diff options
Diffstat (limited to 'src/northbridge/intel/i945')
-rw-r--r-- | src/northbridge/intel/i945/northbridge.c | 45 |
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) |