LXR linux/arch/sh/boards/mach-sdk7780/irq.c

   1/*
   2 * linux/arch/sh/boards/renesas/sdk7780/irq.c
   3 *
   4 * Renesas Technology Europe SDK7780 Support.
   5 *
   6 * Copyright (C) 2008  Nicholas Beck <nbeck@mpc-data.co.uk>
   7 *
   8 * This file is subject to the terms and conditions of the GNU General Public
   9 * License.  See the file "COPYING" in the main directory of this archive
  10 * for more details.
  11 */
  12#include <linux/init.h>
  13#include <linux/irq.h>
  14#include <linux/io.h>
  15#include <mach/sdk7780.h>
  16
  17enum {
  18        UNUSED = 0,
  19        /* board specific interrupt sources */
  20        SMC91C111,      /* Ethernet controller */
  21};
  22
  23static struct intc_vect fpga_vectors[] __initdata = {
  24        INTC_IRQ(SMC91C111, IRQ_ETHERNET),
  25};
  26
  27static struct intc_mask_reg fpga_mask_registers[] __initdata = {
  28        { 0, FPGA_IRQ0MR, 16,
  29          { 0, 0, 0, 0, 0, 0, 0, 0,
  30            0, 0, 0, SMC91C111, 0, 0, 0, 0 } },
  31};
  32
  33static DECLARE_INTC_DESC(fpga_intc_desc, "sdk7780-irq", fpga_vectors,
  34                         NULL, fpga_mask_registers, NULL, NULL);
  35
  36void __init init_sdk7780_IRQ(void)
  37{
  38        printk(KERN_INFO "Using SDK7780 interrupt controller.\n");
  39
  40        __raw_writew(0xFFFF, FPGA_IRQ0MR);
  41        /* Setup IRL 0-3 */
  42        __raw_writew(0x0003, FPGA_IMSR);
  43        plat_irq_setup_pins(IRQ_MODE_IRL3210);
  44
  45        register_intc_controller(&fpga_intc_desc);
  46}
  47