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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 <inttypes.h>
#include "mct_d.h"
static void Get_ChannelPS_Cfg0_D(u8 MAAdimms, u8 Speed, u8 MAAload,
u8 DATAAload, u32 *AddrTmgCTL, u32 *ODC_CTL,
u8 *CMDmode);
void mctGet_PS_Cfg_D(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat, u32 dct)
{
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]),
&pDCTstat->_2Tmode);
if (pDCTstat->MAdimms[dct] == 1)
pDCTstat->CH_ODC_CTL[dct] |= 0x20000000; /* 75ohms */
else
pDCTstat->CH_ODC_CTL[dct] |= 0x10000000; /* 150ohms */
/*
* Overrides and/or workarounds
*/
pDCTstat->CH_ODC_CTL[dct] = procOdtWorkaround(pDCTstat, dct, pDCTstat->CH_ODC_CTL[dct]);
print_tx("4 CH_ODC_CTL: ", pDCTstat->CH_ODC_CTL[dct]);
print_tx("4 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)
* #2, BYTE, number of Address bus loads on the Channel.
* These must be listed in ascending order.
* FFh (-1) 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
*/
static const u8 Table_ATC_ODC_D_Bx[] = {
1, 0xFF, 0x00, 0x2F, 0x2F, 0x0, 0x22, 0x13, 0x11, 0x0,
2, 12, 0x00, 0x2F, 0x2F, 0x0, 0x22, 0x13, 0x11, 0x0,
2, 16, 0x00, 0x2F, 0x00, 0x0, 0x22, 0x13, 0x11, 0x0,
2, 20, 0x00, 0x2F, 0x38, 0x0, 0x22, 0x13, 0x11, 0x0,
2, 24, 0x00, 0x2F, 0x37, 0x0, 0x22, 0x13, 0x11, 0x0,
2, 32, 0x00, 0x2F, 0x34, 0x0, 0x22, 0x13, 0x11, 0x0,
3, 12, 0x20, 0x22, 0x20, 0x0, 0x22, 0x13, 0x11, 0x0,
3, 16, 0x20, 0x22, 0x30, 0x0, 0x22, 0x13, 0x11, 0x0,
3, 20, 0x20, 0x22, 0x2C, 0x0, 0x22, 0x13, 0x11, 0x0,
3, 24, 0x20, 0x22, 0x2A, 0x0, 0x22, 0x13, 0x11, 0x0,
3, 32, 0x20, 0x22, 0x2B, 0x0, 0x22, 0x13, 0x11, 0x0,
4, 0xFF, 0x20, 0x25, 0x20, 0x0, 0x22, 0x33, 0x11, 0x0,
5, 0xFF, 0x20, 0x20, 0x2F, 0x0, 0x22, 0x32, 0x11, 0x0,
0xFF
};
static void Get_ChannelPS_Cfg0_D(u8 MAAdimms, u8 Speed, u8 MAAload,
u8 DATAAload, u32 *AddrTmgCTL, u32 *ODC_CTL,
u8 *CMDmode)
{
u8 const *p;
*AddrTmgCTL = 0;
*ODC_CTL = 0;
*CMDmode = 1;
// FIXME: add Ax support
if (MAAdimms == 0) {
*ODC_CTL = 0x00111222;
if (Speed == 3)
*AddrTmgCTL = 0x00202220;
else if (Speed == 2)
*AddrTmgCTL = 0x002F2F00;
else if (Speed == 1)
*AddrTmgCTL = 0x002F2F00;
else if (Speed == 4)
*AddrTmgCTL = 0x00202520;
else if (Speed == 5)
*AddrTmgCTL = 0x002F2020;
else
*AddrTmgCTL = 0x002F2F2F;
} else if (MAAdimms == 1) {
if (Speed == 4) {
*CMDmode = 2;
*AddrTmgCTL = 0x00202520;
*ODC_CTL = 0x00113222;
} else if (Speed == 5) {
*CMDmode = 2;
*AddrTmgCTL = 0x002F2020;
*ODC_CTL = 0x00113222;
} else {
*CMDmode = 1;
*ODC_CTL = 0x00111222;
if (Speed == 3) {
*AddrTmgCTL = 0x00202220;
} else if (Speed == 2) {
if (MAAload == 4)
*AddrTmgCTL = 0x002B2F00;
else if (MAAload == 16)
*AddrTmgCTL = 0x002B2F00;
else if (MAAload == 8)
*AddrTmgCTL = 0x002F2F00;
else
*AddrTmgCTL = 0x002F2F00;
} else if (Speed == 1) {
*AddrTmgCTL = 0x002F2F00;
} else if (Speed == 5) {
*AddrTmgCTL = 0x002F2020;
} else {
*AddrTmgCTL = 0x002F2F2F;
}
}
} else {
*CMDmode = 2;
p = Table_ATC_ODC_D_Bx;
do {
if (Speed == *p) {
if (MAAload <= *(p+1)) {
*AddrTmgCTL = stream_to_int(p+2);
*ODC_CTL = stream_to_int(p+6);
break;
}
}
p+=10;
} while (0xFF == *p);
}
}
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