diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-12-02 08:56:05 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-12-07 13:00:56 +0100 |
| commit | e25b5ef39fd10e48e87e0c4770a721a786e36a36 (patch) | |
| tree | 113c2b4eba9bf7fddd6badbafc3c0f6ac0cef04f /src/soc/intel/sch/northbridge.c | |
| parent | 3d15e10aef5811e8c7146e5defb0e36b848547ed (diff) | |
MMCONF_SUPPORT: Consolidate resource registration
Change-Id: Id727270bff9e0288747d178c00f3d747fe223b0f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17695
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/sch/northbridge.c')
| -rw-r--r-- | src/soc/intel/sch/northbridge.c | 43 |
1 files changed, 11 insertions, 32 deletions
diff --git a/src/soc/intel/sch/northbridge.c b/src/soc/intel/sch/northbridge.c index 390a0bcb2e..2d3949052c 100644 --- a/src/soc/intel/sch/northbridge.c +++ b/src/soc/intel/sch/northbridge.c @@ -27,7 +27,7 @@ #include <arch/acpi.h> #include "sch.h" -static int get_pcie_bar(u32 *base, u32 *len) +static int get_pcie_bar(u32 *base) { device_t dev; u32 pciexbar_reg; @@ -50,18 +50,15 @@ static int get_pcie_bar(u32 *base, u32 *len) 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; @@ -70,16 +67,6 @@ static int get_pcie_bar(u32 *base, u32 *len) 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; - } printk(BIOS_DEBUG, "Adding CMC shadow area\n"); resource = new_resource(dev, index++); @@ -198,28 +185,20 @@ 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); /* - * So, this is one of the big mysteries in the coreboot resource - * allocator. This resource should make sure that the address space - * of the PCIe memory mapped config space bar. But it does not. - */ - - /* * We use 0xcf as an unused index for our PCIe bar so that we find * it again. */ - resource = new_resource(dev, 0xcf); - resource->flags = IORESOURCE_MEM | IORESOURCE_FIXED | - IORESOURCE_STORED | IORESOURCE_ASSIGNED; - get_pcie_bar((u32 *)&resource->base, (u32 *)&resource->size); - 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) |