV_MAX_DIMMS) == 8 ||
pDCTstat->Speed == 3) {
pDCTstat->CH_ADDR_TMG[dct] &= 0xFFFF00FF;
pDCTstat->CH_ADDR_TMG[dct] |= 0x00002F00;
}
}
}
}
pDCTstat->CH_ODC_CTL[dct] = procOdtWorkaround(pDCTstat, dct, pDCTstat->CH_ODC_CTL[dct]);
print_tx("CH_ODC_CTL: ", pDCTstat->CH_ODC_CTL[dct]);
print_tx("CH_ADDR_TMG: ", pDCTstat->CH_ADDR_TMG[dct]);
}
/*===============================================================================
* Vendor is responsible for correct settings.
* M2/Unbuffered 4 Slot - AMD Design Guideline.
*===============================================================================
* #1, BYTE, Speed (DCTStatstruc.Speed) (Secondary Key)
* #2, BYTE, number of Address bus loads on the Channel. (Tershery Key)
* These must be listed in ascending order.
* FFh (0xFE) has special meaning of 'any', and must be listed first for each speed grade.
* #3, DWORD, Address Timing Control Register Value
* #4, DWORD, Output Driver Compensation Control Register Value
* #5, BYTE, Number of DIMMs (Primary Key)
*/
static const u8 Table_ATC_ODC_8D_D[] = {
0xFE, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x22, 0x12, 0x11, 0x00, 1,
0xFE, 0xFF, 0x00, 0x00, 0x37, 0x00, 0x22, 0x12, 0x11, 0x00, 2,
1, 0xFF, 0x00, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x11, 0x00, 3,
2, 0xFF, 0x00, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x11, 0x00, 3,
3, 0xFF, 0x2F, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x11, 0x00, 3,
4, 0xFF, 0x2F, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x33, 0x00, 3,
1, 0xFF, 0x00, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x11, 0x00, 4,
2, 0xFF, 0x00, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x11, 0x00, 4,
3, 0xFF, 0x2F, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x33, 0x00, 4,
4, 0xFF, 0x2F, 0x00, 0x2F, 0x00, 0x22, 0x12, 0x33, 0x00, 4,
0xFF
};
static const u8 Table_ATC_ODC_4D_D[] = {
0xFE, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x22, 0x12, 0x11, 0x00, 1,
0xFE, 0xFF, 0x00, 0x00, 0x37, 0x00, 0x22, 0x12, 0x11, 0x00, 2,
0xFE, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x22, 0x12, 0x11, 0x00, 3,
0xFE, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x22, 0x12, 0x11, 0x00, 4,
0xFF
};
static void Get_ChannelPS_Cfg0_D(u8 MAAdimms, u8 Speed, u8 MAAload,
u8 DATAAload, u32 *AddrTmgCTL, u32 *ODC_CTL)
{
const u8 *p;
*AddrTmgCTL = 0;
*ODC_CTL = 0;
if (mctGet_NVbits(NV_MAX_DIMMS) == 8) {
/* 8 DIMM Table */
p = Table_ATC_ODC_8D_D;
//FIXME Add Ax support
} else {
/* 4 DIMM Table*/
p = Table_ATC_ODC_4D_D;
//FIXME Add Ax support
}
while (*p != 0xFF) {
if ((MAAdimms == *(p+10)) || (*(p+10) == 0xFE)) {
if ((*p == Speed) || (*p == 0xFE)) {
if (MAAload <= *(p+1)) {
*AddrTmgCTL = stream_to_int((u8*)(p+2));
*ODC_CTL = stream_to_int((u8*)(p+6));
break;
}
}
}
p+=11;
}
}
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