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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2004 Tyan Computer
* Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
*
* 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/smbus.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <arch/io.h>
#include "chip.h"
static void nic_init(struct device *dev)
{
u32 dword, old, mac_h = 0, mac_l = 0;
int eeprom_valid = 0;
struct southbridge_nvidia_ck804_config *conf;
static u32 nic_index = 0;
u8 *base;
struct resource *res;
res = find_resource(dev, 0x10);
base = res2mmio(res, 0, 0);
#define NvRegPhyInterface 0xC0
#define PHY_RGMII 0x10000000
write32(base + NvRegPhyInterface, PHY_RGMII);
old = dword = pci_read_config32(dev, 0x30);
dword &= ~(0xf);
dword |= 0xf;
if (old != dword)
pci_write_config32(dev, 0x30, dword);
conf = dev->chip_info;
if (conf->mac_eeprom_smbus != 0) {
/* Read MAC address from EEPROM at first. */
struct device *dev_eeprom;
dev_eeprom = dev_find_slot_on_smbus(conf->mac_eeprom_smbus,
conf->mac_eeprom_addr);
if (dev_eeprom) {
/* If that is valid we will use that. */
unsigned char dat[6];
int i, status;
for (i = 0; i < 6; i++) {
status = smbus_read_byte(dev_eeprom, i);
if (status < 0)
break;
dat[i] = status & 0xff;
}
if (status >= 0) {
mac_l = 0;
for (i = 3; i >= 0; i--) {
mac_l <<= 8;
mac_l += dat[i];
}
if (mac_l != 0xffffffff) {
mac_l += nic_index;
mac_h = 0;
for (i = 5; i >= 4; i--) {
mac_h <<= 8;
mac_h += dat[i];
}
eeprom_valid = 1;
}
}
}
}
/* If that is invalid we will read that from romstrap. */
if (!eeprom_valid) {
u32 *mac_pos;
mac_pos = (u32 *)0xffffffd0; /* See romstrap.inc and romstrap.ld. */
mac_l = read32(mac_pos) + nic_index;
mac_h = read32(mac_pos + 1);
}
#if 1
/* Set that into NIC MMIO. */
#define NvRegMacAddrA 0xA8
#define NvRegMacAddrB 0xAC
write32(base + NvRegMacAddrA, mac_l);
write32(base + NvRegMacAddrB, mac_h);
#else
/* Set that into NIC. */
pci_write_config32(dev, 0xa8, mac_l);
pci_write_config32(dev, 0xac, mac_h);
#endif
nic_index++;
}
static struct device_operations nic_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = nic_init,
.scan_bus = 0,
.ops_pci = &ck804_pci_ops,
};
static const struct pci_driver nic_driver __pci_driver = {
.ops = &nic_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_CK804_NIC,
};
static const struct pci_driver nic_bridge_driver __pci_driver = {
.ops = &nic_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_CK804_NIC_BRIDGE,
};
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