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