2 * Keystone PCI Controller's common includes
4 * Copyright (C) 2013-2014 Texas Instruments., Ltd.
7 * Author: Murali Karicheri <m-karicheri2@ti.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #define MAX_MSI_HOST_IRQS 8
17 struct keystone_pcie {
22 int num_legacy_host_irqs;
23 int legacy_host_irqs[PCI_NUM_INTX];
24 struct device_node *legacy_intc_np;
26 int num_msi_host_irqs;
27 int msi_host_irqs[MAX_MSI_HOST_IRQS];
28 struct device_node *msi_intc_np;
29 struct irq_domain *legacy_irq_domain;
30 struct device_node *np;
34 /* Application register space */
35 void __iomem *va_app_base; /* DT 1st resource */
39 /* Keystone DW specific MSI controller APIs/definitions */
40 void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset);
41 phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp);
43 /* Keystone specific PCI controller APIs */
44 void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie);
45 void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset);
46 void ks_dw_pcie_enable_error_irq(struct keystone_pcie *ks_pcie);
47 irqreturn_t ks_dw_pcie_handle_error_irq(struct keystone_pcie *ks_pcie);
48 int ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
49 struct device_node *msi_intc_np);
50 int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus,
51 unsigned int devfn, int where, int size, u32 val);
52 int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus,
53 unsigned int devfn, int where, int size, u32 *val);
54 void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie);
55 void ks_dw_pcie_initiate_link_train(struct keystone_pcie *ks_pcie);
56 void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq);
57 void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq);
58 void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp);
59 int ks_dw_pcie_msi_host_init(struct pcie_port *pp,
60 struct msi_controller *chip);
61 int ks_dw_pcie_link_up(struct dw_pcie *pci);