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185f812c41
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find . -name '*.c' -exec \
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Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2019 Google, Inc
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*/
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#ifndef __DM_PCI_H
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#define __DM_PCI_H
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struct udevice;
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/**
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* pci_get_devfn() - Extract the devfn from fdt_pci_addr of the device
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*
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* Get devfn from fdt_pci_addr of the specified device
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*
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* This returns an int to avoid a dependency on pci.h
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*
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* @dev: PCI device
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* Return: devfn in bits 15...8 if found (pci_dev_t format), or -ENODEV if not
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* found
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*/
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int pci_get_devfn(struct udevice *dev);
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/**
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* pci_ofplat_get_devfn() - Get the PCI dev/fn from of-platdata
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*
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* This function is used to obtain a PCI device/function from of-platdata
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* register data. In this case the first cell of the 'reg' property contains
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* the required information.
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*
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* This returns an int to avoid a dependency on pci.h
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*
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* @reg: reg value from dt-plat.c array (first member). This is not a
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* pointer type, since the caller may use fdt32_t or fdt64_t depending on
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* the address sizes.
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* Return: device/function for that device (pci_dev_t format)
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*/
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static inline int pci_ofplat_get_devfn(u32 reg)
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{
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return reg & 0xff00;
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}
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#endif
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