1 /* $NetBSD: qecreg.h,v 1.4 2009/09/19 11:53:42 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1998 Theo de Raadt and Jason L. Wright. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. The name of the authors may not be used to endorse or promote products 45 * derived from this software without specific prior written permission. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 50 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 53 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 54 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 57 */ 58 59 /* 60 * QEC registers layout 61 */ 62 #if 0 63 struct qecregs { 64 uint32_t qec_ctrl; /* control */ 65 uint32_t qec_stat; /* status */ 66 uint32_t qec_psize; /* packet size */ 67 uint32_t qec_msize; /* local-mem size (64K) */ 68 uint32_t qec_rsize; /* receive partition size */ 69 uint32_t qec_tsize; /* transmit partition size */ 70 }; 71 #endif 72 #define QEC_QRI_CTRL (0*4) 73 #define QEC_QRI_STAT (1*4) 74 #define QEC_QRI_PSIZE (2*4) 75 #define QEC_QRI_MSIZE (3*4) 76 #define QEC_QRI_RSIZE (4*4) 77 #define QEC_QRI_TSIZE (5*4) 78 79 #define QEC_CTRL_MODEMASK 0xf0000000 /* QEC mode: */ 80 #define QEC_CTRL_MMODE 0x40000000 /* MACE qec mode */ 81 #define QEC_CTRL_BMODE 0x10000000 /* BE qec mode */ 82 #define QEC_CTRL_EPAR 0x00000020 /* enable parity */ 83 #define QEC_CTRL_ACNTRL 0x00000018 /* sbus arbitration control */ 84 #define QEC_CTRL_B64 0x00000004 /* 64 byte dvma bursts */ 85 #define QEC_CTRL_B32 0x00000002 /* 32 byte dvma bursts */ 86 #define QEC_CTRL_B16 0x00000000 /* 16 byte dvma bursts */ 87 #define QEC_CTRL_RESET 0x00000001 /* reset the qec */ 88 89 #define QEC_STAT_TX 0x00000008 /* bigmac transmit irq */ 90 #define QEC_STAT_RX 0x00000004 /* bigmac receive irq */ 91 #define QEC_STAT_BM 0x00000002 /* bigmac qec irq */ 92 #define QEC_STAT_ER 0x00000001 /* bigmac error irq */ 93 94 #define QEC_PSIZE_2048 0x00 /* 2k packet size */ 95 #define QEC_PSIZE_4096 0x01 /* 4k packet size */ 96 #define QEC_PSIZE_6144 0x10 /* 6k packet size */ 97 #define QEC_PSIZE_8192 0x11 /* 8k packet size */ 98 99 100 101 /* 102 * Transmit & receive buffer descriptor. 103 */ 104 struct qec_xd { 105 volatile uint32_t xd_flags; /* see below */ 106 volatile uint32_t xd_addr; /* Buffer address (DMA) */ 107 }; 108 #define QEC_XD_OWN 0x80000000 /* ownership: 1=hw, 0=sw */ 109 #define QEC_XD_SOP 0x40000000 /* start of packet marker (xmit) */ 110 #define QEC_XD_EOP 0x20000000 /* end of packet marker (xmit) */ 111 #define QEC_XD_UPDATE 0x10000000 /* being updated? */ 112 #define QEC_XD_LENGTH 0x00001fff /* packet length mask */ 113 /* Descriptor ring size is fixed */ 114 #define QEC_XD_RING_MAXSIZE 256 /* maximum ring size */ 115