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- /*
- * Keystone PCI Controller's common includes
- *
- * Copyright (C) 2013-2014 Texas Instruments., Ltd.
- * http://www.ti.com
- *
- * Author: Murali Karicheri <m-karicheri2@ti.com>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #define MAX_LEGACY_IRQS 4
- #define MAX_MSI_HOST_IRQS 8
- #define MAX_LEGACY_HOST_IRQS 4
- struct keystone_pcie {
- struct pcie_port pp; /* pp.dbi_base is DT 0th res */
- struct clk *clk;
- /* PCI Device ID */
- u32 device_id;
- int num_legacy_host_irqs;
- int legacy_host_irqs[MAX_LEGACY_HOST_IRQS];
- struct device_node *legacy_intc_np;
- int num_msi_host_irqs;
- int msi_host_irqs[MAX_MSI_HOST_IRQS];
- struct device_node *msi_intc_np;
- struct irq_domain *legacy_irq_domain;
- struct device_node *np;
- int error_irq;
- /* Application register space */
- void __iomem *va_app_base; /* DT 1st resource */
- struct resource app;
- };
- /* Keystone DW specific MSI controller APIs/definitions */
- void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset);
- phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp);
- /* Keystone specific PCI controller APIs */
- void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie);
- void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset);
- void ks_dw_pcie_enable_error_irq(struct keystone_pcie *ks_pcie);
- irqreturn_t ks_dw_pcie_handle_error_irq(struct keystone_pcie *ks_pcie);
- int ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
- struct device_node *msi_intc_np);
- int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus,
- unsigned int devfn, int where, int size, u32 val);
- int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus,
- unsigned int devfn, int where, int size, u32 *val);
- void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie);
- int ks_dw_pcie_link_up(struct pcie_port *pp);
- void ks_dw_pcie_initiate_link_train(struct keystone_pcie *ks_pcie);
- void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq);
- void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq);
- void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp);
- int ks_dw_pcie_msi_host_init(struct pcie_port *pp,
- struct msi_controller *chip);
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