blob: 19b520fda00b797a8a54b76c151956dd45265ea5 [file] [log] [blame]
/*
* 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.
*/
#include <console/console.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <string.h>
#include <stdint.h>
#include <cpu/amd/multicore.h>
#include <cpu/amd/amdk8_sysconf.h>
#include <stdlib.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;
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
};
static unsigned get_bus_conf_done = 0;
void get_bus_conf(void)
{
unsigned apicid_base;
struct device *dev;
unsigned sbdn;
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);
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;
}
bus_ck804[0] = (sysconf.pci1234[0] >> 16) & 0xff;
/* 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);
}
}
/*I/O APICs: APIC ID Version State Address*/
if (IS_ENABLED(CONFIG_LOGICAL_CPUS))
apicid_base = get_apicid_base(3);
else
apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
apicid_ck804 = apicid_base + 0;
}