blob: ae47716627644f287e52a09baaccba6f56280507 [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* 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/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "amd8111.h"
static void pci_init(struct device *dev)
{
/* Enable pci error detecting */
uint32_t dword;
/* System error enable */
dword = pci_read_config32(dev, 0x04);
dword |= (1<<8); /* System error enable */
dword |= (7<<28); /* Clear possible errors */
pci_write_config32(dev, 0x04, dword);
/* System,Parity,timer,and abort error enable */
dword = pci_read_config32(dev, 0x3c);
dword |= (1<<16); /* Parity */
dword |= (1<<17); /* System */
dword |= (1<<21); /* Master abort */
// dword &= ~(1<<21); /* Master abort */
// dword |= (1<<27); /* Discard timer */
dword &= ~(1<<27); /* Discard timer */
dword |= (1<<26); /* DTSTAT error clear */
pci_write_config32(dev, 0x3c, dword);
/* CRC flood enable */
dword = pci_read_config32(dev, 0xc4);
dword |= (1<<1); /* CRC Flood enable */
dword |= (1<<8); /* Clear any CRC errors */
dword |= (1<<4); /* Clear any LKFAIL errors */
pci_write_config32(dev, 0xc4, dword);
/* Clear possible errors */
dword = pci_read_config32(dev, 0x1c);
dword |= (1<<27); /* STA */
dword |= (1<<28); /* RTA */
dword |= (1<<29); /* RMA */
dword |= (1<<30); /* RSE */
dword |= (1<<31); /* DPE */
dword |= (1<<24); /* MDPE */
pci_write_config32(dev, 0x1c, dword);
}
static struct pci_operations lops_pci = {
.set_subsystem = 0,
};
static struct device_operations pci_ops = {
.read_resources = pci_bus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_bus_enable_resources,
.init = pci_init,
.scan_bus = pci_scan_bridge,
/* PCI Subordinate bus reset is not implemented */
.ops_pci = &lops_pci,
};
static const struct pci_driver pci_driver __pci_driver = {
.ops = &pci_ops,
.vendor = PCI_VENDOR_ID_AMD,
.device = PCI_DEVICE_ID_AMD_8111_PCI,
};