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3a95b9fb | 1 | /* include/linux/amba/pl080.h |
fa7a7883 BD |
2 | * |
3 | * Copyright 2008 Openmoko, Inc. | |
4 | * Copyright 2008 Simtec Electronics | |
5 | * http://armlinux.simtec.co.uk/ | |
6 | * Ben Dooks <ben@simtec.co.uk> | |
7 | * | |
8 | * ARM PrimeCell PL080 DMA controller | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | /* Note, there are some Samsung updates to this controller block which | |
16 | * make it not entierly compatible with the PL080 specification from | |
17 | * ARM. When in doubt, check the Samsung documentation first. | |
18 | * | |
25985edc | 19 | * The Samsung defines are PL080S, and add an extra control register, |
fa7a7883 BD |
20 | * the ability to move more than 2^11 counts of data and some extra |
21 | * OneNAND features. | |
22 | */ | |
23 | ||
47850a27 VK |
24 | #ifndef ASM_PL080_H |
25 | #define ASM_PL080_H | |
26 | ||
fa7a7883 BD |
27 | #define PL080_INT_STATUS (0x00) |
28 | #define PL080_TC_STATUS (0x04) | |
29 | #define PL080_TC_CLEAR (0x08) | |
30 | #define PL080_ERR_STATUS (0x0C) | |
31 | #define PL080_ERR_CLEAR (0x10) | |
32 | #define PL080_RAW_TC_STATUS (0x14) | |
33 | #define PL080_RAW_ERR_STATUS (0x18) | |
34 | #define PL080_EN_CHAN (0x1c) | |
35 | #define PL080_SOFT_BREQ (0x20) | |
36 | #define PL080_SOFT_SREQ (0x24) | |
37 | #define PL080_SOFT_LBREQ (0x28) | |
38 | #define PL080_SOFT_LSREQ (0x2C) | |
39 | ||
40 | #define PL080_CONFIG (0x30) | |
41 | #define PL080_CONFIG_M2_BE (1 << 2) | |
42 | #define PL080_CONFIG_M1_BE (1 << 1) | |
43 | #define PL080_CONFIG_ENABLE (1 << 0) | |
44 | ||
45 | #define PL080_SYNC (0x34) | |
46 | ||
47 | /* Per channel configuration registers */ | |
48 | ||
d92342df | 49 | #define PL080_Cx_STRIDE (0x20) |
fa7a7883 BD |
50 | #define PL080_Cx_BASE(x) ((0x100 + (x * 0x20))) |
51 | #define PL080_Cx_SRC_ADDR(x) ((0x100 + (x * 0x20))) | |
52 | #define PL080_Cx_DST_ADDR(x) ((0x104 + (x * 0x20))) | |
53 | #define PL080_Cx_LLI(x) ((0x108 + (x * 0x20))) | |
54 | #define PL080_Cx_CONTROL(x) ((0x10C + (x * 0x20))) | |
55 | #define PL080_Cx_CONFIG(x) ((0x110 + (x * 0x20))) | |
56 | #define PL080S_Cx_CONTROL2(x) ((0x110 + (x * 0x20))) | |
57 | #define PL080S_Cx_CONFIG(x) ((0x114 + (x * 0x20))) | |
58 | ||
59 | #define PL080_CH_SRC_ADDR (0x00) | |
60 | #define PL080_CH_DST_ADDR (0x04) | |
61 | #define PL080_CH_LLI (0x08) | |
62 | #define PL080_CH_CONTROL (0x0C) | |
63 | #define PL080_CH_CONFIG (0x10) | |
64 | #define PL080S_CH_CONTROL2 (0x10) | |
65 | #define PL080S_CH_CONFIG (0x14) | |
66 | ||
67 | #define PL080_LLI_ADDR_MASK (0x3fffffff << 2) | |
68 | #define PL080_LLI_ADDR_SHIFT (2) | |
69 | #define PL080_LLI_LM_AHB2 (1 << 0) | |
70 | ||
71 | #define PL080_CONTROL_TC_IRQ_EN (1 << 31) | |
72 | #define PL080_CONTROL_PROT_MASK (0x7 << 28) | |
73 | #define PL080_CONTROL_PROT_SHIFT (28) | |
d92342df LW |
74 | #define PL080_CONTROL_PROT_CACHE (1 << 30) |
75 | #define PL080_CONTROL_PROT_BUFF (1 << 29) | |
fa7a7883 BD |
76 | #define PL080_CONTROL_PROT_SYS (1 << 28) |
77 | #define PL080_CONTROL_DST_INCR (1 << 27) | |
78 | #define PL080_CONTROL_SRC_INCR (1 << 26) | |
79 | #define PL080_CONTROL_DST_AHB2 (1 << 25) | |
80 | #define PL080_CONTROL_SRC_AHB2 (1 << 24) | |
81 | #define PL080_CONTROL_DWIDTH_MASK (0x7 << 21) | |
82 | #define PL080_CONTROL_DWIDTH_SHIFT (21) | |
83 | #define PL080_CONTROL_SWIDTH_MASK (0x7 << 18) | |
84 | #define PL080_CONTROL_SWIDTH_SHIFT (18) | |
85 | #define PL080_CONTROL_DB_SIZE_MASK (0x7 << 15) | |
86 | #define PL080_CONTROL_DB_SIZE_SHIFT (15) | |
87 | #define PL080_CONTROL_SB_SIZE_MASK (0x7 << 12) | |
88 | #define PL080_CONTROL_SB_SIZE_SHIFT (12) | |
89 | #define PL080_CONTROL_TRANSFER_SIZE_MASK (0xfff << 0) | |
90 | #define PL080_CONTROL_TRANSFER_SIZE_SHIFT (0) | |
91 | ||
92 | #define PL080_BSIZE_1 (0x0) | |
93 | #define PL080_BSIZE_4 (0x1) | |
94 | #define PL080_BSIZE_8 (0x2) | |
95 | #define PL080_BSIZE_16 (0x3) | |
96 | #define PL080_BSIZE_32 (0x4) | |
97 | #define PL080_BSIZE_64 (0x5) | |
98 | #define PL080_BSIZE_128 (0x6) | |
99 | #define PL080_BSIZE_256 (0x7) | |
100 | ||
101 | #define PL080_WIDTH_8BIT (0x0) | |
102 | #define PL080_WIDTH_16BIT (0x1) | |
103 | #define PL080_WIDTH_32BIT (0x2) | |
104 | ||
affa115e LW |
105 | #define PL080N_CONFIG_ITPROT (1 << 20) |
106 | #define PL080N_CONFIG_SECPROT (1 << 19) | |
fa7a7883 BD |
107 | #define PL080_CONFIG_HALT (1 << 18) |
108 | #define PL080_CONFIG_ACTIVE (1 << 17) /* RO */ | |
109 | #define PL080_CONFIG_LOCK (1 << 16) | |
110 | #define PL080_CONFIG_TC_IRQ_MASK (1 << 15) | |
111 | #define PL080_CONFIG_ERR_IRQ_MASK (1 << 14) | |
112 | #define PL080_CONFIG_FLOW_CONTROL_MASK (0x7 << 11) | |
113 | #define PL080_CONFIG_FLOW_CONTROL_SHIFT (11) | |
114 | #define PL080_CONFIG_DST_SEL_MASK (0xf << 6) | |
115 | #define PL080_CONFIG_DST_SEL_SHIFT (6) | |
116 | #define PL080_CONFIG_SRC_SEL_MASK (0xf << 1) | |
117 | #define PL080_CONFIG_SRC_SEL_SHIFT (1) | |
118 | #define PL080_CONFIG_ENABLE (1 << 0) | |
119 | ||
120 | #define PL080_FLOW_MEM2MEM (0x0) | |
121 | #define PL080_FLOW_MEM2PER (0x1) | |
122 | #define PL080_FLOW_PER2MEM (0x2) | |
123 | #define PL080_FLOW_SRC2DST (0x3) | |
124 | #define PL080_FLOW_SRC2DST_DST (0x4) | |
125 | #define PL080_FLOW_MEM2PER_PER (0x5) | |
126 | #define PL080_FLOW_PER2MEM_PER (0x6) | |
127 | #define PL080_FLOW_SRC2DST_SRC (0x7) | |
128 | ||
129 | /* DMA linked list chain structure */ | |
130 | ||
131 | struct pl080_lli { | |
132 | u32 src_addr; | |
133 | u32 dst_addr; | |
134 | u32 next_lli; | |
135 | u32 control0; | |
136 | }; | |
137 | ||
138 | struct pl080s_lli { | |
139 | u32 src_addr; | |
140 | u32 dst_addr; | |
141 | u32 next_lli; | |
142 | u32 control0; | |
143 | u32 control1; | |
144 | }; | |
145 | ||
47850a27 | 146 | #endif /* ASM_PL080_H */ |