10505470bc
Replace the use of the old device_t definition inside southbridge/nvidia/ck801. Change-Id: I43d4d2175f0b6b9e7e2e6fe665ba3d99d792427c Signed-off-by: Antonello Dettori <dev@dettori.io> Reviewed-on: https://review.coreboot.org/16486 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2004 Tyan Computer
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* Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdint.h>
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#include <arch/io.h>
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#include <console/console.h>
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#include <device/pci_def.h>
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#include <device/pci_ids.h>
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#include "smbus.h"
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#include "early_smbus.h"
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#define SMBUS_BAR_BASE 0x20
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#define SMBUS_IO_BASE 0x1000
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#define SMBUS_IO_SIZE 0x0040
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#define SMBUS_BAR(x) (SMBUS_BAR_BASE + 4 * (x))
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#define SMBUS_BASE(x) (SMBUS_IO_BASE + SMBUS_IO_SIZE * (x))
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void enable_smbus(void)
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{
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pci_devfn_t dev;
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dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_NVIDIA,
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PCI_DEVICE_ID_NVIDIA_CK804_SMB), 0);
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if (dev == PCI_DEV_INVALID)
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die("SMBus controller not found\n");
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/* Set SMBus I/O base. */
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pci_write_config32(dev, SMBUS_BAR(0), SMBUS_BASE(0) | 1);
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pci_write_config32(dev, SMBUS_BAR(1), SMBUS_BASE(1) | 1);
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/* Set SMBus I/O space enable. */
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pci_write_config16(dev, 0x4, 0x01);
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/* Clear any lingering errors, so the transaction will run. */
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outb(inb(SMBUS_BASE(0) + SMBHSTSTAT), SMBUS_BASE(0) + SMBHSTSTAT);
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outb(inb(SMBUS_BASE(1) + SMBHSTSTAT), SMBUS_BASE(1) + SMBHSTSTAT);
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printk(BIOS_DEBUG, "SMBus controller enabled\n");
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}
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int ck804_smbus_read_byte(unsigned bus, unsigned device, unsigned address)
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{
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return do_smbus_read_byte(SMBUS_BASE(bus), device, address);
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}
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int ck804_smbus_write_byte(unsigned bus, unsigned device, unsigned address,
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unsigned char val)
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{
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return do_smbus_write_byte(SMBUS_BASE(bus), device, address, val);
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}
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int smbus_read_byte(unsigned device, unsigned address)
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{
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return ck804_smbus_read_byte(0, device, address);
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}
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int smbus_write_byte(unsigned device, unsigned address, unsigned char val)
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{
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return ck804_smbus_write_byte(0, device, address, val);
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}
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