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1/* include/mal.h, openbios_walnut, walnut_bios 8/6/99 08:48:40 */
2/*----------------------------------------------------------------------------+
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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.
4a5b6a35 5|
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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.
4a5b6a35 12|
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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.
4a5b6a35 16|
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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.
4a5b6a35 20|
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21| COPYRIGHT I B M CORPORATION 1999
22| LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
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23+----------------------------------------------------------------------------*/
24/*----------------------------------------------------------------------------+
25|
ba56f625 26| File Name: mal.h
4a5b6a35 27|
ba56f625 28| Function: Header file for the MAL (MADMAL) macro on the 405GP.
4a5b6a35 29|
ba56f625 30| Author: Mark Wisner
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31|
32| Change Activity-
33|
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34| Date Description of Change BY
35| --------- --------------------- ---
36| 29-Apr-99 Created MKW
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37|
38+----------------------------------------------------------------------------*/
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39/*----------------------------------------------------------------------------+
40| 17-Nov-03 Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com
41| Added register bit definitions to support multiple channels
42+----------------------------------------------------------------------------*/
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43#ifndef _mal_h_
44#define _mal_h_
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45
46#if !defined(MAL_DCR_BASE)
47#define MAL_DCR_BASE 0x180
48#endif
49#define MAL0_CFG (MAL_DCR_BASE + 0x00) /* MAL Config reg */
50#define MAL0_ESR (MAL_DCR_BASE + 0x01) /* Error Status (Read/Clear) */
51#define MAL0_IER (MAL_DCR_BASE + 0x02) /* Interrupt enable */
52#define MAL0_TXCASR (MAL_DCR_BASE + 0x04) /* TX Channel active (set) */
53#define MAL0_TXCARR (MAL_DCR_BASE + 0x05) /* TX Channel active (reset) */
54#define MAL0_TXEOBISR (MAL_DCR_BASE + 0x06) /* TX End of buffer int status*/
55#define MAL0_TXDEIR (MAL_DCR_BASE + 0x07) /* TX Descr. Error Int */
56#define MAL0_TXBADDR (MAL_DCR_BASE + 0x09) /* TX descriptor base addr*/
57#define MAL0_RXCASR (MAL_DCR_BASE + 0x10) /* RX Channel active (set) */
58#define MAL0_RXCARR (MAL_DCR_BASE + 0x11) /* RX Channel active (reset) */
59#define MAL0_RXEOBISR (MAL_DCR_BASE + 0x12) /* RX End of buffer int status*/
60#define MAL0_RXDEIR (MAL_DCR_BASE + 0x13) /* RX Descr. Error Int */
61#define MAL0_RXBADDR (MAL_DCR_BASE + 0x15) /* RX descriptor base addr */
62#define MAL0_TXCTP0R (MAL_DCR_BASE + 0x20) /* TX 0 Channel table pointer */
63#define MAL0_TXCTP1R (MAL_DCR_BASE + 0x21) /* TX 1 Channel table pointer */
64#define MAL0_TXCTP2R (MAL_DCR_BASE + 0x22) /* TX 2 Channel table pointer */
65#define MAL0_TXCTP3R (MAL_DCR_BASE + 0x23) /* TX 3 Channel table pointer */
66#define MAL0_RXCTP0R (MAL_DCR_BASE + 0x40) /* RX 0 Channel table pointer */
67#define MAL0_RXCTP1R (MAL_DCR_BASE + 0x41) /* RX 1 Channel table pointer */
68#define MAL0_RCBS0 (MAL_DCR_BASE + 0x60) /* RX 0 Channel buffer size */
69#define MAL0_RCBS1 (MAL_DCR_BASE + 0x61) /* RX 1 Channel buffer size */
70#if defined(CONFIG_440GX) || \
71 defined(CONFIG_460EX) || defined(CONFIG_460GT)
72#define MAL0_RXCTP2R (MAL_DCR_BASE + 0x42) /* RX 2 Channel table pointer */
73#define MAL0_RXCTP3R (MAL_DCR_BASE + 0x43) /* RX 3 Channel table pointer */
74#define MAL0_RXCTP8R (MAL_DCR_BASE + 0x48) /* RX 8 Channel table pointer */
75#define MAL0_RXCTP16R (MAL_DCR_BASE + 0x50) /* RX 16 Channel table pointer*/
76#define MAL0_RXCTP24R (MAL_DCR_BASE + 0x58) /* RX 24 Channel table pointer*/
77#define MAL0_RCBS2 (MAL_DCR_BASE + 0x62) /* RX 2 Channel buffer size */
78#define MAL0_RCBS3 (MAL_DCR_BASE + 0x63) /* RX 3 Channel buffer size */
79#define MAL0_RCBS8 (MAL_DCR_BASE + 0x68) /* RX 8 Channel buffer size */
80#define MAL0_RCBS16 (MAL_DCR_BASE + 0x70) /* RX 16 Channel buffer size */
81#define MAL0_RCBS24 (MAL_DCR_BASE + 0x78) /* RX 24 Channel buffer size */
82#endif /* CONFIG_440GX */
83
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84/* MADMAL transmit and receive status/control bits */
85/* for COMMAC bits, refer to the COMMAC header file */
86
87#define MAL_TX_CTRL_READY 0x8000
88#define MAL_TX_CTRL_WRAP 0x4000
ba56f625 89#define MAL_TX_CTRL_CM 0x2000
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90#define MAL_TX_CTRL_LAST 0x1000
91#define MAL_TX_CTRL_INTR 0x0400
92
93#define MAL_RX_CTRL_EMPTY 0x8000
94#define MAL_RX_CTRL_WRAP 0x4000
95#define MAL_RX_CTRL_CM 0x2000
96#define MAL_RX_CTRL_LAST 0x1000
97#define MAL_RX_CTRL_FIRST 0x0800
98#define MAL_RX_CTRL_INTR 0x0400
99
100 /* Configuration Reg */
101#define MAL_CR_MMSR 0x80000000
102#define MAL_CR_PLBP_1 0x00400000 /* lowsest is 00 */
103#define MAL_CR_PLBP_2 0x00800000
ba56f625 104#define MAL_CR_PLBP_3 0x00C00000 /* highest */
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105#define MAL_CR_GA 0x00200000
106#define MAL_CR_OA 0x00100000
107#define MAL_CR_PLBLE 0x00080000
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108#define MAL_CR_PLBLT_1 0x00040000
109#define MAL_CR_PLBLT_2 0x00020000
110#define MAL_CR_PLBLT_3 0x00010000
111#define MAL_CR_PLBLT_4 0x00008000
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112#define MAL_CR_PLBLT_DEFAULT 0x00078000 /* ????? */
113#define MAL_CR_PLBB 0x00004000
114#define MAL_CR_OPBBL 0x00000080
115#define MAL_CR_EOPIE 0x00000004
116#define MAL_CR_LEA 0x00000002
117#define MAL_CR_MSD 0x00000001
118
ba56f625 119 /* Error Status Reg */
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120#define MAL_ESR_EVB 0x80000000
121#define MAL_ESR_CID 0x40000000
122#define MAL_ESR_DE 0x00100000
123#define MAL_ESR_ONE 0x00080000
124#define MAL_ESR_OTE 0x00040000
125#define MAL_ESR_OSE 0x00020000
126#define MAL_ESR_PEIN 0x00010000
127 /* same bit position as the IER */
ba56f625 128 /* VV VV */
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129#define MAL_ESR_DEI 0x00000010
130#define MAL_ESR_ONEI 0x00000008
131#define MAL_ESR_OTEI 0x00000004
132#define MAL_ESR_OSEI 0x00000002
133#define MAL_ESR_PBEI 0x00000001
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134 /* ^^ ^^ */
135 /* Mal IER */
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136#if defined(CONFIG_440SPE) || \
137 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
999ecd5a 138 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
dbbd1257 139 defined(CONFIG_405EX)
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140#define MAL_IER_PT 0x00000080
141#define MAL_IER_PRE 0x00000040
142#define MAL_IER_PWE 0x00000020
143#define MAL_IER_DE 0x00000010
144#define MAL_IER_OTE 0x00000004
145#define MAL_IER_OE 0x00000002
146#define MAL_IER_PE 0x00000001
147#else
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148#define MAL_IER_DE 0x00000010
149#define MAL_IER_NE 0x00000008
150#define MAL_IER_TE 0x00000004
151#define MAL_IER_OPBE 0x00000002
152#define MAL_IER_PLBE 0x00000001
6c5879f3 153#endif
4a5b6a35 154
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155/* MAL Channel Active Set and Reset Registers */
156#define MAL_TXRX_CASR (0x80000000)
157
158#define MAL_TXRX_CASR_V(__x) (__x) /* Channel 0 shifts 0, channel 1 shifts 1, etc */
159
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160
161/* MAL Buffer Descriptor structure */
162typedef struct {
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163 short ctrl; /* MAL / Commac status control bits */
164 short data_len; /* Max length is 4K-1 (12 bits) */
165 char *data_ptr; /* pointer to actual data buffer */
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166} mal_desc_t;
167
168#endif