| 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 |