1 /* 2 * Include file for NEC VR4100 series PCI Control Unit. 3 * 4 * Copyright (C) 2004-2005 Yoichi Yuasa <yuasa@linux-mips.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 #ifndef __NEC_VR41XX_PCI_H 21 #define __NEC_VR41XX_PCI_H 22 23 #define PCI_MASTER_ADDRESS_MASK 0x7fffffffU 24 25 struct pci_master_address_conversion { 26 uint32_t bus_base_address; 27 uint32_t address_mask; 28 uint32_t pci_base_address; 29 }; 30 31 struct pci_target_address_conversion { 32 uint32_t address_mask; 33 uint32_t bus_base_address; 34 }; 35 36 typedef enum { 37 CANNOT_LOCK_FROM_DEVICE, 38 CAN_LOCK_FROM_DEVICE, 39 } pci_exclusive_access_t; 40 41 struct pci_mailbox_address { 42 uint32_t base_address; 43 }; 44 45 struct pci_target_address_window { 46 uint32_t base_address; 47 }; 48 49 typedef enum { 50 PCI_ARBITRATION_MODE_FAIR, 51 PCI_ARBITRATION_MODE_ALTERNATE_0, 52 PCI_ARBITRATION_MODE_ALTERNATE_B, 53 } pci_arbiter_priority_control_t; 54 55 typedef enum { 56 PCI_TAKE_AWAY_GNT_DISABLE, 57 PCI_TAKE_AWAY_GNT_ENABLE, 58 } pci_take_away_gnt_mode_t; 59 60 struct pci_controller_unit_setup { 61 struct pci_master_address_conversion *master_memory1; 62 struct pci_master_address_conversion *master_memory2; 63 64 struct pci_target_address_conversion *target_memory1; 65 struct pci_target_address_conversion *target_memory2; 66 67 struct pci_master_address_conversion *master_io; 68 69 pci_exclusive_access_t exclusive_access; 70 71 uint32_t pci_clock_max; 72 uint8_t wait_time_limit_from_irdy_to_trdy; /* Only VR4122 is supported */ 73 74 struct pci_mailbox_address *mailbox; 75 struct pci_target_address_window *target_window1; 76 struct pci_target_address_window *target_window2; 77 78 uint8_t master_latency_timer; 79 uint8_t retry_limit; 80 81 pci_arbiter_priority_control_t arbiter_priority_control; 82 pci_take_away_gnt_mode_t take_away_gnt_mode; 83 84 struct resource *mem_resource; 85 struct resource *io_resource; 86 }; 87 88 extern void vr41xx_pciu_setup(struct pci_controller_unit_setup *setup); 89 90 #endif /* __NEC_VR41XX_PCI_H */ 91
