diff options
Diffstat (limited to 'include/linux/irqchip')
| -rw-r--r-- | include/linux/irqchip/spear-shirq.h | 64 | ||||
| -rw-r--r-- | include/linux/irqchip/sunxi.h | 27 | ||||
| -rw-r--r-- | include/linux/irqchip/versatile-fpga.h | 13 |
3 files changed, 104 insertions, 0 deletions
diff --git a/include/linux/irqchip/spear-shirq.h b/include/linux/irqchip/spear-shirq.h new file mode 100644 index 00000000000..c8be16d213a --- /dev/null +++ b/include/linux/irqchip/spear-shirq.h @@ -0,0 +1,64 @@ +/* + * SPEAr platform shared irq layer header file + * + * Copyright (C) 2009-2012 ST Microelectronics + * Viresh Kumar <viresh.linux@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __SPEAR_SHIRQ_H +#define __SPEAR_SHIRQ_H + +#include <linux/irq.h> +#include <linux/types.h> + +/* + * struct shirq_regs: shared irq register configuration + * + * enb_reg: enable register offset + * reset_to_enb: val 1 indicates, we need to clear bit for enabling interrupt + * status_reg: status register offset + * status_reg_mask: status register valid mask + * clear_reg: clear register offset + * reset_to_clear: val 1 indicates, we need to clear bit for clearing interrupt + */ +struct shirq_regs { + u32 enb_reg; + u32 reset_to_enb; + u32 status_reg; + u32 clear_reg; + u32 reset_to_clear; +}; + +/* + * struct spear_shirq: shared irq structure + * + * irq: hardware irq number + * irq_base: base irq in linux domain + * irq_nr: no. of shared interrupts in a particular block + * irq_bit_off: starting bit offset in the status register + * invalid_irq: irq group is currently disabled + * base: base address of shared irq register + * regs: register configuration for shared irq block + */ +struct spear_shirq { + u32 irq; + u32 irq_base; + u32 irq_nr; + u32 irq_bit_off; + int invalid_irq; + void __iomem *base; + struct shirq_regs regs; +}; + +int __init spear300_shirq_of_init(struct device_node *np, + struct device_node *parent); +int __init spear310_shirq_of_init(struct device_node *np, + struct device_node *parent); +int __init spear320_shirq_of_init(struct device_node *np, + struct device_node *parent); + +#endif /* __SPEAR_SHIRQ_H */ diff --git a/include/linux/irqchip/sunxi.h b/include/linux/irqchip/sunxi.h new file mode 100644 index 00000000000..1fe2c2260e2 --- /dev/null +++ b/include/linux/irqchip/sunxi.h @@ -0,0 +1,27 @@ +/* + * Copyright 2012 Maxime Ripard + * + * Maxime Ripard <maxime.ripard@free-electrons.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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __LINUX_IRQCHIP_SUNXI_H +#define __LINUX_IRQCHIP_SUNXI_H + +#include <asm/exception.h> + +extern void sunxi_init_irq(void); + +extern asmlinkage void __exception_irq_entry sunxi_handle_irq( + struct pt_regs *regs); + +#endif diff --git a/include/linux/irqchip/versatile-fpga.h b/include/linux/irqchip/versatile-fpga.h new file mode 100644 index 00000000000..1fac9651d3c --- /dev/null +++ b/include/linux/irqchip/versatile-fpga.h @@ -0,0 +1,13 @@ +#ifndef PLAT_FPGA_IRQ_H +#define PLAT_FPGA_IRQ_H + +struct device_node; +struct pt_regs; + +void fpga_handle_irq(struct pt_regs *regs); +void fpga_irq_init(void __iomem *, const char *, int, int, u32, + struct device_node *node); +int fpga_irq_of_init(struct device_node *node, + struct device_node *parent); + +#endif |