root/arch/arm/mach-footbridge/include/mach/entry-macro.S

   1 /*
   2  * arch/arm/mach-footbridge/include/mach/entry-macro.S
   3  *
   4  * Low-level IRQ helper macros for footbridge-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 #include <mach/hardware.h>
  11 #include <mach/irqs.h>
  12 #include <asm/hardware/dec21285.h>
  13 
  14                 .equ    dc21285_high, ARMCSR_BASE & 0xff000000
  15                 .equ    dc21285_low, ARMCSR_BASE & 0x00ffffff
  16 
  17                 .macro  get_irqnr_preamble, base, tmp
  18                 mov     \base, #dc21285_high
  19                 .if     dc21285_low
  20                 orr     \base, \base, #dc21285_low
  21                 .endif
  22                 .endm
  23 
  24                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  25                 ldr     \irqstat, [\base, #0x180]       @ get interrupts
  26 
  27                 mov     \irqnr, #IRQ_SDRAMPARITY
  28                 tst     \irqstat, #IRQ_MASK_SDRAMPARITY
  29                 bne     1001f
  30 
  31                 tst     \irqstat, #IRQ_MASK_UART_RX
  32                 movne   \irqnr, #IRQ_CONRX
  33                 bne     1001f
  34 
  35                 tst     \irqstat, #IRQ_MASK_DMA1
  36                 movne   \irqnr, #IRQ_DMA1
  37                 bne     1001f
  38 
  39                 tst     \irqstat, #IRQ_MASK_DMA2
  40                 movne   \irqnr, #IRQ_DMA2
  41                 bne     1001f
  42 
  43                 tst     \irqstat, #IRQ_MASK_IN0
  44                 movne   \irqnr, #IRQ_IN0
  45                 bne     1001f
  46 
  47                 tst     \irqstat, #IRQ_MASK_IN1
  48                 movne   \irqnr, #IRQ_IN1
  49                 bne     1001f
  50 
  51                 tst     \irqstat, #IRQ_MASK_IN2
  52                 movne   \irqnr, #IRQ_IN2
  53                 bne     1001f
  54 
  55                 tst     \irqstat, #IRQ_MASK_IN3
  56                 movne   \irqnr, #IRQ_IN3
  57                 bne     1001f
  58 
  59                 tst     \irqstat, #IRQ_MASK_PCI
  60                 movne   \irqnr, #IRQ_PCI
  61                 bne     1001f
  62 
  63                 tst     \irqstat, #IRQ_MASK_DOORBELLHOST
  64                 movne   \irqnr, #IRQ_DOORBELLHOST
  65                 bne     1001f
  66 
  67                 tst     \irqstat, #IRQ_MASK_I2OINPOST
  68                 movne   \irqnr, #IRQ_I2OINPOST
  69                 bne     1001f
  70 
  71                 tst     \irqstat, #IRQ_MASK_TIMER1
  72                 movne   \irqnr, #IRQ_TIMER1
  73                 bne     1001f
  74 
  75                 tst     \irqstat, #IRQ_MASK_TIMER2
  76                 movne   \irqnr, #IRQ_TIMER2
  77                 bne     1001f
  78 
  79                 tst     \irqstat, #IRQ_MASK_TIMER3
  80                 movne   \irqnr, #IRQ_TIMER3
  81                 bne     1001f
  82 
  83                 tst     \irqstat, #IRQ_MASK_UART_TX
  84                 movne   \irqnr, #IRQ_CONTX
  85                 bne     1001f
  86 
  87                 tst     \irqstat, #IRQ_MASK_PCI_ABORT
  88                 movne   \irqnr, #IRQ_PCI_ABORT
  89                 bne     1001f
  90 
  91                 tst     \irqstat, #IRQ_MASK_PCI_SERR
  92                 movne   \irqnr, #IRQ_PCI_SERR
  93                 bne     1001f
  94 
  95                 tst     \irqstat, #IRQ_MASK_DISCARD_TIMER
  96                 movne   \irqnr, #IRQ_DISCARD_TIMER
  97                 bne     1001f
  98 
  99                 tst     \irqstat, #IRQ_MASK_PCI_DPERR
 100                 movne   \irqnr, #IRQ_PCI_DPERR
 101                 bne     1001f
 102 
 103                 tst     \irqstat, #IRQ_MASK_PCI_PERR
 104                 movne   \irqnr, #IRQ_PCI_PERR
 105 1001:
 106                 .endm
 107