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/*
* This file is part of the coreboot project.
*
* Copyright 2017 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 <device/pci.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include <drivers/i2c/designware/dw_i2c.h>
uintptr_t dw_i2c_base_address(unsigned int bus)
{
int devfn;
struct device *dev;
struct resource *res;
/* bus -> devfn */
devfn = dw_i2c_soc_bus_to_devfn(bus);
if (devfn < 0)
return (uintptr_t)NULL;
/* devfn -> dev */
dev = dev_find_slot(0, devfn);
if (!dev || !dev->enabled)
return (uintptr_t)NULL;
/* dev -> bar0 */
res = find_resource(dev, PCI_BASE_ADDRESS_0);
if (res)
return res->base;
return (uintptr_t)NULL;
}
int dw_i2c_soc_dev_to_bus(struct device *dev)
{
pci_devfn_t devfn = dev->path.pci.devfn;
return dw_i2c_soc_devfn_to_bus(devfn);
}
static struct device_operations i2c_dev_ops = {
.read_resources = &pci_dev_read_resources,
.set_resources = &pci_dev_set_resources,
.enable_resources = &pci_dev_enable_resources,
.scan_bus = &scan_smbus,
.ops_i2c_bus = &dw_i2c_bus_ops,
.ops_pci = &pci_dev_ops_pci,
.init = &dw_i2c_dev_init,
.acpi_fill_ssdt_generator = &dw_i2c_acpi_fill_ssdt,
};
static const unsigned short pci_device_ids[] = {
PCI_DEVICE_ID_INTEL_SPT_I2C0,
PCI_DEVICE_ID_INTEL_SPT_I2C1,
PCI_DEVICE_ID_INTEL_SPT_I2C2,
PCI_DEVICE_ID_INTEL_SPT_I2C3,
PCI_DEVICE_ID_INTEL_SPT_I2C4,
PCI_DEVICE_ID_INTEL_SPT_I2C5,
PCI_DEVICE_ID_INTEL_APL_I2C0,
PCI_DEVICE_ID_INTEL_APL_I2C1,
PCI_DEVICE_ID_INTEL_APL_I2C2,
PCI_DEVICE_ID_INTEL_APL_I2C3,
PCI_DEVICE_ID_INTEL_APL_I2C4,
PCI_DEVICE_ID_INTEL_APL_I2C5,
PCI_DEVICE_ID_INTEL_APL_I2C6,
PCI_DEVICE_ID_INTEL_APL_I2C7,
PCI_DEVICE_ID_INTEL_CNL_I2C0,
PCI_DEVICE_ID_INTEL_CNL_I2C1,
PCI_DEVICE_ID_INTEL_CNL_I2C2,
PCI_DEVICE_ID_INTEL_CNL_I2C3,
PCI_DEVICE_ID_INTEL_CNL_I2C4,
PCI_DEVICE_ID_INTEL_CNL_I2C5,
PCI_DEVICE_ID_INTEL_GLK_I2C0,
PCI_DEVICE_ID_INTEL_GLK_I2C1,
PCI_DEVICE_ID_INTEL_GLK_I2C2,
PCI_DEVICE_ID_INTEL_GLK_I2C3,
PCI_DEVICE_ID_INTEL_GLK_I2C4,
PCI_DEVICE_ID_INTEL_GLK_I2C5,
PCI_DEVICE_ID_INTEL_GLK_I2C6,
PCI_DEVICE_ID_INTEL_GLK_I2C7,
0,
};
static const struct pci_driver pch_i2c __pci_driver = {
.ops = &i2c_dev_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
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