| /* |
| * 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 <arch/ioapic.h> |
| #include "bcm5785.h" |
| |
| static void lpc_init(struct device *dev) |
| { |
| /* Initialize the real time clock */ |
| cmos_init(0); |
| |
| /* Initialize isa dma */ |
| isa_dma_init(); |
| } |
| |
| static void bcm5785_lpc_read_resources(struct device *dev) |
| { |
| struct resource *res; |
| |
| /* Get the normal pci resources of this device */ |
| pci_dev_read_resources(dev); |
| |
| /* Add an extra subtractive resource for both memory and I/O. */ |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); |
| res->base = 0; |
| res->size = 0x1000; |
| res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0)); |
| res->base = 0xff800000; |
| res->size = 0x00800000; /* 8 MB for flash */ |
| res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| |
| res = new_resource(dev, 3); /* IOAPIC */ |
| res->base = IO_APIC_ADDR; |
| res->size = 0x00001000; |
| res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| |
| /** |
| * Enable resources for children devices. |
| * |
| * @param dev The device whos children's resources are to be enabled. |
| */ |
| static void bcm5785_lpc_enable_childrens_resources(struct device *dev) |
| { |
| struct bus *link; |
| uint32_t reg; |
| |
| reg = pci_read_config8(dev, 0x44); |
| |
| for (link = dev->link_list; link; link = link->next) { |
| struct device *child; |
| for (child = link->children; child; child = child->sibling) { |
| if (child->enabled && (child->path.type == DEVICE_PATH_PNP)) { |
| struct resource *res; |
| for (res = child->resource_list; res; res = res->next) { |
| unsigned long base, end; // don't need long long |
| if (!(res->flags & IORESOURCE_IO)) continue; |
| base = res->base; |
| end = resource_end(res); |
| printk(BIOS_DEBUG, "bcm5785lpc decode:%s, base=0x%08lx, end=0x%08lx\n",dev_path(child),base, end); |
| switch (base) { |
| case 0x60: //KBC |
| case 0x64: |
| reg |= (1<<29); break; |
| case 0x3f8: // COM1 |
| reg |= (1<<6); break; |
| case 0x2f8: // COM2 |
| reg |= (1<<7); break; |
| case 0x378: // Parallel 1 |
| reg |= (1<<0); break; |
| case 0x3f0: // FD0 |
| reg |= (1<<26); break; |
| case 0x220: // Audio 0 |
| reg |= (1<<14); break; |
| case 0x300: // MIDI 0 |
| reg |= (1<<18); break; |
| } |
| } |
| } |
| } |
| } |
| pci_write_config32(dev, 0x44, reg); |
| |
| |
| } |
| |
| static void bcm5785_lpc_enable_resources(struct device *dev) |
| { |
| pci_dev_enable_resources(dev); |
| bcm5785_lpc_enable_childrens_resources(dev); |
| } |
| |
| static void lpci_set_subsystem(struct device *dev, unsigned vendor, |
| unsigned device) |
| { |
| pci_write_config32(dev, 0x40, |
| ((device & 0xffff) << 16) | (vendor & 0xffff)); |
| } |
| |
| static struct pci_operations lops_pci = { |
| .set_subsystem = lpci_set_subsystem, |
| }; |
| |
| static struct device_operations lpc_ops = { |
| .read_resources = bcm5785_lpc_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = bcm5785_lpc_enable_resources, |
| .init = lpc_init, |
| .scan_bus = scan_lpc_bus, |
| // .enable = bcm5785_enable, |
| .ops_pci = &lops_pci, |
| }; |
| |
| static const struct pci_driver lpc_driver __pci_driver = { |
| .ops = &lpc_ops, |
| .vendor = PCI_VENDOR_ID_SERVERWORKS, |
| .device = PCI_DEVICE_ID_SERVERWORKS_BCM5785_LPC, |
| }; |