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/*
* 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,
};
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