setup.c

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/*
 *  linux/arch/m32r/platforms/mappi2/setup.c
 *
 *  Setup routines for Renesas MAPPI-II(M3A-ZA36) Board
 *
 *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
 *                           Hitoshi Yamamoto, Mamoru Sakugawa
 */

#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>

#include <asm/m32r.h>
#include <asm/io.h>

#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))

icu_data_t icu_data[NR_IRQS];

static void disable_mappi2_irq(unsigned int irq)
{
    unsigned long port, data;

    if ((irq == 0) ||(irq >= NR_IRQS))  {
        printk("bad irq 0x%08x\n", irq);
        return;
    }
    port = irq2port(irq);
    data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
    outl(data, port);
}

static void enable_mappi2_irq(unsigned int irq)
{
    unsigned long port, data;

    if ((irq == 0) ||(irq >= NR_IRQS))  {
        printk("bad irq 0x%08x\n", irq);
        return;
    }
    port = irq2port(irq);
    data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
    outl(data, port);
}

static void mask_mappi2(struct irq_data *data)
{
    disable_mappi2_irq(data->irq);
}

static void unmask_mappi2(struct irq_data *data)
{
    enable_mappi2_irq(data->irq);
}

static void shutdown_mappi2(struct irq_data *data)
{
    unsigned long port;

    port = irq2port(data->irq);
    outl(M32R_ICUCR_ILEVEL7, port);
}

static struct irq_chip mappi2_irq_type =
{
    .name       = "MAPPI2-IRQ",
    .irq_shutdown   = shutdown_mappi2,
    .irq_mask   = mask_mappi2,
    .irq_unmask = unmask_mappi2,
};

void __init init_IRQ(void)
{
#if defined(CONFIG_SMC91X)
    /* INT0 : LAN controller (SMC91111) */
    irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
    disable_mappi2_irq(M32R_IRQ_INT0);
#endif  /* CONFIG_SMC91X */

    /* MFT2 : system timer */
    irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
    disable_mappi2_irq(M32R_IRQ_MFT2);

#ifdef CONFIG_SERIAL_M32R_SIO
    /* SIO0_R : uart receive data */
    irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[M32R_IRQ_SIO0_R].icucr = 0;
    disable_mappi2_irq(M32R_IRQ_SIO0_R);

    /* SIO0_S : uart send data */
    irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[M32R_IRQ_SIO0_S].icucr = 0;
    disable_mappi2_irq(M32R_IRQ_SIO0_S);
    /* SIO1_R : uart receive data */
    irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[M32R_IRQ_SIO1_R].icucr = 0;
    disable_mappi2_irq(M32R_IRQ_SIO1_R);

    /* SIO1_S : uart send data */
    irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[M32R_IRQ_SIO1_S].icucr = 0;
    disable_mappi2_irq(M32R_IRQ_SIO1_S);
#endif  /* CONFIG_M32R_USE_DBG_CONSOLE */

#if defined(CONFIG_USB)
    /* INT1 : USB Host controller interrupt */
    irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01;
    disable_mappi2_irq(M32R_IRQ_INT1);
#endif /* CONFIG_USB */

    /* ICUCR40: CFC IREQ */
    irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
    disable_mappi2_irq(PLD_IRQ_CFIREQ);

#if defined(CONFIG_M32R_CFC)
    /* ICUCR41: CFC Insert */
    irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00;
    disable_mappi2_irq(PLD_IRQ_CFC_INSERT);

    /* ICUCR42: CFC Eject */
    irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &mappi2_irq_type,
                 handle_level_irq);
    icu_data[PLD_IRQ_CFC_EJECT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
    disable_mappi2_irq(PLD_IRQ_CFC_EJECT);
#endif /* CONFIG_MAPPI2_CFC */
}

#define LAN_IOSTART     0x300
#define LAN_IOEND       0x320
static struct resource smc91x_resources[] = {
    [0] = {
        .start  = (LAN_IOSTART),
        .end    = (LAN_IOEND),
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = M32R_IRQ_INT0,
        .end    = M32R_IRQ_INT0,
        .flags  = IORESOURCE_IRQ,
    }
};

static struct platform_device smc91x_device = {
    .name       = "smc91x",
    .id     = 0,
    .num_resources  = ARRAY_SIZE(smc91x_resources),
    .resource       = smc91x_resources,
};

static int __init platform_init(void)
{
    platform_device_register(&smc91x_device);
    return 0;
}
arch_initcall(platform_init);