diff options
Diffstat (limited to 'src/northbridge/amd/amdfam10/get_pci1234.c')
| -rw-r--r-- | src/northbridge/amd/amdfam10/get_pci1234.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdfam10/get_pci1234.c b/src/northbridge/amd/amdfam10/get_pci1234.c new file mode 100644 index 0000000000..0ef4b73bed --- /dev/null +++ b/src/northbridge/amd/amdfam10/get_pci1234.c @@ -0,0 +1,118 @@ +/* + * This file is part of the LinuxBIOS 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#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. Also, don't forget to increase the ACPI_SSDTX_NUM etc if you have + * too much SSDT. 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! + * + */ + + +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 +// printk_debug("sysconf.ht_c_num = %02d\n", sysconf.ht_c_num); + + for(j=0;j<sysconf.ht_c_num;j++) { + u32 dwordx; + dwordx = sysconf.ht_c_conf_bus[j]; +// printk_debug("sysconf.ht_c_conf_bus[%02d] = %08x\n", j, 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; + } +} |