include/asm-arm/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
  17 extern u32 ixp2000_uengine_mask;
  18
  19 struct 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
  36 u32 ixp2000_uengine_csr_read(int uengine, int offset);
  37 void ixp2000_uengine_csr_write(int uengine, int offset, u32 value);
  38 void ixp2000_uengine_reset(u32 uengine_mask);
  39 void ixp2000_uengine_set_mode(int uengine, u32 mode);
  40 void ixp2000_uengine_load_microcode(int uengine, u8 *ucode, int insns);
  41 void ixp2000_uengine_init_context(int uengine, int context, int pc);
  42 void ixp2000_uengine_start_contexts(int uengine, u8 ctx_mask);
  43 void ixp2000_uengine_stop_contexts(int uengine, u8 ctx_mask);
  44 int 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