| 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 |  | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 15 | #define MAX_MSI_HOST_IRQS		8 | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 16 |  | 
|  | 17 | struct keystone_pcie { | 
| Kishon Vijay Abraham I | 442ec4c | 2017-02-15 18:48:14 +0530 | [diff] [blame] | 18 | struct dw_pcie		*pci; | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 19 | struct	clk		*clk; | 
| Murali Karicheri | 8665a48 | 2014-09-10 13:12:39 -0400 | [diff] [blame] | 20 | /* PCI Device ID */ | 
|  | 21 | u32			device_id; | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 22 | int			num_legacy_host_irqs; | 
| Bjorn Helgaas | da4c4be | 2017-08-15 16:27:57 -0500 | [diff] [blame] | 23 | int			legacy_host_irqs[PCI_NUM_INTX]; | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 24 | struct			device_node *legacy_intc_np; | 
|  | 25 |  | 
|  | 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; | 
| Murali Karicheri | 025dd3d | 2016-04-11 10:50:30 -0400 | [diff] [blame] | 30 | struct device_node	*np; | 
|  | 31 |  | 
|  | 32 | int error_irq; | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 33 |  | 
|  | 34 | /* Application register space */ | 
| Bjorn Helgaas | 4841f3ad | 2016-10-06 13:36:57 -0500 | [diff] [blame] | 35 | void __iomem		*va_app_base;	/* DT 1st resource */ | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 36 | struct resource		app; | 
|  | 37 | }; | 
|  | 38 |  | 
|  | 39 | /* Keystone DW specific MSI controller APIs/definitions */ | 
|  | 40 | 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] | 41 | 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] | 42 |  | 
|  | 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); | 
| Bjorn Helgaas | 5649e4c | 2016-10-06 13:36:56 -0500 | [diff] [blame] | 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); | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 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); | 
| Murali Karicheri | 0c4ffcf | 2014-09-02 17:26:19 -0600 | [diff] [blame] | 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, | 
| Yijing Wang | c2791b8 | 2014-11-11 17:45:45 -0700 | [diff] [blame] | 60 | struct msi_controller *chip); | 
| Kishon Vijay Abraham I | 442ec4c | 2017-02-15 18:48:14 +0530 | [diff] [blame] | 61 | int ks_dw_pcie_link_up(struct dw_pcie *pci); |