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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* 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) 2003-2008 Yoichi Yuasa <yuasa@linux-mips.org>
*/
#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
*/
extern int vr41xx_set_intassign(unsigned int irq, unsigned char intassign);
extern int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int));
#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);
#ifdef CONFIG_SERIAL_VR41XX_CONSOLE
extern void vr41xx_siu_setup(void);
#else
static inline void vr41xx_siu_setup(void) {}
#endif
#endif /* __NEC_VR41XX_H */
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