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/*
* Copyright 2004 Tyan Computer
* by yhlu@tyan.com
*/
#include <console/console.h>
#include <arch/io.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "ck804.h"
static uint32_t final_reg;
static device_t find_lpc_dev( device_t dev, unsigned devfn)
{
device_t lpc_dev;
lpc_dev = dev_find_slot(dev->bus->secondary, devfn);
if ( !lpc_dev ) return lpc_dev;
if ((lpc_dev->vendor != PCI_VENDOR_ID_NVIDIA) || (
(lpc_dev->device != PCI_DEVICE_ID_NVIDIA_CK804_LPC) &&
(lpc_dev->device != PCI_DEVICE_ID_NVIDIA_CK804_PRO) &&
(lpc_dev->device != PCI_DEVICE_ID_NVIDIA_CK804_SLAVE)) ) {
uint32_t id;
id = pci_read_config32(lpc_dev, PCI_VENDOR_ID);
if ( (id != (PCI_VENDOR_ID_NVIDIA | (PCI_DEVICE_ID_NVIDIA_CK804_LPC << 16))) &&
(id != (PCI_VENDOR_ID_NVIDIA | (PCI_DEVICE_ID_NVIDIA_CK804_PRO << 16))) &&
(id != (PCI_VENDOR_ID_NVIDIA | (PCI_DEVICE_ID_NVIDIA_CK804_SLAVE << 16)))
) {
lpc_dev = 0;
}
}
return lpc_dev;
}
void ck804_enable(device_t dev)
{
device_t lpc_dev;
unsigned index = 0;
unsigned index2 = 0;
uint32_t reg_old, reg;
uint8_t byte;
unsigned deviceid;
unsigned vendorid;
struct southbridge_nvidia_ck804_config *conf;
conf = dev->chip_info;
unsigned devfn;
if(dev->device==0x0000) {
vendorid = pci_read_config32(dev, PCI_VENDOR_ID);
deviceid = (vendorid>>16) & 0xffff;
// vendorid &= 0xffff;
} else {
// vendorid = dev->vendor;
deviceid = dev->device;
}
devfn = (dev->path.u.pci.devfn) & ~7;
switch(deviceid) {
case PCI_DEVICE_ID_NVIDIA_CK804_SM:
index = 16;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_USB:
devfn -= (1<<3);
index = 8;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_USB2:
devfn -= (1<<3);
index = 20;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_NIC:
devfn -= (9<<3);
index = 10;
dev->rom_address = conf->nic_rom_address;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_NIC_BRIDGE:
devfn -= (9<<3);
index = 10;
dev->rom_address = conf->nic_rom_address;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_ACI:
devfn -= (3<<3);
index = 12;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_MCI:
devfn -= (3<<3);
index = 13;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_IDE:
devfn -= (5<<3);
index = 14;
dev->rom_address = conf->raid_rom_address;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_SATA0:
devfn -= (6<<3);
index = 22;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_SATA1:
devfn -= (7<<3);
index = 18;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_PCI:
devfn -= (8<<3);
index = 15;
break;
case PCI_DEVICE_ID_NVIDIA_CK804_PCI_E:
devfn -= (0xa<<3);
index2 = 19;
break;
default:
index = 0;
}
if(index2!=0) {
int i;
for(i=0;i<4;i++) {
lpc_dev = find_lpc_dev(dev, devfn - (i<<3));
if(!lpc_dev) continue;
index2 -= i;
break;
}
if ( lpc_dev ) {
reg_old = reg = pci_read_config32(lpc_dev, 0xe4);
if (!dev->enabled) {
reg |= (1<<index2);
}
if (reg != reg_old) {
pci_write_config32(lpc_dev, 0xe4, reg);
}
}
index2 = 0;
return;
}
lpc_dev = find_lpc_dev(dev, devfn);
if ( !lpc_dev ) return;
if ( index == 0) {
final_reg = pci_read_config32(lpc_dev, 0xe8);
final_reg &= ~((1<<16)|(1<<8)|(1<<20)|(1<<10)|(1<<12)|(1<<13)|(1<<14)|(1<<22)|(1<<18)|(1<<15));
pci_write_config32(lpc_dev, 0xe8, final_reg);
reg_old = reg = pci_read_config32(lpc_dev, 0xe4);
reg |= (1<<20);
if (reg != reg_old) {
pci_write_config32(lpc_dev, 0xe4, reg);
}
byte = pci_read_config8(lpc_dev, 0x74);
byte |= ((1<<1));
pci_write_config8(dev, 0x74, byte);
byte = pci_read_config8(lpc_dev, 0xdd);
byte |= ((1<<0)|(1<<3));
pci_write_config8(dev, 0xdd, byte);
return;
}
if (!dev->enabled) {
final_reg |= (1 << index);
}
if(index == 10 ) {
reg_old = pci_read_config32(lpc_dev, 0xe8);
if (final_reg != reg_old) {
pci_write_config32(lpc_dev, 0xe8, final_reg);
}
}
}
struct chip_operations southbridge_nvidia_ck804_ops = {
CHIP_NAME("NVIDIA CK804 Southbridge")
.enable_dev = ck804_enable,
};
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