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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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#ifndef RAMINIT_H
#define RAMINIT_H
#if 0
#if CONFIG_DIMM_SUPPORT==0x0110
//FBDIMM REG
/* each channel can have 8 fbdimm */
#define DIMM_SOCKETS 8
struct mem_controller {
u32 node_id;
device_t f0, f1, f2, f3, f4, f5;
/* channelA, channelB belong to DCT0,
* channelC, channelD belong to DCT1
* Each DCT may support one ganged logical FBDIMM ---> 128 bit
* or a single unganged channel --->64 bit
* a DCT can not support 2 unganged channels
* two DCTs can not be ganged
*/
u8 spd_switch_addr;
u8 spd_addr[DIMM_SOCKETS*4];
};
#endif
#endif
//#if (CONFIG_DIMM_SUPPORT & 0x00ff)==0x0004
//DDR2 REG and unbuffered : Socket F 1027 and AM3
/* every channel have 4 DDR2 DIMM for socket F
* 2 for socket M2/M3
* 1 for socket s1g1
*/
#define DIMM_SOCKETS 4
struct mem_controller {
u32 node_id;
device_t f0, f1, f2, f3, f4, f5;
/* channel0 is DCT0 --- channelA
* channel1 is DCT1 --- channelB
* can be ganged, a single dual-channel DCT ---> 128 bit
* or unganged a two single-channel DCTs ---> 64bit
* When the DCTs are ganged, the writes to DCT1 set of registers
* (F2x1XX) are ignored and reads return all 0's
* The exception is the DCT phy registers, F2x[1,0]98, F2x[1,0]9C,
* and all the associated indexed registers, are still
* independently accessiable
*/
/* FIXME: I will only support ganged mode for easy support */
u8 spd_switch_addr;
u8 spd_addr[DIMM_SOCKETS*2];
};
//#endif
#endif
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