97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/*
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* Copyright (C) 2014-2015 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of 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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#ifndef _PCIE_IPROC_H
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#define _PCIE_IPROC_H
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/**
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* iProc PCIe interface type
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*
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* PAXB is the wrapper used in root complex that can be connected to an
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* external endpoint device.
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*
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* PAXC is the wrapper used in root complex dedicated for internal emulated
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* endpoint devices.
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*/
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enum iproc_pcie_type {
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IPROC_PCIE_PAXB = 0,
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IPROC_PCIE_PAXC,
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};
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/**
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* iProc PCIe outbound mapping
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* @set_oarr_size: indicates the OARR size bit needs to be set
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* @axi_offset: offset from the AXI address to the internal address used by
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* the iProc PCIe core
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* @window_size: outbound window size
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*/
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struct iproc_pcie_ob {
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bool set_oarr_size;
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resource_size_t axi_offset;
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resource_size_t window_size;
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};
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struct iproc_msi;
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/**
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* iProc PCIe device
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*
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* @dev: pointer to device data structure
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* @type: iProc PCIe interface type
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* @reg_offsets: register offsets
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* @base: PCIe host controller I/O register base
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* @base_addr: PCIe host controller register base physical address
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* @sysdata: Per PCI controller data (ARM-specific)
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* @root_bus: pointer to root bus
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* @phy: optional PHY device that controls the Serdes
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* @map_irq: function callback to map interrupts
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* @need_ob_cfg: indicates SW needs to configure the outbound mapping window
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* @ob: outbound mapping parameters
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* @msi: MSI data
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*/
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struct iproc_pcie {
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struct device *dev;
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enum iproc_pcie_type type;
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const u16 *reg_offsets;
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void __iomem *base;
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phys_addr_t base_addr;
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#ifdef CONFIG_ARM
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struct pci_sys_data sysdata;
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#endif
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struct pci_bus *root_bus;
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struct phy *phy;
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int (*map_irq)(const struct pci_dev *, u8, u8);
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bool need_ob_cfg;
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struct iproc_pcie_ob ob;
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struct iproc_msi *msi;
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};
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int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res);
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int iproc_pcie_remove(struct iproc_pcie *pcie);
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#ifdef CONFIG_PCIE_IPROC_MSI
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int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node);
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void iproc_msi_exit(struct iproc_pcie *pcie);
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#else
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static inline int iproc_msi_init(struct iproc_pcie *pcie,
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struct device_node *node)
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{
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return -ENODEV;
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}
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static inline void iproc_msi_exit(struct iproc_pcie *pcie)
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{
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}
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#endif
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#endif /* _PCIE_IPROC_H */
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