diff options
Diffstat (limited to 'src/mainboard/gigabyte/m57sli/get_bus_conf.c')
| -rw-r--r-- | src/mainboard/gigabyte/m57sli/get_bus_conf.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/mainboard/gigabyte/m57sli/get_bus_conf.c b/src/mainboard/gigabyte/m57sli/get_bus_conf.c new file mode 100644 index 0000000000..70a56b81b5 --- /dev/null +++ b/src/mainboard/gigabyte/m57sli/get_bus_conf.c @@ -0,0 +1,146 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2007 AMD + * Written by Yinghai Lu <yinghailu@amd.com> for AMD. + * + * 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_mcp55[8]; //1 + unsigned apicid_mcp55; + + +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, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0 +}; +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, +// 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +}; +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; + unsigned sbdn; + + device_t dev; + 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]); + 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<8; i++) { + bus_mcp55[i] = 0; + } + + for(i=0;i<256; i++) { + bus_type[i] = 0; + } + + bus_type[0] = 1; //pci + + bus_mcp55[0] = (sysconf.pci1234[0] >> 16) & 0xff; + + bus_type[bus_mcp55[0]] = 1; + + /* MCP55 */ + dev = dev_find_slot(bus_mcp55[0], PCI_DEVFN(sbdn + 0x06,0)); + if (dev) { + bus_mcp55[1] = pci_read_config8(dev, PCI_SECONDARY_BUS); + bus_mcp55[2] = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + bus_mcp55[2]++; + for(j=bus_mcp55[1];j<bus_mcp55[2]; j++) bus_type[j] = 1; + } + else { + printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x06); + + bus_mcp55[1] = 2; + bus_mcp55[2] = 3; + } + + for(i=2; i<8;i++) { + dev = dev_find_slot(bus_mcp55[0], PCI_DEVFN(sbdn + 0x0a + i - 2 , 0)); + if (dev) { + bus_mcp55[i] = pci_read_config8(dev, PCI_SECONDARY_BUS); + bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + bus_isa++; + for(j=bus_mcp55[i];j<bus_isa; j++) bus_type[j] = 1; + } + else { + printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_mcp55[0], sbdn + 0x0a + i - 2 ); + bus_isa = bus_mcp55[i-1]+1; + } + } + + +/*I/O APICs: APIC ID Version State Address*/ +#if CONFIG_LOGICAL_CPUS==1 + apicid_base = get_apicid_base(1); +#else + apicid_base = CONFIG_MAX_PHYSICAL_CPUS; +#endif + apicid_mcp55 = apicid_base+0; + +} |