149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* include/asm-mips/vr41xx/vr41xx.h
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*
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* Include file for NEC VR4100 series.
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*
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* Copyright (C) 1999 Michael Klar
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* Copyright (C) 2001, 2002 Paul Mundt
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* Copyright (C) 2002 MontaVista Software, Inc.
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* Copyright (C) 2002 TimeSys Corp.
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* Copyright (C) 2003-2008 Yoichi Yuasa <yuasa@linux-mips.org>
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*/
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#ifndef __NEC_VR41XX_H
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#define __NEC_VR41XX_H
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#include <linux/interrupt.h>
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/*
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* CPU Revision
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*/
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/* VR4122 0x00000c70-0x00000c72 */
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#define PRID_VR4122_REV1_0 0x00000c70
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#define PRID_VR4122_REV2_0 0x00000c70
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#define PRID_VR4122_REV2_1 0x00000c70
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#define PRID_VR4122_REV3_0 0x00000c71
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#define PRID_VR4122_REV3_1 0x00000c72
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/* VR4181A 0x00000c73-0x00000c7f */
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#define PRID_VR4181A_REV1_0 0x00000c73
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#define PRID_VR4181A_REV1_1 0x00000c74
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/* VR4131 0x00000c80-0x00000c83 */
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#define PRID_VR4131_REV1_2 0x00000c80
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#define PRID_VR4131_REV2_0 0x00000c81
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#define PRID_VR4131_REV2_1 0x00000c82
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#define PRID_VR4131_REV2_2 0x00000c83
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/* VR4133 0x00000c84- */
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#define PRID_VR4133 0x00000c84
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/*
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* Bus Control Uint
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*/
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extern unsigned long vr41xx_calculate_clock_frequency(void);
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extern unsigned long vr41xx_get_vtclock_frequency(void);
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extern unsigned long vr41xx_get_tclock_frequency(void);
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/*
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* Clock Mask Unit
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*/
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typedef enum {
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PIU_CLOCK,
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SIU_CLOCK,
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AIU_CLOCK,
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KIU_CLOCK,
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FIR_CLOCK,
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DSIU_CLOCK,
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CSI_CLOCK,
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PCIU_CLOCK,
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HSP_CLOCK,
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PCI_CLOCK,
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CEU_CLOCK,
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ETHER0_CLOCK,
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ETHER1_CLOCK
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} vr41xx_clock_t;
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extern void vr41xx_supply_clock(vr41xx_clock_t clock);
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extern void vr41xx_mask_clock(vr41xx_clock_t clock);
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/*
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* Interrupt Control Unit
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*/
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extern int vr41xx_set_intassign(unsigned int irq, unsigned char intassign);
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extern int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int));
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#define PIUINT_COMMAND 0x0040
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#define PIUINT_DATA 0x0020
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#define PIUINT_PAGE1 0x0010
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#define PIUINT_PAGE0 0x0008
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#define PIUINT_DATALOST 0x0004
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#define PIUINT_STATUSCHANGE 0x0001
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extern void vr41xx_enable_piuint(uint16_t mask);
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extern void vr41xx_disable_piuint(uint16_t mask);
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#define AIUINT_INPUT_DMAEND 0x0800
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#define AIUINT_INPUT_DMAHALT 0x0400
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#define AIUINT_INPUT_DATALOST 0x0200
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#define AIUINT_INPUT_DATA 0x0100
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#define AIUINT_OUTPUT_DMAEND 0x0008
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#define AIUINT_OUTPUT_DMAHALT 0x0004
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#define AIUINT_OUTPUT_NODATA 0x0002
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extern void vr41xx_enable_aiuint(uint16_t mask);
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extern void vr41xx_disable_aiuint(uint16_t mask);
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#define KIUINT_DATALOST 0x0004
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#define KIUINT_DATAREADY 0x0002
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#define KIUINT_SCAN 0x0001
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extern void vr41xx_enable_kiuint(uint16_t mask);
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extern void vr41xx_disable_kiuint(uint16_t mask);
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#define DSIUINT_CTS 0x0800
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#define DSIUINT_RXERR 0x0400
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#define DSIUINT_RX 0x0200
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#define DSIUINT_TX 0x0100
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#define DSIUINT_ALL 0x0f00
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extern void vr41xx_enable_dsiuint(uint16_t mask);
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extern void vr41xx_disable_dsiuint(uint16_t mask);
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#define FIRINT_UNIT 0x0010
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#define FIRINT_RX_DMAEND 0x0008
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#define FIRINT_RX_DMAHALT 0x0004
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#define FIRINT_TX_DMAEND 0x0002
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#define FIRINT_TX_DMAHALT 0x0001
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extern void vr41xx_enable_firint(uint16_t mask);
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extern void vr41xx_disable_firint(uint16_t mask);
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extern void vr41xx_enable_pciint(void);
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extern void vr41xx_disable_pciint(void);
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extern void vr41xx_enable_scuint(void);
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extern void vr41xx_disable_scuint(void);
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#define CSIINT_TX_DMAEND 0x0040
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#define CSIINT_TX_DMAHALT 0x0020
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#define CSIINT_TX_DATA 0x0010
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#define CSIINT_TX_FIFOEMPTY 0x0008
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#define CSIINT_RX_DMAEND 0x0004
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#define CSIINT_RX_DMAHALT 0x0002
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#define CSIINT_RX_FIFOEMPTY 0x0001
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extern void vr41xx_enable_csiint(uint16_t mask);
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extern void vr41xx_disable_csiint(uint16_t mask);
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extern void vr41xx_enable_bcuint(void);
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extern void vr41xx_disable_bcuint(void);
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#ifdef CONFIG_SERIAL_VR41XX_CONSOLE
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extern void vr41xx_siu_setup(void);
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#else
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static inline void vr41xx_siu_setup(void) {}
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#endif
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#endif /* __NEC_VR41XX_H */
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