diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge/iommu.c')
| -rw-r--r-- | src/northbridge/intel/sandybridge/iommu.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/src/northbridge/intel/sandybridge/iommu.c b/src/northbridge/intel/sandybridge/iommu.c deleted file mode 100644 index 339397d068..0000000000 --- a/src/northbridge/intel/sandybridge/iommu.c +++ /dev/null @@ -1,48 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2015 secunet Security Networks AG - * - * 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 <stdint.h> - -#include <device/mmio.h> -#include <device/pci_ops.h> -#include <device/device.h> -#include <device/pci_def.h> - -#include "sandybridge.h" - -void sandybridge_init_iommu(void) -{ - const u32 capid0_a = pci_read_config32(PCI_DEV(0, 0, 0), 0xe4); - if (capid0_a & (1 << 23)) - return; - - /* setup BARs */ - MCHBAR32(0x5404) = IOMMU_BASE1 >> 32; - MCHBAR32(0x5400) = IOMMU_BASE1 | 1; - MCHBAR32(0x5414) = IOMMU_BASE2 >> 32; - MCHBAR32(0x5410) = IOMMU_BASE2 | 1; - - /* lock policies */ - write32((void *)(IOMMU_BASE1 + 0xff0), 0x80000000); - - const struct device *const azalia = pcidev_on_root(0x1b, 0); - if (azalia && azalia->enabled) { - write32((void *)(IOMMU_BASE2 + 0xff0), 0x20000000); - write32((void *)(IOMMU_BASE2 + 0xff0), 0xa0000000); - } else { - write32((void *)(IOMMU_BASE2 + 0xff0), 0x80000000); - } -} |