irq.h

linux-2.6.15.6

/*
 * linux/include/asm-sh/irq_microdev.h
 *
 * Copyright (C) 2003 Sean McGoogan ([e-mail])
 *
 * IRQ functions for the SuperH SH4-202 MicroDev board.
 *
 * May be copied or modified under the terms of the GNU General Public
 * License.  See linux/COPYING for more information.
 *
 */


#ifndef _ASM_SH_IRQ_MICRODEV_H
#define _ASM_SH_IRQ_MICRODEV_H

extern void init_microdev_irq(void);
extern void microdev_print_fpga_intc_status(void);


	/*
	 *	The following are useful macros for manipulating the
	 *	interrupt controller (INTC) on the CPU-board FPGA.
	 *	It should be noted that there is an INTC on the FPGA,
	 *	and a seperate INTC on the SH4-202 core - these are
	 *	two different things, both of which need to be prorammed
	 *	to correctly route - unfortunately, they have the
	 *	same name and abbreviations!
	 */
#define	MICRODEV_FPGA_INTC_BASE		0xa6110000ul				/* INTC base address on CPU-board FPGA */
#define	MICRODEV_FPGA_INTENB_REG	(MICRODEV_FPGA_INTC_BASE+0ul)		/* Interrupt Enable Register on INTC on CPU-board FPGA */
#define	MICRODEV_FPGA_INTDSB_REG	(MICRODEV_FPGA_INTC_BASE+8ul)		/* Interrupt Disable Register on INTC on CPU-board FPGA */
#define	MICRODEV_FPGA_INTC_MASK(n)	(1ul<<(n))				/* Interupt mask to enable/disable INTC in CPU-board FPGA */
#define	MICRODEV_FPGA_INTPRI_REG(n)	(MICRODEV_FPGA_INTC_BASE+0x10+((n)/8)*8)/* Interrupt Priority Register on INTC on CPU-board FPGA */
#define	MICRODEV_FPGA_INTPRI_LEVEL(n,x)	((x)<<(((n)%8)*4))			/* MICRODEV_FPGA_INTPRI_LEVEL(int_number, int_level) */
#define	MICRODEV_FPGA_INTPRI_MASK(n)	(MICRODEV_FPGA_INTPRI_LEVEL((n),0xful))	/* Interrupt Priority Mask on INTC on CPU-board FPGA */
#define	MICRODEV_FPGA_INTSRC_REG	(MICRODEV_FPGA_INTC_BASE+0x30ul)	/* Interrupt Source Register on INTC on CPU-board FPGA */
#define	MICRODEV_FPGA_INTREQ_REG	(MICRODEV_FPGA_INTC_BASE+0x38ul)	/* Interrupt Request Register on INTC on CPU-board FPGA */


	/*
	 *	The following are the IRQ numbers for the Linux Kernel for external interrupts.
	 *	i.e. the numbers seen by 'cat /proc/interrupt'.
	 */
#define MICRODEV_LINUX_IRQ_KEYBOARD	 1	/* SuperIO Keyboard */
#define MICRODEV_LINUX_IRQ_SERIAL1	 2	/* SuperIO Serial #1 */
#define MICRODEV_LINUX_IRQ_ETHERNET	 3	/* on-board Ethnernet */
#define MICRODEV_LINUX_IRQ_SERIAL2	 4	/* SuperIO Serial #2 */
#define MICRODEV_LINUX_IRQ_USB_HC	 7	/* on-board USB HC */
#define MICRODEV_LINUX_IRQ_MOUSE	12	/* SuperIO PS/2 Mouse */
#define MICRODEV_LINUX_IRQ_IDE2		13	/* SuperIO IDE #2 */
#define MICRODEV_LINUX_IRQ_IDE1		14	/* SuperIO IDE #1 */

	/*
	 *	The following are the IRQ numbers for the INTC on the FPGA for external interrupts.
	 *	i.e. the bits in the INTC registers in the FPGA.
	 */
#define MICRODEV_FPGA_IRQ_KEYBOARD	 1	/* SuperIO Keyboard */
#define MICRODEV_FPGA_IRQ_SERIAL1	 3	/* SuperIO Serial #1 */
#define MICRODEV_FPGA_IRQ_SERIAL2	 4	/* SuperIO Serial #2 */
#define MICRODEV_FPGA_IRQ_MOUSE		12	/* SuperIO PS/2 Mouse */
#define MICRODEV_FPGA_IRQ_IDE1		14	/* SuperIO IDE #1 */
#define MICRODEV_FPGA_IRQ_IDE2		15	/* SuperIO IDE #2 */
#define MICRODEV_FPGA_IRQ_USB_HC	16	/* on-board USB HC */
#define MICRODEV_FPGA_IRQ_ETHERNET	18	/* on-board Ethnernet */

#define MICRODEV_IRQ_PCI_INTA		 8
#define MICRODEV_IRQ_PCI_INTB		 9
#define MICRODEV_IRQ_PCI_INTC		10
#define MICRODEV_IRQ_PCI_INTD		11

#endif /* _ASM_SH_IRQ_MICRODEV_H */