irq.c

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/*
 * linux/arch/sh/boards/renesas/sdk7780/irq.c
 *
 * Renesas Technology Europe SDK7780 Support.
 *
 * Copyright (C) 2008  Nicholas Beck <[email protected]>
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <mach/sdk7780.h>

enum {
    UNUSED = 0,
    /* board specific interrupt sources */
    SMC91C111,  /* Ethernet controller */
};

static struct intc_vect fpga_vectors[] __initdata = {
    INTC_IRQ(SMC91C111, IRQ_ETHERNET),
};

static struct intc_mask_reg fpga_mask_registers[] __initdata = {
    { 0, FPGA_IRQ0MR, 16,
      { 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, SMC91C111, 0, 0, 0, 0 } },
};

static DECLARE_INTC_DESC(fpga_intc_desc, "sdk7780-irq", fpga_vectors,
             NULL, fpga_mask_registers, NULL, NULL);

void __init init_sdk7780_IRQ(void)
{
    printk(KERN_INFO "Using SDK7780 interrupt controller.\n");

    __raw_writew(0xFFFF, FPGA_IRQ0MR);
    /* Setup IRL 0-3 */
    __raw_writew(0x0003, FPGA_IMSR);
    plat_irq_setup_pins(IRQ_MODE_IRL3210);

    register_intc_controller(&fpga_intc_desc);
}