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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 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 <cpu/amd/amdfam12.h>
#include "SbEarly.h"
#include "agesawrapper.h"
/* Global variables for MB layouts and these will be shared by irqtable mptable
* and acpi_tables busnum is default.
*/
u8 bus_isa;
u8 bus_sb900[3];
/*
* 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
*/
u32 pci1234x[] = {
0x0000ff0,
};
/*
* 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
*/
u32 hcdnx[] = {
0x20202020,
};
u32 bus_type[256];
u32 sbdn_sb900;
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;
printk(BIOS_DEBUG, "Mainboard - %s - %s - Start.\n", __FILE__, __func__);
/*
* 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.
*/
printk(BIOS_DEBUG, "agesawrapper_amdinitlate ");
status = agesawrapper_amdinitlate();
if (status)
printk(BIOS_DEBUG, "error level: %x \n", status);
else
printk(BIOS_DEBUG, "passed.\n");
sbdn_sb900 = 0;
for (i = 0; i < 3; i++) {
bus_sb900[i] = 0;
}
for (i = 0; i < 256; i++) {
bus_type[i] = 0; /* default ISA bus. */
}
bus_type[0] = 1; /* pci */
bus_sb900[0] = (pci1234x[0] >> 16) & 0xff;
/* sb900 */
dev = dev_find_slot(bus_sb900[0], PCI_DEVFN(sbdn_sb900 + 0x14, 4));
if (dev) {
bus_sb900[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_isa++;
for (j = bus_sb900[1]; j < bus_isa; j++)
bus_type[j] = 1;
}
for (i = 0; i < 4; i++) {
dev = dev_find_slot(bus_sb900[0],
PCI_DEVFN(sbdn_sb900 + 0x14, i));
if (dev) {
bus_sb900[2 + i] =
pci_read_config8(dev, PCI_SECONDARY_BUS);
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_isa++;
}
}
for (j = bus_sb900[2]; j < bus_isa; j++)
bus_type[j] = 1;
/* I/O APICs: APIC ID Version State Address */
bus_isa = 10;
sb_Late_Post();
printk(BIOS_DEBUG, "Mainboard - %s - %s - End.\n", __FILE__, __func__);
}
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