31 lines
585 B
C
31 lines
585 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2013 Google, Inc
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*/
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#include <vsprintf.h>
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#include <dm/device.h>
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#include <dm/ofnode.h>
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#include <dm/read.h>
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#include <dm/util.h>
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#include <linux/libfdt.h>
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#include <linux/list.h>
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#if CONFIG_IS_ENABLED(OF_REAL)
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int pci_get_devfn(struct udevice *dev)
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{
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struct fdt_pci_addr addr;
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int ret;
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/* Extract the devfn from fdt_pci_addr */
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ret = ofnode_read_pci_addr(dev_ofnode(dev), FDT_PCI_SPACE_CONFIG,
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"reg", &addr, NULL);
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if (ret) {
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if (ret != -ENOENT)
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return -EINVAL;
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}
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return addr.phys_hi & 0xff00;
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}
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#endif
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