| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2004 Tyan Computer |
| * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer. |
| * Copyright (C) 2006,2007 AMD |
| * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #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 <arch/io.h> |
| #include "mcp55.h" |
| #include "smbus.h" |
| |
| static int lsmbus_recv_byte(device_t dev) |
| { |
| unsigned device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4)); |
| |
| return do_smbus_recv_byte(res->base, device); |
| } |
| |
| static int lsmbus_send_byte(device_t dev, u8 val) |
| { |
| unsigned device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4)); |
| |
| return do_smbus_send_byte(res->base, device, val); |
| } |
| |
| static int lsmbus_read_byte(device_t dev, u8 address) |
| { |
| unsigned device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4)); |
| |
| return do_smbus_read_byte(res->base, device, address); |
| } |
| |
| static int lsmbus_write_byte(device_t dev, u8 address, u8 val) |
| { |
| unsigned device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 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, |
| }; |
| |
| #if CONFIG_HAVE_ACPI_TABLES |
| unsigned pm_base; |
| #endif |
| |
| static void mcp55_sm_read_resources(device_t dev) |
| { |
| unsigned long index; |
| |
| /* Get the normal pci resources of this device */ |
| pci_dev_read_resources(dev); |
| |
| for (index = 0x60; index <= 0x68; index+=4) { // We got another 3. |
| pci_get_resource(dev, index); |
| } |
| compact_resources(dev); |
| } |
| |
| static void mcp55_sm_init(device_t dev) |
| { |
| #if CONFIG_HAVE_ACPI_TABLES |
| struct resource *res; |
| |
| res = find_resource(dev, 0x60); |
| |
| if (res) |
| pm_base = res->base; |
| #endif |
| } |
| |
| static struct device_operations smbus_ops = { |
| .read_resources = mcp55_sm_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = mcp55_sm_init, |
| .scan_bus = scan_smbus, |
| // .enable = mcp55_enable, |
| .ops_pci = &mcp55_pci_ops, |
| .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_MCP55_SM2, |
| }; |