e62836b7d6
This patch cleans soc/intel/{apollolake/cannonlake/skylake} by moving
common soc code into common/block/i2c.
BUG=b:78109109
BRANCH=none
TEST=Build and boot KBL/CNL/APL platform.
Change-Id: I88f2f836eee4f80b79486dd8644d1bb3826c5af1
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/26056
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2016 Google Inc.
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* Copyright (C) 2018 Intel Corporation.
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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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#include <device/device.h>
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#include <device/pci_def.h>
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#include <drivers/i2c/designware/dw_i2c.h>
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#include <soc/pci_devs.h>
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/* Convert I2C bus number to PCI device and function */
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int dw_i2c_soc_bus_to_devfn(unsigned int bus)
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{
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if (bus <= 3)
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return PCI_DEVFN(PCH_DEV_SLOT_SIO1, bus);
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else if (bus >= 4 && bus <= 7)
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return PCI_DEVFN(PCH_DEV_SLOT_SIO2, (bus - 4));
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else
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return -1;
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}
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/* Convert PCI device and function to I2C bus number */
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int dw_i2c_soc_devfn_to_bus(unsigned int devfn)
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{
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if (PCI_SLOT(devfn) == PCH_DEV_SLOT_SIO1)
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return PCI_FUNC(devfn);
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else if (PCI_SLOT(devfn) == PCH_DEV_SLOT_SIO2)
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return PCI_FUNC(devfn) + 4;
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else
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return -1;
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}
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