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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: niu_rxdmc_init.vr | |
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 | #include "niu_rxdmc.vrh" | |
36 | ||
37 | extern CRDMC rdmc; | |
38 | class niu_rxdmc_init_class { | |
39 | ||
40 | task new() { | |
41 | rxdmc_init(); | |
42 | } | |
43 | ||
44 | task rxdmc_init(); | |
45 | } | |
46 | ||
47 | task niu_rxdmc_init_class::rxdmc_init() { | |
48 | shadow integer n; | |
49 | shadow integer i; | |
50 | integer dma_chnl, desc_ring_length,compl_ring_len,initial_kick; | |
51 | integer blk_size,buf_siz0,buf_siz1,buf_siz2,vld0,vld1,vld2; | |
52 | bit [63:0] rbr_config_B_data; | |
53 | ||
54 | ||
55 | if (get_plus_arg (CHECK, "LOOP_BACK_RXDMA_CHNL")) | |
56 | dma_chnl = (get_plus_arg (NUM, "LOOP_BACK_RXDMA_CHNL"))%16; | |
57 | else | |
58 | dma_chnl = 0 ; | |
59 | ||
60 | if (get_plus_arg (CHECK,"RX_BLKSZ")) | |
61 | blk_size = get_plus_arg(NUM,"RX_BLKSZ"); | |
62 | else | |
63 | blk_size = 4; | |
64 | if (get_plus_arg (CHECK,"RX_BUF_SIZ0")) | |
65 | buf_siz0 = get_plus_arg(NUM,"RX_BUF_SIZ0"); | |
66 | else | |
67 | buf_siz0 = 256; | |
68 | if (get_plus_arg (CHECK,"RX_BUF_SIZ1")) | |
69 | buf_siz1 = get_plus_arg(NUM,"RX_BUF_SIZ1"); | |
70 | else | |
71 | buf_siz1 = 1024; | |
72 | if (get_plus_arg (CHECK,"RX_BUF_SIZ2")) | |
73 | buf_siz2 = get_plus_arg(NUM,"RX_BUF_SIZ2"); | |
74 | else | |
75 | buf_siz2 = 2048; | |
76 | if (get_plus_arg (CHECK,"VLD0")) | |
77 | vld0 = get_plus_arg(NUM,"VLD0"); | |
78 | else | |
79 | vld0 = 1; | |
80 | if (get_plus_arg (CHECK,"VLD1")) | |
81 | vld1 = get_plus_arg(NUM,"VLD1"); | |
82 | else | |
83 | vld1 = 1; | |
84 | if (get_plus_arg (CHECK,"VLD2")) | |
85 | vld2 = get_plus_arg(NUM,"VLD2"); | |
86 | else | |
87 | vld2 = 1; | |
88 | ||
89 | rbr_config_B_data[63:26]= 0; | |
90 | rbr_config_B_data[22:18]= 0; | |
91 | rbr_config_B_data[14:10]= 0; | |
92 | rbr_config_B_data[6:2]= 0; | |
93 | ||
94 | case(blk_size) { | |
95 | 4: rbr_config_B_data[25:24] = 2'b00; | |
96 | 8: rbr_config_B_data[25:24] = 2'b01; | |
97 | 16: rbr_config_B_data[25:24] = 2'b10; | |
98 | 32: rbr_config_B_data[25:24] = 2'b11; | |
99 | } | |
100 | rbr_config_B_data[23] = vld2; //VLD2 | |
101 | rbr_config_B_data[17:16] = 2'b00; | |
102 | case(buf_siz2) { | |
103 | 2048: rbr_config_B_data[17:16] = 2'b00; | |
104 | 4096: rbr_config_B_data[17:16] = 2'b01; | |
105 | 8192: rbr_config_B_data[17:16] = 2'b10; | |
106 | 16384: rbr_config_B_data[17:16] = 2'b11; | |
107 | } | |
108 | rbr_config_B_data[15] = vld1; //VLD1 | |
109 | rbr_config_B_data[9:8] = 2'b00; | |
110 | case(buf_siz1) { | |
111 | 1024: rbr_config_B_data[9:8] = 2'b00; | |
112 | 2048: rbr_config_B_data[9:8] = 2'b01; | |
113 | 4096: rbr_config_B_data[9:8] = 2'b10; | |
114 | 8192: rbr_config_B_data[9:8] = 2'b11; | |
115 | } | |
116 | rbr_config_B_data[7] = vld0; //VLD0 | |
117 | case(buf_siz0) { | |
118 | 256: rbr_config_B_data[1:0] = 2'b00; | |
119 | 512: rbr_config_B_data[1:0] = 2'b01; | |
120 | 1024: rbr_config_B_data[1:0] = 2'b10; | |
121 | 2048: rbr_config_B_data[1:0] = 2'b11; | |
122 | } | |
123 | ||
124 | // ################################################################################################### | |
125 | // ################################################################################################### | |
126 | // ################################################################################################### | |
127 | // One single function to initialize the whole RXDMA channel | |
128 | // This function should be called for each RXDMA channel you want to initialize | |
129 | desc_ring_length = 16'h1fff; | |
130 | compl_ring_len = 16'h2000; | |
131 | initial_kick = 16'h00ff; | |
132 | rdmc.InitRXDMA(dma_chnl, desc_ring_length, compl_ring_len, rbr_config_B_data, initial_kick); | |
133 | ||
134 | } |