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nb/intel/nehalem: Add ACPI path 

Provide a valid ACPI path for coreboot's SSDT generators.

Fixes all ACPI errors found while booting GNU Linux 4.15 on
Lenovo T410.

Change-Id: Idd4986f39f21cb53cb019d0893d40fed94c6505b
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/26287
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Patrick Rudolph 2018-05-15 11:37:26 +02:00 committed by Patrick Rudolph
parent 735b9a0d1c
commit 5c3452b800
1 changed files with 21 additions and 0 deletions
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21
src/northbridge/intel/nehalem/northbridge.c
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@ -92,12 +92,33 @@ static void pci_domain_set_resources(struct device *dev)
assign_resources(dev->link_list); assign_resources(dev->link_list);
} }
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
static const char *northbridge_acpi_name(const struct device *dev)
{
if (dev->path.type == DEVICE_PATH_DOMAIN)
return "PCI0";
if (dev->path.type != DEVICE_PATH_PCI || dev->bus->secondary != 0)
return NULL;
switch (dev->path.pci.devfn) {
case PCI_DEVFN(0, 0):
return "MCHC";
}
return NULL;
}
#endif
static struct device_operations pci_domain_ops = { static struct device_operations pci_domain_ops = {
.read_resources = pci_domain_read_resources, .read_resources = pci_domain_read_resources,
.set_resources = pci_domain_set_resources, .set_resources = pci_domain_set_resources,
.enable_resources = NULL, .enable_resources = NULL,
.init = NULL, .init = NULL,
.scan_bus = pci_domain_scan_bus, .scan_bus = pci_domain_scan_bus,
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
.acpi_name = northbridge_acpi_name,
#endif
}; };
static void mc_read_resources(struct device *dev) static void mc_read_resources(struct device *dev)