/*
 * Copyright  2005 AMD
 *  by yinghai.lu@amd.com
 */

#include "bcm5785_smbus.h"

#define SMBUS_IO_BASE 0x1000

static void enable_smbus(void)
{
	device_t dev;
	dev = pci_locate_device(PCI_ID(0x1166, 0x0205), 0); // 0x0201?

	if (dev == PCI_DEV_INVALID) {
		die("SMBUS controller not found\n");
	}
	
	print_debug("SMBus controller enabled\n");
	/* set smbus iobase */
	pci_write_config32(dev, 0x90, SMBUS_IO_BASE | 1);
	/* Set smbus iospace enable */ 
	pci_write_config8(dev, 0xd2, 0x03);
	/* clear any lingering errors, so the transaction will run */
	outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
}

static int smbus_recv_byte(unsigned device)
{
        return do_smbus_recv_byte(SMBUS_IO_BASE, device);
}

static int smbus_send_byte(unsigned device, unsigned char val)
{
        return do_smbus_send_byte(SMBUS_IO_BASE, device, val);
}

static int smbus_read_byte(unsigned device, unsigned address)
{
        return do_smbus_read_byte(SMBUS_IO_BASE, device, address);
}
static int smbus_write_byte(unsigned device, unsigned address, unsigned char val)
{
        return do_smbus_write_byte(SMBUS_IO_BASE, device, address, val);
}