| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2005 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; version 2 of the License. |
| * |
| * 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/pnp.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <pc80/mc146818rtc.h> |
| #include <pc80/isa-dma.h> |
| #include <arch/io.h> |
| #include <device/smbus.h> |
| #include "bcm5785.h" |
| #include "smbus.h" |
| |
| #define NMI_OFF 0 |
| |
| static void sb_init(device_t dev) |
| { |
| uint8_t byte; |
| uint8_t byte_old; |
| int nmi_option; |
| |
| /* Set up NMI on errors */ |
| byte = inb(0x70); // RTC70 |
| byte_old = byte; |
| nmi_option = NMI_OFF; |
| get_option(&nmi_option, "nmi"); |
| if (nmi_option) { |
| byte &= ~(1 << 7); /* set NMI */ |
| } else { |
| byte |= ( 1 << 7); // Can not mask NMI from PCI-E and NMI_NOW |
| } |
| if( byte != byte_old) { |
| outb(byte, 0x70); |
| } |
| |
| |
| } |
| |
| static void bcm5785_sb_read_resources(device_t dev) |
| { |
| struct resource *res; |
| |
| /* Get the normal pci resources of this device */ |
| pci_dev_read_resources(dev); |
| /* Get Resource for SMBUS */ |
| pci_get_resource(dev, 0x90); |
| |
| compact_resources(dev); |
| |
| /* Add an extra subtractive resource for both memory and I/O */ |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); |
| res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; |
| |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0)); |
| res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; |
| |
| } |
| |
| 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, 0x90); |
| |
| return do_smbus_recv_byte(res->base, device); |
| } |
| |
| static int lsmbus_send_byte(device_t dev, uint8_t val) |
| { |
| unsigned device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x90); |
| |
| return do_smbus_send_byte(res->base, device, val); |
| } |
| |
| static int lsmbus_read_byte(device_t dev, uint8_t address) |
| { |
| unsigned device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x90); |
| |
| return do_smbus_read_byte(res->base, device, address); |
| } |
| |
| static int lsmbus_write_byte(device_t dev, uint8_t address, uint8_t val) |
| { |
| unsigned device; |
| struct resource *res; |
| struct bus *pbus; |
| |
| device = dev->path.i2c.device; |
| pbus = get_pbus_smbus(dev); |
| |
| res = find_resource(pbus->dev, 0x90); |
| |
| 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, |
| }; |
| |
| static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device) |
| { |
| pci_write_config32(dev, 0x2c, |
| ((device & 0xffff) << 16) | (vendor & 0xffff)); |
| } |
| |
| static struct pci_operations lops_pci = { |
| .set_subsystem = lpci_set_subsystem, |
| }; |
| |
| static struct device_operations sb_ops = { |
| .read_resources = bcm5785_sb_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sb_init, |
| .scan_bus = scan_smbus, |
| // .enable = bcm5785_enable, |
| .ops_pci = &lops_pci, |
| .ops_smbus_bus = &lops_smbus_bus, |
| }; |
| |
| static const struct pci_driver sb_driver __pci_driver = { |
| .ops = &sb_ops, |
| .vendor = PCI_VENDOR_ID_SERVERWORKS, |
| .device = PCI_DEVICE_ID_SERVERWORKS_BCM5785_SB_PCI_MAIN, |
| }; |