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   1 /*
   2  * arch/arm/include/asm/hardware/entry-macro-iomd.S
   3  *
   4  * Low-level IRQ helper macros for IOC/IOMD based platforms
   5  *
   6  * This file is licensed under  the terms of the GNU General Public
   7  * License version 2. This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 /* IOC / IOMD based hardware */
  12 #include <asm/hardware/iomd.h>
  13
  14                 .macro  disable_fiq
  15                 mov     r12, #ioc_base_high
  16                 .if     ioc_base_low
  17                 orr     r12, r12, #ioc_base_low
  18                 .endif
  19                 strb    r12, [r12, #0x38]       @ Disable FIQ register
  20                 .endm
  21
  22                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  23                 ldrb    \irqstat, [\base, #IOMD_IRQREQB]        @ get high priority first
  24                 ldr     \tmp, =irq_prio_h
  25                 teq     \irqstat, #0
  26 #ifdef IOMD_BASE
  27                 ldreqb  \irqstat, [\base, #IOMD_DMAREQ] @ get dma
  28                 addeq   \tmp, \tmp, #256                @ irq_prio_h table size
  29                 teqeq   \irqstat, #0
  30                 bne     2406f
  31 #endif
  32                 ldreqb  \irqstat, [\base, #IOMD_IRQREQA]        @ get low priority
  33                 addeq   \tmp, \tmp, #256                @ irq_prio_d table size
  34                 teqeq   \irqstat, #0
  35 #ifdef IOMD_IRQREQC
  36                 ldreqb  \irqstat, [\base, #IOMD_IRQREQC]
  37                 addeq   \tmp, \tmp, #256                @ irq_prio_l table size
  38                 teqeq   \irqstat, #0
  39 #endif
  40 #ifdef IOMD_IRQREQD
  41                 ldreqb  \irqstat, [\base, #IOMD_IRQREQD]
  42                 addeq   \tmp, \tmp, #256                @ irq_prio_lc table size
  43                 teqeq   \irqstat, #0
  44 #endif
  45 2406:           ldrneb  \irqnr, [\tmp, \irqstat]        @ get IRQ number
  46                 .endm
  47
  48 /*
  49  * Interrupt table (incorporates priority).  Please note that we
  50  * rely on the order of these tables (see above code).
  51  */
  52                 .align  5
  53 irq_prio_h:     .byte    0, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
  54                 .byte   12, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
  55                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  56                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  57                 .byte   14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
  58                 .byte   14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
  59                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  60                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  61                 .byte   15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
  62                 .byte   15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
  63                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  64                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  65                 .byte   15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
  66                 .byte   15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
  67                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  68                 .byte   13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
  69 #ifdef IOMD_BASE
  70 irq_prio_d:     .byte    0,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  71                 .byte   20,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  72                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  73                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  74                 .byte   22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  75                 .byte   22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  76                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  77                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  78                 .byte   23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  79                 .byte   23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  80                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  81                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  82                 .byte   22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  83                 .byte   22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  84                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  85                 .byte   21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
  86 #endif
  87 irq_prio_l:     .byte    0, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
  88                 .byte    4, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
  89                 .byte    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
  90                 .byte    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
  91                 .byte    6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
  92                 .byte    6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
  93                 .byte    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
  94                 .byte    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
  95                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
  96                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
  97                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
  98                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
  99                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
 100                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
 101                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
 102                 .byte    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
 103 #ifdef IOMD_IRQREQC
 104 irq_prio_lc:    .byte   24,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27
 105                 .byte   28,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27
 106                 .byte   29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
 107                 .byte   29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
 108                 .byte   30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27
 109                 .byte   30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27
 110                 .byte   29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
 111                 .byte   29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
 112                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 113                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 114                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 115                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 116                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 117                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 118                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 119                 .byte   31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
 120 #endif
 121 #ifdef IOMD_IRQREQD
 122 irq_prio_ld:    .byte   40,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43
 123                 .byte   44,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43
 124                 .byte   45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
 125                 .byte   45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
 126                 .byte   46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43
 127                 .byte   46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43
 128                 .byte   45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
 129                 .byte   45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
 130                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 131                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 132                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 133                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 134                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 135                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 136                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 137                 .byte   47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
 138 #endif
 139