129 строки
3.5 KiB
C
129 строки
3.5 KiB
C
/*
|
|
* 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_BCMA = 0,
|
|
IPROC_PCIE_PAXB,
|
|
IPROC_PCIE_PAXB_V2,
|
|
IPROC_PCIE_PAXC,
|
|
IPROC_PCIE_PAXC_V2,
|
|
};
|
|
|
|
/**
|
|
* iProc PCIe outbound mapping
|
|
* @axi_offset: offset from the AXI address to the internal address used by
|
|
* the iProc PCIe core
|
|
* @nr_windows: total number of supported outbound mapping windows
|
|
*/
|
|
struct iproc_pcie_ob {
|
|
resource_size_t axi_offset;
|
|
unsigned int nr_windows;
|
|
};
|
|
|
|
/**
|
|
* iProc PCIe inbound mapping
|
|
* @nr_regions: total number of supported inbound mapping regions
|
|
*/
|
|
struct iproc_pcie_ib {
|
|
unsigned int nr_regions;
|
|
};
|
|
|
|
struct iproc_pcie_ob_map;
|
|
struct iproc_pcie_ib_map;
|
|
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
|
|
* @ep_is_internal: indicates an internal emulated endpoint device is connected
|
|
* @has_apb_err_disable: indicates the controller can be configured to prevent
|
|
* unsupported request from being forwarded as an APB bus error
|
|
*
|
|
* @need_ob_cfg: indicates SW needs to configure the outbound mapping window
|
|
* @ob: outbound mapping related parameters
|
|
* @ob_map: outbound mapping related parameters specific to the controller
|
|
*
|
|
* @ib: inbound mapping related parameters
|
|
* @ib_map: outbound mapping region related parameters
|
|
*
|
|
* @need_msi_steer: indicates additional configuration of the iProc PCIe
|
|
* controller is required to steer MSI writes to external interrupt controller
|
|
* @msi: MSI data
|
|
*/
|
|
struct iproc_pcie {
|
|
struct device *dev;
|
|
enum iproc_pcie_type type;
|
|
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 ep_is_internal;
|
|
bool has_apb_err_disable;
|
|
|
|
bool need_ob_cfg;
|
|
struct iproc_pcie_ob ob;
|
|
const struct iproc_pcie_ob_map *ob_map;
|
|
|
|
struct iproc_pcie_ib ib;
|
|
const struct iproc_pcie_ib_map *ib_map;
|
|
|
|
bool need_msi_steer;
|
|
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 */
|