diff options
author | Bruce Griffith <Bruce.Griffith@se-eng.com> | 2014-10-22 03:33:49 -0600 |
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committer | Dave Frodin <dave.frodin@se-eng.com> | 2015-03-10 16:43:23 +0100 |
commit | 006364eeddf763cddc5f63e738dadc52355bbe9a (patch) | |
tree | 0e3f1aee2d498fc78711ecff11a8ff0a666e6d79 /src/northbridge/amd/pi/00630F01/iommu.c | |
parent | 1a7da5c3ee4e2492dd021cefdcc72ab17c85f164 (diff) |
AMD Bald Eagle: Add northbridge files for new AMD processor
Also fix a typo in a config option for SteppeEagle.
Change-Id: Iad51cc917217aa0eac751dc805c304652d20e066
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/7247
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Diffstat (limited to 'src/northbridge/amd/pi/00630F01/iommu.c')
-rw-r--r-- | src/northbridge/amd/pi/00630F01/iommu.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/northbridge/amd/pi/00630F01/iommu.c b/src/northbridge/amd/pi/00630F01/iommu.c new file mode 100644 index 0000000000..08134348ae --- /dev/null +++ b/src/northbridge/amd/pi/00630F01/iommu.c @@ -0,0 +1,73 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#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(device_t 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(device_t dev) +{ + struct resource *res; + + pci_dev_set_resources(dev); + + res = find_resource(dev, 0x44); + /* Remember this resource has been stored */ + res->flags |= IORESOURCE_STORED; + /* For now, do only 32-bit space allocation */ + pci_write_config32(dev, 0x48, 0x0); + pci_write_config32(dev, 0x44, res->base | (1 << 0)); +} + +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_15H_MODEL_303F_NB_IOMMU, +}; |