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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Sven Schnelle <svens@stackframe.org>
*
* 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 <arch/io.h>
#include <stdint.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <stdlib.h>
#include <string.h>
#include <cpu/cpu.h>
#include <arch/acpi.h>
#include <cbmem.h>
static void intel_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
if (!vendor || !device) {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
pci_read_config32(dev, PCI_VENDOR_ID));
} else {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
}
static void mc_read_resources(device_t dev)
{
struct resource *resource;
uint32_t hecbase, amsize, tolm;
uint64_t ambase, memsize;
int idx = 0;
device_t dev16_0 = dev_find_slot(0, PCI_DEVFN(16, 0));
device_t dev16_1 = dev_find_slot(0, PCI_DEVFN(16, 1));
pci_dev_read_resources(dev);
tolm = pci_read_config16(dev_find_slot(0, PCI_DEVFN(16, 1)), 0x6c) << 16;
hecbase = pci_read_config16(dev16_0, 0x64) >> 12;
hecbase &= 0xffff;
ambase = ((u64)pci_read_config32(dev16_0, 0x48) |
(u64)pci_read_config32(dev16_0, 0x4c) << 32);
amsize = pci_read_config32(dev16_0, 0x50);
ambase &= 0x000000ffffff0000;
printk(BIOS_DEBUG, "TOLM: 0x%08x AMBASE: 0x%016llx\n", tolm, ambase);
/* Report the memory regions */
ram_resource(dev, idx++, 0, 640);
ram_resource(dev, idx++, 768, ((tolm >> 10) - 768));
memsize = MAX(pci_read_config16(dev16_1, 0x80) & ~3,
pci_read_config16(dev16_1, 0x84) & ~3);
memsize = MAX(memsize, pci_read_config16(dev16_1, 0x88) & ~3);
memsize <<= 24;
printk(BIOS_INFO, "MEMSIZE: %08llx\n", memsize);
if (memsize > 0xd0000000) {
memsize -= 0xd0000000;
printk(BIOS_INFO, "high memory: %lldMB\n", memsize / 1048576);
ram_resource(dev, idx++, 4096 * 1024, memsize / 1024);
}
if (hecbase) {
printk(BIOS_DEBUG, "Adding PCIe config bar at 0x%016llx\n", (u64)hecbase << 28);
resource = new_resource(dev, idx++);
resource->base = (resource_t)(uint64_t)hecbase << 28;
resource->size = (resource_t)256 * 1024 * 1024;
resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
}
resource = new_resource(dev, idx++);
resource->base = (resource_t)(uint64_t)0xffe00000;
resource->size = (resource_t)0x200000;
resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
if (ambase && amsize) {
resource = new_resource(dev, idx++);
resource->base = (resource_t)ambase;
resource->size = (resource_t)amsize;
resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
}
/* add resource for 0xfe6xxxxx range. This range is used by i5000 for
various fixed address registers (BOFL, SPAD, SPADS */
resource = new_resource(dev, idx++);
resource->base = (resource_t)0xfe600000;
resource->size = (resource_t)0x00100000;
resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
set_top_of_ram(tolm);
}
static struct pci_operations intel_pci_ops = {
.set_subsystem = intel_set_subsystem,
};
static struct device_operations mc_ops = {
.read_resources = mc_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.scan_bus = 0,
.ops_pci = &intel_pci_ops,
};
static const unsigned short nb_ids[] = {
0x25c0, /* 5000X */
0x25d0, /* 5000Z */
0x25d4, /* 5000V */
0x25d8, /* 5000P */
0};
static const struct pci_driver mc_driver __pci_driver = {
.ops = &mc_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = nb_ids,
};
static void cpu_bus_init(device_t dev)
{
initialize_cpus(dev->link_list);
}
static struct device_operations cpu_bus_ops = {
.read_resources = DEVICE_NOOP,
.set_resources = DEVICE_NOOP,
.enable_resources = DEVICE_NOOP,
.init = cpu_bus_init,
.scan_bus = 0,
};
static void pci_domain_set_resources(device_t dev)
{
assign_resources(dev->link_list);
}
static struct device_operations pci_domain_ops = {
.read_resources = pci_domain_read_resources,
.set_resources = pci_domain_set_resources,
.enable_resources = NULL,
.init = NULL,
.scan_bus = pci_domain_scan_bus,
.ops_pci_bus = pci_bus_default_ops,
};
static void enable_dev(device_t dev)
{
/* Set the operations if it is a special bus type */
if (dev->path.type == DEVICE_PATH_DOMAIN) {
dev->ops = &pci_domain_ops;
} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
dev->ops = &cpu_bus_ops;
}
}
struct chip_operations northbridge_intel_i5000_ops = {
CHIP_NAME("Intel i5000 Northbridge")
.enable_dev = enable_dev,
};
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