065857ee7f
Change-Id: I91158452680586ac676ea11c8589062880a31f91 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31692 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
102 lines
2.6 KiB
C
102 lines
2.6 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 <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <device/pci_ops.h>
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#include <device/smbus.h>
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#include "chip.h"
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#include "smbus.h"
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static int lsmbus_recv_byte(struct device *dev)
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{
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unsigned device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
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return do_smbus_recv_byte(res->base, device);
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}
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static int lsmbus_send_byte(struct device *dev, u8 val)
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{
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unsigned device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
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return do_smbus_send_byte(res->base, device, val);
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}
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static int lsmbus_read_byte(struct device *dev, u8 address)
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{
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unsigned device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
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return do_smbus_read_byte(res->base, device, address);
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}
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static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
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{
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unsigned device;
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struct resource *res;
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struct bus *pbus;
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device = dev->path.i2c.device;
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pbus = get_pbus_smbus(dev);
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res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
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return do_smbus_write_byte(res->base, device, address, val);
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}
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static struct smbus_bus_operations lops_smbus_bus = {
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.recv_byte = lsmbus_recv_byte,
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.send_byte = lsmbus_send_byte,
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.read_byte = lsmbus_read_byte,
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.write_byte = lsmbus_write_byte,
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};
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static struct device_operations smbus_ops = {
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.read_resources = pci_dev_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.init = 0,
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.scan_bus = scan_smbus,
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.ops_pci = &ck804_pci_ops,
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.ops_smbus_bus = &lops_smbus_bus,
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};
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static const struct pci_driver smbus_driver __pci_driver = {
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.ops = &smbus_ops,
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.vendor = PCI_VENDOR_ID_NVIDIA,
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.device = PCI_DEVICE_ID_NVIDIA_CK804_SM,
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};
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