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/*
* linux/arch/sh/boards/se/7780/irq.c
*
* Copyright (C) 2006,2007 Nobuhiro Iwamatsu
*
* Hitachi UL SolutionEngine 7780 Support.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/se7780.h>
static struct intc2_data intc2_irq_table[] = {
{ 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT1 */
{ 4, 0, 30, 0, 30, 3 }, /* daughter board EXTINT2 */
{ 6, 0, 29, 0, 29, 3 }, /* daughter board EXTINT3 */
{ 8, 0, 28, 0, 28, 3 }, /* SMC 91C111 (LAN) */
{ 10, 0, 27, 0, 27, 3 }, /* daughter board EXTINT4 */
{ 4, 0, 30, 0, 30, 3 }, /* daughter board EXTINT5 */
{ 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT6 */
{ 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT7 */
{ 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT8 */
{ 0 , 0, 24, 0, 24, 3 }, /* SM501 */
};
static struct intc2_desc intc2_irq_desc __read_mostly = {
.prio_base = 0, /* N/A */
.msk_base = 0xffd00044,
.mskclr_base = 0xffd00064,
.intc2_data = intc2_irq_table,
.nr_irqs = ARRAY_SIZE(intc2_irq_table),
.chip = {
.name = "INTC2-se7780",
},
};
/*
* Initialize IRQ setting
*/
void __init init_se7780_IRQ(void)
{
/* enable all interrupt at FPGA */
ctrl_outw(0, FPGA_INTMSK1);
/* mask SM501 interrupt */
ctrl_outw((ctrl_inw(FPGA_INTMSK1) | 0x0002), FPGA_INTMSK1);
/* enable all interrupt at FPGA */
ctrl_outw(0, FPGA_INTMSK2);
/* set FPGA INTSEL register */
/* FPGA + 0x06 */
ctrl_outw( ((IRQPIN_SM501 << IRQPOS_SM501) |
(IRQPIN_SMC91CX << IRQPOS_SMC91CX)), FPGA_INTSEL1);
/* FPGA + 0x08 */
ctrl_outw(((IRQPIN_EXTINT4 << IRQPOS_EXTINT4) |
(IRQPIN_EXTINT3 << IRQPOS_EXTINT3) |
(IRQPIN_EXTINT2 << IRQPOS_EXTINT2) |
(IRQPIN_EXTINT1 << IRQPOS_EXTINT1)), FPGA_INTSEL2);
/* FPGA + 0x0A */
ctrl_outw((IRQPIN_PCCPW << IRQPOS_PCCPW), FPGA_INTSEL3);
register_intc2_controller(&intc2_irq_desc);
}
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