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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; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
u8 mct_checkNumberOfDqsRcvEn_Pass(u8 pass)
{
return 1;
}
u32 SetupDqsPattern_PassA(u8 Pass)
{
u32 ret;
if (Pass == FirstPass)
ret = (u32) TestPattern1_D;
else
ret = (u32) TestPattern2_D;
return ret;
}
u32 SetupDqsPattern_PassB(u8 Pass)
{
u32 ret;
if (Pass == FirstPass)
ret = (u32) TestPattern0_D;
else
ret = (u32) TestPattern2_D;
return ret;
}
u8 mct_Get_Start_RcvrEnDly_Pass(struct DCTStatStruc *pDCTstat,
u8 Channel, u8 Receiver,
u8 Pass)
{
u8 RcvrEnDly;
if (Pass == FirstPass)
RcvrEnDly = 0;
else {
u8 max = 0;
u8 val;
u8 i;
u8 *p = pDCTstat->persistentData.CH_D_B_RCVRDLY[Channel][Receiver>>1];
u8 bn;
bn = 8;
for (i = 0; i < bn; i++) {
val = p[i];
if (val > max) {
max = val;
}
}
RcvrEnDly = max;
}
return RcvrEnDly;
}
u16 mct_Average_RcvrEnDly_Pass(struct DCTStatStruc *pDCTstat,
u16 RcvrEnDly, u16 RcvrEnDlyLimit,
u8 Channel, u8 Receiver, u8 Pass)
{
u8 i;
u16 *p;
u16 *p_1;
u16 val;
u16 val_1;
u8 valid = 1;
u8 bn;
bn = 8;
p = pDCTstat->persistentData.CH_D_B_RCVRDLY[Channel][Receiver>>1];
if (Pass == SecondPass) { /* second pass must average values */
/* FIXME: which byte? */
p_1 = pDCTstat->B_RCVRDLY_1;
/* p_1 = pDCTstat->persistentData.CH_D_B_RCVRDLY_1[Channel][Receiver>>1]; */
for (i = 0; i < bn; i++) {
val = p[i];
/* left edge */
if (val != (RcvrEnDlyLimit - 1)) {
val -= Pass1MemClkDly;
val_1 = p_1[i];
val += val_1;
val >>= 1;
p[i] = val;
} else {
valid = 0;
break;
}
}
if (!valid) {
pDCTstat->ErrStatus |= 1<<SB_NORCVREN;
} else {
pDCTstat->DimmTrainFail &= ~(1<<(Receiver + Channel));
}
} else {
for (i = 0; i < bn; i++) {
val = p[i];
/* Add 1/2 Memlock delay */
/* val += Pass1MemClkDly; */
val += 0x5; /* NOTE: middle value with DQSRCVEN_SAVED_GOOD_TIMES */
/* val += 0x02; */
p[i] = val;
pDCTstat->DimmTrainFail &= ~(1<<(Receiver + Channel));
}
}
return RcvrEnDly;
}
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