arch/sh/boards/mach-sh7763rdp/irq.c

   1 /*
   2  * linux/arch/sh/boards/renesas/sh7763rdp/irq.c
   3  *
   4  * Renesas Solutions SH7763RDP Support.
   5  *
   6  * Copyright (C) 2008 Renesas Solutions Corp.
   7  * Copyright (C) 2008  Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
   8  *
   9  * This file is subject to the terms and conditions of the GNU General Public
  10  * License.  See the file "COPYING" in the main directory of this archive
  11  * for more details.
  12  */
  13
  14 #include <linux/init.h>
  15 #include <linux/irq.h>
  16 #include <asm/io.h>
  17 #include <asm/irq.h>
  18 #include <mach/sh7763rdp.h>
  19
  20 #define INTC_BASE               (0xFFD00000)
  21 #define INTC_INT2PRI7   (INTC_BASE+0x4001C)
  22 #define INTC_INT2MSKCR  (INTC_BASE+0x4003C)
  23 #define INTC_INT2MSKCR1 (INTC_BASE+0x400D4)
  24
  25 /*
  26  * Initialize IRQ setting
  27  */
  28 void __init init_sh7763rdp_IRQ(void)
  29 {
  30         /* GPIO enabled */
  31         __raw_writel(1 << 25, INTC_INT2MSKCR);
  32
  33         /* enable GPIO interrupts */
  34         __raw_writel((__raw_readl(INTC_INT2PRI7) & 0xFF00FFFF) | 0x000F0000,
  35                   INTC_INT2PRI7);
  36
  37         /* USBH enabled */
  38         __raw_writel(1 << 17, INTC_INT2MSKCR1);
  39
  40         /* GETHER enabled */
  41         __raw_writel(1 << 16, INTC_INT2MSKCR1);
  42
  43         /* DMAC enabled */
  44         __raw_writel(1 << 8, INTC_INT2MSKCR);
  45 }