66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2013 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <arch/io.h>
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#include <console/console.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <reg_script.h>
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#include <baytrail/pci_devs.h>
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#include <baytrail/ramstage.h>
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#include "chip.h"
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#define CAP_OVERRIDE_LOW 0xa0
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#define CAP_OVERRIDE_HIGH 0xa4
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# define USE_CAP_OVERRIDES (1 << 31)
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static void sd_init(device_t dev)
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{
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struct soc_intel_baytrail_config *config = dev->chip_info;
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if (config == NULL)
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return;
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if (config->sdcard_cap_low != 0 || config->sdcard_cap_high != 0) {
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printk(BIOS_DEBUG, "Overriding SD Card controller caps.\n");
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pci_write_config32(dev, CAP_OVERRIDE_LOW,
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config->sdcard_cap_low);
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pci_write_config32(dev, CAP_OVERRIDE_HIGH,
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config->sdcard_cap_high | USE_CAP_OVERRIDES);
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}
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}
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static const struct device_operations device_ops = {
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.read_resources = pci_dev_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.init = sd_init,
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.enable = NULL,
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.scan_bus = NULL,
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.ops_pci = &soc_pci_ops,
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};
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static const struct pci_driver southcluster __pci_driver = {
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.ops = &device_ops,
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.vendor = PCI_VENDOR_ID_INTEL,
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.device = SD_DEVID,
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};
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