2 * linux/arch/sh/boards/se/7780/irq.c
4 * Copyright (C) 2006,2007 Nobuhiro Iwamatsu
6 * Hitachi UL SolutionEngine 7780 Support.
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
12 #include <linux/init.h>
13 #include <linux/irq.h>
14 #include <linux/interrupt.h>
17 #include <asm/se7780.h>
20 * Initialize IRQ setting
22 void __init init_se7780_IRQ(void)
24 /* enable all interrupt at FPGA */
25 ctrl_outw(0, FPGA_INTMSK1);
26 /* mask SM501 interrupt */
27 ctrl_outw((ctrl_inw(FPGA_INTMSK1) | 0x0002), FPGA_INTMSK1);
28 /* enable all interrupt at FPGA */
29 ctrl_outw(0, FPGA_INTMSK2);
31 /* set FPGA INTSEL register */
33 ctrl_outw( ((IRQPIN_SM501 << IRQPOS_SM501) |
34 (IRQPIN_SMC91CX << IRQPOS_SMC91CX)), FPGA_INTSEL1);
37 ctrl_outw(((IRQPIN_EXTINT4 << IRQPOS_EXTINT4) |
38 (IRQPIN_EXTINT3 << IRQPOS_EXTINT3) |
39 (IRQPIN_EXTINT2 << IRQPOS_EXTINT2) |
40 (IRQPIN_EXTINT1 << IRQPOS_EXTINT1)), FPGA_INTSEL2);
43 ctrl_outw((IRQPIN_PCCPW << IRQPOS_PCCPW), FPGA_INTSEL3);
45 plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-7 */