1 | /* $NetBSD: gti2creg.h,v 1.2 2005/02/27 00:27:21 perry Exp $ */ |
---|
2 | |
---|
3 | /* |
---|
4 | * Copyright (c) 2005 Brocade Communcations, inc. |
---|
5 | * All rights reserved. |
---|
6 | * |
---|
7 | * Written by Matt Thomas for Brocade Communcations, Inc. |
---|
8 | * |
---|
9 | * Redistribution and use in source and binary forms, with or without |
---|
10 | * modification, are permitted provided that the following conditions |
---|
11 | * are met: |
---|
12 | * 1. Redistributions of source code must retain the above copyright |
---|
13 | * notice, this list of conditions and the following disclaimer. |
---|
14 | * 2. Redistributions in binary form must reproduce the above copyright |
---|
15 | * notice, this list of conditions and the following disclaimer in the |
---|
16 | * documentation and/or other materials provided with the distribution. |
---|
17 | * 3. The name of Brocade Communications, Inc. may not be used to endorse |
---|
18 | * or promote products derived from this software without specific prior |
---|
19 | * written permission. |
---|
20 | * |
---|
21 | * THIS SOFTWARE IS PROVIDED BY BROCADE COMMUNICATIONS, INC. ``AS IS'' AND |
---|
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
24 | * ARE DISCLAIMED. IN NO EVENT SHALL EITHER BROCADE COMMUNICATIONS, INC. BE |
---|
25 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
---|
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
---|
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
---|
28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
---|
29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
---|
30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
---|
31 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
---|
32 | */ |
---|
33 | |
---|
34 | #ifndef _DEV_MARVELL_GTI2CREG_H_ |
---|
35 | #define _DEV_MARVELL_GTI2CREG_H_ |
---|
36 | |
---|
37 | #define I2C_REG_SlaveAddr 0xc000 |
---|
38 | #define I2C_REG_ExtSlaveAddr 0xc010 |
---|
39 | #define I2C_REG_Data 0xc004 |
---|
40 | #define I2C_REG_Control 0xc008 |
---|
41 | #define I2C_REG_Status 0xc00c |
---|
42 | #define I2C_REG_BaudRate 0xc00c |
---|
43 | #define I2C_REG_SoftReset 0xc01c |
---|
44 | |
---|
45 | #define I2C_SlaveAddr_GCE 0x0001 /* Act as Slave */ |
---|
46 | #define I2C_SlaveAddr_SAddr 0x7E |
---|
47 | |
---|
48 | #define I2C_Control_ACK 0x04 |
---|
49 | #define I2C_Control_IFlg 0x08 |
---|
50 | #define I2C_Control_Stop 0x10 |
---|
51 | #define I2C_Control_Start 0x20 |
---|
52 | #define I2C_Control_TWSIEn 0x40 |
---|
53 | #define I2C_Control_IntEn 0x80 |
---|
54 | |
---|
55 | /* |
---|
56 | * F(I2C) = F(Tclk) / ( 10 * (M + 1) * (2^(N+1))) |
---|
57 | * For Tclk = 100MHz, M = 4, N = 4: F = 62.5KHz |
---|
58 | * For Tclk = 100MHz, M = 13, N = 3: F = 96.2KHz |
---|
59 | */ |
---|
60 | #define I2C_BaudRate(M, N) (((M) << 3) | (N)) |
---|
61 | #define I2C_BaudRate_62_5K I2C_BaudRate(4, 4) |
---|
62 | #define I2C_BaudRate_96_2K I2C_BaudRate(13, 3) |
---|
63 | |
---|
64 | #define I2C_Status_BusError 0x00 /* Bus error */ |
---|
65 | #define I2C_Status_Started 0x08 /* Start condition xmitted */ |
---|
66 | #define I2C_Status_ReStarted 0x10 /* Repeated start condition xmitted */ |
---|
67 | #define I2C_Status_AddrWriteAck 0x18 /* Adr + wr bit xmtd, ack rcvd */ |
---|
68 | #define I2C_Status_AddrWriteNoAck 0x20 /* Adr + wr bit xmtd, NO ack rcvd */ |
---|
69 | #define I2C_Status_MasterWriteAck 0x28 /* Master xmtd data byte, ack rcvd */ |
---|
70 | #define I2C_Status_MasterWriteNoAck 0x30 /* Master xmtd data byte, NO ack rcvd*/ |
---|
71 | #define I2C_Status_MasterLostArb 0x38 /* Master lost arbitration during |
---|
72 | address or data transfer */ |
---|
73 | #define I2C_Status_AddrReadAck 0x40 /* Adr + rd bit xmtd, ack rcvd */ |
---|
74 | #define I2C_Status_AddrReadNoAck 0x48 /* Adr + rd bit xmtd, NO ack rcvd */ |
---|
75 | #define I2C_Status_MasterReadAck 0x50 /* Master rcvd data bye, ack rcvd */ |
---|
76 | #define I2C_Status_MasterReadNoAck 0x58 /* Master rcvd data bye, NO ack rcvd */ |
---|
77 | #define I2C_Status_2ndAddrWriteAck 0xd0 /* 2nd adr + wr bit xmid, ack rcvd */ |
---|
78 | #define I2C_Status_2ndAddrWriteNoAck 0xd8 /* 2nd adr + wr bit xmid, NO ack rcvd */ |
---|
79 | #define I2C_Status_2ndAddrReadAck 0xe0 /* 2nd adr + rd bit xmid, ack rcvd */ |
---|
80 | #define I2C_Status_2ndAddrReadNoAck 0xe8 /* 2nd adr + rd bit xmtd, NO ack rcvd */ |
---|
81 | #define I2C_Status_Idle 0xf8 /* Idle */ |
---|
82 | |
---|
83 | #endif /* _DEV_MARVELL_GTI2CREG_H_ */ |
---|