/*
* Include file for NEC VR4100 series PCI Control Unit.
*
* Copyright (C) 2004-2005 Yoichi Yuasa <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#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 */