From dc98e4145d82e471cc02d4e0b950a1945bcb084f Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Wed, 28 Sep 2011 20:48:52 +0900 Subject: ARM: SAMSUNG: Move S3C24XX header files to plat-samsung This patch moves header files from plat-s3c24xx to plat-samsung to remove plat-s3c24xx directory to make one plat-samsung directory for Samsung SoCs. And this patch includes fixing coding style, too. Cc: Ben Dooks Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/include/plat/irq.h | 116 +++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 arch/arm/plat-samsung/include/plat/irq.h (limited to 'arch/arm/plat-samsung/include/plat/irq.h') diff --git a/arch/arm/plat-samsung/include/plat/irq.h b/arch/arm/plat-samsung/include/plat/irq.h new file mode 100644 index 00000000000..e21a89bc26c --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/irq.h @@ -0,0 +1,116 @@ +/* linux/arch/arm/plat-samsung/include/plat/irq.h + * + * Copyright (c) 2004-2005 Simtec Electronics + * Ben Dooks + * + * Header file for S3C24XX CPU IRQ support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include + +#include +#include +#include + +#define irqdbf(x...) +#define irqdbf2(x...) + +#define EXTINT_OFF (IRQ_EINT4 - 4) + +/* these are exported for arch/arm/mach-* usage */ +extern struct irq_chip s3c_irq_level_chip; +extern struct irq_chip s3c_irq_chip; + +static inline void s3c_irqsub_mask(unsigned int irqno, + unsigned int parentbit, + int subcheck) +{ + unsigned long mask; + unsigned long submask; + + submask = __raw_readl(S3C2410_INTSUBMSK); + mask = __raw_readl(S3C2410_INTMSK); + + submask |= (1UL << (irqno - IRQ_S3CUART_RX0)); + + /* check to see if we need to mask the parent IRQ */ + + if ((submask & subcheck) == subcheck) + __raw_writel(mask | parentbit, S3C2410_INTMSK); + + /* write back masks */ + __raw_writel(submask, S3C2410_INTSUBMSK); + +} + +static inline void s3c_irqsub_unmask(unsigned int irqno, + unsigned int parentbit) +{ + unsigned long mask; + unsigned long submask; + + submask = __raw_readl(S3C2410_INTSUBMSK); + mask = __raw_readl(S3C2410_INTMSK); + + submask &= ~(1UL << (irqno - IRQ_S3CUART_RX0)); + mask &= ~parentbit; + + /* write back masks */ + __raw_writel(submask, S3C2410_INTSUBMSK); + __raw_writel(mask, S3C2410_INTMSK); +} + + +static inline void s3c_irqsub_maskack(unsigned int irqno, + unsigned int parentmask, + unsigned int group) +{ + unsigned int bit = 1UL << (irqno - IRQ_S3CUART_RX0); + + s3c_irqsub_mask(irqno, parentmask, group); + + __raw_writel(bit, S3C2410_SUBSRCPND); + + /* only ack parent if we've got all the irqs (seems we must + * ack, all and hope that the irq system retriggers ok when + * the interrupt goes off again) + */ + + if (1) { + __raw_writel(parentmask, S3C2410_SRCPND); + __raw_writel(parentmask, S3C2410_INTPND); + } +} + +static inline void s3c_irqsub_ack(unsigned int irqno, + unsigned int parentmask, + unsigned int group) +{ + unsigned int bit = 1UL << (irqno - IRQ_S3CUART_RX0); + + __raw_writel(bit, S3C2410_SUBSRCPND); + + /* only ack parent if we've got all the irqs (seems we must + * ack, all and hope that the irq system retriggers ok when + * the interrupt goes off again) + */ + + if (1) { + __raw_writel(parentmask, S3C2410_SRCPND); + __raw_writel(parentmask, S3C2410_INTPND); + } +} + +/* exported for use in arch/arm/mach-s3c2410 */ + +#ifdef CONFIG_PM +extern int s3c_irq_wake(struct irq_data *data, unsigned int state); +#else +#define s3c_irq_wake NULL +#endif + +extern int s3c_irqext_type(struct irq_data *d, unsigned int type); -- cgit v1.2.3-18-g5258