1 files changed, 77 insertions, 0 deletions
diff --git a/arch/mips/include/asm/vr41xx/pci.h b/arch/mips/include/asm/vr41xx/pci.h
new file mode 100644
index 000000000..ad93b5e89
--- /dev/null
+++ b/arch/mips/include/asm/vr41xx/pci.h
@@ -0,0 +1,77 @@
+/* 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 */