1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * xwidget.h - generic crosstalk widget header file, derived from IRIX
7 * <sys/xtalk/xtalkwidget.h>, revision 1.32.
8 *
9 * Copyright (C) 1996, 1999 Silcon Graphics, Inc.
10 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
11 */
12 #ifndef _ASM_XTALK_XWIDGET_H
13 #define _ASM_XTALK_XWIDGET_H
14
15 #include <linux/types.h>
16 #include <asm/xtalk/xtalk.h>
17
18 #define WIDGET_ID 0x04
19 #define WIDGET_STATUS 0x0c
20 #define WIDGET_ERR_UPPER_ADDR 0x14
21 #define WIDGET_ERR_LOWER_ADDR 0x1c
22 #define WIDGET_CONTROL 0x24
23 #define WIDGET_REQ_TIMEOUT 0x2c
24 #define WIDGET_INTDEST_UPPER_ADDR 0x34
25 #define WIDGET_INTDEST_LOWER_ADDR 0x3c
26 #define WIDGET_ERR_CMD_WORD 0x44
27 #define WIDGET_LLP_CFG 0x4c
28 #define WIDGET_TFLUSH 0x54
29
30 /* WIDGET_ID */
31 #define WIDGET_REV_NUM 0xf0000000
32 #define WIDGET_PART_NUM 0x0ffff000
33 #define WIDGET_MFG_NUM 0x00000ffe
34 #define WIDGET_REV_NUM_SHFT 28
35 #define WIDGET_PART_NUM_SHFT 12
36 #define WIDGET_MFG_NUM_SHFT 1
37
38 #define XWIDGET_PART_NUM(widgetid) (((widgetid) & WIDGET_PART_NUM) >> WIDGET_PART_NUM_SHFT)
39 #define XWIDGET_REV_NUM(widgetid) (((widgetid) & WIDGET_REV_NUM) >> WIDGET_REV_NUM_SHFT)
40 #define XWIDGET_MFG_NUM(widgetid) (((widgetid) & WIDGET_MFG_NUM) >> WIDGET_MFG_NUM_SHFT)
41
42 /* WIDGET_STATUS */
43 #define WIDGET_LLP_REC_CNT 0xff000000
44 #define WIDGET_LLP_TX_CNT 0x00ff0000
45 #define WIDGET_PENDING 0x0000001f
46
47 /* WIDGET_ERR_UPPER_ADDR */
48 #define WIDGET_ERR_UPPER_ADDR_ONLY 0x0000ffff
49
50 /* WIDGET_CONTROL */
51 #define WIDGET_F_BAD_PKT 0x00010000
52 #define WIDGET_LLP_XBAR_CRD 0x0000f000
53 #define WIDGET_LLP_XBAR_CRD_SHFT 12
54 #define WIDGET_CLR_RLLP_CNT 0x00000800
55 #define WIDGET_CLR_TLLP_CNT 0x00000400
56 #define WIDGET_SYS_END 0x00000200
57 #define WIDGET_MAX_TRANS 0x000001f0
58 #define WIDGET_WIDGET_ID 0x0000000f
59
60 /* WIDGET_INTDEST_UPPER_ADDR */
61 #define WIDGET_INT_VECTOR 0xff000000
62 #define WIDGET_INT_VECTOR_SHFT 24
63 #define WIDGET_TARGET_ID 0x000f0000
64 #define WIDGET_TARGET_ID_SHFT 16
65 #define WIDGET_UPP_ADDR 0x0000ffff
66
67 /* WIDGET_ERR_CMD_WORD */
68 #define WIDGET_DIDN 0xf0000000
69 #define WIDGET_SIDN 0x0f000000
70 #define WIDGET_PACTYP 0x00f00000
71 #define WIDGET_TNUM 0x000f8000
72 #define WIDGET_COHERENT 0x00004000
73 #define WIDGET_DS 0x00003000
74 #define WIDGET_GBR 0x00000800
75 #define WIDGET_VBPM 0x00000400
76 #define WIDGET_ERROR 0x00000200
77 #define WIDGET_BARRIER 0x00000100
78
79 /* WIDGET_LLP_CFG */
80 #define WIDGET_LLP_MAXRETRY 0x03ff0000
81 #define WIDGET_LLP_MAXRETRY_SHFT 16
82 #define WIDGET_LLP_NULLTIMEOUT 0x0000fc00
83 #define WIDGET_LLP_NULLTIMEOUT_SHFT 10
84 #define WIDGET_LLP_MAXBURST 0x000003ff
85 #define WIDGET_LLP_MAXBURST_SHFT 0
86
87 /* Xtalk Widget Device Mfgr Nums */
88 #define WIDGET_XBOW_MFGR_NUM 0x0 /* IP30 XBow Chip */
89 #define WIDGET_XXBOW_MFGR_NUM 0x0 /* IP35 Xbow + XBridge Chip */
90 #define WIDGET_ODYS_MFGR_NUM 0x023 /* Odyssey / VPro GFX */
91 #define WIDGET_TPU_MFGR_NUM 0x024 /* Tensor Processor Unit */
92 #define WIDGET_XBRDG_MFGR_NUM 0x024 /* IP35 XBridge Chip */
93 #define WIDGET_HEART_MFGR_NUM 0x036 /* IP30 HEART Chip */
94 #define WIDGET_BRIDG_MFGR_NUM 0x036 /* PCI Bridge */
95 #define WIDGET_HUB_MFGR_NUM 0x036 /* IP27 Hub Chip */
96 #define WIDGET_BDRCK_MFGR_NUM 0x036 /* IP35 Bedrock Chip */
97 #define WIDGET_IMPCT_MFGR_NUM 0x2aa /* HQ4 / Impact GFX */
98 #define WIDGET_KONA_MFGR_NUM 0x2aa /* InfiniteReality3 / Kona GFX */
99 #define WIDGET_NULL_MFGR_NUM -1 /* NULL */
100
101 /* Xtalk Widget Device Part Nums */
102 #define WIDGET_XBOW_PART_NUM 0x0000
103 #define WIDGET_HEART_PART_NUM 0xc001
104 #define WIDGET_BRIDG_PART_NUM 0xc002
105 #define WIDGET_IMPCT_PART_NUM 0xc003
106 #define WIDGET_ODYS_PART_NUM 0xc013
107 #define WIDGET_HUB_PART_NUM 0xc101
108 #define WIDGET_KONA_PART_NUM 0xc102
109 #define WIDGET_BDRCK_PART_NUM 0xc110
110 #define WIDGET_TPU_PART_NUM 0xc202
111 #define WIDGET_XXBOW_PART_NUM 0xd000
112 #define WIDGET_XBRDG_PART_NUM 0xd002
113 #define WIDGET_NULL_PART_NUM -1
114
115 /* For Xtalk Widget identification */
116 struct widget_ident {
117 u32 mfgr;
118 u32 part;
119 char *name;
120 char *revs[16];
121 };
122
123 /* Known Xtalk Widgets */
124 static const struct widget_ident __initconst widget_idents[] = {
125 {
126 WIDGET_XBOW_MFGR_NUM,
127 WIDGET_XBOW_PART_NUM,
128 "xbow",
129 {NULL, "1.0", "1.1", "1.2", "1.3", "2.0", NULL},
130 },
131 {
132 WIDGET_HEART_MFGR_NUM,
133 WIDGET_HEART_PART_NUM,
134 "heart",
135 {NULL, "A", "B", "C", "D", "E", "F", NULL},
136 },
137 {
138 WIDGET_BRIDG_MFGR_NUM,
139 WIDGET_BRIDG_PART_NUM,
140 "bridge",
141 {NULL, "A", "B", "C", "D", NULL},
142 },
143 {
144 WIDGET_IMPCT_MFGR_NUM,
145 WIDGET_IMPCT_PART_NUM,
146 "impact",
147 {NULL, "A", "B", NULL},
148 },
149 {
150 WIDGET_ODYS_MFGR_NUM,
151 WIDGET_ODYS_PART_NUM,
152 "odyssey",
153 {NULL, "A", "B", NULL},
154 },
155 {
156 WIDGET_HUB_MFGR_NUM,
157 WIDGET_HUB_PART_NUM,
158 "hub",
159 {NULL, "1.0", "2.0", "2.1", "2.2", "2.3", "2.4", NULL},
160 },
161 {
162 WIDGET_KONA_MFGR_NUM,
163 WIDGET_KONA_PART_NUM,
164 "kona",
165 {NULL},
166 },
167 {
168 WIDGET_BDRCK_MFGR_NUM,
169 WIDGET_BDRCK_PART_NUM,
170 "bedrock",
171 {NULL, "1.0", "1.1", NULL},
172 },
173 {
174 WIDGET_TPU_MFGR_NUM,
175 WIDGET_TPU_PART_NUM,
176 "tpu",
177 {"", NULL},
178 },
179 {
180 WIDGET_XXBOW_MFGR_NUM,
181 WIDGET_XXBOW_PART_NUM,
182 "xxbow",
183 {NULL, "1.0", "2.0", NULL},
184 },
185 {
186 WIDGET_XBRDG_MFGR_NUM,
187 WIDGET_XBRDG_PART_NUM,
188 "xbridge",
189 {NULL, "A", "B", NULL},
190 },
191 {
192 WIDGET_NULL_MFGR_NUM,
193 WIDGET_NULL_PART_NUM,
194 NULL,
195 {NULL},
196 }
197 };
198
199 /*
200 * according to the crosstalk spec, only 32-bits access to the widget
201 * configuration registers is allowed. some widgets may allow 64-bits
202 * access but software should not depend on it. registers beyond the
203 * widget target flush register are widget dependent thus will not be
204 * defined here
205 */
206 #ifndef __ASSEMBLY__
207 typedef u32 widgetreg_t;
208
209 /* widget configuration registers */
210 typedef volatile struct widget_cfg {
211 widgetreg_t w_pad_0; /* 0x00 */
212 widgetreg_t w_id; /* 0x04 */
213 widgetreg_t w_pad_1; /* 0x08 */
214 widgetreg_t w_status; /* 0x0c */
215 widgetreg_t w_pad_2; /* 0x10 */
216 widgetreg_t w_err_upper_addr; /* 0x14 */
217 widgetreg_t w_pad_3; /* 0x18 */
218 widgetreg_t w_err_lower_addr; /* 0x1c */
219 widgetreg_t w_pad_4; /* 0x20 */
220 widgetreg_t w_control; /* 0x24 */
221 widgetreg_t w_pad_5; /* 0x28 */
222 widgetreg_t w_req_timeout; /* 0x2c */
223 widgetreg_t w_pad_6; /* 0x30 */
224 widgetreg_t w_intdest_upper_addr; /* 0x34 */
225 widgetreg_t w_pad_7; /* 0x38 */
226 widgetreg_t w_intdest_lower_addr; /* 0x3c */
227 widgetreg_t w_pad_8; /* 0x40 */
228 widgetreg_t w_err_cmd_word; /* 0x44 */
229 widgetreg_t w_pad_9; /* 0x48 */
230 widgetreg_t w_llp_cfg; /* 0x4c */
231 widgetreg_t w_pad_10; /* 0x50 */
232 widgetreg_t w_tflush; /* 0x54 */
233 } widget_cfg_t;
234
235 typedef struct {
236 unsigned didn:4;
237 unsigned sidn:4;
238 unsigned pactyp:4;
239 unsigned tnum:5;
240 unsigned ct:1;
241 unsigned ds:2;
242 unsigned gbr:1;
243 unsigned vbpm:1;
244 unsigned error:1;
245 unsigned bo:1;
246 unsigned other:8;
247 } w_err_cmd_word_f;
248
249 typedef union {
250 widgetreg_t r;
251 w_err_cmd_word_f f;
252 } w_err_cmd_word_u;
253
254 typedef struct xwidget_info_s *xwidget_info_t;
255
256 /*
257 * Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
258 */
259 typedef struct xwidget_hwid_s {
260 xwidget_part_num_t part_num;
261 xwidget_rev_num_t rev_num;
262 xwidget_mfg_num_t mfg_num;
263 } *xwidget_hwid_t;
264
265
266 /*
267 * Returns 1 if a driver that handles devices described by hwid1 is able
268 * to manage a device with hardwareid hwid2. NOTE: We don't check rev
269 * numbers at all.
270 */
271 #define XWIDGET_HARDWARE_ID_MATCH(hwid1, hwid2) \
272 (((hwid1)->part_num == (hwid2)->part_num) && \
273 (((hwid1)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
274 ((hwid2)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
275 ((hwid1)->mfg_num == (hwid2)->mfg_num)))
276
277 #endif /* !__ASSEMBLY__ */
278
279 #endif /* _ASM_XTALK_XWIDGET_H */
280
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