47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* linux/arch/sh/boards/se/7780/irq.c
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*
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* Copyright (C) 2006,2007 Nobuhiro Iwamatsu
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*
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* Hitachi UL SolutionEngine 7780 Support.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/interrupt.h>
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#include <asm/irq.h>
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#include <asm/io.h>
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#include <mach-se/mach/se7780.h>
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/*
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* Initialize IRQ setting
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*/
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void __init init_se7780_IRQ(void)
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{
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/* enable all interrupt at FPGA */
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ctrl_outw(0, FPGA_INTMSK1);
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/* mask SM501 interrupt */
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ctrl_outw((ctrl_inw(FPGA_INTMSK1) | 0x0002), FPGA_INTMSK1);
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/* enable all interrupt at FPGA */
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ctrl_outw(0, FPGA_INTMSK2);
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/* set FPGA INTSEL register */
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/* FPGA + 0x06 */
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ctrl_outw( ((IRQPIN_SM501 << IRQPOS_SM501) |
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(IRQPIN_SMC91CX << IRQPOS_SMC91CX)), FPGA_INTSEL1);
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/* FPGA + 0x08 */
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ctrl_outw(((IRQPIN_EXTINT4 << IRQPOS_EXTINT4) |
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(IRQPIN_EXTINT3 << IRQPOS_EXTINT3) |
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(IRQPIN_EXTINT2 << IRQPOS_EXTINT2) |
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(IRQPIN_EXTINT1 << IRQPOS_EXTINT1)), FPGA_INTSEL2);
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/* FPGA + 0x0A */
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ctrl_outw((IRQPIN_PCCPW << IRQPOS_PCCPW), FPGA_INTSEL3);
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plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-7 */
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}
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