blob: 6548d47f67cc200e30b683a26a899c3b842d780c [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
* 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)
*
* 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.
*/
#include <console/console.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#if IS_ENABLED(CONFIG_LOGICAL_CPUS)
#include <cpu/amd/multicore.h>
#endif
#include <stdlib.h>
#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_ck804[6];
unsigned apicid_ck804;
/* 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_pci1234.c for detail */
static u32 pci1234x[] = {
0x0000ff0, 0x0000ff0, 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 */
static unsigned hcdnx[] = {
0x20202020, 0x20202020, 0x20202020,
};
static unsigned get_bus_conf_done = 0;
void get_bus_conf(void)
{
unsigned apicid_base, sbdn;
device_t dev;
int i;
if (get_bus_conf_done == 1)
return; /* Do it only once. */
get_bus_conf_done = 1;
sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
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;
/* CK804 */
dev = dev_find_slot(bus_ck804[0], PCI_DEVFN(sbdn + 0x09, 0));
if (dev) {
bus_ck804[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
bus_ck804[2] = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_ck804[2]++;
} else {
printk
(BIOS_DEBUG, "ERROR - could not find PCI 1:%02x.0, using defaults\n",
sbdn + 0x09);
bus_ck804[1] = 2;
bus_ck804[2] = 3;
}
for (i = 2; i < 6; i++) {
dev = dev_find_slot(bus_ck804[0],
PCI_DEVFN(sbdn + 0x0b + i - 2, 0));
if (dev) {
bus_ck804[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
} else {
printk(BIOS_DEBUG, "ERROR - could not find PCI %02x:%02x.0, using defaults\n",
bus_ck804[0], sbdn + 0x0b + i - 2);
}
}
if (IS_ENABLED(CONFIG_LOGICAL_CPUS)) {
apicid_base = get_apicid_base(1);
printk(BIOS_SPEW, "CONFIG_LOGICAL_CPUS==1: apicid_base: %08x\n", apicid_base);
} else {
apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
printk(BIOS_SPEW, "CONFIG_LOGICAL_CPUS==0: apicid_base: %08x\n", apicid_base);
}
apicid_ck804 = apicid_base + 0;
}