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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Include file for NEC VR4100 series PCI Control Unit.
*
* Copyright (C) 2004-2005 Yoichi Yuasa <yuasa@linux-mips.org>
*/
#ifndef __NEC_VR41XX_PCI_H
#define __NEC_VR41XX_PCI_H
#define PCI_MASTER_ADDRESS_MASK 0x7fffffffU
struct pci_master_address_conversion {
uint32_t bus_base_address;
uint32_t address_mask;
uint32_t pci_base_address;
};
struct pci_target_address_conversion {
uint32_t address_mask;
uint32_t bus_base_address;
};
typedef enum {
CANNOT_LOCK_FROM_DEVICE,
CAN_LOCK_FROM_DEVICE,
} pci_exclusive_access_t;
struct pci_mailbox_address {
uint32_t base_address;
};
struct pci_target_address_window {
uint32_t base_address;
};
typedef enum {
PCI_ARBITRATION_MODE_FAIR,
PCI_ARBITRATION_MODE_ALTERNATE_0,
PCI_ARBITRATION_MODE_ALTERNATE_B,
} pci_arbiter_priority_control_t;
typedef enum {
PCI_TAKE_AWAY_GNT_DISABLE,
PCI_TAKE_AWAY_GNT_ENABLE,
} pci_take_away_gnt_mode_t;
struct pci_controller_unit_setup {
struct pci_master_address_conversion *master_memory1;
struct pci_master_address_conversion *master_memory2;
struct pci_target_address_conversion *target_memory1;
struct pci_target_address_conversion *target_memory2;
struct pci_master_address_conversion *master_io;
pci_exclusive_access_t exclusive_access;
uint32_t pci_clock_max;
uint8_t wait_time_limit_from_irdy_to_trdy; /* Only VR4122 is supported */
struct pci_mailbox_address *mailbox;
struct pci_target_address_window *target_window1;
struct pci_target_address_window *target_window2;
uint8_t master_latency_timer;
uint8_t retry_limit;
pci_arbiter_priority_control_t arbiter_priority_control;
pci_take_away_gnt_mode_t take_away_gnt_mode;
struct resource *mem_resource;
struct resource *io_resource;
};
extern void vr41xx_pciu_setup(struct pci_controller_unit_setup *setup);
#endif /* __NEC_VR41XX_PCI_H */