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/*
* Copyright 2004 Tyan Computer
* by yhlu@tyan.com
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "ck804.h"
static void usb1_init(struct device *dev) {
struct southbridge_nvidia_ck804_config const * conf=dev->chip_info;
if (conf->usb1_hc_reset) {
//Somehow the warm reset does not really resets the USB controller.
//Later, during boot, when the Bus Master bit is set, the USB
//controller trashes the memory, causing weird misbehavior.
//Was detected on Sun Ultra40, where mptable was damaged.
uint32_t bar0=pci_read_config32(dev,0x10);
uint32_t* regs=(uint32_t*)(bar0&~0xfff);
regs[2]|=1; //OHCI USB HCCommandStatus Register, HostControllerReset bit
}
}
static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
pci_write_config32(dev, 0x40,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
static struct pci_operations lops_pci = {
.set_subsystem = lpci_set_subsystem,
};
static struct device_operations usb_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = usb1_init,
// .enable = ck804_enable,
.scan_bus = 0,
.ops_pci = &lops_pci,
};
static struct pci_driver usb_driver __pci_driver = {
.ops = &usb_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_CK804_USB,
};
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