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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: esrserdes_l0mon.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 | `timescale 1ps/1ps | |
36 | ||
37 | module esrserdes_l0mon (); | |
38 | ||
39 | reg enabled; | |
40 | reg serdes_mon; | |
41 | reg mac0_l0_d; | |
42 | reg mac1_l0_d; | |
43 | initial | |
44 | begin | |
45 | enabled = 1'b1; | |
46 | serdes_mon = 1'b1; | |
47 | if ($test$plusargs("fsrserdes_l0mon_disable")) begin | |
48 | serdes_mon = 1'b0; | |
49 | enabled = 1'b0; | |
50 | end | |
51 | end | |
52 | ||
53 | wire flush_reset_complete = `TOP.flush_reset_complete; | |
54 | ||
55 | always @ (flush_reset_complete) | |
56 | begin | |
57 | if (flush_reset_complete == 1'b0) | |
58 | enabled = 1'b0; | |
59 | ||
60 | if ((flush_reset_complete == 1'b1) && serdes_mon) | |
61 | enabled = 1'b1; | |
62 | end | |
63 | //-------------------------------------------------------------------------------------- | |
64 | wire mac0_l0link = `CPU.xaui_link_led_0; | |
65 | wire mac1_l0link = `CPU.xaui_link_led_1; | |
66 | ||
67 | wire mac0_l0_ltoh = mac0_l0link & ~mac0_l0_d; | |
68 | wire mac0_l0_htol = ~mac0_l0link & mac0_l0_d; | |
69 | ||
70 | wire mac1_l0_ltoh = mac1_l0link & ~mac1_l0_d; | |
71 | wire mac1_l0_htol = ~mac1_l0link & mac1_l0_d; | |
72 | ||
73 | always @(posedge (`CPU.mac.niu_clk & enabled)) | |
74 | begin | |
75 | mac0_l0_d <= mac0_l0link; | |
76 | mac1_l0_d <= mac1_l0link; | |
77 | ||
78 | if (mac0_l0_ltoh) | |
79 | `PR_NORMAL("mac0_l0mon", `NORMAL, "MAC0 L0 LINK is up" ); | |
80 | if (mac1_l0_ltoh) | |
81 | `PR_NORMAL("mac1_l0mon", `NORMAL, "MAC1 L0 LINK is up" ); | |
82 | ||
83 | if (mac0_l0_htol) | |
84 | `PR_INFO("mac0_l0mon", `INFO, "MAC0 L0 LINK HAS LOST SYNC"); | |
85 | if (mac1_l0_htol) | |
86 | `PR_INFO("mac1_l0mon", `INFO, "MAC1 L0 LINK HAS LOST SYNC"); | |
87 | end | |
88 | ||
89 | //if (`TOP.info===1'b1) $dispmon("NCU_MON", `INFO," NIU->NCU:: TYPE %0h; THR_ID %0h; PA = %0h; DATA = %0h;", i2c_pkt[3:0], i2c_pkt[9:4], i2c_pkt[54:15], i2c_pkt[127:64] ); | |
90 | //`CPU.peu.l2t_etp_link | |
91 | ||
92 | endmodule |