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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.
*/
#include <device/pci.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <cpu/amd/multicore.h>
#include <cpu/amd/amdfam10_sysconf.h>
#if IS_ENABLED(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.
*/
int bus_isa;
u8 bus_rs780[11];
u8 bus_sb800[6];
u32 apicid_sb800;
/*
* 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 sbdn_rs780;
u32 sbdn_sb800;
extern void get_pci1234(void);
static u32 get_bus_conf_done = 0;
void get_bus_conf(void)
{
u32 apicid_base;
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_pci1234();
sysconf.sbdn = (sysconf.hcdn[0] & 0xff);
sbdn_rs780 = sysconf.sbdn;
sbdn_sb800 = 0;
memset(bus_sb800, 0, sizeof(bus_sb800));
for (i = 0; i < ARRAY_SIZE(bus_rs780); i++) {
bus_rs780[i] = 0;
}
bus_rs780[0] = (sysconf.pci1234[0] >> 16) & 0xff;
bus_sb800[0] = bus_rs780[0];
/* sb800 */
dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x14, 4));
if (dev) {
bus_sb800[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_isa++;
}
for (i = 0; i < 4; i++) {
dev = dev_find_slot(bus_sb800[0], PCI_DEVFN(sbdn_sb800 + 0x15, i));
if (dev) {
bus_sb800[2 + i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_isa++;
}
}
/* rs780 */
for (i = 1; i < ARRAY_SIZE(bus_rs780); i++) {
dev = dev_find_slot(bus_rs780[0], PCI_DEVFN(sbdn_rs780 + i, 0));
if (dev) {
bus_rs780[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
if(255 != bus_rs780[i]) {
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_isa++;
}
}
}
/* I/O APICs: APIC ID Version State Address */
bus_isa = 10;
if (IS_ENABLED(CONFIG_LOGICAL_CPUS))
apicid_base = get_apicid_base(1);
else
apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
apicid_sb800 = apicid_base + 0;
#if IS_ENABLED(CONFIG_AMD_SB_CIMX)
sb_Late_Post();
#endif
}
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