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0c4ffcfe MK |
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 | ||
19 | struct keystone_pcie { | |
20 | struct clk *clk; | |
21 | struct pcie_port pp; | |
8665a482 MK |
22 | /* PCI Device ID */ |
23 | u32 device_id; | |
0c4ffcfe MK |
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; | |
025dd3da MK |
32 | struct device_node *np; |
33 | ||
34 | int error_irq; | |
0c4ffcfe MK |
35 | |
36 | /* Application register space */ | |
37 | void __iomem *va_app_base; | |
38 | struct resource app; | |
39 | }; | |
40 | ||
41 | /* Keystone DW specific MSI controller APIs/definitions */ | |
42 | void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset); | |
98a97e6f | 43 | phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp); |
0c4ffcfe MK |
44 | |
45 | /* Keystone specific PCI controller APIs */ | |
46 | void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie); | |
47 | void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset); | |
025dd3da MK |
48 | void ks_dw_pcie_enable_error_irq(void __iomem *reg_base); |
49 | irqreturn_t ks_dw_pcie_handle_error_irq(struct device *dev, | |
50 | void __iomem *reg_base); | |
0c4ffcfe MK |
51 | int ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie, |
52 | struct device_node *msi_intc_np); | |
53 | int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus, | |
54 | unsigned int devfn, int where, int size, u32 val); | |
55 | int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus, | |
56 | unsigned int devfn, int where, int size, u32 *val); | |
57 | void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie); | |
58 | int ks_dw_pcie_link_up(struct pcie_port *pp); | |
59 | void ks_dw_pcie_initiate_link_train(struct keystone_pcie *ks_pcie); | |
60 | void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq); | |
61 | void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq); | |
62 | void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp); | |
63 | int ks_dw_pcie_msi_host_init(struct pcie_port *pp, | |
c2791b80 | 64 | struct msi_controller *chip); |