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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
d351ec84 | 2 | /* |
d074aeb8 HS |
3 | * Stuff for AMCC S5933 PCI Controller |
4 | * | |
5 | * Author: Michal Dobes <dobes@tesnet.cz> | |
6 | * | |
7 | * Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver | |
8 | * made by Andrea Cisternino <acister@pcape1.pi.infn.it> | |
9 | * and as result of espionage from MITE code made by David A. Schleef. | |
10 | * Thanks to AMCC for their on-line documentation and bus master DMA | |
11 | * example. | |
12 | */ | |
d351ec84 MD |
13 | |
14 | #ifndef _AMCC_S5933_H_ | |
15 | #define _AMCC_S5933_H_ | |
16 | ||
17 | /****************************************************************************/ | |
18 | /* AMCC Operation Register Offsets - PCI */ | |
19 | /****************************************************************************/ | |
20 | ||
21 | #define AMCC_OP_REG_OMB1 0x00 | |
22 | #define AMCC_OP_REG_OMB2 0x04 | |
23 | #define AMCC_OP_REG_OMB3 0x08 | |
24 | #define AMCC_OP_REG_OMB4 0x0c | |
25 | #define AMCC_OP_REG_IMB1 0x10 | |
26 | #define AMCC_OP_REG_IMB2 0x14 | |
27 | #define AMCC_OP_REG_IMB3 0x18 | |
28 | #define AMCC_OP_REG_IMB4 0x1c | |
29 | #define AMCC_OP_REG_FIFO 0x20 | |
30 | #define AMCC_OP_REG_MWAR 0x24 | |
31 | #define AMCC_OP_REG_MWTC 0x28 | |
32 | #define AMCC_OP_REG_MRAR 0x2c | |
33 | #define AMCC_OP_REG_MRTC 0x30 | |
34 | #define AMCC_OP_REG_MBEF 0x34 | |
35 | #define AMCC_OP_REG_INTCSR 0x38 | |
36 | #define AMCC_OP_REG_INTCSR_SRC (AMCC_OP_REG_INTCSR + 2) /* INT source */ | |
37 | #define AMCC_OP_REG_INTCSR_FEC (AMCC_OP_REG_INTCSR + 3) /* FIFO ctrl */ | |
38 | #define AMCC_OP_REG_MCSR 0x3c | |
39 | #define AMCC_OP_REG_MCSR_NVDATA (AMCC_OP_REG_MCSR + 2) /* Data in byte 2 */ | |
40 | #define AMCC_OP_REG_MCSR_NVCMD (AMCC_OP_REG_MCSR + 3) /* Command in byte 3 */ | |
41 | ||
42 | #define AMCC_FIFO_DEPTH_DWORD 8 | |
931a9c73 | 43 | #define AMCC_FIFO_DEPTH_BYTES (8 * sizeof(u32)) |
d351ec84 MD |
44 | |
45 | /****************************************************************************/ | |
46 | /* AMCC - PCI Interrupt Control/Status Register */ | |
47 | /****************************************************************************/ | |
48 | #define INTCSR_OUTBOX_BYTE(x) ((x) & 0x3) | |
49 | #define INTCSR_OUTBOX_SELECT(x) (((x) & 0x3) << 2) | |
2696fb57 | 50 | #define INTCSR_OUTBOX_EMPTY_INT 0x10 /* enable outbox empty interrupt */ |
d351ec84 MD |
51 | #define INTCSR_INBOX_BYTE(x) (((x) & 0x3) << 8) |
52 | #define INTCSR_INBOX_SELECT(x) (((x) & 0x3) << 10) | |
2696fb57 | 53 | #define INTCSR_INBOX_FULL_INT 0x1000 /* enable inbox full interrupt */ |
8f901437 SA |
54 | /* read, or write clear inbox full interrupt */ |
55 | #define INTCSR_INBOX_INTR_STATUS 0x20000 | |
011cdca0 SA |
56 | /* read only, interrupt asserted */ |
57 | #define INTCSR_INTR_ASSERTED 0x800000 | |
d351ec84 MD |
58 | |
59 | /****************************************************************************/ | |
d074aeb8 | 60 | /* AMCC - PCI non-volatile ram command register (byte 3 of AMCC_OP_REG_MCSR) */ |
d351ec84 MD |
61 | /****************************************************************************/ |
62 | #define MCSR_NV_LOAD_LOW_ADDR 0x0 | |
63 | #define MCSR_NV_LOAD_HIGH_ADDR 0x20 | |
64 | #define MCSR_NV_WRITE 0x40 | |
65 | #define MCSR_NV_READ 0x60 | |
66 | #define MCSR_NV_MASK 0x60 | |
67 | #define MCSR_NV_ENABLE 0x80 | |
68 | #define MCSR_NV_BUSY MCSR_NV_ENABLE | |
69 | ||
70 | /****************************************************************************/ | |
71 | /* AMCC Operation Registers Size - PCI */ | |
72 | /****************************************************************************/ | |
73 | ||
74 | #define AMCC_OP_REG_SIZE 64 /* in bytes */ | |
75 | ||
76 | /****************************************************************************/ | |
77 | /* AMCC Operation Register Offsets - Add-on */ | |
78 | /****************************************************************************/ | |
79 | ||
80 | #define AMCC_OP_REG_AIMB1 0x00 | |
81 | #define AMCC_OP_REG_AIMB2 0x04 | |
82 | #define AMCC_OP_REG_AIMB3 0x08 | |
83 | #define AMCC_OP_REG_AIMB4 0x0c | |
84 | #define AMCC_OP_REG_AOMB1 0x10 | |
85 | #define AMCC_OP_REG_AOMB2 0x14 | |
86 | #define AMCC_OP_REG_AOMB3 0x18 | |
87 | #define AMCC_OP_REG_AOMB4 0x1c | |
88 | #define AMCC_OP_REG_AFIFO 0x20 | |
89 | #define AMCC_OP_REG_AMWAR 0x24 | |
90 | #define AMCC_OP_REG_APTA 0x28 | |
91 | #define AMCC_OP_REG_APTD 0x2c | |
92 | #define AMCC_OP_REG_AMRAR 0x30 | |
93 | #define AMCC_OP_REG_AMBEF 0x34 | |
94 | #define AMCC_OP_REG_AINT 0x38 | |
95 | #define AMCC_OP_REG_AGCSTS 0x3c | |
96 | #define AMCC_OP_REG_AMWTC 0x58 | |
97 | #define AMCC_OP_REG_AMRTC 0x5c | |
98 | ||
99 | /****************************************************************************/ | |
100 | /* AMCC - Add-on General Control/Status Register */ | |
101 | /****************************************************************************/ | |
102 | ||
103 | #define AGCSTS_CONTROL_MASK 0xfffff000 | |
104 | #define AGCSTS_NV_ACC_MASK 0xe0000000 | |
105 | #define AGCSTS_RESET_MASK 0x0e000000 | |
106 | #define AGCSTS_NV_DA_MASK 0x00ff0000 | |
107 | #define AGCSTS_BIST_MASK 0x0000f000 | |
108 | #define AGCSTS_STATUS_MASK 0x000000ff | |
109 | #define AGCSTS_TCZERO_MASK 0x000000c0 | |
110 | #define AGCSTS_FIFO_ST_MASK 0x0000003f | |
111 | ||
636971fc HS |
112 | #define AGCSTS_TC_ENABLE 0x10000000 |
113 | ||
d351ec84 MD |
114 | #define AGCSTS_RESET_MBFLAGS 0x08000000 |
115 | #define AGCSTS_RESET_P2A_FIFO 0x04000000 | |
116 | #define AGCSTS_RESET_A2P_FIFO 0x02000000 | |
117 | #define AGCSTS_RESET_FIFOS (AGCSTS_RESET_A2P_FIFO | AGCSTS_RESET_P2A_FIFO) | |
118 | ||
119 | #define AGCSTS_A2P_TCOUNT 0x00000080 | |
120 | #define AGCSTS_P2A_TCOUNT 0x00000040 | |
121 | ||
122 | #define AGCSTS_FS_P2A_EMPTY 0x00000020 | |
123 | #define AGCSTS_FS_P2A_HALF 0x00000010 | |
124 | #define AGCSTS_FS_P2A_FULL 0x00000008 | |
125 | ||
126 | #define AGCSTS_FS_A2P_EMPTY 0x00000004 | |
127 | #define AGCSTS_FS_A2P_HALF 0x00000002 | |
128 | #define AGCSTS_FS_A2P_FULL 0x00000001 | |
129 | ||
130 | /****************************************************************************/ | |
131 | /* AMCC - Add-on Interrupt Control/Status Register */ | |
132 | /****************************************************************************/ | |
133 | ||
134 | #define AINT_INT_MASK 0x00ff0000 | |
135 | #define AINT_SEL_MASK 0x0000ffff | |
136 | #define AINT_IS_ENSEL_MASK 0x00001f1f | |
137 | ||
138 | #define AINT_INT_ASSERTED 0x00800000 | |
139 | #define AINT_BM_ERROR 0x00200000 | |
140 | #define AINT_BIST_INT 0x00100000 | |
141 | ||
142 | #define AINT_RT_COMPLETE 0x00080000 | |
143 | #define AINT_WT_COMPLETE 0x00040000 | |
144 | ||
145 | #define AINT_OUT_MB_INT 0x00020000 | |
146 | #define AINT_IN_MB_INT 0x00010000 | |
147 | ||
148 | #define AINT_READ_COMPL 0x00008000 | |
149 | #define AINT_WRITE_COMPL 0x00004000 | |
150 | ||
509e42e1 MK |
151 | #define AINT_OMB_ENABLE 0x00001000 |
152 | #define AINT_OMB_SELECT 0x00000c00 | |
d351ec84 MD |
153 | #define AINT_OMB_BYTE 0x00000300 |
154 | ||
509e42e1 MK |
155 | #define AINT_IMB_ENABLE 0x00000010 |
156 | #define AINT_IMB_SELECT 0x0000000c | |
d351ec84 MD |
157 | #define AINT_IMB_BYTE 0x00000003 |
158 | ||
2696fb57 | 159 | /* these are bits from various different registers, needs cleanup XXX */ |
d351ec84 MD |
160 | /* Enable Bus Mastering */ |
161 | #define EN_A2P_TRANSFERS 0x00000400 | |
162 | /* FIFO Flag Reset */ | |
163 | #define RESET_A2P_FLAGS 0x04000000L | |
164 | /* FIFO Relative Priority */ | |
165 | #define A2P_HI_PRIORITY 0x00000100L | |
166 | /* Identify Interrupt Sources */ | |
167 | #define ANY_S593X_INT 0x00800000L | |
168 | #define READ_TC_INT 0x00080000L | |
169 | #define WRITE_TC_INT 0x00040000L | |
170 | #define IN_MB_INT 0x00020000L | |
171 | #define MASTER_ABORT_INT 0x00100000L | |
172 | #define TARGET_ABORT_INT 0x00200000L | |
173 | #define BUS_MASTER_INT 0x00200000L | |
174 | ||
175 | #endif |