err.no Git - linux-2.6/blob - arch/sh/boards/shmin/setup.c

   1 /*
   2  * arch/sh/boards/shmin/setup.c
   3  *
   4  * Copyright (C) 2006 Takashi YOSHII
   5  *
   6  * SHMIN Support.
   7  */
   8 #include <linux/init.h>
   9 #include <linux/irq.h>
  10 #include <asm/machvec.h>
  11 #include <asm/shmin.h>
  12 #include <asm/clock.h>
  13 #include <asm/io.h>
  14
  15 #define PFC_PHCR        0xa400010eUL
  16 #define INTC_ICR1       0xa4000010UL
  17 #define INTC_IPRC       0xa4000016UL
  18
  19 static struct ipr_data ipr_irq_table[] = {
  20         { 32, 0, 0, 0 },
  21         { 33, 0, 4, 0 },
  22         { 34, 0, 8, 8 },
  23         { 35, 0, 12, 0 },
  24 };
  25
  26 static unsigned long ipr_offsets[] = {
  27         INTC_IPRC,
  28 };
  29
  30 static struct ipr_desc ipr_irq_desc = {
  31         .ipr_offsets    = ipr_offsets,
  32         .nr_offsets     = ARRAY_SIZE(ipr_offsets),
  33
  34         .ipr_data       = ipr_irq_table,
  35         .nr_irqs        = ARRAY_SIZE(ipr_irq_table),
  36
  37         .chip = {
  38                 .name   = "IPR-shmin",
  39         },
  40 };
  41
  42 static void __init init_shmin_irq(void)
  43 {
  44         ctrl_outw(0x2a00, PFC_PHCR);    // IRQ0-3=IRQ
  45         ctrl_outw(0x0aaa, INTC_ICR1);   // IRQ0-3=IRQ-mode,Low-active.
  46         register_ipr_controller(&ipr_irq_desc);
  47 }
  48
  49 static void __iomem *shmin_ioport_map(unsigned long port, unsigned int size)
  50 {
  51         static int dummy;
  52
  53         if ((port & ~0x1f) == SHMIN_NE_BASE)
  54                 return (void __iomem *)(SHMIN_IO_BASE + port);
  55
  56         dummy = 0;
  57
  58         return &dummy;
  59
  60 }
  61
  62 static struct sh_machine_vector mv_shmin __initmv = {
  63         .mv_name        = "SHMIN",
  64         .mv_init_irq    = init_shmin_irq,
  65         .mv_ioport_map  = shmin_ioport_map,
  66 };