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nb/intel/sandybridge: assign host bridge ops in chipset devicetree 

Since the host bridge is always function 0 of device 0 on bus 0, the
device operations can be statically assigned in the devicetree and
there's no need to bind the host bridge device operations to the PCI
device during runtime via a list of PCI IDs.

TEST=Lenovo X220 still boots to Linux

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Change-Id: Icf3d9f8cd2be2f8ef71fd9fdb5f005f3b683332e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79113
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
This commit is contained in:
Felix Held 2023-11-16 14:03:09 +01:00
parent c8dc4a3bd1
commit 4c4d1948ef
2 changed files with 2 additions and 14 deletions
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2
src/northbridge/intel/sandybridge/chipset.cb
View File

@ -10,7 +10,7 @@ chip northbridge/intel/sandybridge
end end
device domain 0 on device domain 0 on
ops sandybridge_pci_domain_ops ops sandybridge_pci_domain_ops
device pci 00.0 alias host_bridge on end # host bridge device pci 00.0 alias host_bridge on ops sandybridge_host_bridge_ops end
device pci 01.0 alias peg10 off end # PEG10 device pci 01.0 alias peg10 off end # PEG10
device pci 01.1 alias peg11 off end # PEG11 device pci 01.1 alias peg11 off end # PEG11
device pci 01.2 alias peg12 off end # PEG12 device pci 01.2 alias peg12 off end # PEG12

14
src/northbridge/intel/sandybridge/northbridge.c
View File

@ -390,7 +390,7 @@ static void mc_gen_ssdt(const struct device *dev)
set_above_4g_pci(dev); set_above_4g_pci(dev);
} }
static struct device_operations mc_ops = { struct device_operations sandybridge_host_bridge_ops = {
.read_resources = mc_read_resources, .read_resources = mc_read_resources,
.set_resources = pci_dev_set_resources, .set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources, .enable_resources = pci_dev_enable_resources,
@ -399,18 +399,6 @@ static struct device_operations mc_ops = {
.acpi_fill_ssdt = mc_gen_ssdt, .acpi_fill_ssdt = mc_gen_ssdt,
}; };
static const unsigned short pci_device_ids[] = {
0x0100, 0x0104, 0x0108, /* Sandy Bridge */
0x0150, 0x0154, 0x0158, /* Ivy Bridge */
0
};
static const struct pci_driver mc_driver __pci_driver = {
.ops = &mc_ops,
.vendor = PCI_VID_INTEL,
.devices = pci_device_ids,
};
struct device_operations sandybridge_cpu_bus_ops = { struct device_operations sandybridge_cpu_bus_ops = {
.read_resources = noop_read_resources, .read_resources = noop_read_resources,
.set_resources = noop_set_resources, .set_resources = noop_set_resources,