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