aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/include/asm/ppc4xx-mal.h
blob: 71986856b15595e1f2a664adbfffc6ad485c79d8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
/* include/mal.h, openbios_walnut, walnut_bios 8/6/99 08:48:40 */
/*----------------------------------------------------------------------------+
|   This source code is dual-licensed.  You may use it under the terms of the
|   GNU General Public License version 2, or under the license below.
|
|	This source code has been made available to you by IBM on an AS-IS
|	basis.	Anyone receiving this source is licensed under IBM
|	copyrights to use it in any way he or she deems fit, including
|	copying it, modifying it, compiling it, and redistributing it either
|	with or without modifications.	No license under IBM patents or
|	patent applications is to be implied by the copyright license.
|
|	Any user of this software should understand that IBM cannot provide
|	technical support for this software and will not be responsible for
|	any consequences resulting from the use of this software.
|
|	Any person who transfers this source code or any derivative work
|	must include the IBM copyright notice, this paragraph, and the
|	preceding two paragraphs in the transferred software.
|
|	COPYRIGHT   I B M   CORPORATION 1999
|	LICENSED MATERIAL  -  PROGRAM PROPERTY OF I B M
+----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------+
|
|  File Name:	mal.h
|
|  Function:	Header file for the MAL (MADMAL) macro on the 405GP.
|
|  Author:	Mark Wisner
|
|  Change Activity-
|
|  Date	       Description of Change					   BY
|  ---------   ---------------------					   ---
|  29-Apr-99   Created							   MKW
|
+----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------+
|  17-Nov-03  Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com
|	      Added register bit definitions to support multiple channels
+----------------------------------------------------------------------------*/
#ifndef _mal_h_
#define _mal_h_

#if !defined(MAL_DCR_BASE)
#define MAL_DCR_BASE	0x180
#endif
#define MAL0_CFG	(MAL_DCR_BASE + 0x00)	/* MAL Config reg	*/
#define MAL0_ESR	(MAL_DCR_BASE + 0x01)	/* Error Status (Read/Clear) */
#define MAL0_IER	(MAL_DCR_BASE + 0x02)	/* Interrupt enable */
#define MAL0_TXCASR	(MAL_DCR_BASE + 0x04)	/* TX Channel active (set) */
#define MAL0_TXCARR	(MAL_DCR_BASE + 0x05)	/* TX Channel active (reset) */
#define MAL0_TXEOBISR	(MAL_DCR_BASE + 0x06)	/* TX End of buffer int status*/
#define MAL0_TXDEIR	(MAL_DCR_BASE + 0x07)	/* TX Descr. Error Int */
#define MAL0_TXBADDR	(MAL_DCR_BASE + 0x09)	/* TX descriptor base addr*/
#define MAL0_RXCASR	(MAL_DCR_BASE + 0x10)	/* RX Channel active (set) */
#define MAL0_RXCARR	(MAL_DCR_BASE + 0x11)	/* RX Channel active (reset) */
#define MAL0_RXEOBISR	(MAL_DCR_BASE + 0x12)	/* RX End of buffer int status*/
#define MAL0_RXDEIR	(MAL_DCR_BASE + 0x13)	/* RX Descr. Error Int */
#define MAL0_RXBADDR	(MAL_DCR_BASE + 0x15)	/* RX descriptor base addr */
#define MAL0_TXCTP0R	(MAL_DCR_BASE + 0x20)	/* TX 0 Channel table pointer */
#define MAL0_TXCTP1R	(MAL_DCR_BASE + 0x21)	/* TX 1 Channel table pointer */
#define MAL0_TXCTP2R	(MAL_DCR_BASE + 0x22)	/* TX 2 Channel table pointer */
#define MAL0_TXCTP3R	(MAL_DCR_BASE + 0x23)	/* TX 3 Channel table pointer */
#define MAL0_RXCTP0R	(MAL_DCR_BASE + 0x40)	/* RX 0 Channel table pointer */
#define MAL0_RXCTP1R	(MAL_DCR_BASE + 0x41)	/* RX 1 Channel table pointer */
#define MAL0_RCBS0	(MAL_DCR_BASE + 0x60)	/* RX 0 Channel buffer size */
#define MAL0_RCBS1	(MAL_DCR_BASE + 0x61)	/* RX 1 Channel buffer size */
#if defined(CONFIG_440GX) || \
    defined(CONFIG_460EX) || defined(CONFIG_460GT)
#define MAL0_RXCTP2R	(MAL_DCR_BASE + 0x42)	/* RX 2 Channel table pointer */
#define MAL0_RXCTP3R	(MAL_DCR_BASE + 0x43)	/* RX 3 Channel table pointer */
#define MAL0_RXCTP8R	(MAL_DCR_BASE + 0x48)	/* RX 8 Channel table pointer */
#define MAL0_RXCTP16R	(MAL_DCR_BASE + 0x50)	/* RX 16 Channel table pointer*/
#define MAL0_RXCTP24R	(MAL_DCR_BASE + 0x58)	/* RX 24 Channel table pointer*/
#define MAL0_RCBS2	(MAL_DCR_BASE + 0x62)	/* RX 2 Channel buffer size */
#define MAL0_RCBS3	(MAL_DCR_BASE + 0x63)	/* RX 3 Channel buffer size */
#define MAL0_RCBS8	(MAL_DCR_BASE + 0x68)	/* RX 8 Channel buffer size */
#define MAL0_RCBS16	(MAL_DCR_BASE + 0x70)	/* RX 16 Channel buffer size */
#define MAL0_RCBS24	(MAL_DCR_BASE + 0x78)	/* RX 24 Channel buffer size */
#endif /* CONFIG_440GX */

/* MADMAL transmit and receive status/control bits  */
/* for COMMAC bits, refer to the COMMAC header file */

#define MAL_TX_CTRL_READY 0x8000
#define MAL_TX_CTRL_WRAP  0x4000
#define MAL_TX_CTRL_CM	  0x2000
#define MAL_TX_CTRL_LAST  0x1000
#define MAL_TX_CTRL_INTR  0x0400

#define MAL_RX_CTRL_EMPTY 0x8000
#define MAL_RX_CTRL_WRAP  0x4000
#define MAL_RX_CTRL_CM	  0x2000
#define MAL_RX_CTRL_LAST  0x1000
#define MAL_RX_CTRL_FIRST 0x0800
#define MAL_RX_CTRL_INTR  0x0400

      /* Configuration Reg  */
#define MAL_CR_MMSR	  0x80000000
#define MAL_CR_PLBP_1	  0x00400000   /* lowsest is 00 */
#define MAL_CR_PLBP_2	  0x00800000
#define MAL_CR_PLBP_3	  0x00C00000   /* highest	*/
#define MAL_CR_GA	  0x00200000
#define MAL_CR_OA	  0x00100000
#define MAL_CR_PLBLE	  0x00080000
#define MAL_CR_PLBLT_1	0x00040000
#define MAL_CR_PLBLT_2	0x00020000
#define MAL_CR_PLBLT_3	0x00010000
#define MAL_CR_PLBLT_4	0x00008000
#define MAL_CR_PLBLT_DEFAULT 0x00078000 /* ????? */
#define MAL_CR_PLBB	  0x00004000
#define MAL_CR_OPBBL	  0x00000080
#define MAL_CR_EOPIE	  0x00000004
#define MAL_CR_LEA	  0x00000002
#define MAL_CR_MSD	  0x00000001

    /* Error Status Reg	   */
#define MAL_ESR_EVB	  0x80000000
#define MAL_ESR_CID	  0x40000000
#define MAL_ESR_DE	  0x00100000
#define MAL_ESR_ONE	  0x00080000
#define MAL_ESR_OTE	  0x00040000
#define MAL_ESR_OSE	  0x00020000
#define MAL_ESR_PEIN	  0x00010000
      /* same bit position as the IER */
      /* VV			 VV   */
#define MAL_ESR_DEI	  0x00000010
#define MAL_ESR_ONEI	  0x00000008
#define MAL_ESR_OTEI	  0x00000004
#define MAL_ESR_OSEI	  0x00000002
#define MAL_ESR_PBEI	  0x00000001
      /* ^^			 ^^   */
      /* Mal IER		      */
#if defined(CONFIG_440SPE) || \
    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
    defined(CONFIG_405EX)
#define MAL_IER_PT	  0x00000080
#define MAL_IER_PRE	  0x00000040
#define MAL_IER_PWE	  0x00000020
#define MAL_IER_DE	  0x00000010
#define MAL_IER_OTE	  0x00000004
#define MAL_IER_OE	  0x00000002
#define MAL_IER_PE	  0x00000001
#else
#define MAL_IER_DE	  0x00000010
#define MAL_IER_NE	  0x00000008
#define MAL_IER_TE	  0x00000004
#define MAL_IER_OPBE	  0x00000002
#define MAL_IER_PLBE	  0x00000001
#endif

/* MAL Channel Active Set and Reset Registers */
#define MAL_TXRX_CASR	(0x80000000)

#define MAL_TXRX_CASR_V(__x)  (__x)  /* Channel 0 shifts 0, channel 1 shifts 1, etc */


/* MAL Buffer Descriptor structure */
typedef struct {
  short	 ctrl;		    /* MAL / Commac status control bits */
  short	 data_len;	    /* Max length is 4K-1 (12 bits)	*/
  char	*data_ptr;	    /* pointer to actual data buffer	*/
} mal_desc_t;

#endif