1/*
2 * Keystone PCI Controller's common includes
3 *
4 * Copyright (C) 2013-2014 Texas Instruments., Ltd.
5 *		http://www.ti.com
6 *
7 * Author: Murali Karicheri <m-karicheri2@ti.com>
8 *
9 *
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.
13 */
14
15#define MAX_LEGACY_IRQS			4
16#define MAX_MSI_HOST_IRQS		8
17#define MAX_LEGACY_HOST_IRQS		4
18
19struct keystone_pcie {
20	struct	clk		*clk;
21	struct	pcie_port	pp;
22	/* PCI Device ID */
23	u32			device_id;
24	int			num_legacy_host_irqs;
25	int			legacy_host_irqs[MAX_LEGACY_HOST_IRQS];
26	struct			device_node *legacy_intc_np;
27
28	int			num_msi_host_irqs;
29	int			msi_host_irqs[MAX_MSI_HOST_IRQS];
30	struct			device_node *msi_intc_np;
31	struct irq_domain	*legacy_irq_domain;
32
33	/* Application register space */
34	void __iomem		*va_app_base;
35	struct resource		app;
36};
37
38/* Keystone DW specific MSI controller APIs/definitions */
39void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset);
40phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp);
41
42/* Keystone specific PCI controller APIs */
43void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie);
44void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset);
45int  ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
46			struct device_node *msi_intc_np);
47int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus,
48		unsigned int devfn, int where, int size, u32 val);
49int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus,
50		unsigned int devfn, int where, int size, u32 *val);
51void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie);
52int ks_dw_pcie_link_up(struct pcie_port *pp);
53void ks_dw_pcie_initiate_link_train(struct keystone_pcie *ks_pcie);
54void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq);
55void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq);
56void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp);
57int ks_dw_pcie_msi_host_init(struct pcie_port *pp,
58		struct msi_controller *chip);
59