diff options
Diffstat (limited to 'src/soc/amd/stoneyridge')
| -rw-r--r-- | src/soc/amd/stoneyridge/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/amd/stoneyridge/iommu.c | 55 | ||||
| -rw-r--r-- | src/soc/amd/stoneyridge/northbridge.c | 2 |
3 files changed, 57 insertions, 1 deletions
diff --git a/src/soc/amd/stoneyridge/Makefile.inc b/src/soc/amd/stoneyridge/Makefile.inc index a8db2c25a1..c54b65251c 100644 --- a/src/soc/amd/stoneyridge/Makefile.inc +++ b/src/soc/amd/stoneyridge/Makefile.inc @@ -97,6 +97,7 @@ ramstage-$(CONFIG_USBDEBUG) += enable_usbdebug.c ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi.c ramstage-y += gpio.c ramstage-y += hda.c +ramstage-y += iommu.c ramstage-y += monotonic_timer.c ramstage-y += southbridge.c ramstage-y += sb_util.c diff --git a/src/soc/amd/stoneyridge/iommu.c b/src/soc/amd/stoneyridge/iommu.c new file mode 100644 index 0000000000..e33402ac43 --- /dev/null +++ b/src/soc/amd/stoneyridge/iommu.c @@ -0,0 +1,55 @@ +/* + * 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 struct pci_operations lops_pci = { + .set_subsystem = pci_dev_set_subsystem, +}; + +static struct device_operations iommu_ops = { + .read_resources = iommu_read_resources, + .set_resources = pci_dev_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_707F_NB_IOMMU, +}; diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c index 912daa05e2..95c2a073cb 100644 --- a/src/soc/amd/stoneyridge/northbridge.c +++ b/src/soc/amd/stoneyridge/northbridge.c @@ -508,7 +508,7 @@ __weak void set_board_env_params(GNB_ENV_CONFIGURATION *params) { } void SetNbEnvParams(GNB_ENV_CONFIGURATION *params) { - params->IommuSupport = FALSE; + params->IommuSupport = TRUE; set_board_env_params(params); } |