arch/sh/include/cpu-sh5/cpu/irq.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SH_CPU_SH5_IRQ_H
   3 #define __ASM_SH_CPU_SH5_IRQ_H
   4
   5 /*
   6  * include/asm-sh/cpu-sh5/irq.h
   7  *
   8  * Copyright (C) 2000, 2001  Paolo Alberelli
   9  */
  10
  11
  12 /*
  13  * Encoded IRQs are not considered worth to be supported.
  14  * Main reason is that there's no per-encoded-interrupt
  15  * enable/disable mechanism (as there was in SH3/4).
  16  * An all enabled/all disabled is worth only if there's
  17  * a cascaded IC to disable/enable/ack on. Until such
  18  * IC is available there's no such support.
  19  *
  20  * Presumably Encoded IRQs may use extra IRQs beyond 64,
  21  * below. Some logic must be added to cope with IRQ_IRL?
  22  * in an exclusive way.
  23  *
  24  * Priorities are set at Platform level, when IRQ_IRL0-3
  25  * are set to 0 Encoding is allowed. Otherwise it's not
  26  * allowed.
  27  */
  28
  29 /* Independent IRQs */
  30 #define IRQ_IRL0        0
  31 #define IRQ_IRL1        1
  32 #define IRQ_IRL2        2
  33 #define IRQ_IRL3        3
  34
  35 #define IRQ_INTA        4
  36 #define IRQ_INTB        5
  37 #define IRQ_INTC        6
  38 #define IRQ_INTD        7
  39
  40 #define IRQ_SERR        12
  41 #define IRQ_ERR         13
  42 #define IRQ_PWR3        14
  43 #define IRQ_PWR2        15
  44 #define IRQ_PWR1        16
  45 #define IRQ_PWR0        17
  46
  47 #define IRQ_DMTE0       18
  48 #define IRQ_DMTE1       19
  49 #define IRQ_DMTE2       20
  50 #define IRQ_DMTE3       21
  51 #define IRQ_DAERR       22
  52
  53 #define IRQ_TUNI0       32
  54 #define IRQ_TUNI1       33
  55 #define IRQ_TUNI2       34
  56 #define IRQ_TICPI2      35
  57
  58 #define IRQ_ATI         36
  59 #define IRQ_PRI         37
  60 #define IRQ_CUI         38
  61
  62 #define IRQ_ERI         39
  63 #define IRQ_RXI         40
  64 #define IRQ_BRI         41
  65 #define IRQ_TXI         42
  66
  67 #define IRQ_ITI         63
  68
  69 #define NR_INTC_IRQS    64
  70
  71 #ifdef CONFIG_SH_CAYMAN
  72 #define NR_EXT_IRQS     32
  73 #define START_EXT_IRQS  64
  74
  75 /* PCI bus 2 uses encoded external interrupts on the Cayman board */
  76 #define IRQ_P2INTA      (START_EXT_IRQS + (3*8) + 0)
  77 #define IRQ_P2INTB      (START_EXT_IRQS + (3*8) + 1)
  78 #define IRQ_P2INTC      (START_EXT_IRQS + (3*8) + 2)
  79 #define IRQ_P2INTD      (START_EXT_IRQS + (3*8) + 3)
  80
  81 #define I8042_KBD_IRQ   (START_EXT_IRQS + 2)
  82 #define I8042_AUX_IRQ   (START_EXT_IRQS + 6)
  83
  84 #define IRQ_CFCARD      (START_EXT_IRQS + 7)
  85 #define IRQ_PCMCIA      (0)
  86
  87 #else
  88 #define NR_EXT_IRQS     0
  89 #endif
  90
  91 /* Default IRQs, fixed */
  92 #define TIMER_IRQ       IRQ_TUNI0
  93 #define RTC_IRQ         IRQ_CUI
  94
  95 /* Default Priorities, Platform may choose differently */
  96 #define NO_PRIORITY     0       /* Disabled */
  97 #define TIMER_PRIORITY  2
  98 #define RTC_PRIORITY    TIMER_PRIORITY
  99 #define SCIF_PRIORITY   3
 100 #define INTD_PRIORITY   3
 101 #define IRL3_PRIORITY   4
 102 #define INTC_PRIORITY   6
 103 #define IRL2_PRIORITY   7
 104 #define INTB_PRIORITY   9
 105 #define IRL1_PRIORITY   10
 106 #define INTA_PRIORITY   12
 107 #define IRL0_PRIORITY   13
 108 #define TOP_PRIORITY    15
 109
 110 extern int intc_evt_to_irq[(0xE20/0x20)+1];
 111 extern int platform_int_priority[NR_INTC_IRQS];
 112
 113 #endif /* __ASM_SH_CPU_SH5_IRQ_H */