| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 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 { |
| Bjorn Helgaas | 4841f3ad | 2016-10-06 13:36:57 -0500 | [diff] [blame] | 20 | struct pcie_port pp; /* pp.dbi_base is DT 0th res */ |
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 21 | struct clk *clk; |
| Murali Karicheri | 8665a48 | 2014-09-10 13:12:39 -0400 | [diff] [blame] | 22 | /* PCI Device ID */ |
| 23 | u32 device_id; |
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 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; |
| Murali Karicheri | 025dd3d | 2016-04-11 10:50:30 -0400 | [diff] [blame] | 32 | struct device_node *np; |
| 33 | |
| 34 | int error_irq; |
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 35 | |
| 36 | /* Application register space */ |
| Bjorn Helgaas | 4841f3ad | 2016-10-06 13:36:57 -0500 | [diff] [blame] | 37 | void __iomem *va_app_base; /* DT 1st resource */ |
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 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); |
| Lucas Stach | 98a97e6 | 2015-09-18 13:58:35 -0500 | [diff] [blame] | 43 | phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp); |
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 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); |
| Bjorn Helgaas | 5649e4c | 2016-10-06 13:36:56 -0500 | [diff] [blame] | 48 | void ks_dw_pcie_enable_error_irq(struct keystone_pcie *ks_pcie); |
| 49 | irqreturn_t ks_dw_pcie_handle_error_irq(struct keystone_pcie *ks_pcie); |
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 50 | int ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie, |
| 51 | struct device_node *msi_intc_np); |
| 52 | int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus, |
| 53 | unsigned int devfn, int where, int size, u32 val); |
| 54 | int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus, |
| 55 | unsigned int devfn, int where, int size, u32 *val); |
| 56 | void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie); |
| 57 | int ks_dw_pcie_link_up(struct pcie_port *pp); |
| 58 | void ks_dw_pcie_initiate_link_train(struct keystone_pcie *ks_pcie); |
| 59 | void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq); |
| 60 | void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq); |
| 61 | void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp); |
| 62 | int ks_dw_pcie_msi_host_init(struct pcie_port *pp, |
| Yijing Wang | c2791b8 | 2014-11-11 17:45:45 -0700 | [diff] [blame] | 63 | struct msi_controller *chip); |