arch/sh/boards/renesas/sh7710voipgw/setup.c

   1 /*
   2  * Renesas Technology SH7710 VoIP Gateway
   3  *
   4  * Copyright (C) 2006  Ranjit Deshpande
   5  * Kenati Technologies Inc.
   6  *
   7  * May be copied or modified under the terms of the GNU General Public
   8  * License.  See linux/COPYING for more information.
   9  */
  10 #include <linux/init.h>
  11 #include <asm/machvec.h>
  12 #include <asm/irq.h>
  13 #include <asm/io.h>
  14 #include <asm/irq.h>
  15
  16 static struct ipr_data sh7710voipgw_ipr_map[] = {
  17         { TIMER2_IRQ, TIMER2_IPR_ADDR, TIMER2_IPR_POS, TIMER2_PRIORITY },
  18         { WDT_IRQ, WDT_IPR_ADDR, WDT_IPR_POS, WDT_PRIORITY },
  19
  20         /* SCIF0 */
  21         { SCIF0_ERI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },
  22         { SCIF0_RXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },
  23         { SCIF0_BRI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },
  24         { SCIF0_TXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },
  25
  26         /* DMAC-1 */
  27         { DMTE0_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
  28         { DMTE1_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
  29         { DMTE2_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
  30         { DMTE3_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
  31
  32         /* DMAC-2 */
  33         { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY },
  34         { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY },
  35
  36         /* IPSEC */
  37         { IPSEC_IRQ, IPSEC_IPR_ADDR, IPSEC_IPR_POS, IPSEC_PRIORITY },
  38
  39         /* EDMAC */
  40         { EDMAC0_IRQ, EDMAC0_IPR_ADDR, EDMAC0_IPR_POS, EDMAC0_PRIORITY },
  41         { EDMAC1_IRQ, EDMAC1_IPR_ADDR, EDMAC1_IPR_POS, EDMAC1_PRIORITY },
  42         { EDMAC2_IRQ, EDMAC2_IPR_ADDR, EDMAC2_IPR_POS, EDMAC2_PRIORITY },
  43
  44         /* SIOF0 */
  45         { SIOF0_ERI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
  46         { SIOF0_TXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
  47         { SIOF0_RXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
  48         { SIOF0_CCI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
  49
  50         /* SIOF1 */
  51         { SIOF1_ERI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },
  52         { SIOF1_TXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },
  53         { SIOF1_RXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },
  54         { SIOF1_CCI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },
  55
  56         /* SLIC IRQ's */
  57         { IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY },
  58         { IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY },
  59 };
  60
  61 /*
  62  * Initialize IRQ setting
  63  */
  64 static void __init sh7710voipgw_init_irq(void)
  65 {
  66         /* Disable all interrupts in IPR registers */
  67         ctrl_outw(0x0, INTC_IPRA);
  68         ctrl_outw(0x0, INTC_IPRB);
  69         ctrl_outw(0x0, INTC_IPRC);
  70         ctrl_outw(0x0, INTC_IPRD);
  71         ctrl_outw(0x0, INTC_IPRE);
  72         ctrl_outw(0x0, INTC_IPRF);
  73         ctrl_outw(0x0, INTC_IPRG);
  74         ctrl_outw(0x0, INTC_IPRH);
  75         ctrl_outw(0x0, INTC_IPRI);
  76
  77         /* Ack all interrupt sources in the IRR0 register */
  78         ctrl_outb(0x3f, INTC_IRR0);
  79
  80         /* Use IRQ0 - IRQ3 as active low interrupt lines i.e. disable
  81          * IRL mode.
  82          */
  83         ctrl_outw(0x2aa, INTC_ICR1);
  84
  85         make_ipr_irq(sh7710voipgw_ipr_map, ARRAY_SIZE(sh7710voipgw_ipr_map));
  86 }
  87
  88 /*
  89  * The Machine Vector
  90  */
  91 struct sh_machine_vector mv_sh7710voipgw __initmv = {
  92         .mv_name                = "SH7710 VoIP Gateway",
  93         .mv_nr_irqs             = 104,
  94         .mv_init_irq            = sh7710voipgw_init_irq,
  95 };
  96 ALIAS_MV(sh7710voipgw)