arch/ppc/syslib/ipic.h

   1 /*
   2  * arch/ppc/kernel/ipic.h
   3  *
   4  * IPIC private definitions and structure.
   5  *
   6  * Maintainer: Kumar Gala <galak@kernel.crashing.org>
   7  *
   8  * Copyright 2005 Freescale Semiconductor, Inc
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  */
  15 #ifndef __IPIC_H__
  16 #define __IPIC_H__
  17
  18 #include <asm/ipic.h>
  19
  20 #define MPC83xx_IPIC_SIZE       (0x00100)
  21
  22 /* System Global Interrupt Configuration Register */
  23 #define SICFR_IPSA      0x00010000
  24 #define SICFR_IPSD      0x00080000
  25 #define SICFR_MPSA      0x00200000
  26 #define SICFR_MPSB      0x00400000
  27
  28 /* System External Interrupt Mask Register */
  29 #define SEMSR_SIRQ0     0x00008000
  30
  31 /* System Error Control Register */
  32 #define SERCR_MCPR      0x00000001
  33
  34 struct ipic {
  35         volatile u32 __iomem    *regs;
  36         unsigned int            irq_offset;
  37 };
  38
  39 struct ipic_info {
  40         u8      pend;           /* pending register offset from base */
  41         u8      mask;           /* mask register offset from base */
  42         u8      prio;           /* priority register offset from base */
  43         u8      force;          /* force register offset from base */
  44         u8      bit;            /* register bit position (as per doc)
  45                                    bit mask = 1 << (31 - bit) */
  46         u8      prio_mask;      /* priority mask value */
  47 };
  48
  49 #endif /* __IPIC_H__ */