2 * Generic library functions for the microengines found on the Intel
3 * IXP2000 series of network processors.
5 * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
6 * Dedicated to Marija Kulikova.
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.
14 #ifndef __IXP2000_UENGINE_H
15 #define __IXP2000_UENGINE_H
17 extern u32 ixp2000_uengine_mask;
19 struct ixp2000_uengine_code
21 u32 cpu_model_bitmask;
25 u32 uengine_parameters;
27 struct ixp2000_reg_value {
30 } *initial_reg_values;
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);
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