diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-05 18:18:05 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-05 18:18:05 -0700 |
commit | 7abec10c623d9e0416dab6919a0ea22e6283516b (patch) | |
tree | 83aa79c369e99c4fc60eea91ebd399b7689b312e /arch/arm/plat-samsung/include/plat/irq.h | |
parent | 0de9adf284ec20454ecf37ffd98e7e98ba7292d6 (diff) | |
parent | cfaf8fc5b59527281e9ddc2e0e04e1127936e17f (diff) | |
download | blackbird-op-linux-7abec10c623d9e0416dab6919a0ea22e6283516b.tar.gz blackbird-op-linux-7abec10c623d9e0416dab6919a0ea22e6283516b.zip |
Merge branch 'next/cleanup3' of git://git.linaro.org/people/arnd/arm-soc
* 'next/cleanup3' of git://git.linaro.org/people/arnd/arm-soc: (79 commits)
ARM: SAMSUNG: Move fimc plat. device from board files to plat-samsung
ARM: SAMSUNG: Cleanup resources by using macro
ARM: SAMSUNG: Cleanup plat-samsung/devs.c and devs.h
ARM: S5P: To merge devs.c files to one devs.c
ARM: S3C64XX: To merge devs.c files to one devs.c
ARM: S3C24XX: To merge s3c24xx devs.c files to one devs.c
ARM: S5P64X0: Add Power Management support
ARM: S5P: Make the sleep code common for S5P series SoCs
ARM: S5P: Make the common S5P PM code conditionally compile
ARM: SAMSUNG: Move S5P header files to plat-samsung
ARM: SAMSUNG: Move S3C24XX header files to plat-samsung
ARM: SAMSUNG: Moving each SoC support header files
ARM: SAMSUNG: Consolidate plat/pll.h
ARM: SAMSUNG: Consolidate plat/pwm-clock.h
ARM: SAMSUNG: Cleanup mach/clkdev.h
ARM: SAMSUNG: remove sdhci default configuration setup platform helper
ARM: EXYNOS4: Add FIMC device on SMDKV310 board
ARM: EXYNOS4: Add header file protection macros
ARM: EXYNOS4: Add usb ehci device to the SMDKV310
ARM: S3C2443: Add hsspi-clock from pclk and rename S3C2443 hsspi sclk
...
Fix up conflicts in
- arch/arm/mach-exynos4/{Kconfig,clock.c}
ARM_CPU_SUSPEND, various random device tables (gah!)
- drivers/gpio/Makefile
sa1100 gpio added, samsung gpio drivers merged
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/irq.h')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/irq.h | 116 |
1 files changed, 116 insertions, 0 deletions
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 000000000000..e21a89bc26c9 --- /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 <ben@simtec.co.uk> + * + * 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 <linux/io.h> + +#include <mach/hardware.h> +#include <mach/regs-irq.h> +#include <mach/regs-gpio.h> + +#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); |