arch/sh/boards/se/7300/irq.c

   1 /*
   2  * linux/arch/sh/boards/se/7300/irq.c
   3  *
   4  * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
   5  *
   6  * SH-Mobile SolutionEngine 7300 Support.
   7  *
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/irq.h>
  12 #include <asm/irq.h>
  13 #include <asm/io.h>
  14 #include <asm/se7300.h>
  15
  16 static struct ipr_data se7300_ipr_map[] = {
  17         /* PC_IRQ[0-3] -> IRQ0 (32) */
  18         { IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, 0x0f - IRQ0_IRQ },
  19         /* A_IRQ[0-3] -> IRQ1 (33) */
  20         { IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, 0x0f - IRQ1_IRQ },
  21         { SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
  22         { DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY },
  23         { DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY },
  24         { VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY },
  25 };
  26
  27 /*
  28  * Initialize IRQ setting
  29  */
  30 void __init
  31 init_7300se_IRQ(void)
  32 {
  33         ctrl_outw(0x0028, PA_EPLD_MODESET);     /* mode set IRQ0,1 active low. */
  34         ctrl_outw(0xa000, INTC_ICR1);           /* IRQ mode; IRQ0,1 enable.    */
  35         ctrl_outw(0x0000, PORT_PFCR);           /* use F for IRQ[3:0] and SIU. */
  36
  37         make_ipr_irq(se7300_ipr_map, ARRAY_SIZE(se7300_ipr_map));
  38
  39         ctrl_outw(0x2000, PA_MRSHPC + 0x0c);    /* mrshpc irq enable */
  40 }