LXR linux/arch/powerpc/include/asm/ipic.h

   1/*
   2 * IPIC external definitions and structure.
   3 *
   4 * Maintainer: Kumar Gala <galak@kernel.crashing.org>
   5 *
   6 * Copyright 2005 Freescale Semiconductor, Inc
   7 *
   8 * This program is free software; you can redistribute  it and/or modify it
   9 * under  the terms of  the GNU General  Public License as published by the
  10 * Free Software Foundation;  either version 2 of the  License, or (at your
  11 * option) any later version.
  12 */
  13#ifdef __KERNEL__
  14#ifndef __ASM_IPIC_H__
  15#define __ASM_IPIC_H__
  16
  17#include <linux/irq.h>
  18
  19/* Flags when we init the IPIC */
  20#define IPIC_SPREADMODE_GRP_A   0x00000001
  21#define IPIC_SPREADMODE_GRP_B   0x00000002
  22#define IPIC_SPREADMODE_GRP_C   0x00000004
  23#define IPIC_SPREADMODE_GRP_D   0x00000008
  24#define IPIC_SPREADMODE_MIX_A   0x00000010
  25#define IPIC_SPREADMODE_MIX_B   0x00000020
  26#define IPIC_DISABLE_MCP_OUT    0x00000040
  27#define IPIC_IRQ0_MCP           0x00000080
  28
  29/* IPIC registers offsets */
  30#define IPIC_SICFR      0x00    /* System Global Interrupt Configuration Register */
  31#define IPIC_SIVCR      0x04    /* System Global Interrupt Vector Register */
  32#define IPIC_SIPNR_H    0x08    /* System Internal Interrupt Pending Register (HIGH) */
  33#define IPIC_SIPNR_L    0x0C    /* System Internal Interrupt Pending Register (LOW) */
  34#define IPIC_SIPRR_A    0x10    /* System Internal Interrupt group A Priority Register */
  35#define IPIC_SIPRR_B    0x14    /* System Internal Interrupt group B Priority Register */
  36#define IPIC_SIPRR_C    0x18    /* System Internal Interrupt group C Priority Register */
  37#define IPIC_SIPRR_D    0x1C    /* System Internal Interrupt group D Priority Register */
  38#define IPIC_SIMSR_H    0x20    /* System Internal Interrupt Mask Register (HIGH) */
  39#define IPIC_SIMSR_L    0x24    /* System Internal Interrupt Mask Register (LOW) */
  40#define IPIC_SICNR      0x28    /* System Internal Interrupt Control Register */
  41#define IPIC_SEPNR      0x2C    /* System External Interrupt Pending Register */
  42#define IPIC_SMPRR_A    0x30    /* System Mixed Interrupt group A Priority Register */
  43#define IPIC_SMPRR_B    0x34    /* System Mixed Interrupt group B Priority Register */
  44#define IPIC_SEMSR      0x38    /* System External Interrupt Mask Register */
  45#define IPIC_SECNR      0x3C    /* System External Interrupt Control Register */
  46#define IPIC_SERSR      0x40    /* System Error Status Register */
  47#define IPIC_SERMR      0x44    /* System Error Mask Register */
  48#define IPIC_SERCR      0x48    /* System Error Control Register */
  49#define IPIC_SIFCR_H    0x50    /* System Internal Interrupt Force Register (HIGH) */
  50#define IPIC_SIFCR_L    0x54    /* System Internal Interrupt Force Register (LOW) */
  51#define IPIC_SEFCR      0x58    /* System External Interrupt Force Register */
  52#define IPIC_SERFR      0x5C    /* System Error Force Register */
  53#define IPIC_SCVCR      0x60    /* System Critical Interrupt Vector Register */
  54#define IPIC_SMVCR      0x64    /* System Management Interrupt Vector Register */
  55
  56enum ipic_prio_grp {
  57        IPIC_INT_GRP_A = IPIC_SIPRR_A,
  58        IPIC_INT_GRP_D = IPIC_SIPRR_D,
  59        IPIC_MIX_GRP_A = IPIC_SMPRR_A,
  60        IPIC_MIX_GRP_B = IPIC_SMPRR_B,
  61};
  62
  63enum ipic_mcp_irq {
  64        IPIC_MCP_IRQ0 = 0,
  65        IPIC_MCP_WDT  = 1,
  66        IPIC_MCP_SBA  = 2,
  67        IPIC_MCP_PCI1 = 5,
  68        IPIC_MCP_PCI2 = 6,
  69        IPIC_MCP_MU   = 7,
  70};
  71
  72extern int ipic_set_priority(unsigned int irq, unsigned int priority);
  73extern void ipic_set_highest_priority(unsigned int irq);
  74extern void ipic_set_default_priority(void);
  75extern void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq);
  76extern void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq);
  77extern u32 ipic_get_mcp_status(void);
  78extern void ipic_clear_mcp_status(u32 mask);
  79
  80extern struct ipic * ipic_init(struct device_node *node, unsigned int flags);
  81extern unsigned int ipic_get_irq(void);
  82
  83#endif /* __ASM_IPIC_H__ */
  84#endif /* __KERNEL__ */
  85