^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2014-2015 Broadcom Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef _PCIE_IPROC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define _PCIE_IPROC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * iProc PCIe interface type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * PAXB is the wrapper used in root complex that can be connected to an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * external endpoint device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * PAXC is the wrapper used in root complex dedicated for internal emulated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * endpoint devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) enum iproc_pcie_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) IPROC_PCIE_PAXB_BCMA = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) IPROC_PCIE_PAXB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) IPROC_PCIE_PAXB_V2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) IPROC_PCIE_PAXC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) IPROC_PCIE_PAXC_V2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * iProc PCIe outbound mapping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * @axi_offset: offset from the AXI address to the internal address used by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * the iProc PCIe core
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * @nr_windows: total number of supported outbound mapping windows
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct iproc_pcie_ob {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) resource_size_t axi_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) unsigned int nr_windows;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * iProc PCIe inbound mapping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * @nr_regions: total number of supported inbound mapping regions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct iproc_pcie_ib {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) unsigned int nr_regions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct iproc_pcie_ob_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct iproc_pcie_ib_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct iproc_msi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * iProc PCIe device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * @dev: pointer to device data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * @type: iProc PCIe interface type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * @reg_offsets: register offsets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * @base: PCIe host controller I/O register base
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * @base_addr: PCIe host controller register base physical address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * @phy: optional PHY device that controls the Serdes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * @map_irq: function callback to map interrupts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * @ep_is_internal: indicates an internal emulated endpoint device is connected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * @iproc_cfg_read: indicates the iProc config read function should be used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * @rej_unconfig_pf: indicates the root complex needs to detect and reject
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * enumeration against unconfigured physical functions emulated in the ASIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * @has_apb_err_disable: indicates the controller can be configured to prevent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * unsupported request from being forwarded as an APB bus error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * @fix_paxc_cap: indicates the controller has corrupted capability list in its
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * config space registers and requires SW based fixup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * @need_ob_cfg: indicates SW needs to configure the outbound mapping window
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * @ob: outbound mapping related parameters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * @ob_map: outbound mapping related parameters specific to the controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * @need_ib_cfg: indicates SW needs to configure the inbound mapping window
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * @ib: inbound mapping related parameters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * @ib_map: outbound mapping region related parameters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * @need_msi_steer: indicates additional configuration of the iProc PCIe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * controller is required to steer MSI writes to external interrupt controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * @msi: MSI data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct iproc_pcie {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) enum iproc_pcie_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) u16 *reg_offsets;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) void __iomem *base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) phys_addr_t base_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct resource mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct phy *phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int (*map_irq)(const struct pci_dev *, u8, u8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) bool ep_is_internal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) bool iproc_cfg_read;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) bool rej_unconfig_pf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) bool has_apb_err_disable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) bool fix_paxc_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) bool need_ob_cfg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct iproc_pcie_ob ob;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) const struct iproc_pcie_ob_map *ob_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) bool need_ib_cfg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct iproc_pcie_ib ib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) const struct iproc_pcie_ib_map *ib_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) bool need_msi_steer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct iproc_msi *msi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) int iproc_pcie_remove(struct iproc_pcie *pcie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) int iproc_pcie_shutdown(struct iproc_pcie *pcie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #ifdef CONFIG_PCIE_IPROC_MSI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) void iproc_msi_exit(struct iproc_pcie *pcie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) static inline int iproc_msi_init(struct iproc_pcie *pcie,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct device_node *node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static inline void iproc_msi_exit(struct iproc_pcie *pcie)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #endif /* _PCIE_IPROC_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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