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nb/amd/pi/00730F01: assign IOMMU ops in chipset devicetree 

Since the IOMMU is always function 2 of device 0 on bus 0, the device
operations can be statically assigned in the devicetree and there's no
need to bind the IOMMU device operations to the PCI device during
runtime via a list of PCI IDs.

TEST=PC Engines APU2 still boots and doesn't show any new problems

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I84e949500ee86e0fcb2d15791502f5e3e7127703
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79105
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Felix Held 2023-11-16 16:17:21 +01:00
parent 7b9c647217
commit dda7793e53
2 changed files with 4 additions and 8 deletions
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4
src/northbridge/amd/pi/00730F01/chipset.cb
View File

@ -10,7 +10,9 @@ chip northbridge/amd/pi/00730F01
device pci 0.0 alias gnb on
ops amd_pi_northbridge_ops
end
device pci 0.2 alias iommu off end
device pci 0.2 alias iommu off
ops amd_pi_iommu_ops
end
device pci 1.0 alias gfx off end
device pci 1.1 alias gfx_hda off end
device pci 2.0 on end # Dummy device function, do not disable

8
src/northbridge/amd/pi/00730F01/iommu.c
View File

@ -21,15 +21,9 @@ static void iommu_read_resources(struct device *dev)
res->flags = IORESOURCE_MEM;
}
static struct device_operations iommu_ops = {
struct device_operations amd_pi_iommu_ops = {
.read_resources = iommu_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.ops_pci = &pci_dev_ops_pci,
};
static const struct pci_driver iommu_driver __pci_driver = {
.ops = &iommu_ops,
.vendor = PCI_VID_AMD,
.device = PCI_DID_AMD_16H_MODEL_303F_NB_IOMMU,
};