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/*
* include/asm-mips/vr41xx/vr41xx.h
*
* Include file for NEC VR4100 series.
*
* Copyright (C) 1999 Michael Klar
* Copyright (C) 2001, 2002 Paul Mundt
* Copyright (C) 2002 MontaVista Software, Inc.
* Copyright (C) 2002 TimeSys Corp.
* Copyright (C) 2003-2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
*
* 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.
*/
#ifndef __NEC_VR41XX_H
#define __NEC_VR41XX_H
#include <linux/interrupt.h>
/*
* CPU Revision
*/
/* VR4122 0x00000c70-0x00000c72 */
#define PRID_VR4122_REV1_0 0x00000c70
#define PRID_VR4122_REV2_0 0x00000c70
#define PRID_VR4122_REV2_1 0x00000c70
#define PRID_VR4122_REV3_0 0x00000c71
#define PRID_VR4122_REV3_1 0x00000c72
/* VR4181A 0x00000c73-0x00000c7f */
#define PRID_VR4181A_REV1_0 0x00000c73
#define PRID_VR4181A_REV1_1 0x00000c74
/* VR4131 0x00000c80-0x00000c83 */
#define PRID_VR4131_REV1_2 0x00000c80
#define PRID_VR4131_REV2_0 0x00000c81
#define PRID_VR4131_REV2_1 0x00000c82
#define PRID_VR4131_REV2_2 0x00000c83
/* VR4133 0x00000c84- */
#define PRID_VR4133 0x00000c84
/*
* Bus Control Uint
*/
extern unsigned long vr41xx_calculate_clock_frequency(void);
extern unsigned long vr41xx_get_vtclock_frequency(void);
extern unsigned long vr41xx_get_tclock_frequency(void);
/*
* Clock Mask Unit
*/
typedef enum {
PIU_CLOCK,
SIU_CLOCK,
AIU_CLOCK,
KIU_CLOCK,
FIR_CLOCK,
DSIU_CLOCK,
CSI_CLOCK,
PCIU_CLOCK,
HSP_CLOCK,
PCI_CLOCK,
CEU_CLOCK,
ETHER0_CLOCK,
ETHER1_CLOCK
} vr41xx_clock_t;
extern void vr41xx_supply_clock(vr41xx_clock_t clock);
extern void vr41xx_mask_clock(vr41xx_clock_t clock);
/*
* Interrupt Control Unit
*/
/* CPU core Interrupt Numbers */
#define MIPS_CPU_IRQ_BASE 0
#define MIPS_CPU_IRQ(x) (MIPS_CPU_IRQ_BASE + (x))
#define MIPS_SOFTINT0_IRQ MIPS_CPU_IRQ(0)
#define MIPS_SOFTINT1_IRQ MIPS_CPU_IRQ(1)
#define INT0_CASCADE_IRQ MIPS_CPU_IRQ(2)
#define INT1_CASCADE_IRQ MIPS_CPU_IRQ(3)
#define INT2_CASCADE_IRQ MIPS_CPU_IRQ(4)
#define INT3_CASCADE_IRQ MIPS_CPU_IRQ(5)
#define INT4_CASCADE_IRQ MIPS_CPU_IRQ(6)
#define TIMER_IRQ MIPS_CPU_IRQ(7)
/* SYINT1 Interrupt Numbers */
#define SYSINT1_IRQ_BASE 8
#define SYSINT1_IRQ(x) (SYSINT1_IRQ_BASE + (x))
#define BATTRY_IRQ SYSINT1_IRQ(0)
#define POWER_IRQ SYSINT1_IRQ(1)
#define RTCLONG1_IRQ SYSINT1_IRQ(2)
#define ELAPSEDTIME_IRQ SYSINT1_IRQ(3)
/* RFU */
#define PIU_IRQ SYSINT1_IRQ(5)
#define AIU_IRQ SYSINT1_IRQ(6)
#define KIU_IRQ SYSINT1_IRQ(7)
#define GIUINT_CASCADE_IRQ SYSINT1_IRQ(8)
#define SIU_IRQ SYSINT1_IRQ(9)
#define BUSERR_IRQ SYSINT1_IRQ(10)
#define SOFTINT_IRQ SYSINT1_IRQ(11)
#define CLKRUN_IRQ SYSINT1_IRQ(12)
#define DOZEPIU_IRQ SYSINT1_IRQ(13)
#define SYSINT1_IRQ_LAST DOZEPIU_IRQ
/* SYSINT2 Interrupt Numbers */
#define SYSINT2_IRQ_BASE 24
#define SYSINT2_IRQ(x) (SYSINT2_IRQ_BASE + (x))
#define RTCLONG2_IRQ SYSINT2_IRQ(0)
#define LED_IRQ SYSINT2_IRQ(1)
#define HSP_IRQ SYSINT2_IRQ(2)
#define TCLOCK_IRQ SYSINT2_IRQ(3)
#define FIR_IRQ SYSINT2_IRQ(4)
#define CEU_IRQ SYSINT2_IRQ(4) /* same number as FIR_IRQ */
#define DSIU_IRQ SYSINT2_IRQ(5)
#define PCI_IRQ SYSINT2_IRQ(6)
#define SCU_IRQ SYSINT2_IRQ(7)
#define CSI_IRQ SYSINT2_IRQ(8)
#define BCU_IRQ SYSINT2_IRQ(9)
#define ETHERNET_IRQ SYSINT2_IRQ(10)
#define SYSINT2_IRQ_LAST ETHERNET_IRQ
/* GIU Interrupt Numbers */
#define GIU_IRQ_BASE 40
#define GIU_IRQ(x) (GIU_IRQ_BASE + (x)) /* IRQ 40-71 */
#define GIU_IRQ_LAST GIU_IRQ(31)
#define GIU_IRQ_TO_PIN(x) ((x) - GIU_IRQ_BASE) /* Pin 0-31 */
extern int vr41xx_set_intassign(unsigned int irq, unsigned char intassign);
extern int vr41xx_cascade_irq(unsigned int irq, int (*get_irq_number)(int irq));
#define PIUINT_COMMAND 0x0040
#define PIUINT_DATA 0x0020
#define PIUINT_PAGE1 0x0010
#define PIUINT_PAGE0 0x0008
#define PIUINT_DATALOST 0x0004
#define PIUINT_STATUSCHANGE 0x0001
extern void vr41xx_enable_piuint(uint16_t mask);
extern void vr41xx_disable_piuint(uint16_t mask);
#define AIUINT_INPUT_DMAEND 0x0800
#define AIUINT_INPUT_DMAHALT 0x0400
#define AIUINT_INPUT_DATALOST 0x0200
#define AIUINT_INPUT_DATA 0x0100
#define AIUINT_OUTPUT_DMAEND 0x0008
#define AIUINT_OUTPUT_DMAHALT 0x0004
#define AIUINT_OUTPUT_NODATA 0x0002
extern void vr41xx_enable_aiuint(uint16_t mask);
extern void vr41xx_disable_aiuint(uint16_t mask);
#define KIUINT_DATALOST 0x0004
#define KIUINT_DATAREADY 0x0002
#define KIUINT_SCAN 0x0001
extern void vr41xx_enable_kiuint(uint16_t mask);
extern void vr41xx_disable_kiuint(uint16_t mask);
#define DSIUINT_CTS 0x0800
#define DSIUINT_RXERR 0x0400
#define DSIUINT_RX 0x0200
#define DSIUINT_TX 0x0100
#define DSIUINT_ALL 0x0f00
extern void vr41xx_enable_dsiuint(uint16_t mask);
extern void vr41xx_disable_dsiuint(uint16_t mask);
#define FIRINT_UNIT 0x0010
#define FIRINT_RX_DMAEND 0x0008
#define FIRINT_RX_DMAHALT 0x0004
#define FIRINT_TX_DMAEND 0x0002
#define FIRINT_TX_DMAHALT 0x0001
extern void vr41xx_enable_firint(uint16_t mask);
extern void vr41xx_disable_firint(uint16_t mask);
extern void vr41xx_enable_pciint(void);
extern void vr41xx_disable_pciint(void);
extern void vr41xx_enable_scuint(void);
extern void vr41xx_disable_scuint(void);
#define CSIINT_TX_DMAEND 0x0040
#define CSIINT_TX_DMAHALT 0x0020
#define CSIINT_TX_DATA 0x0010
#define CSIINT_TX_FIFOEMPTY 0x0008
#define CSIINT_RX_DMAEND 0x0004
#define CSIINT_RX_DMAHALT 0x0002
#define CSIINT_RX_FIFOEMPTY 0x0001
extern void vr41xx_enable_csiint(uint16_t mask);
extern void vr41xx_disable_csiint(uint16_t mask);
extern void vr41xx_enable_bcuint(void);
extern void vr41xx_disable_bcuint(void);
/*
* General-Purpose I/O Unit
*/
enum {
TRIGGER_LEVEL,
TRIGGER_EDGE,
TRIGGER_EDGE_FALLING,
TRIGGER_EDGE_RISING
};
enum {
SIGNAL_THROUGH,
SIGNAL_HOLD
};
extern void vr41xx_set_irq_trigger(int pin, int trigger, int hold);
enum {
LEVEL_LOW,
LEVEL_HIGH
};
extern void vr41xx_set_irq_level(int pin, int level);
enum {
PIO_INPUT,
PIO_OUTPUT
};
enum {
DATA_LOW,
DATA_HIGH
};
/*
* PCI Control Unit
*/
#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_H */
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