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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: niu_txc_meta_resp_ifc.v | |
4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
6 | // | |
7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
8 | // | |
9 | // This program is free software; you can redistribute it and/or modify | |
10 | // it under the terms of the GNU General Public License as published by | |
11 | // the Free Software Foundation; version 2 of the License. | |
12 | // | |
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | // | |
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | // | |
22 | // For the avoidance of doubt, and except that if any non-GPL license | |
23 | // choice is available it will apply instead, Sun elects to use only | |
24 | // the General Public License version 2 (GPLv2) at this time for any | |
25 | // software where a choice of GPL license versions is made | |
26 | // available with the language indicating that GPLv2 or any later version | |
27 | // may be used, or where a choice of which version of the GPL is applied is | |
28 | // otherwise unspecified. | |
29 | // | |
30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
31 | // CA 95054 USA or visit www.sun.com if you need additional information or | |
32 | // have any questions. | |
33 | // | |
34 | // ========== Copyright Header End ============================================ | |
35 | /********************************************************************* | |
36 | * | |
37 | * niu_txc_meta_resp_ifc.v | |
38 | * | |
39 | * Meta Interface Logic | |
40 | * | |
41 | * Orignal Author(s): Rahoul Puri | |
42 | * Modifier(s): | |
43 | * Project(s): Neptune | |
44 | * | |
45 | * Copyright (c) 2005 Sun Microsystems, Inc. | |
46 | * | |
47 | * All Rights Reserved. | |
48 | * | |
49 | * This verilog model is the confidential and proprietary property of | |
50 | * Sun Microsystems, Inc., and the possession or use of this model | |
51 | * requires a written license from Sun Microsystems, Inc. | |
52 | * | |
53 | **********************************************************************/ | |
54 | ||
55 | `include "timescale.v" | |
56 | ||
57 | module niu_txc_meta_resp_ifc ( | |
58 | SysClk, // Clock | |
59 | Reset_L, // Reset_L | |
60 | meta_dmc_resp_ready, | |
61 | meta_dmc_resp_complete, | |
62 | meta_dmc_resp_transfer_cmpl, | |
63 | meta_dmc_data_valid, | |
64 | meta_dmc_resp_client, | |
65 | meta_dmc_resp_port_num, | |
66 | meta_dmc_resp_cmd_status, | |
67 | meta_dmc_resp_data_status, | |
68 | meta_dmc_resp_dma_num, | |
69 | meta_dmc_resp_transID, | |
70 | meta_dmc_resp_cmd, | |
71 | meta_dmc_resp_byteenable, | |
72 | meta_dmc_resp_length, | |
73 | meta_dmc_resp_address, | |
74 | meta_dmc_data, | |
75 | dmc_meta_resp_accept, | |
76 | Port0_TXC_DMC_Resp_Accept, | |
77 | Port1_TXC_DMC_Resp_Accept, | |
78 | Port2_TXC_DMC_Resp_Accept, | |
79 | Port3_TXC_DMC_Resp_Accept, | |
80 | DMC_TXC_Resp_Rdy, | |
81 | DMC_TXC_Resp_Complete, | |
82 | DMC_TXC_Trans_Complete, | |
83 | DMC_TXC_Resp_Data_Valid, | |
84 | DMC_TXC_Resp_Client, | |
85 | DMC_TXC_Resp_Port_Num, | |
86 | DMC_TXC_Resp_Cmd_Status, | |
87 | DMC_TXC_Resp_Data_Status, | |
88 | DMC_TXC_Resp_DMA_Num, | |
89 | DMC_TXC_Resp_TransID, | |
90 | DMC_TXC_Resp_Cmd, | |
91 | DMC_TXC_Resp_Data_Length, | |
92 | DMC_TXC_Resp_ByteEnables, | |
93 | DMC_TXC_Resp_Address, | |
94 | DMC_TXC_Resp_Data | |
95 | ); | |
96 | ||
97 | `include "txc_defines.h" | |
98 | ||
99 | // MAC Global Signals | |
100 | input SysClk; | |
101 | input Reset_L; | |
102 | ||
103 | // Meta Response Interface | |
104 | input meta_dmc_resp_ready; | |
105 | input meta_dmc_resp_complete; | |
106 | input meta_dmc_resp_transfer_cmpl; | |
107 | input meta_dmc_data_valid; | |
108 | input meta_dmc_resp_client; | |
109 | input [1:0] meta_dmc_resp_port_num; | |
110 | input [3:0] meta_dmc_resp_cmd_status; | |
111 | input [3:0] meta_dmc_resp_data_status; | |
112 | input [4:0] meta_dmc_resp_dma_num; | |
113 | input [5:0] meta_dmc_resp_transID; | |
114 | input [7:0] meta_dmc_resp_cmd; | |
115 | input [13:0] meta_dmc_resp_length; | |
116 | input [15:0] meta_dmc_resp_byteenable; | |
117 | input [63:0] meta_dmc_resp_address; | |
118 | input [127:0] meta_dmc_data; | |
119 | ||
120 | output dmc_meta_resp_accept; | |
121 | ||
122 | reg dmc_meta_resp_accept; | |
123 | ||
124 | // NIU Internal Response Interface | |
125 | input Port0_TXC_DMC_Resp_Accept; | |
126 | input Port1_TXC_DMC_Resp_Accept; | |
127 | input Port2_TXC_DMC_Resp_Accept; | |
128 | input Port3_TXC_DMC_Resp_Accept; | |
129 | ||
130 | output DMC_TXC_Resp_Rdy; | |
131 | output DMC_TXC_Resp_Complete; | |
132 | output DMC_TXC_Trans_Complete; | |
133 | output DMC_TXC_Resp_Data_Valid; | |
134 | output DMC_TXC_Resp_Client; | |
135 | output [1:0] DMC_TXC_Resp_Port_Num; | |
136 | output [3:0] DMC_TXC_Resp_Cmd_Status; | |
137 | output [3:0] DMC_TXC_Resp_Data_Status; | |
138 | output [4:0] DMC_TXC_Resp_DMA_Num; | |
139 | output [5:0] DMC_TXC_Resp_TransID; | |
140 | output [7:0] DMC_TXC_Resp_Cmd; | |
141 | output [13:0] DMC_TXC_Resp_Data_Length; | |
142 | output [15:0] DMC_TXC_Resp_ByteEnables; | |
143 | output [63:0] DMC_TXC_Resp_Address; | |
144 | output [127:0] DMC_TXC_Resp_Data; | |
145 | ||
146 | reg DMC_TXC_Resp_Data_Valid; | |
147 | reg [3:0] DMC_TXC_Resp_Data_Status; | |
148 | reg [13:0] DMC_TXC_Resp_Data_Length; | |
149 | reg [15:0] DMC_TXC_Resp_ByteEnables; | |
150 | reg [127:0] DMC_TXC_Resp_Data; | |
151 | ||
152 | /*--------------------------------------------------------------*/ | |
153 | // Reg & Wires | |
154 | /*--------------------------------------------------------------*/ | |
155 | ||
156 | /*--------------------------------------------------------------*/ | |
157 | // Assigns CMD Phase | |
158 | /*--------------------------------------------------------------*/ | |
159 | assign DMC_TXC_Resp_Rdy = meta_dmc_resp_ready; | |
160 | assign DMC_TXC_Resp_Complete = meta_dmc_resp_complete; | |
161 | assign DMC_TXC_Trans_Complete = meta_dmc_resp_transfer_cmpl; | |
162 | assign DMC_TXC_Resp_Client = meta_dmc_resp_client; | |
163 | assign DMC_TXC_Resp_Port_Num = meta_dmc_resp_port_num; | |
164 | assign DMC_TXC_Resp_Cmd_Status = meta_dmc_resp_cmd_status; | |
165 | assign DMC_TXC_Resp_DMA_Num = meta_dmc_resp_dma_num; | |
166 | assign DMC_TXC_Resp_TransID = meta_dmc_resp_transID; | |
167 | assign DMC_TXC_Resp_Cmd = meta_dmc_resp_cmd; | |
168 | assign DMC_TXC_Resp_Address = meta_dmc_resp_address; | |
169 | ||
170 | ||
171 | /*--------------------------------------------------------------*/ | |
172 | // Logic Cmd Phase | |
173 | /*--------------------------------------------------------------*/ | |
174 | always @(posedge SysClk) | |
175 | if (!Reset_L) | |
176 | dmc_meta_resp_accept <= #`SD 1'b0; | |
177 | else | |
178 | dmc_meta_resp_accept <= #`SD (Port3_TXC_DMC_Resp_Accept | |
179 | | | |
180 | Port2_TXC_DMC_Resp_Accept | |
181 | | | |
182 | Port1_TXC_DMC_Resp_Accept | |
183 | | | |
184 | Port0_TXC_DMC_Resp_Accept); | |
185 | ||
186 | /*--------------------------------------------------------------*/ | |
187 | // Logic Data Phase | |
188 | /*--------------------------------------------------------------*/ | |
189 | always @(posedge SysClk) | |
190 | if (!Reset_L) DMC_TXC_Resp_Data_Valid <= #`SD 1'b0; | |
191 | else DMC_TXC_Resp_Data_Valid <= #`SD meta_dmc_data_valid; | |
192 | ||
193 | always @(posedge SysClk) | |
194 | if (!Reset_L) DMC_TXC_Resp_Data_Status <= #`SD 4'h0; | |
195 | else DMC_TXC_Resp_Data_Status <= #`SD meta_dmc_resp_data_status; | |
196 | ||
197 | always @(posedge SysClk) | |
198 | if (!Reset_L) DMC_TXC_Resp_Data_Length <= #`SD 14'h0; | |
199 | else DMC_TXC_Resp_Data_Length <= #`SD meta_dmc_resp_length; | |
200 | ||
201 | always @(posedge SysClk) | |
202 | if (!Reset_L) DMC_TXC_Resp_ByteEnables <= #`SD 16'h0; | |
203 | else DMC_TXC_Resp_ByteEnables <= #`SD meta_dmc_resp_byteenable; | |
204 | ||
205 | always @(posedge SysClk) | |
206 | if (!Reset_L) DMC_TXC_Resp_Data <= #`SD 128'h0; | |
207 | else DMC_TXC_Resp_Data <= #`SD meta_dmc_data; | |
208 | ||
209 | endmodule |