1 /* 2 * Copyright (C) 2014-2015 Broadcom Corporation 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation version 2. 7 * 8 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 9 * kind, whether express or implied; without even the implied warranty 10 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 */ 13 14 #ifndef _PCIE_IPROC_H 15 #define _PCIE_IPROC_H 16 17 /** 18 * iProc PCIe interface type 19 * 20 * PAXB is the wrapper used in root complex that can be connected to an 21 * external endpoint device. 22 * 23 * PAXC is the wrapper used in root complex dedicated for internal emulated 24 * endpoint devices. 25 */ 26 enum iproc_pcie_type { 27 IPROC_PCIE_PAXB = 0, 28 IPROC_PCIE_PAXC, 29 }; 30 31 /** 32 * iProc PCIe outbound mapping 33 * @set_oarr_size: indicates the OARR size bit needs to be set 34 * @axi_offset: offset from the AXI address to the internal address used by 35 * the iProc PCIe core 36 * @window_size: outbound window size 37 */ 38 struct iproc_pcie_ob { 39 bool set_oarr_size; 40 resource_size_t axi_offset; 41 resource_size_t window_size; 42 }; 43 44 struct iproc_msi; 45 46 /** 47 * iProc PCIe device 48 * 49 * @dev: pointer to device data structure 50 * @type: iProc PCIe interface type 51 * @reg_offsets: register offsets 52 * @base: PCIe host controller I/O register base 53 * @base_addr: PCIe host controller register base physical address 54 * @sysdata: Per PCI controller data (ARM-specific) 55 * @root_bus: pointer to root bus 56 * @phy: optional PHY device that controls the Serdes 57 * @map_irq: function callback to map interrupts 58 * @need_ob_cfg: indicates SW needs to configure the outbound mapping window 59 * @ob: outbound mapping parameters 60 * @msi: MSI data 61 */ 62 struct iproc_pcie { 63 struct device *dev; 64 enum iproc_pcie_type type; 65 const u16 *reg_offsets; 66 void __iomem *base; 67 phys_addr_t base_addr; 68 #ifdef CONFIG_ARM 69 struct pci_sys_data sysdata; 70 #endif 71 struct resource mem; 72 struct pci_bus *root_bus; 73 struct phy *phy; 74 int (*map_irq)(const struct pci_dev *, u8, u8); 75 bool need_ob_cfg; 76 struct iproc_pcie_ob ob; 77 struct iproc_msi *msi; 78 }; 79 80 int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res); 81 int iproc_pcie_remove(struct iproc_pcie *pcie); 82 83 #ifdef CONFIG_PCIE_IPROC_MSI 84 int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node); 85 void iproc_msi_exit(struct iproc_pcie *pcie); 86 #else iproc_msi_init(struct iproc_pcie * pcie,struct device_node * node)87static inline int iproc_msi_init(struct iproc_pcie *pcie, 88 struct device_node *node) 89 { 90 return -ENODEV; 91 } iproc_msi_exit(struct iproc_pcie * pcie)92static inline void iproc_msi_exit(struct iproc_pcie *pcie) 93 { 94 } 95 #endif 96 97 #endif /* _PCIE_IPROC_H */ 98