| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2013 Google 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. |
| * |
| * 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 <arch/io.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <reg_script.h> |
| |
| #include <baytrail/pci_devs.h> |
| #include <baytrail/ramstage.h> |
| #include "chip.h" |
| |
| #define CAP_OVERRIDE_LOW 0xa0 |
| #define CAP_OVERRIDE_HIGH 0xa4 |
| # define USE_CAP_OVERRIDES (1 << 31) |
| |
| static void sd_init(device_t dev) |
| { |
| struct soc_intel_baytrail_config *config = dev->chip_info; |
| |
| if (config == NULL) |
| return; |
| |
| if (config->sdcard_cap_low != 0 || config->sdcard_cap_high != 0) { |
| printk(BIOS_DEBUG, "Overriding SD Card controller caps.\n"); |
| pci_write_config32(dev, CAP_OVERRIDE_LOW, |
| config->sdcard_cap_low); |
| pci_write_config32(dev, CAP_OVERRIDE_HIGH, |
| config->sdcard_cap_high | USE_CAP_OVERRIDES); |
| } |
| } |
| |
| static const struct device_operations device_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sd_init, |
| .enable = NULL, |
| .scan_bus = NULL, |
| .ops_pci = &soc_pci_ops, |
| }; |
| |
| static const struct pci_driver southcluster __pci_driver = { |
| .ops = &device_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = SD_DEVID, |
| }; |