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