| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007-2009 coresystems GmbH |
| * Copyright (C) 2014 Google Inc. |
| * Copyright (C) 2015 Intel Corporation. |
| * |
| * 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 <cbmem.h> |
| #include <console/console.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <soc/iomap.h> |
| #include <soc/ramstage.h> |
| |
| #define RES_IN_KIB(r) ((r) >> 10) |
| |
| static void nc_read_resources(device_t dev) |
| { |
| unsigned long base_k; |
| int index = 0; |
| unsigned long size_k; |
| |
| /* Read standard PCI resources. */ |
| pci_dev_read_resources(dev); |
| |
| /* 0 -> 0xa0000 */ |
| base_k = 0; |
| size_k = 0xa0000 - base_k; |
| ram_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k)); |
| |
| /* |
| * Reserve everything between A segment and 1MB: |
| * |
| * 0xa0000 - 0xbffff: legacy VGA |
| * 0xc0000 - 0xdffff: RAM |
| * 0xe0000 - 0xfffff: ROM shadow |
| */ |
| base_k += size_k; |
| size_k = 0xc0000 - base_k; |
| mmio_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k)); |
| |
| base_k += size_k; |
| size_k = 0x100000 - base_k; |
| reserved_ram_resource(dev, index++, RES_IN_KIB(base_k), |
| RES_IN_KIB(size_k)); |
| |
| /* 0x100000 -> cbmem_top - cacheable and usable */ |
| base_k += size_k; |
| size_k = (unsigned long)cbmem_top() - base_k; |
| ram_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k)); |
| |
| /* cbmem_top -> 0xc0000000 - reserved */ |
| base_k += size_k; |
| size_k = 0xc0000000 - base_k; |
| reserved_ram_resource(dev, index++, RES_IN_KIB(base_k), |
| RES_IN_KIB(size_k)); |
| |
| /* 0xc0000000 -> 4GiB is mmio. */ |
| base_k += size_k; |
| size_k = 0x100000000ull - base_k; |
| mmio_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k)); |
| } |
| |
| static struct device_operations nc_ops = { |
| .read_resources = &nc_read_resources, |
| .set_resources = &pci_dev_set_resources, |
| .enable_resources = &pci_dev_enable_resources, |
| }; |
| |
| static const struct pci_driver systemagent_driver __pci_driver = { |
| .ops = &nc_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = QUARK_MC_DEVICE_ID |
| }; |