LXR linux/arch/arm/include/asm/hardware/uengine.h

   1/*
   2 * Generic library functions for the microengines found on the Intel
   3 * IXP2000 series of network processors.
   4 *
   5 * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
   6 * Dedicated to Marija Kulikova.
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU Lesser General Public License as
  10 * published by the Free Software Foundation; either version 2.1 of the
  11 * License, or (at your option) any later version.
  12 */
  13
  14#ifndef __IXP2000_UENGINE_H
  15#define __IXP2000_UENGINE_H
  16
  17extern u32 ixp2000_uengine_mask;
  18
  19struct ixp2000_uengine_code
  20{
  21        u32     cpu_model_bitmask;
  22        u8      cpu_min_revision;
  23        u8      cpu_max_revision;
  24
  25        u32     uengine_parameters;
  26
  27        struct ixp2000_reg_value {
  28                int     reg;
  29                u32     value;
  30        } *initial_reg_values;
  31
  32        int     num_insns;
  33        u8      *insns;
  34};
  35
  36u32 ixp2000_uengine_csr_read(int uengine, int offset);
  37void ixp2000_uengine_csr_write(int uengine, int offset, u32 value);
  38void ixp2000_uengine_reset(u32 uengine_mask);
  39void ixp2000_uengine_set_mode(int uengine, u32 mode);
  40void ixp2000_uengine_load_microcode(int uengine, u8 *ucode, int insns);
  41void ixp2000_uengine_init_context(int uengine, int context, int pc);
  42void ixp2000_uengine_start_contexts(int uengine, u8 ctx_mask);
  43void ixp2000_uengine_stop_contexts(int uengine, u8 ctx_mask);
  44int ixp2000_uengine_load(int uengine, struct ixp2000_uengine_code *c);
  45
  46#define IXP2000_UENGINE_8_CONTEXTS              0x00000000
  47#define IXP2000_UENGINE_4_CONTEXTS              0x80000000
  48#define IXP2000_UENGINE_PRN_UPDATE_EVERY        0x40000000
  49#define IXP2000_UENGINE_PRN_UPDATE_ON_ACCESS    0x00000000
  50#define IXP2000_UENGINE_NN_FROM_SELF            0x00100000
  51#define IXP2000_UENGINE_NN_FROM_PREVIOUS        0x00000000
  52#define IXP2000_UENGINE_ASSERT_EMPTY_AT_3       0x000c0000
  53#define IXP2000_UENGINE_ASSERT_EMPTY_AT_2       0x00080000
  54#define IXP2000_UENGINE_ASSERT_EMPTY_AT_1       0x00040000
  55#define IXP2000_UENGINE_ASSERT_EMPTY_AT_0       0x00000000
  56#define IXP2000_UENGINE_LM_ADDR1_GLOBAL         0x00020000
  57#define IXP2000_UENGINE_LM_ADDR1_PER_CONTEXT    0x00000000
  58#define IXP2000_UENGINE_LM_ADDR0_GLOBAL         0x00010000
  59#define IXP2000_UENGINE_LM_ADDR0_PER_CONTEXT    0x00000000
  60
  61
  62#endif
  63