/* * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #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_GENERATE_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_GENERATE_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_static_bus, // .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, };