blob: d768041e705ff1f5f3c1588da52623c42f0bcbc6 [file] [log] [blame]
/*
* This file is part of the coreboot 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.
*/
#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 (shared by irqtable/mptable/acpi_table). */
// busnum is default.
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.
*/
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,
};
static unsigned get_bus_conf_done = 0;
void get_bus_conf(void)
{
unsigned int apicid_base, sbdn;
struct device *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 < 8; i++)
bus_mcp55[i] = 0;
bus_mcp55[0] = (sysconf.pci1234[0] >> 16) & 0xff;
/* 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]++;
} else {
printk
(BIOS_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);
}
}
/* I/O APICs: APIC ID Version State Address */
if (IS_ENABLED(CONFIG_LOGICAL_CPUS))
apicid_base = get_apicid_base(1);
else
apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
apicid_mcp55 = apicid_base + 0;
}