blob: 3816fc46e2876474ba7b2eb7d0fda65b96314875 [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
* Copyright (C) 2015 Intel Corp.
*
* 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_ops.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <reg_script.h>
#include <soc/iosf.h>
#include <soc/nvs.h>
#include <soc/pci_devs.h>
#include <soc/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(struct device *dev)
{
struct soc_intel_braswell_config *config = config_of(dev);
printk(BIOS_SPEW, "%s/%s (%s)\n",
__FILE__, __func__, dev_name(dev));
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);
}
if (config->sd_acpi_mode)
scc_enable_acpi_mode(dev, SCC_SD_CTL, SCC_NVS_SD);
}
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,
.ops_pci = &soc_pci_ops,
};
static const struct pci_driver southcluster __pci_driver = {
.ops = &device_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = SD_DEVID,
};