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setup.c

/*
 * Renesas Technology SH7710 VoIP Gateway
 *
 * Copyright (C) 2006  Ranjit Deshpande
 * Kenati Technologies Inc.
 *
 * May be copied or modified under the terms of the GNU General Public
 * License.  See linux/COPYING for more information.
 */
#include <linux/init.h>
#include <asm/machvec.h>
#include <asm/irq.h>
#include <asm/io.h>

static struct ipr_data sh7710voipgw_ipr_map[] = {
      { TIMER2_IRQ, TIMER2_IPR_ADDR, TIMER2_IPR_POS, TIMER2_PRIORITY },
      { WDT_IRQ, WDT_IPR_ADDR, WDT_IPR_POS, WDT_PRIORITY },

      /* SCIF0 */
      { SCIF0_ERI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },
      { SCIF0_RXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },
      { SCIF0_BRI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },
      { SCIF0_TXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, SCIF0_PRIORITY },

      /* DMAC-1 */
      { DMTE0_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
      { DMTE1_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
      { DMTE2_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
      { DMTE3_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },

      /* DMAC-2 */
      { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY },
      { DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY },

      /* IPSEC */
      { IPSEC_IRQ, IPSEC_IPR_ADDR, IPSEC_IPR_POS, IPSEC_PRIORITY },

      /* EDMAC */
      { EDMAC0_IRQ, EDMAC0_IPR_ADDR, EDMAC0_IPR_POS, EDMAC0_PRIORITY },
      { EDMAC1_IRQ, EDMAC1_IPR_ADDR, EDMAC1_IPR_POS, EDMAC1_PRIORITY },
      { EDMAC2_IRQ, EDMAC2_IPR_ADDR, EDMAC2_IPR_POS, EDMAC2_PRIORITY },

      /* SIOF0 */
      { SIOF0_ERI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
      { SIOF0_TXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
      { SIOF0_RXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },
      { SIOF0_CCI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY },

      /* SIOF1 */
      { SIOF1_ERI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },
      { SIOF1_TXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },
      { SIOF1_RXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },
      { SIOF1_CCI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, SIOF1_PRIORITY },

      /* SLIC IRQ's */
      { IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY },
      { IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY },
};

/*
 * Initialize IRQ setting
 */
static void __init sh7710voipgw_init_irq(void)
{
      /* Disable all interrupts in IPR registers */
      ctrl_outw(0x0, INTC_IPRA);
      ctrl_outw(0x0, INTC_IPRB);
      ctrl_outw(0x0, INTC_IPRC);
      ctrl_outw(0x0, INTC_IPRD);
      ctrl_outw(0x0, INTC_IPRE);
      ctrl_outw(0x0, INTC_IPRF);
      ctrl_outw(0x0, INTC_IPRG);
      ctrl_outw(0x0, INTC_IPRH);
      ctrl_outw(0x0, INTC_IPRI);

      /* Ack all interrupt sources in the IRR0 register */
      ctrl_outb(0x3f, INTC_IRR0);

      /* Use IRQ0 - IRQ3 as active low interrupt lines i.e. disable
       * IRL mode.
       */
      ctrl_outw(0x2aa, INTC_ICR1);

      make_ipr_irq(sh7710voipgw_ipr_map, ARRAY_SIZE(sh7710voipgw_ipr_map));
}

/*
 * The Machine Vector
 */
static struct sh_machine_vector mv_sh7710voipgw __initmv = {
      .mv_name          = "SH7710 VoIP Gateway",
      .mv_nr_irqs       = 104,
      .mv_init_irq            = sh7710voipgw_init_irq,
};

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