release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/sysdev/qe_lib/qe_ic.h

   1 /*
   2  * arch/powerpc/sysdev/qe_lib/qe_ic.h
   3  *
   4  * QUICC ENGINE Interrupt Controller Header
   5  *
   6  * Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved.
   7  *
   8  * Author: Li Yang <leoli@freescale.com>
   9  * Based on code from Shlomi Gridish <gridish@freescale.com>
  10  *
  11  * This program is free software; you can redistribute  it and/or modify it
  12  * under  the terms of  the GNU General  Public License as published by the
  13  * Free Software Foundation;  either version 2 of the  License, or (at your
  14  * option) any later version.
  15  */
  16 #ifndef _POWERPC_SYSDEV_QE_IC_H
  17 #define _POWERPC_SYSDEV_QE_IC_H
  18
  19 #include <asm/qe_ic.h>
  20
  21 #define NR_QE_IC_INTS           64
  22
  23 /* QE IC registers offset */
  24 #define QEIC_CICR               0x00
  25 #define QEIC_CIVEC              0x04
  26 #define QEIC_CRIPNR             0x08
  27 #define QEIC_CIPNR              0x0c
  28 #define QEIC_CIPXCC             0x10
  29 #define QEIC_CIPYCC             0x14
  30 #define QEIC_CIPWCC             0x18
  31 #define QEIC_CIPZCC             0x1c
  32 #define QEIC_CIMR               0x20
  33 #define QEIC_CRIMR              0x24
  34 #define QEIC_CICNR              0x28
  35 #define QEIC_CIPRTA             0x30
  36 #define QEIC_CIPRTB             0x34
  37 #define QEIC_CRICR              0x3c
  38 #define QEIC_CHIVEC             0x60
  39
  40 /* Interrupt priority registers */
  41 #define CIPCC_SHIFT_PRI0        29
  42 #define CIPCC_SHIFT_PRI1        26
  43 #define CIPCC_SHIFT_PRI2        23
  44 #define CIPCC_SHIFT_PRI3        20
  45 #define CIPCC_SHIFT_PRI4        13
  46 #define CIPCC_SHIFT_PRI5        10
  47 #define CIPCC_SHIFT_PRI6        7
  48 #define CIPCC_SHIFT_PRI7        4
  49
  50 /* CICR priority modes */
  51 #define CICR_GWCC               0x00040000
  52 #define CICR_GXCC               0x00020000
  53 #define CICR_GYCC               0x00010000
  54 #define CICR_GZCC               0x00080000
  55 #define CICR_GRTA               0x00200000
  56 #define CICR_GRTB               0x00400000
  57 #define CICR_HPIT_SHIFT         8
  58 #define CICR_HPIT_MASK          0x00000300
  59 #define CICR_HP_SHIFT           24
  60 #define CICR_HP_MASK            0x3f000000
  61
  62 /* CICNR */
  63 #define CICNR_WCC1T_SHIFT       20
  64 #define CICNR_ZCC1T_SHIFT       28
  65 #define CICNR_YCC1T_SHIFT       12
  66 #define CICNR_XCC1T_SHIFT       4
  67
  68 /* CRICR */
  69 #define CRICR_RTA1T_SHIFT       20
  70 #define CRICR_RTB1T_SHIFT       28
  71
  72 /* Signal indicator */
  73 #define SIGNAL_MASK             3
  74 #define SIGNAL_HIGH             2
  75 #define SIGNAL_LOW              0
  76
  77 struct qe_ic {
  78         /* Control registers offset */
  79         volatile u32 __iomem *regs;
  80
  81         /* The remapper for this QEIC */
  82         struct irq_host *irqhost;
  83
  84         /* The "linux" controller struct */
  85         struct irq_chip hc_irq;
  86
  87         /* VIRQ numbers of QE high/low irqs */
  88         unsigned int virq_high;
  89         unsigned int virq_low;
  90 };
  91
  92 /*
  93  * QE interrupt controller internal structure
  94  */
  95 struct qe_ic_info {
  96         u32     mask;     /* location of this source at the QIMR register. */
  97         u32     mask_reg; /* Mask register offset */
  98         u8      pri_code; /* for grouped interrupts sources - the interrupt
  99                              code as appears at the group priority register */
 100         u32     pri_reg;  /* Group priority register offset */
 101 };
 102
 103 #endif /* _POWERPC_SYSDEV_QE_IC_H */