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131 lines
4.0 KiB
131 lines
4.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright (C) 2014-2015 Broadcom Corporation |
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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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* enum iproc_pcie_type - iProc PCIe interface type |
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* @IPROC_PCIE_PAXB_BCMA: BCMA-based host controllers |
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* @IPROC_PCIE_PAXB: PAXB-based host controllers for |
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* NS, NSP, Cygnus, NS2, and Pegasus SOCs |
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* @IPROC_PCIE_PAXB_V2: PAXB-based host controllers for Stingray SoCs |
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* @IPROC_PCIE_PAXC: PAXC-based host controllers |
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* @IPROC_PCIE_PAXC_V2: PAXC-based host controllers (second generation) |
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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_BCMA = 0, |
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IPROC_PCIE_PAXB, |
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IPROC_PCIE_PAXB_V2, |
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IPROC_PCIE_PAXC, |
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IPROC_PCIE_PAXC_V2, |
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}; |
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/** |
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* struct iproc_pcie_ob - iProc PCIe outbound mapping |
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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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* @nr_windows: total number of supported outbound mapping windows |
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*/ |
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struct iproc_pcie_ob { |
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resource_size_t axi_offset; |
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unsigned int nr_windows; |
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}; |
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/** |
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* struct iproc_pcie_ib - iProc PCIe inbound mapping |
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* @nr_regions: total number of supported inbound mapping regions |
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*/ |
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struct iproc_pcie_ib { |
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unsigned int nr_regions; |
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}; |
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struct iproc_pcie_ob_map; |
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struct iproc_pcie_ib_map; |
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struct iproc_msi; |
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/** |
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* struct iproc_pcie - iProc PCIe device |
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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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* @mem: host bridge memory window resource |
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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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* @ep_is_internal: indicates an internal emulated endpoint device is connected |
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* @iproc_cfg_read: indicates the iProc config read function should be used |
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* @rej_unconfig_pf: indicates the root complex needs to detect and reject |
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* enumeration against unconfigured physical functions emulated in the ASIC |
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* @has_apb_err_disable: indicates the controller can be configured to prevent |
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* unsupported request from being forwarded as an APB bus error |
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* @fix_paxc_cap: indicates the controller has corrupted capability list in its |
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* config space registers and requires SW based fixup |
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* |
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* @need_ob_cfg: indicates SW needs to configure the outbound mapping window |
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* @ob: outbound mapping related parameters |
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* @ob_map: outbound mapping related parameters specific to the controller |
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* |
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* @need_ib_cfg: indicates SW needs to configure the inbound mapping window |
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* @ib: inbound mapping related parameters |
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* @ib_map: outbound mapping region related parameters |
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* |
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* @need_msi_steer: indicates additional configuration of the iProc PCIe |
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* controller is required to steer MSI writes to external interrupt controller |
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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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u16 *reg_offsets; |
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void __iomem *base; |
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phys_addr_t base_addr; |
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struct resource mem; |
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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 ep_is_internal; |
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bool iproc_cfg_read; |
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bool rej_unconfig_pf; |
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bool has_apb_err_disable; |
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bool fix_paxc_cap; |
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bool need_ob_cfg; |
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struct iproc_pcie_ob ob; |
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const struct iproc_pcie_ob_map *ob_map; |
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bool need_ib_cfg; |
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struct iproc_pcie_ib ib; |
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const struct iproc_pcie_ib_map *ib_map; |
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bool need_msi_steer; |
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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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int iproc_pcie_shutdown(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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