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tsi108_irq.h

/*
 * (C) Copyright 2005 Tundra Semiconductor Corp.
 * Alex Bounine, <alexandreb at tundra.com).
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*
 * definitions for interrupt controller initialization and external interrupt
 * demultiplexing on TSI108EMU/SVB boards.
 */

#ifndef _ASM_POWERPC_TSI108_IRQ_H
#define _ASM_POWERPC_TSI108_IRQ_H

/*
 * Tsi108 interrupts
 */
#ifndef TSI108_IRQ_REG_BASE
#define TSI108_IRQ_REG_BASE         0
#endif

#define TSI108_IRQ(x)         (TSI108_IRQ_REG_BASE + (x))

#define TSI108_MAX_VECTORS    (36 + 4)    /* 36 sources + PCI INT demux */
#define MAX_TASK_PRIO   0xF

#define TSI108_IRQ_SPURIOUS   (TSI108_MAX_VECTORS)

#define DEFAULT_PRIO_LVL      10    /* initial priority level */

/* Interrupt vectors assignment to external and internal
 * sources of requests. */

/* EXTERNAL INTERRUPT SOURCES */

#define IRQ_TSI108_EXT_INT0   TSI108_IRQ(0)     /* External Source at INT[0] */
#define IRQ_TSI108_EXT_INT1   TSI108_IRQ(1)     /* External Source at INT[1] */
#define IRQ_TSI108_EXT_INT2   TSI108_IRQ(2)     /* External Source at INT[2] */
#define IRQ_TSI108_EXT_INT3   TSI108_IRQ(3)     /* External Source at INT[3] */

/* INTERNAL INTERRUPT SOURCES */

#define IRQ_TSI108_RESERVED0  TSI108_IRQ(4)     /* Reserved IRQ */
#define IRQ_TSI108_RESERVED1  TSI108_IRQ(5)     /* Reserved IRQ */
#define IRQ_TSI108_RESERVED2  TSI108_IRQ(6)     /* Reserved IRQ */
#define IRQ_TSI108_RESERVED3  TSI108_IRQ(7)     /* Reserved IRQ */
#define IRQ_TSI108_DMA0       TSI108_IRQ(8)     /* DMA0 */
#define IRQ_TSI108_DMA1       TSI108_IRQ(9)     /* DMA1 */
#define IRQ_TSI108_DMA2       TSI108_IRQ(10)    /* DMA2 */
#define IRQ_TSI108_DMA3       TSI108_IRQ(11)    /* DMA3 */
#define IRQ_TSI108_UART0      TSI108_IRQ(12)    /* UART0 */
#define IRQ_TSI108_UART1      TSI108_IRQ(13)    /* UART1 */
#define IRQ_TSI108_I2C        TSI108_IRQ(14)    /* I2C */
#define IRQ_TSI108_GPIO       TSI108_IRQ(15)    /* GPIO */
#define IRQ_TSI108_GIGE0      TSI108_IRQ(16)    /* GIGE0 */
#define IRQ_TSI108_GIGE1      TSI108_IRQ(17)    /* GIGE1 */
#define IRQ_TSI108_RESERVED4  TSI108_IRQ(18)    /* Reserved IRQ */
#define IRQ_TSI108_HLP        TSI108_IRQ(19)    /* HLP */
#define IRQ_TSI108_SDRAM      TSI108_IRQ(20)    /* SDC */
#define IRQ_TSI108_PROC_IF    TSI108_IRQ(21)    /* Processor IF */
#define IRQ_TSI108_RESERVED5  TSI108_IRQ(22)    /* Reserved IRQ */
#define IRQ_TSI108_PCI        TSI108_IRQ(23)    /* PCI/X block */

#define IRQ_TSI108_MBOX0      TSI108_IRQ(24)    /* Mailbox 0 register */
#define IRQ_TSI108_MBOX1      TSI108_IRQ(25)    /* Mailbox 1 register */
#define IRQ_TSI108_MBOX2      TSI108_IRQ(26)    /* Mailbox 2 register */
#define IRQ_TSI108_MBOX3      TSI108_IRQ(27)    /* Mailbox 3 register */

#define IRQ_TSI108_DBELL0     TSI108_IRQ(28)    /* Doorbell 0 */
#define IRQ_TSI108_DBELL1     TSI108_IRQ(29)    /* Doorbell 1 */
#define IRQ_TSI108_DBELL2     TSI108_IRQ(30)    /* Doorbell 2 */
#define IRQ_TSI108_DBELL3     TSI108_IRQ(31)    /* Doorbell 3 */

#define IRQ_TSI108_TIMER0     TSI108_IRQ(32)    /* Global Timer 0 */
#define IRQ_TSI108_TIMER1     TSI108_IRQ(33)    /* Global Timer 1 */
#define IRQ_TSI108_TIMER2     TSI108_IRQ(34)    /* Global Timer 2 */
#define IRQ_TSI108_TIMER3     TSI108_IRQ(35)    /* Global Timer 3 */

/*
 * PCI bus INTA# - INTD# lines demultiplexor
 */
#define IRQ_PCI_INTAD_BASE    TSI108_IRQ(36)
#define IRQ_PCI_INTA          (IRQ_PCI_INTAD_BASE + 0)
#define IRQ_PCI_INTB          (IRQ_PCI_INTAD_BASE + 1)
#define IRQ_PCI_INTC          (IRQ_PCI_INTAD_BASE + 2)
#define IRQ_PCI_INTD          (IRQ_PCI_INTAD_BASE + 3)
#define NUM_PCI_IRQS          (4)

/* number of entries in vector dispatch table */
#define IRQ_TSI108_TAB_SIZE   (TSI108_MAX_VECTORS + 1)

/* Mapping of MPIC outputs to processors' interrupt pins */

#define IDIR_INT_OUT0         0x1
#define IDIR_INT_OUT1         0x2
#define IDIR_INT_OUT2         0x4
#define IDIR_INT_OUT3         0x8

/*---------------------------------------------------------------
 * IRQ line configuration parameters */

/* Interrupt delivery modes */
typedef enum {
      TSI108_IRQ_DIRECTED,
      TSI108_IRQ_DISTRIBUTED,
} TSI108_IRQ_MODE;
#endif                        /*  _ASM_POWERPC_TSI108_IRQ_H */

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