diff options
Diffstat (limited to 'src/mainboard/msi/ms7135/get_bus_conf.c')
| -rw-r--r-- | src/mainboard/msi/ms7135/get_bus_conf.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/mainboard/msi/ms7135/get_bus_conf.c b/src/mainboard/msi/ms7135/get_bus_conf.c new file mode 100644 index 0000000000..e2f868e566 --- /dev/null +++ b/src/mainboard/msi/ms7135/get_bus_conf.c @@ -0,0 +1,127 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007 AMD + * (Written by Yinghai Lu <yinghailu@amd.com> for AMD) + * Copyright (C) 2007 Philipp Degler <pdegler@rumms.uni-mannheim.de> + * (Thanks to LSRA University of Mannheim for their support) + * Copyright (C) 2008 Jonathan A. Kollasch <jakllsch@kollasch.net> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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> +#if CONFIG_LOGICAL_CPUS == 1 +#include <cpu/amd/dualcore.h> +#endif + +#include <cpu/amd/amdk8_sysconf.h> + +/* Global variables for MB layouts and these will be shared by irqtable, + * mptable and acpi_tables. + */ +/* busnum is default */ +unsigned char bus_isa; +unsigned char bus_ck804[6]; +unsigned apicid_ck804; + +unsigned pci1234x[] = { //Here you only need to set value in pci1234 for HT-IO that could be installed or not + //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail + 0x0000ff0, //no HTIO for ms7135 +}; +unsigned hcdnx[] = { //HT Chain device num, actually it is unit id base of every ht device in chain, assume every chain only have 4 ht device at most + 0x20202020, //ms7135 has only one ht-chain +}; +unsigned bus_type[256]; + +extern void get_sblk_pci1234(void); + +static unsigned get_bus_conf_done = 0; + +void get_bus_conf(void) +{ + unsigned apicid_base; + + device_t dev; + unsigned sbdn; + int i, j; + + if (get_bus_conf_done == 1) + return; //do it only once + + get_bus_conf_done = 1; + + sysconf.hc_possible_num = sizeof(pci1234x) / sizeof(pci1234x[0]); + sysconf.hc_possible_num = sizeof(pci1234x) / sizeof(pci1234x[0]); + for (i = 0; i < sysconf.hc_possible_num; i++) { + sysconf.pci1234[i] = pci1234x[i]; + sysconf.hcdn[i] = hcdnx[i]; + } + + get_sblk_pci1234(); + + sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain + sbdn = sysconf.sbdn; + + for (i = 0; i < 6; i++) { + bus_ck804[i] = 0; + } + + for (i = 0; i < 256; i++) { + bus_type[i] = 0; + } + + bus_type[0] = 1; //pci + + bus_ck804[0] = (sysconf.pci1234[0] >> 16) & 0xff; + + bus_type[bus_ck804[0]] = 1; + + /* CK804 */ + int dn = -1; + for (i = 1; i < 4; i++) { + switch (i) { + case 1: dn = 9; break; + case 2: dn = 13; break; + case 3: dn = 14; break; + default: dn = -1; break; + } + dev = dev_find_slot(bus_ck804[0], PCI_DEVFN(sbdn + dn, 0)); + if (dev) { + bus_ck804[i] = pci_read_config8(dev, PCI_SECONDARY_BUS); + bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + bus_isa++; + for (j = bus_ck804[i]; j < bus_isa; j++) + bus_type[j] = 1; + } else { + printk_debug + ("ERROR - could not find PCI %02x:%02x.0, using defaults\n", + bus_ck804[0], sbdn + dn); + bus_isa = bus_ck804[i - 1] + 1; + } + } + +/*I/O APICs: APIC ID Version State Address*/ +#if CONFIG_LOGICAL_CPUS==1 + apicid_base = get_apicid_base(3); +#else + apicid_base = CONFIG_MAX_PHYSICAL_CPUS; +#endif + apicid_ck804 = apicid_base + 0; +} |