diff options
| author | merge <null@invalid> | 2009-01-22 13:55:32 +0000 |
|---|---|---|
| committer | Andy Green <agreen@octopus.localdomain> | 2009-01-22 13:55:32 +0000 |
| commit | aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 (patch) | |
| tree | fbb786d0ac6f8a774fd834e9ce951197e60fbffa /arch/arm/mach-w90x900/irq.c | |
| parent | f2d78193eae5dccd3d588d2c8ea0866efc368332 (diff) | |
MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141
pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040
stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch
mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch
Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'arch/arm/mach-w90x900/irq.c')
| -rw-r--r-- | arch/arm/mach-w90x900/irq.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/arm/mach-w90x900/irq.c b/arch/arm/mach-w90x900/irq.c new file mode 100644 index 00000000000..0b4fc194729 --- /dev/null +++ b/arch/arm/mach-w90x900/irq.c @@ -0,0 +1,76 @@ +/* + * linux/arch/arm/mach-w90x900/irq.c + * + * based on linux/arch/arm/plat-s3c24xx/irq.c by Ben Dooks + * + * Copyright (c) 2008 Nuvoton technology corporation + * All rights reserved. + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/ptrace.h> +#include <linux/sysdev.h> +#include <linux/io.h> + +#include <asm/irq.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/regs-irq.h> + +static void w90x900_irq_mask(unsigned int irq) +{ + __raw_writel(1 << irq, REG_AIC_MDCR); +} + +/* + * By the w90p910 spec,any irq,only write 1 + * to REG_AIC_EOSCR for ACK + */ + +static void w90x900_irq_ack(unsigned int irq) +{ + __raw_writel(0x01, REG_AIC_EOSCR); +} + +static void w90x900_irq_unmask(unsigned int irq) +{ + unsigned long mask; + + if (irq == IRQ_T_INT_GROUP) { + mask = __raw_readl(REG_AIC_GEN); + __raw_writel(TIME_GROUP_IRQ | mask, REG_AIC_GEN); + __raw_writel(1 << IRQ_T_INT_GROUP, REG_AIC_MECR); + } + __raw_writel(1 << irq, REG_AIC_MECR); +} + +static struct irq_chip w90x900_irq_chip = { + .ack = w90x900_irq_ack, + .mask = w90x900_irq_mask, + .unmask = w90x900_irq_unmask, +}; + +void __init w90x900_init_irq(void) +{ + int irqno; + + __raw_writel(0xFFFFFFFE, REG_AIC_MDCR); + + for (irqno = IRQ_WDT; irqno <= IRQ_ADC; irqno++) { + set_irq_chip(irqno, &w90x900_irq_chip); + set_irq_handler(irqno, handle_level_irq); + set_irq_flags(irqno, IRQF_VALID); + } +} |