1 /* include/mal.h, openbios_walnut, walnut_bios 8/6/99 08:48:40 */
3 * SPDX-License-Identifier: GPL-2.0 IBM-pibs
5 /*----------------------------------------------------------------------------+
9 | Function: Header file for the MAL (MADMAL) macro on the 405GP.
15 | Date Description of Change BY
16 | --------- --------------------- ---
17 | 29-Apr-99 Created MKW
19 +----------------------------------------------------------------------------*/
20 /*----------------------------------------------------------------------------+
21 | 17-Nov-03 Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com
22 | Added register bit definitions to support multiple channels
23 +----------------------------------------------------------------------------*/
27 #if !defined(MAL_DCR_BASE)
28 #define MAL_DCR_BASE 0x180
30 #define MAL0_CFG (MAL_DCR_BASE + 0x00) /* MAL Config reg */
31 #define MAL0_ESR (MAL_DCR_BASE + 0x01) /* Error Status (Read/Clear) */
32 #define MAL0_IER (MAL_DCR_BASE + 0x02) /* Interrupt enable */
33 #define MAL0_TXCASR (MAL_DCR_BASE + 0x04) /* TX Channel active (set) */
34 #define MAL0_TXCARR (MAL_DCR_BASE + 0x05) /* TX Channel active (reset) */
35 #define MAL0_TXEOBISR (MAL_DCR_BASE + 0x06) /* TX End of buffer int status*/
36 #define MAL0_TXDEIR (MAL_DCR_BASE + 0x07) /* TX Descr. Error Int */
37 #define MAL0_TXBADDR (MAL_DCR_BASE + 0x09) /* TX descriptor base addr*/
38 #define MAL0_RXCASR (MAL_DCR_BASE + 0x10) /* RX Channel active (set) */
39 #define MAL0_RXCARR (MAL_DCR_BASE + 0x11) /* RX Channel active (reset) */
40 #define MAL0_RXEOBISR (MAL_DCR_BASE + 0x12) /* RX End of buffer int status*/
41 #define MAL0_RXDEIR (MAL_DCR_BASE + 0x13) /* RX Descr. Error Int */
42 #define MAL0_RXBADDR (MAL_DCR_BASE + 0x15) /* RX descriptor base addr */
43 #define MAL0_TXCTP0R (MAL_DCR_BASE + 0x20) /* TX 0 Channel table pointer */
44 #define MAL0_TXCTP1R (MAL_DCR_BASE + 0x21) /* TX 1 Channel table pointer */
45 #define MAL0_TXCTP2R (MAL_DCR_BASE + 0x22) /* TX 2 Channel table pointer */
46 #define MAL0_TXCTP3R (MAL_DCR_BASE + 0x23) /* TX 3 Channel table pointer */
47 #define MAL0_RXCTP0R (MAL_DCR_BASE + 0x40) /* RX 0 Channel table pointer */
48 #define MAL0_RXCTP1R (MAL_DCR_BASE + 0x41) /* RX 1 Channel table pointer */
49 #define MAL0_RCBS0 (MAL_DCR_BASE + 0x60) /* RX 0 Channel buffer size */
50 #define MAL0_RCBS1 (MAL_DCR_BASE + 0x61) /* RX 1 Channel buffer size */
51 #if defined(CONFIG_440GX) || \
52 defined(CONFIG_460EX) || defined(CONFIG_460GT)
53 #define MAL0_RXCTP2R (MAL_DCR_BASE + 0x42) /* RX 2 Channel table pointer */
54 #define MAL0_RXCTP3R (MAL_DCR_BASE + 0x43) /* RX 3 Channel table pointer */
55 #define MAL0_RXCTP8R (MAL_DCR_BASE + 0x48) /* RX 8 Channel table pointer */
56 #define MAL0_RXCTP16R (MAL_DCR_BASE + 0x50) /* RX 16 Channel table pointer*/
57 #define MAL0_RXCTP24R (MAL_DCR_BASE + 0x58) /* RX 24 Channel table pointer*/
58 #define MAL0_RCBS2 (MAL_DCR_BASE + 0x62) /* RX 2 Channel buffer size */
59 #define MAL0_RCBS3 (MAL_DCR_BASE + 0x63) /* RX 3 Channel buffer size */
60 #define MAL0_RCBS8 (MAL_DCR_BASE + 0x68) /* RX 8 Channel buffer size */
61 #define MAL0_RCBS16 (MAL_DCR_BASE + 0x70) /* RX 16 Channel buffer size */
62 #define MAL0_RCBS24 (MAL_DCR_BASE + 0x78) /* RX 24 Channel buffer size */
63 #endif /* CONFIG_440GX */
65 /* MADMAL transmit and receive status/control bits */
66 /* for COMMAC bits, refer to the COMMAC header file */
68 #define MAL_TX_CTRL_READY 0x8000
69 #define MAL_TX_CTRL_WRAP 0x4000
70 #define MAL_TX_CTRL_CM 0x2000
71 #define MAL_TX_CTRL_LAST 0x1000
72 #define MAL_TX_CTRL_INTR 0x0400
74 #define MAL_RX_CTRL_EMPTY 0x8000
75 #define MAL_RX_CTRL_WRAP 0x4000
76 #define MAL_RX_CTRL_CM 0x2000
77 #define MAL_RX_CTRL_LAST 0x1000
78 #define MAL_RX_CTRL_FIRST 0x0800
79 #define MAL_RX_CTRL_INTR 0x0400
81 /* Configuration Reg */
82 #define MAL_CR_MMSR 0x80000000
83 #define MAL_CR_PLBP_1 0x00400000 /* lowsest is 00 */
84 #define MAL_CR_PLBP_2 0x00800000
85 #define MAL_CR_PLBP_3 0x00C00000 /* highest */
86 #define MAL_CR_GA 0x00200000
87 #define MAL_CR_OA 0x00100000
88 #define MAL_CR_PLBLE 0x00080000
89 #define MAL_CR_PLBLT_1 0x00040000
90 #define MAL_CR_PLBLT_2 0x00020000
91 #define MAL_CR_PLBLT_3 0x00010000
92 #define MAL_CR_PLBLT_4 0x00008000
93 #define MAL_CR_PLBLT_DEFAULT 0x00078000 /* ????? */
94 #define MAL_CR_PLBB 0x00004000
95 #define MAL_CR_OPBBL 0x00000080
96 #define MAL_CR_EOPIE 0x00000004
97 #define MAL_CR_LEA 0x00000002
98 #define MAL_CR_MSD 0x00000001
100 /* Error Status Reg */
101 #define MAL_ESR_EVB 0x80000000
102 #define MAL_ESR_CID 0x40000000
103 #define MAL_ESR_DE 0x00100000
104 #define MAL_ESR_ONE 0x00080000
105 #define MAL_ESR_OTE 0x00040000
106 #define MAL_ESR_OSE 0x00020000
107 #define MAL_ESR_PEIN 0x00010000
108 /* same bit position as the IER */
110 #define MAL_ESR_DEI 0x00000010
111 #define MAL_ESR_ONEI 0x00000008
112 #define MAL_ESR_OTEI 0x00000004
113 #define MAL_ESR_OSEI 0x00000002
114 #define MAL_ESR_PBEI 0x00000001
117 #if defined(CONFIG_440SPE) || \
118 defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
119 defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
120 defined(CONFIG_405EX)
121 #define MAL_IER_PT 0x00000080
122 #define MAL_IER_PRE 0x00000040
123 #define MAL_IER_PWE 0x00000020
124 #define MAL_IER_DE 0x00000010
125 #define MAL_IER_OTE 0x00000004
126 #define MAL_IER_OE 0x00000002
127 #define MAL_IER_PE 0x00000001
129 #define MAL_IER_DE 0x00000010
130 #define MAL_IER_NE 0x00000008
131 #define MAL_IER_TE 0x00000004
132 #define MAL_IER_OPBE 0x00000002
133 #define MAL_IER_PLBE 0x00000001
136 /* MAL Channel Active Set and Reset Registers */
137 #define MAL_TXRX_CASR (0x80000000)
139 #define MAL_TXRX_CASR_V(__x) (__x) /* Channel 0 shifts 0, channel 1 shifts 1, etc */
142 /* MAL Buffer Descriptor structure */
144 short ctrl; /* MAL / Commac status control bits */
145 short data_len; /* Max length is 4K-1 (12 bits) */
146 char *data_ptr; /* pointer to actual data buffer */