diff options
Diffstat (limited to 'src/soc/intel/fsp_broadwell_de/iou_complto.c')
-rw-r--r-- | src/soc/intel/fsp_broadwell_de/iou_complto.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/soc/intel/fsp_broadwell_de/iou_complto.c b/src/soc/intel/fsp_broadwell_de/iou_complto.c new file mode 100644 index 0000000000..dcc307174f --- /dev/null +++ b/src/soc/intel/fsp_broadwell_de/iou_complto.c @@ -0,0 +1,51 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Arista Networks, Inc. + * + * 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/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <soc/intel/fsp_broadwell_de/chip.h> + +#define DEVCTL2 0xb8 + +static void iou_init(struct device *dev) +{ + const config_t *config = dev->chip_info; + u16 devctl2; + + /* pcie completion timeout + EDS Vol 2, Section 7.2.54 */ + devctl2 = pci_read_config16(dev, DEVCTL2); + devctl2 = (devctl2 & ~0xf) | (config->pcie_compltoval & 0xf); + pci_write_config16(dev, DEVCTL2, devctl2); +} + +static struct device_operations iou_ops = { + .read_resources = pci_bus_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_bus_enable_resources, + .scan_bus = pci_scan_bridge, + .reset_bus = pci_bus_reset, + .init = iou_init, +}; + +static const unsigned short iou_device_ids[] = { + 0x6f02, 0x6f08, 0 }; + +static const struct pci_driver iou_driver __pci_driver = { + .ops = &iou_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = iou_device_ids, +}; |