2 * Renesas Solutions Highlander R7780RP-1 Support.
4 * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
5 * Copyright (C) 2006 Paul Mundt
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file "COPYING" in the main directory of this archive
11 #include <linux/init.h>
12 #include <linux/irq.h>
13 #include <linux/interrupt.h>
15 #include <asm/r7780rp.h>
17 #ifdef CONFIG_SH_R7780MP
18 static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0};
20 static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0};
23 static void enable_r7780rp_irq(unsigned int irq)
25 /* Set priority in IPR back to original value */
26 ctrl_outw(ctrl_inw(IRLCNTR1) | (1 << mask_pos[irq]), IRLCNTR1);
29 static void disable_r7780rp_irq(unsigned int irq)
31 /* Set the priority in IPR to 0 */
32 ctrl_outw(ctrl_inw(IRLCNTR1) & (0xffff ^ (1 << mask_pos[irq])),
36 static struct irq_chip r7780rp_irq_chip __read_mostly = {
38 .mask = disable_r7780rp_irq,
39 .unmask = enable_r7780rp_irq,
40 .mask_ack = disable_r7780rp_irq,
44 * Initialize IRQ setting
46 void __init init_r7780rp_IRQ(void)
50 for (i = 0; i < 15; i++) {
51 disable_irq_nosync(i);
52 set_irq_chip_and_handler_name(i, &r7780rp_irq_chip,
53 handle_level_irq, "level");
54 enable_r7780rp_irq(i);