release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/include/asm/vr41xx/vr41xx.h

   1 /*
   2  * include/asm-mips/vr41xx/vr41xx.h
   3  *
   4  * Include file for NEC VR4100 series.
   5  *
   6  * Copyright (C) 1999 Michael Klar
   7  * Copyright (C) 2001, 2002 Paul Mundt
   8  * Copyright (C) 2002 MontaVista Software, Inc.
   9  * Copyright (C) 2002 TimeSys Corp.
  10  * Copyright (C) 2003-2008 Yoichi Yuasa <yuasa@linux-mips.org>
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the
  14  * Free Software Foundation; either version 2 of the License, or (at your
  15  * option) any later version.
  16  */
  17 #ifndef __NEC_VR41XX_H
  18 #define __NEC_VR41XX_H
  19
  20 #include <linux/interrupt.h>
  21
  22 /*
  23  * CPU Revision
  24  */
  25 /* VR4122 0x00000c70-0x00000c72 */
  26 #define PRID_VR4122_REV1_0      0x00000c70
  27 #define PRID_VR4122_REV2_0      0x00000c70
  28 #define PRID_VR4122_REV2_1      0x00000c70
  29 #define PRID_VR4122_REV3_0      0x00000c71
  30 #define PRID_VR4122_REV3_1      0x00000c72
  31
  32 /* VR4181A 0x00000c73-0x00000c7f */
  33 #define PRID_VR4181A_REV1_0     0x00000c73
  34 #define PRID_VR4181A_REV1_1     0x00000c74
  35
  36 /* VR4131 0x00000c80-0x00000c83 */
  37 #define PRID_VR4131_REV1_2      0x00000c80
  38 #define PRID_VR4131_REV2_0      0x00000c81
  39 #define PRID_VR4131_REV2_1      0x00000c82
  40 #define PRID_VR4131_REV2_2      0x00000c83
  41
  42 /* VR4133 0x00000c84- */
  43 #define PRID_VR4133             0x00000c84
  44
  45 /*
  46  * Bus Control Uint
  47  */
  48 extern unsigned long vr41xx_calculate_clock_frequency(void);
  49 extern unsigned long vr41xx_get_vtclock_frequency(void);
  50 extern unsigned long vr41xx_get_tclock_frequency(void);
  51
  52 /*
  53  * Clock Mask Unit
  54  */
  55 typedef enum {
  56         PIU_CLOCK,
  57         SIU_CLOCK,
  58         AIU_CLOCK,
  59         KIU_CLOCK,
  60         FIR_CLOCK,
  61         DSIU_CLOCK,
  62         CSI_CLOCK,
  63         PCIU_CLOCK,
  64         HSP_CLOCK,
  65         PCI_CLOCK,
  66         CEU_CLOCK,
  67         ETHER0_CLOCK,
  68         ETHER1_CLOCK
  69 } vr41xx_clock_t;
  70
  71 extern void vr41xx_supply_clock(vr41xx_clock_t clock);
  72 extern void vr41xx_mask_clock(vr41xx_clock_t clock);
  73
  74 /*
  75  * Interrupt Control Unit
  76  */
  77 extern int vr41xx_set_intassign(unsigned int irq, unsigned char intassign);
  78 extern int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int));
  79
  80 #define PIUINT_COMMAND          0x0040
  81 #define PIUINT_DATA             0x0020
  82 #define PIUINT_PAGE1            0x0010
  83 #define PIUINT_PAGE0            0x0008
  84 #define PIUINT_DATALOST         0x0004
  85 #define PIUINT_STATUSCHANGE     0x0001
  86
  87 extern void vr41xx_enable_piuint(uint16_t mask);
  88 extern void vr41xx_disable_piuint(uint16_t mask);
  89
  90 #define AIUINT_INPUT_DMAEND     0x0800
  91 #define AIUINT_INPUT_DMAHALT    0x0400
  92 #define AIUINT_INPUT_DATALOST   0x0200
  93 #define AIUINT_INPUT_DATA       0x0100
  94 #define AIUINT_OUTPUT_DMAEND    0x0008
  95 #define AIUINT_OUTPUT_DMAHALT   0x0004
  96 #define AIUINT_OUTPUT_NODATA    0x0002
  97
  98 extern void vr41xx_enable_aiuint(uint16_t mask);
  99 extern void vr41xx_disable_aiuint(uint16_t mask);
 100
 101 #define KIUINT_DATALOST         0x0004
 102 #define KIUINT_DATAREADY        0x0002
 103 #define KIUINT_SCAN             0x0001
 104
 105 extern void vr41xx_enable_kiuint(uint16_t mask);
 106 extern void vr41xx_disable_kiuint(uint16_t mask);
 107
 108 #define DSIUINT_CTS             0x0800
 109 #define DSIUINT_RXERR           0x0400
 110 #define DSIUINT_RX              0x0200
 111 #define DSIUINT_TX              0x0100
 112 #define DSIUINT_ALL             0x0f00
 113
 114 extern void vr41xx_enable_dsiuint(uint16_t mask);
 115 extern void vr41xx_disable_dsiuint(uint16_t mask);
 116
 117 #define FIRINT_UNIT             0x0010
 118 #define FIRINT_RX_DMAEND        0x0008
 119 #define FIRINT_RX_DMAHALT       0x0004
 120 #define FIRINT_TX_DMAEND        0x0002
 121 #define FIRINT_TX_DMAHALT       0x0001
 122
 123 extern void vr41xx_enable_firint(uint16_t mask);
 124 extern void vr41xx_disable_firint(uint16_t mask);
 125
 126 extern void vr41xx_enable_pciint(void);
 127 extern void vr41xx_disable_pciint(void);
 128
 129 extern void vr41xx_enable_scuint(void);
 130 extern void vr41xx_disable_scuint(void);
 131
 132 #define CSIINT_TX_DMAEND        0x0040
 133 #define CSIINT_TX_DMAHALT       0x0020
 134 #define CSIINT_TX_DATA          0x0010
 135 #define CSIINT_TX_FIFOEMPTY     0x0008
 136 #define CSIINT_RX_DMAEND        0x0004
 137 #define CSIINT_RX_DMAHALT       0x0002
 138 #define CSIINT_RX_FIFOEMPTY     0x0001
 139
 140 extern void vr41xx_enable_csiint(uint16_t mask);
 141 extern void vr41xx_disable_csiint(uint16_t mask);
 142
 143 extern void vr41xx_enable_bcuint(void);
 144 extern void vr41xx_disable_bcuint(void);
 145
 146 #ifdef CONFIG_SERIAL_VR41XX_CONSOLE
 147 extern void vr41xx_siu_setup(void);
 148 #else
 149 static inline void vr41xx_siu_setup(void) {}
 150 #endif
 151
 152 #endif /* __NEC_VR41XX_H */