diff options
author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-06-14 14:49:07 -0500 |
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committer | Patrick Georgi <pgeorgi@google.com> | 2018-09-15 11:35:38 +0000 |
commit | 03eb8a8515b241887b98f80d034e0cdfe13e203b (patch) | |
tree | dd88126890a6251561f5ddd0ff8d4c4a29f6de81 /src/northbridge/amd/pi/00730F01/iommu.c | |
parent | 33fa95cd35da93c3e41ca50fb9bc6bc4c2b2cf12 (diff) |
nb/amd/pi/00730F01: Initialize IOMMU device
Change-Id: I12d3ed35770ee06626f884db23004652084c88c0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15186
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/northbridge/amd/pi/00730F01/iommu.c')
-rw-r--r-- | src/northbridge/amd/pi/00730F01/iommu.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/northbridge/amd/pi/00730F01/iommu.c b/src/northbridge/amd/pi/00730F01/iommu.c new file mode 100644 index 0000000000..1ff4cfbbc9 --- /dev/null +++ b/src/northbridge/amd/pi/00730F01/iommu.c @@ -0,0 +1,60 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 Rudolf Marek <r.marek@assembler.cz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <lib.h> + +static void iommu_read_resources(struct device *dev) +{ + struct resource *res; + + /* Get the normal pci resources of this device */ + pci_dev_read_resources(dev); + + /* Add an extra subtractive resource for both memory and I/O. */ + res = new_resource(dev, 0x44); + res->size = 512 * 1024; + res->align = log2(res->size); + res->gran = log2(res->size); + res->limit = 0xffffffff; /* 4G */ + res->flags = IORESOURCE_MEM; +} + +static void iommu_set_resources(struct device *dev) +{ + pci_dev_set_resources(dev); +} + +static struct pci_operations lops_pci = { + .set_subsystem = pci_dev_set_subsystem, +}; + +static struct device_operations iommu_ops = { + .read_resources = iommu_read_resources, + .set_resources = iommu_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = 0, + .scan_bus = 0, + .ops_pci = &lops_pci, +}; + +static const struct pci_driver iommu_driver __pci_driver = { + .ops = &iommu_ops, + .vendor = PCI_VENDOR_ID_AMD, + .device = PCI_DEVICE_ID_AMD_16H_MODEL_303F_NB_IOMMU, +}; |