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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google 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/device.h>
#include <device/pci.h>
#include <arch/pci_ops.h>
#include <baytrail/pci_devs.h>
#include <baytrail/ramstage.h>
#include "chip.h"
static void pci_domain_set_resources(device_t dev)
{
assign_resources(dev->link_list);
}
static struct device_operations pci_domain_ops = {
.read_resources = pci_domain_read_resources,
.set_resources = pci_domain_set_resources,
.enable_resources = NULL,
.init = NULL,
.scan_bus = pci_domain_scan_bus,
.ops_pci_bus = pci_bus_default_ops,
};
static void cpu_bus_noop(device_t dev) { }
static struct device_operations cpu_bus_ops = {
.read_resources = cpu_bus_noop,
.set_resources = cpu_bus_noop,
.enable_resources = cpu_bus_noop,
.init = baytrail_init_cpus,
.scan_bus = NULL,
};
static void enable_dev(device_t dev)
{
/* Set the operations if it is a special bus type */
if (dev->path.type == DEVICE_PATH_DOMAIN) {
dev->ops = &pci_domain_ops;
} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
dev->ops = &cpu_bus_ops;
} else if (dev->path.type == DEVICE_PATH_PCI) {
/* Handle south cluster enablement. */
if (PCI_SLOT(dev->path.pci.devfn) > GFX_DEV &&
(dev->ops == NULL || dev->ops->enable == NULL)) {
southcluster_enable_dev(dev);
}
}
}
/* Called at BS_DEV_INIT_CHIPS time -- very early. Just after BS_PRE_DEVICE. */
static void soc_init(void *chip_info)
{
baytrail_init_pre_device(chip_info);
}
struct chip_operations soc_intel_baytrail_ops = {
CHIP_NAME("Intel BayTrail SoC")
.enable_dev = enable_dev,
.init = soc_init,
};
static void pci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
if (!vendor || !device) {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
pci_read_config32(dev, PCI_VENDOR_ID));
} else {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
}
struct pci_operations soc_pci_ops = {
.set_subsystem = &pci_set_subsystem,
};
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