| /* |
| * 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 <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <string.h> |
| #include <stdint.h> |
| |
| #include <cpu/amd/amdfam10_sysconf.h> |
| |
| |
| /* Need pci1234 array |
| * pci1234[0] will record sblink and bus range |
| * pci1234[i] will record ht chain i. |
| * It will keep the sequence when some ht io card is not installed. |
| * |
| * 1n: 8 |
| * 2n: 7x2 |
| * 3n: 6x3 |
| * 4n: 5x4 |
| * 5n: 4x5 |
| * 6n: 3x6 |
| * 7n: 2x7 |
| * 8n: 1x8 |
| * |
| * 8n(4x2): 8x4 |
| * 16n(4x4): 16*2 |
| * 20n(4x5): 20x1 |
| * 32n(4x4+4x4): 16x1 |
| * |
| * Total: xxx: I just want to use 32 instead, If you have more, you may need to |
| * reset HC_POSSIBLE_NUM and update ssdt.dsl (hcdn, hclk) |
| * |
| * Put all the possible ht node/link to the list tp pci1234[] in get_bus_conf.c |
| * on MB dir. How about co-processor on socket 1 on 2 way system. |
| * or socket 2, and socket3 on 4 way system? treat that as one hc too! |
| * |
| */ |
| |
| #include "northbridge.h" |
| |
| void get_pci1234(void) |
| { |
| |
| int i,j; |
| u32 dword; |
| |
| dword = sysconf.sblk<<8; |
| dword |= 1; |
| sysconf.pci1234[0] = dword; // sblink |
| sysconf.hcid[0] = 0; |
| |
| /* about hardcode numbering for HT_IO support |
| set the node_id and link_id that could have ht chain in the one array, |
| then check if is enabled.... then update final value |
| */ |
| |
| //here we need to set hcdn |
| //1. hypertransport.c need to record hcdn_reg together with 0xe0, 0xe4, 0xe8, 0xec when are set |
| //2. so at the same time we need update hsdn with hcdn_reg here |
| |
| for (j = 0; j < sysconf.ht_c_num; j++) { |
| u32 dwordx; |
| dwordx = sysconf.ht_c_conf_bus[j]; |
| dwordx &=0xfffffffd; //keep bus num, node_id, link_num, enable bits |
| if ((dwordx & 0x7fd) == dword) { //SBLINK |
| sysconf.pci1234[0] = dwordx; |
| sysconf.hcdn[0] = sysconf.hcdn_reg[j]; |
| continue; |
| } |
| if ((dwordx & 1)) { |
| // We need to find out the number of HC |
| // for exact match |
| for (i = 1; i < sysconf.hc_possible_num; i++) { |
| if ((dwordx & 0x7fc) == (sysconf.pci1234[i] & 0x7fc)) { // same node and same linkn |
| sysconf.pci1234[i] = dwordx; |
| sysconf.hcdn[i] = sysconf.hcdn_reg[j]; |
| break; |
| } |
| } |
| // for 0xffc match or same node |
| for (i = 1; i < sysconf.hc_possible_num; i++) { |
| if ((dwordx & 0x7fc) == (dwordx & sysconf.pci1234[i] & 0x7fc)) { |
| sysconf.pci1234[i] = dwordx; |
| sysconf.hcdn[i] = sysconf.hcdn_reg[j]; |
| break; |
| } |
| } |
| } |
| } |
| |
| for (i = 1; i < sysconf.hc_possible_num; i++) { |
| if (!(sysconf.pci1234[i] & 1)) { |
| sysconf.pci1234[i] = 0; |
| sysconf.hcdn[i] = 0x20202020; |
| } |
| sysconf.hcid[i] = 0; |
| } |
| } |