1/* 2 * linux/arch/sh/boards/se/7721/irq.c 3 * 4 * Copyright (C) 2008 Renesas Solutions Corp. 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10#include <linux/init.h> 11#include <linux/irq.h> 12#include <linux/interrupt.h> 13#include <linux/io.h> 14#include <mach-se/mach/se7721.h> 15 16enum { 17 UNUSED = 0, 18 19 /* board specific interrupt sources */ 20 MRSHPC, 21}; 22 23static struct intc_vect vectors[] __initdata = { 24 INTC_IRQ(MRSHPC, MRSHPC_IRQ0), 25}; 26 27static struct intc_prio_reg prio_registers[] __initdata = { 28 { FPGA_ILSR6, 0, 8, 4, /* IRLMSK */ 29 { 0, MRSHPC } }, 30}; 31 32static DECLARE_INTC_DESC(intc_desc, "SE7721", vectors, 33 NULL, NULL, prio_registers, NULL); 34 35/* 36 * Initialize IRQ setting 37 */ 38void __init init_se7721_IRQ(void) 39{ 40 /* PPCR */ 41 __raw_writew(__raw_readw(0xa4050118) & ~0x00ff, 0xa4050118); 42 43 register_intc_controller(&intc_desc); 44 intc_set_priority(MRSHPC_IRQ0, 0xf - MRSHPC_IRQ0); 45} 46