diff options
Diffstat (limited to 'arch/sh/boards/mach-se/7780/irq.c')
| -rw-r--r-- | arch/sh/boards/mach-se/7780/irq.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-se/7780/irq.c b/arch/sh/boards/mach-se/7780/irq.c new file mode 100644 index 000000000000..6bd70da6bb47 --- /dev/null +++ b/arch/sh/boards/mach-se/7780/irq.c @@ -0,0 +1,46 @@ +/* + * 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> + +/* + * 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); + + plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-7 */ +} |