diff options
Diffstat (limited to 'src/mainboard/tyan/s8226/get_bus_conf.c')
-rw-r--r-- | src/mainboard/tyan/s8226/get_bus_conf.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/mainboard/tyan/s8226/get_bus_conf.c b/src/mainboard/tyan/s8226/get_bus_conf.c new file mode 100644 index 0000000000..5171c45804 --- /dev/null +++ b/src/mainboard/tyan/s8226/get_bus_conf.c @@ -0,0 +1,144 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 - 2012 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 <stdlib.h> +#include "agesawrapper.h" +#if CONFIG_AMD_SB_CIMX +#include <sb_cimx.h> +#endif + + +/* Global variables for MB layouts and these will be shared by irqtable mptable + * and acpi_tables busnum is default. + */ +u8 bus_isa; +u8 bus_sp5100[2]; +u8 bus_sr5650[14]; + + +u32 bus_type[256]; + +u32 sbdn_sr5650; +u32 sbdn_sp5100; + +void get_bus_conf(void); +static u32 get_bus_conf_done = 0; + +void get_bus_conf(void) +{ + u32 status; + + device_t dev; + int i, j; + + if (get_bus_conf_done == 1) + return; /* do it only once */ + + get_bus_conf_done = 1; + + /* + * This is the call to AmdInitLate. It is really in the wrong place, conceptually, + * but functionally within the coreboot model, this is the best place to make the + * call. The logically correct place to call AmdInitLate is after PCI scan is done, + * after the decision about S3 resume is made, and before the system tables are + * written into RAM. The routine that is responsible for writing the tables is + * "write_tables", called near the end of "hardwaremain". There is no platform + * specific entry point between the S3 resume decision point and the call to + * "write_tables", and the next platform specific entry points are the calls to + * the ACPI table write functions. The first of ose would seem to be the right + * place, but other table write functions, e.g. the PIRQ table write function, are + * called before the ACPI tables are written. This routine is called at the beginning + * of each of the write functions called prior to the ACPI write functions, so this + * becomes the best place for this call. + */ + status = agesawrapper_amdinitlate(); + if(status) { + printk(BIOS_DEBUG, "agesawrapper_amdinitlate failed: %x \n", status); + } + + sbdn_sp5100 = 0; + + for (i = 0; i < 0; i++) { + bus_sp5100[i] = 0; + } + for (i = 0; i < ARRAY_SIZE(bus_sr5650); i++) { + bus_sr5650[i] = 0; + } + + for (i = 0; i < 256; i++) { + bus_type[i] = 0; /* default ISA bus. */ + } + + bus_type[0] = 1; /* pci */ + + bus_sr5650[0] = 0; + bus_sp5100[0] = bus_sr5650[0]; + + /* sp5100 */ + dev = dev_find_slot(bus_sp5100[0], PCI_DEVFN(sbdn_sp5100 + 0x14, 4)); + + if (dev) { + bus_sp5100[1] = pci_read_config8(dev, PCI_SECONDARY_BUS); + + bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + bus_isa++; + for (j = bus_sp5100[1]; j < bus_isa; j++) + bus_type[j] = 1; + } + + /* sr5650 */ + for (i = 1; i < ARRAY_SIZE(bus_sr5650); i++) { + dev = dev_find_slot(bus_sr5650[0], PCI_DEVFN(sbdn_sr5650 + i, 0)); + if (dev) { + bus_sr5650[i] = pci_read_config8(dev, PCI_SECONDARY_BUS); + if(255 != bus_sr5650[i]) { + bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + bus_isa++; + bus_type[bus_sr5650[i]] = 1; /* PCI bus. */ + } + } + } + +/* + for (i = 0; i < 4; i++) { + dev = dev_find_slot(bus_sp5100[0], PCI_DEVFN(sbdn_sp5100 + 0x14, i)); + if (dev) { + bus_sp5100[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS); + bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + bus_isa++; + } + } + for (j = bus_sp5100[2]; j < bus_isa; j++) + bus_type[j] = 1; +*/ + + + /* I/O APICs: APIC ID Version State Address */ + bus_isa = 10; + +#if CONFIG_AMD_SB_CIMX + sb_After_Pci_Init(); + sb_Late_Post(); +#endif +} |