1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Keystone PCI Controller's common includes
5 * Copyright (C) 2013-2014 Texas Instruments., Ltd.
8 * Author: Murali Karicheri <m-karicheri2@ti.com>
11 #define MAX_MSI_HOST_IRQS 8
13 struct keystone_pcie
{
18 int num_legacy_host_irqs
;
19 int legacy_host_irqs
[PCI_NUM_INTX
];
20 struct device_node
*legacy_intc_np
;
22 int num_msi_host_irqs
;
23 int msi_host_irqs
[MAX_MSI_HOST_IRQS
];
24 struct device_node
*msi_intc_np
;
25 struct irq_domain
*legacy_irq_domain
;
26 struct device_node
*np
;
30 /* Application register space */
31 void __iomem
*va_app_base
; /* DT 1st resource */
35 /* Keystone DW specific MSI controller APIs/definitions */
36 void ks_dw_pcie_handle_msi_irq(struct keystone_pcie
*ks_pcie
, int offset
);
37 phys_addr_t
ks_dw_pcie_get_msi_addr(struct pcie_port
*pp
);
39 /* Keystone specific PCI controller APIs */
40 void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie
*ks_pcie
);
41 void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie
*ks_pcie
, int offset
);
42 void ks_dw_pcie_enable_error_irq(struct keystone_pcie
*ks_pcie
);
43 irqreturn_t
ks_dw_pcie_handle_error_irq(struct keystone_pcie
*ks_pcie
);
44 int ks_dw_pcie_host_init(struct keystone_pcie
*ks_pcie
,
45 struct device_node
*msi_intc_np
);
46 int ks_dw_pcie_wr_other_conf(struct pcie_port
*pp
, struct pci_bus
*bus
,
47 unsigned int devfn
, int where
, int size
, u32 val
);
48 int ks_dw_pcie_rd_other_conf(struct pcie_port
*pp
, struct pci_bus
*bus
,
49 unsigned int devfn
, int where
, int size
, u32
*val
);
50 void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie
*ks_pcie
);
51 void ks_dw_pcie_initiate_link_train(struct keystone_pcie
*ks_pcie
);
52 void ks_dw_pcie_msi_irq_ack(int i
, struct pcie_port
*pp
);
53 void ks_dw_pcie_msi_set_irq(struct pcie_port
*pp
, int irq
);
54 void ks_dw_pcie_msi_clear_irq(struct pcie_port
*pp
, int irq
);
55 void ks_dw_pcie_v3_65_scan_bus(struct pcie_port
*pp
);
56 int ks_dw_pcie_msi_host_init(struct pcie_port
*pp
);
57 int ks_dw_pcie_link_up(struct dw_pcie
*pci
);