1 /* include/mal.h, openbios_walnut, walnut_bios 8/6/99 08:48:40 */ 2 /*----------------------------------------------------------------------------+ 3 | This source code is dual-licensed. You may use it under the terms of the 4 | GNU General Public License version 2, or under the license below. 5 | 6 | This source code has been made available to you by IBM on an AS-IS 7 | basis. Anyone receiving this source is licensed under IBM 8 | copyrights to use it in any way he or she deems fit, including 9 | copying it, modifying it, compiling it, and redistributing it either 10 | with or without modifications. No license under IBM patents or 11 | patent applications is to be implied by the copyright license. 12 | 13 | Any user of this software should understand that IBM cannot provide 14 | technical support for this software and will not be responsible for 15 | any consequences resulting from the use of this software. 16 | 17 | Any person who transfers this source code or any derivative work 18 | must include the IBM copyright notice, this paragraph, and the 19 | preceding two paragraphs in the transferred software. 20 | 21 | COPYRIGHT I B M CORPORATION 1999 22 | LICENSED MATERIAL - PROGRAM PROPERTY OF I B M 23 +----------------------------------------------------------------------------*/ 24 /*----------------------------------------------------------------------------+ 25 | 26 | File Name: mal.h 27 | 28 | Function: Header file for the MAL (MADMAL) macro on the 405GP. 29 | 30 | Author: Mark Wisner 31 | 32 | Change Activity- 33 | 34 | Date Description of Change BY 35 | --------- --------------------- --- 36 | 29-Apr-99 Created MKW 37 | 38 +----------------------------------------------------------------------------*/ 39 /*----------------------------------------------------------------------------+ 40 | 17-Nov-03 Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com 41 | Added register bit definitions to support multiple channels 42 +----------------------------------------------------------------------------*/ 43 #ifndef _mal_h_ 44 #define _mal_h_ 45 /* MADMAL transmit and receive status/control bits */ 46 /* for COMMAC bits, refer to the COMMAC header file */ 47 48 #define MAL_TX_CTRL_READY 0x8000 49 #define MAL_TX_CTRL_WRAP 0x4000 50 #define MAL_TX_CTRL_CM 0x2000 51 #define MAL_TX_CTRL_LAST 0x1000 52 #define MAL_TX_CTRL_INTR 0x0400 53 54 #define MAL_RX_CTRL_EMPTY 0x8000 55 #define MAL_RX_CTRL_WRAP 0x4000 56 #define MAL_RX_CTRL_CM 0x2000 57 #define MAL_RX_CTRL_LAST 0x1000 58 #define MAL_RX_CTRL_FIRST 0x0800 59 #define MAL_RX_CTRL_INTR 0x0400 60 61 /* Configuration Reg */ 62 #define MAL_CR_MMSR 0x80000000 63 #define MAL_CR_PLBP_1 0x00400000 /* lowsest is 00 */ 64 #define MAL_CR_PLBP_2 0x00800000 65 #define MAL_CR_PLBP_3 0x00C00000 /* highest */ 66 #define MAL_CR_GA 0x00200000 67 #define MAL_CR_OA 0x00100000 68 #define MAL_CR_PLBLE 0x00080000 69 #define MAL_CR_PLBLT_1 0x00040000 70 #define MAL_CR_PLBLT_2 0x00020000 71 #define MAL_CR_PLBLT_3 0x00010000 72 #define MAL_CR_PLBLT_4 0x00008000 73 #define MAL_CR_PLBLT_DEFAULT 0x00078000 /* ????? */ 74 #define MAL_CR_PLBB 0x00004000 75 #define MAL_CR_OPBBL 0x00000080 76 #define MAL_CR_EOPIE 0x00000004 77 #define MAL_CR_LEA 0x00000002 78 #define MAL_CR_MSD 0x00000001 79 80 /* Error Status Reg */ 81 #define MAL_ESR_EVB 0x80000000 82 #define MAL_ESR_CID 0x40000000 83 #define MAL_ESR_DE 0x00100000 84 #define MAL_ESR_ONE 0x00080000 85 #define MAL_ESR_OTE 0x00040000 86 #define MAL_ESR_OSE 0x00020000 87 #define MAL_ESR_PEIN 0x00010000 88 /* same bit position as the IER */ 89 /* VV VV */ 90 #define MAL_ESR_DEI 0x00000010 91 #define MAL_ESR_ONEI 0x00000008 92 #define MAL_ESR_OTEI 0x00000004 93 #define MAL_ESR_OSEI 0x00000002 94 #define MAL_ESR_PBEI 0x00000001 95 /* ^^ ^^ */ 96 /* Mal IER */ 97 #if defined(CONFIG_440SPE) || \ 98 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ 99 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ 100 defined(CONFIG_405EX) 101 #define MAL_IER_PT 0x00000080 102 #define MAL_IER_PRE 0x00000040 103 #define MAL_IER_PWE 0x00000020 104 #define MAL_IER_DE 0x00000010 105 #define MAL_IER_OTE 0x00000004 106 #define MAL_IER_OE 0x00000002 107 #define MAL_IER_PE 0x00000001 108 #else 109 #define MAL_IER_DE 0x00000010 110 #define MAL_IER_NE 0x00000008 111 #define MAL_IER_TE 0x00000004 112 #define MAL_IER_OPBE 0x00000002 113 #define MAL_IER_PLBE 0x00000001 114 #endif 115 116 /* MAL Channel Active Set and Reset Registers */ 117 #define MAL_TXRX_CASR (0x80000000) 118 119 #define MAL_TXRX_CASR_V(__x) (__x) /* Channel 0 shifts 0, channel 1 shifts 1, etc */ 120 121 122 /* MAL Buffer Descriptor structure */ 123 typedef struct { 124 short ctrl; /* MAL / Commac status control bits */ 125 short data_len; /* Max length is 4K-1 (12 bits) */ 126 char *data_ptr; /* pointer to actual data buffer */ 127 } mal_desc_t; 128 129 #endif 130