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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 <device/smbus.h>
#include <bitops.h>
#include <arch/io.h>
#include "ck804.h"
#include "ck804_smbus.h"
static int lsmbus_recv_byte(device_t dev)
{
unsigned device;
struct resource *res;
struct bus *pbus;
device = dev->path.u.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
return do_smbus_recv_byte(res->base, device);
}
static int lsmbus_send_byte(device_t dev, uint8_t val)
{
unsigned device;
struct resource *res;
struct bus *pbus;
device = dev->path.u.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
return do_smbus_send_byte(res->base, device, val);
}
static int lsmbus_read_byte(device_t dev, uint8_t address)
{
unsigned device;
struct resource *res;
struct bus *pbus;
device = dev->path.u.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
return do_smbus_read_byte(res->base, device, address);
}
static int lsmbus_write_byte(device_t dev, uint8_t address, uint8_t val)
{
unsigned device;
struct resource *res;
struct bus *pbus;
device = dev->path.u.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
return do_smbus_write_byte(res->base, device, address, val);
}
static struct smbus_bus_operations lops_smbus_bus = {
.recv_byte = lsmbus_recv_byte,
.send_byte = lsmbus_send_byte,
.read_byte = lsmbus_read_byte,
.write_byte = lsmbus_write_byte,
};
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 smbus_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = 0,
.scan_bus = scan_static_bus,
// .enable = ck804_enable,
.ops_pci = &lops_pci,
.ops_smbus_bus = &lops_smbus_bus,
};
static const struct pci_driver smbus_driver __pci_driver = {
.ops = &smbus_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_CK804_SM,
};
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