summaryrefslogtreecommitdiff
path: root/src/northbridge/intel/i945
diff options
context:
space:
mode:
Diffstat (limited to 'src/northbridge/intel/i945')
-rw-r--r--src/northbridge/intel/i945/northbridge.c45
1 files changed, 11 insertions, 34 deletions
diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c
index 5d1859133c..c027bece88 100644
--- a/src/northbridge/intel/i945/northbridge.c
+++ b/src/northbridge/intel/i945/northbridge.c
@@ -27,13 +27,12 @@
#include <arch/acpi.h>
#include "i945.h"
-static int get_pcie_bar(u32 *base, u32 *len)
+static int get_pcie_bar(u32 *base)
{
device_t dev;
u32 pciexbar_reg;
*base = 0;
- *len = 0;
dev = dev_find_slot(0, PCI_DEVFN(0, 0));
if (!dev)
@@ -47,36 +46,18 @@ static int get_pcie_bar(u32 *base, u32 *len)
switch ((pciexbar_reg >> 1) & 3) {
case 0: // 256MB
*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28));
- *len = 256 * 1024 * 1024;
- return 1;
+ return 256;
case 1: // 128M
*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
- *len = 128 * 1024 * 1024;
- return 1;
+ return 128;
case 2: // 64M
*base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26));
- *len = 64 * 1024 * 1024;
- return 1;
+ return 64;
}
return 0;
}
-static void add_fixed_resources(struct device *dev, int index)
-{
- struct resource *resource;
- u32 pcie_config_base, pcie_config_size;
-
- if (get_pcie_bar(&pcie_config_base, &pcie_config_size)) {
- printk(BIOS_DEBUG, "Adding PCIe config bar\n");
- resource = new_resource(dev, index++);
- resource->base = (resource_t) pcie_config_base;
- resource->size = (resource_t) pcie_config_size;
- resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
- IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
- }
-}
-
static void pci_domain_set_resources(device_t dev)
{
uint32_t pci_tolm;
@@ -153,8 +134,6 @@ static void pci_domain_set_resources(device_t dev)
uma_resource(dev, 5, uma_memory_base >> 10, uma_memory_size >> 10);
mmio_resource(dev, 6, tseg_memory_base >> 10, tseg_memory_size >> 10);
- add_fixed_resources(dev, 7);
-
assign_resources(dev->link_list);
}
@@ -173,19 +152,17 @@ static struct device_operations pci_domain_ops = {
static void mc_read_resources(device_t dev)
{
- struct resource *resource;
+ u32 pcie_config_base;
+ int buses;
pci_dev_read_resources(dev);
/* We use 0xcf as an unused index for our PCIe bar so that we find it again */
- resource = new_resource(dev, 0xcf);
- resource->base = DEFAULT_PCIEXBAR;
- resource->size = 64 * 1024 * 1024; /* 64MB hard coded PCIe config space */
- resource->flags =
- IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED |
- IORESOURCE_ASSIGNED;
- printk(BIOS_DEBUG, "Adding PCIe enhanced config space BAR 0x%08lx-0x%08lx.\n",
- (unsigned long)(resource->base), (unsigned long)(resource->base + resource->size));
+ buses = get_pcie_bar(&pcie_config_base);
+ if (buses) {
+ struct resource *resource = new_resource(dev, 0xcf);
+ mmconf_resource_init(resource, pcie_config_base, buses);
+ }
}
static void mc_set_resources(device_t dev)