| /* |
| * 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. |
| */ |
| |
| #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; |
| pci_devfn_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; |
| pci_devfn_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 |