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Diffstat (limited to 'include/asm-m68knommu/mcfdma.h')
-rw-r--r-- | include/asm-m68knommu/mcfdma.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/include/asm-m68knommu/mcfdma.h b/include/asm-m68knommu/mcfdma.h new file mode 100644 index 000000000000..350c6090b5c1 --- /dev/null +++ b/include/asm-m68knommu/mcfdma.h | |||
@@ -0,0 +1,145 @@ | |||
1 | /****************************************************************************/ | ||
2 | |||
3 | /* | ||
4 | * mcfdma.h -- Coldfire internal DMA support defines. | ||
5 | * | ||
6 | * (C) Copyright 1999, Rob Scott (rscott@mtrob.ml.org) | ||
7 | */ | ||
8 | |||
9 | /****************************************************************************/ | ||
10 | #ifndef mcfdma_h | ||
11 | #define mcfdma_h | ||
12 | /****************************************************************************/ | ||
13 | |||
14 | #include <linux/config.h> | ||
15 | |||
16 | /* | ||
17 | * Get address specific defines for this Coldfire member. | ||
18 | */ | ||
19 | #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) | ||
20 | #define MCFDMA_BASE0 0x200 /* Base address of DMA 0 */ | ||
21 | #define MCFDMA_BASE1 0x240 /* Base address of DMA 1 */ | ||
22 | #elif defined(CONFIG_M5272) | ||
23 | #define MCFDMA_BASE0 0x0e0 /* Base address of DMA 0 */ | ||
24 | #elif defined(CONFIG_M527x) || defined(CONFIG_M528x) | ||
25 | /* These are relative to the IPSBAR, not MBAR */ | ||
26 | #define MCFDMA_BASE0 0x100 /* Base address of DMA 0 */ | ||
27 | #define MCFDMA_BASE1 0x140 /* Base address of DMA 1 */ | ||
28 | #define MCFDMA_BASE2 0x180 /* Base address of DMA 2 */ | ||
29 | #define MCFDMA_BASE3 0x1C0 /* Base address of DMA 3 */ | ||
30 | #elif defined(CONFIG_M5249) || defined(CONFIG_M5307) || defined(CONFIG_M5407) | ||
31 | #define MCFDMA_BASE0 0x300 /* Base address of DMA 0 */ | ||
32 | #define MCFDMA_BASE1 0x340 /* Base address of DMA 1 */ | ||
33 | #define MCFDMA_BASE2 0x380 /* Base address of DMA 2 */ | ||
34 | #define MCFDMA_BASE3 0x3C0 /* Base address of DMA 3 */ | ||
35 | #endif | ||
36 | |||
37 | |||
38 | #if !defined(CONFIG_M5272) | ||
39 | |||
40 | /* | ||
41 | * Define the DMA register set addresses. | ||
42 | * Note: these are longword registers, use unsigned long as data type | ||
43 | */ | ||
44 | #define MCFDMA_SAR 0x00 /* DMA source address (r/w) */ | ||
45 | #define MCFDMA_DAR 0x01 /* DMA destination adr (r/w) */ | ||
46 | /* these are word registers, use unsigned short data type */ | ||
47 | #define MCFDMA_DCR 0x04 /* DMA control reg (r/w) */ | ||
48 | #define MCFDMA_BCR 0x06 /* DMA byte count reg (r/w) */ | ||
49 | /* these are byte registers, use unsiged char data type */ | ||
50 | #define MCFDMA_DSR 0x10 /* DMA status reg (r/w) */ | ||
51 | #define MCFDMA_DIVR 0x14 /* DMA interrupt vec (r/w) */ | ||
52 | |||
53 | /* | ||
54 | * Bit definitions for the DMA Control Register (DCR). | ||
55 | */ | ||
56 | #define MCFDMA_DCR_INT 0x8000 /* Enable completion irq */ | ||
57 | #define MCFDMA_DCR_EEXT 0x4000 /* Enable external DMA req */ | ||
58 | #define MCFDMA_DCR_CS 0x2000 /* Enable cycle steal */ | ||
59 | #define MCFDMA_DCR_AA 0x1000 /* Enable auto alignment */ | ||
60 | #define MCFDMA_DCR_BWC_MASK 0x0E00 /* Bandwidth ctl mask */ | ||
61 | #define MCFDMA_DCR_BWC_512 0x0200 /* Bandwidth: 512 Bytes */ | ||
62 | #define MCFDMA_DCR_BWC_1024 0x0400 /* Bandwidth: 1024 Bytes */ | ||
63 | #define MCFDMA_DCR_BWC_2048 0x0600 /* Bandwidth: 2048 Bytes */ | ||
64 | #define MCFDMA_DCR_BWC_4096 0x0800 /* Bandwidth: 4096 Bytes */ | ||
65 | #define MCFDMA_DCR_BWC_8192 0x0a00 /* Bandwidth: 8192 Bytes */ | ||
66 | #define MCFDMA_DCR_BWC_16384 0x0c00 /* Bandwidth: 16384 Bytes */ | ||
67 | #define MCFDMA_DCR_BWC_32768 0x0e00 /* Bandwidth: 32768 Bytes */ | ||
68 | #define MCFDMA_DCR_SAA 0x0100 /* Single Address Access */ | ||
69 | #define MCFDMA_DCR_S_RW 0x0080 /* SAA read/write value */ | ||
70 | #define MCFDMA_DCR_SINC 0x0040 /* Source addr inc enable */ | ||
71 | #define MCFDMA_DCR_SSIZE_MASK 0x0030 /* Src xfer size */ | ||
72 | #define MCFDMA_DCR_SSIZE_LONG 0x0000 /* Src xfer size, 00 = longw */ | ||
73 | #define MCFDMA_DCR_SSIZE_BYTE 0x0010 /* Src xfer size, 01 = byte */ | ||
74 | #define MCFDMA_DCR_SSIZE_WORD 0x0020 /* Src xfer size, 10 = word */ | ||
75 | #define MCFDMA_DCR_SSIZE_LINE 0x0030 /* Src xfer size, 11 = line */ | ||
76 | #define MCFDMA_DCR_DINC 0x0008 /* Dest addr inc enable */ | ||
77 | #define MCFDMA_DCR_DSIZE_MASK 0x0006 /* Dest xfer size */ | ||
78 | #define MCFDMA_DCR_DSIZE_LONG 0x0000 /* Dest xfer size, 00 = long */ | ||
79 | #define MCFDMA_DCR_DSIZE_BYTE 0x0002 /* Dest xfer size, 01 = byte */ | ||
80 | #define MCFDMA_DCR_DSIZE_WORD 0x0004 /* Dest xfer size, 10 = word */ | ||
81 | #define MCFDMA_DCR_DSIZE_LINE 0x0006 /* Dest xfer size, 11 = line */ | ||
82 | #define MCFDMA_DCR_START 0x0001 /* Start transfer */ | ||
83 | |||
84 | /* | ||
85 | * Bit definitions for the DMA Status Register (DSR). | ||
86 | */ | ||
87 | #define MCFDMA_DSR_CE 0x40 /* Config error */ | ||
88 | #define MCFDMA_DSR_BES 0x20 /* Bus Error on source */ | ||
89 | #define MCFDMA_DSR_BED 0x10 /* Bus Error on dest */ | ||
90 | #define MCFDMA_DSR_REQ 0x04 /* Requests remaining */ | ||
91 | #define MCFDMA_DSR_BSY 0x02 /* Busy */ | ||
92 | #define MCFDMA_DSR_DONE 0x01 /* DMA transfer complete */ | ||
93 | |||
94 | #else /* This is an MCF5272 */ | ||
95 | |||
96 | #define MCFDMA_DMR 0x00 /* Mode Register (r/w) */ | ||
97 | #define MCFDMA_DIR 0x03 /* Interrupt trigger register (r/w) */ | ||
98 | #define MCFDMA_DSAR 0x03 /* Source Address register (r/w) */ | ||
99 | #define MCFDMA_DDAR 0x04 /* Destination Address register (r/w) */ | ||
100 | #define MCFDMA_DBCR 0x02 /* Byte Count Register (r/w) */ | ||
101 | |||
102 | /* Bit definitions for the DMA Mode Register (DMR) */ | ||
103 | #define MCFDMA_DMR_RESET 0x80000000L /* Reset bit */ | ||
104 | #define MCFDMA_DMR_EN 0x40000000L /* DMA enable */ | ||
105 | #define MCFDMA_DMR_RQM 0x000C0000L /* Request Mode Mask */ | ||
106 | #define MCFDMA_DMR_RQM_DUAL 0x000C0000L /* Dual address mode, the only valid mode */ | ||
107 | #define MCFDMA_DMR_DSTM 0x00002000L /* Destination addressing mask */ | ||
108 | #define MCFDMA_DMR_DSTM_SA 0x00000000L /* Destination uses static addressing */ | ||
109 | #define MCFDMA_DMR_DSTM_IA 0x00002000L /* Destination uses incremental addressing */ | ||
110 | #define MCFDMA_DMR_DSTT_UD 0x00000400L /* Destination is user data */ | ||
111 | #define MCFDMA_DMR_DSTT_UC 0x00000800L /* Destination is user code */ | ||
112 | #define MCFDMA_DMR_DSTT_SD 0x00001400L /* Destination is supervisor data */ | ||
113 | #define MCFDMA_DMR_DSTT_SC 0x00001800L /* Destination is supervisor code */ | ||
114 | #define MCFDMA_DMR_DSTS_OFF 0x8 /* offset to the destination size bits */ | ||
115 | #define MCFDMA_DMR_DSTS_LONG 0x00000000L /* Long destination size */ | ||
116 | #define MCFDMA_DMR_DSTS_BYTE 0x00000100L /* Byte destination size */ | ||
117 | #define MCFDMA_DMR_DSTS_WORD 0x00000200L /* Word destination size */ | ||
118 | #define MCFDMA_DMR_DSTS_LINE 0x00000300L /* Line destination size */ | ||
119 | #define MCFDMA_DMR_SRCM 0x00000020L /* Source addressing mask */ | ||
120 | #define MCFDMA_DMR_SRCM_SA 0x00000000L /* Source uses static addressing */ | ||
121 | #define MCFDMA_DMR_SRCM_IA 0x00000020L /* Source uses incremental addressing */ | ||
122 | #define MCFDMA_DMR_SRCT_UD 0x00000004L /* Source is user data */ | ||
123 | #define MCFDMA_DMR_SRCT_UC 0x00000008L /* Source is user code */ | ||
124 | #define MCFDMA_DMR_SRCT_SD 0x00000014L /* Source is supervisor data */ | ||
125 | #define MCFDMA_DMR_SRCT_SC 0x00000018L /* Source is supervisor code */ | ||
126 | #define MCFDMA_DMR_SRCS_OFF 0x0 /* Offset to the source size bits */ | ||
127 | #define MCFDMA_DMR_SRCS_LONG 0x00000000L /* Long source size */ | ||
128 | #define MCFDMA_DMR_SRCS_BYTE 0x00000001L /* Byte source size */ | ||
129 | #define MCFDMA_DMR_SRCS_WORD 0x00000002L /* Word source size */ | ||
130 | #define MCFDMA_DMR_SRCS_LINE 0x00000003L /* Line source size */ | ||
131 | |||
132 | /* Bit definitions for the DMA interrupt register (DIR) */ | ||
133 | #define MCFDMA_DIR_INVEN 0x1000 /* Invalid Combination interrupt enable */ | ||
134 | #define MCFDMA_DIR_ASCEN 0x0800 /* Address Sequence Complete (Completion) interrupt enable */ | ||
135 | #define MCFDMA_DIR_TEEN 0x0200 /* Transfer Error interrupt enable */ | ||
136 | #define MCFDMA_DIR_TCEN 0x0100 /* Transfer Complete (a bus transfer, that is) interrupt enable */ | ||
137 | #define MCFDMA_DIR_INV 0x1000 /* Invalid Combination */ | ||
138 | #define MCFDMA_DIR_ASC 0x0008 /* Address Sequence Complete (DMA Completion) */ | ||
139 | #define MCFDMA_DIR_TE 0x0002 /* Transfer Error */ | ||
140 | #define MCFDMA_DIR_TC 0x0001 /* Transfer Complete */ | ||
141 | |||
142 | #endif /* !defined(CONFIG_M5272) */ | ||
143 | |||
144 | /****************************************************************************/ | ||
145 | #endif /* mcfdma_h */ | ||