summaryrefslogtreecommitdiffstats
path: root/arch/mips/include/asm/xtalk/xwidget.h
blob: 24f121da6a1d97229b45498f589f4d3ced93a1ce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * xwidget.h - generic crosstalk widget header file, derived from IRIX
 * <sys/xtalk/xtalkwidget.h>, revision 1.32.
 *
 * Copyright (C) 1996, 1999 Silcon Graphics, Inc.
 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
 */
#ifndef _ASM_XTALK_XWIDGET_H
#define _ASM_XTALK_XWIDGET_H

#include <linux/types.h>
#include <asm/xtalk/xtalk.h>

#define WIDGET_ID			0x04
#define WIDGET_STATUS			0x0c
#define WIDGET_ERR_UPPER_ADDR		0x14
#define WIDGET_ERR_LOWER_ADDR		0x1c
#define WIDGET_CONTROL			0x24
#define WIDGET_REQ_TIMEOUT		0x2c
#define WIDGET_INTDEST_UPPER_ADDR	0x34
#define WIDGET_INTDEST_LOWER_ADDR	0x3c
#define WIDGET_ERR_CMD_WORD		0x44
#define WIDGET_LLP_CFG			0x4c
#define WIDGET_TFLUSH			0x54

/* WIDGET_ID */
#define WIDGET_REV_NUM			0xf0000000
#define WIDGET_PART_NUM			0x0ffff000
#define WIDGET_MFG_NUM			0x00000ffe
#define WIDGET_REV_NUM_SHFT		28
#define WIDGET_PART_NUM_SHFT		12
#define WIDGET_MFG_NUM_SHFT		1

#define XWIDGET_PART_NUM(widgetid) (((widgetid) & WIDGET_PART_NUM) >> WIDGET_PART_NUM_SHFT)
#define XWIDGET_REV_NUM(widgetid) (((widgetid) & WIDGET_REV_NUM) >> WIDGET_REV_NUM_SHFT)
#define XWIDGET_MFG_NUM(widgetid) (((widgetid) & WIDGET_MFG_NUM) >> WIDGET_MFG_NUM_SHFT)

/* WIDGET_STATUS */
#define WIDGET_LLP_REC_CNT		0xff000000
#define WIDGET_LLP_TX_CNT		0x00ff0000
#define WIDGET_PENDING			0x0000001f

/* WIDGET_ERR_UPPER_ADDR */
#define WIDGET_ERR_UPPER_ADDR_ONLY	0x0000ffff

/* WIDGET_CONTROL */
#define WIDGET_F_BAD_PKT		0x00010000
#define WIDGET_LLP_XBAR_CRD		0x0000f000
#define WIDGET_LLP_XBAR_CRD_SHFT	12
#define WIDGET_CLR_RLLP_CNT		0x00000800
#define WIDGET_CLR_TLLP_CNT		0x00000400
#define WIDGET_SYS_END			0x00000200
#define WIDGET_MAX_TRANS		0x000001f0
#define WIDGET_WIDGET_ID		0x0000000f

/* WIDGET_INTDEST_UPPER_ADDR */
#define WIDGET_INT_VECTOR		0xff000000
#define WIDGET_INT_VECTOR_SHFT		24
#define WIDGET_TARGET_ID		0x000f0000
#define WIDGET_TARGET_ID_SHFT		16
#define WIDGET_UPP_ADDR			0x0000ffff

/* WIDGET_ERR_CMD_WORD */
#define WIDGET_DIDN			0xf0000000
#define WIDGET_SIDN			0x0f000000
#define WIDGET_PACTYP			0x00f00000
#define WIDGET_TNUM			0x000f8000
#define WIDGET_COHERENT			0x00004000
#define WIDGET_DS			0x00003000
#define WIDGET_GBR			0x00000800
#define WIDGET_VBPM			0x00000400
#define WIDGET_ERROR			0x00000200
#define WIDGET_BARRIER			0x00000100

/* WIDGET_LLP_CFG */
#define WIDGET_LLP_MAXRETRY		0x03ff0000
#define WIDGET_LLP_MAXRETRY_SHFT	16
#define WIDGET_LLP_NULLTIMEOUT		0x0000fc00
#define WIDGET_LLP_NULLTIMEOUT_SHFT	10
#define WIDGET_LLP_MAXBURST		0x000003ff
#define WIDGET_LLP_MAXBURST_SHFT	0

/* Xtalk Widget Device Mfgr Nums */
#define WIDGET_XBOW_MFGR_NUM	0x0      /* IP30 XBow Chip */
#define WIDGET_XXBOW_MFGR_NUM	0x0      /* IP35 Xbow + XBridge Chip */
#define WIDGET_ODYS_MFGR_NUM	0x023    /* Odyssey / VPro GFX */
#define WIDGET_TPU_MFGR_NUM	0x024    /* Tensor Processor Unit */
#define WIDGET_XBRDG_MFGR_NUM	0x024    /* IP35 XBridge Chip */
#define WIDGET_HEART_MFGR_NUM	0x036    /* IP30 HEART Chip */
#define WIDGET_BRIDG_MFGR_NUM	0x036    /* PCI Bridge */
#define WIDGET_HUB_MFGR_NUM	0x036    /* IP27 Hub Chip */
#define WIDGET_BDRCK_MFGR_NUM	0x036    /* IP35 Bedrock Chip */
#define WIDGET_IMPCT_MFGR_NUM	0x2aa    /* HQ4 / Impact GFX */
#define WIDGET_KONA_MFGR_NUM	0x2aa    /* InfiniteReality3 / Kona GFX */
#define WIDGET_NULL_MFGR_NUM	-1       /* NULL */

/* Xtalk Widget Device Part Nums */
#define WIDGET_XBOW_PART_NUM	0x0000
#define WIDGET_HEART_PART_NUM	0xc001
#define WIDGET_BRIDG_PART_NUM	0xc002
#define WIDGET_IMPCT_PART_NUM	0xc003
#define WIDGET_ODYS_PART_NUM	0xc013
#define WIDGET_HUB_PART_NUM	0xc101
#define WIDGET_KONA_PART_NUM	0xc102
#define WIDGET_BDRCK_PART_NUM	0xc110
#define WIDGET_TPU_PART_NUM	0xc202
#define WIDGET_XXBOW_PART_NUM	0xd000
#define WIDGET_XBRDG_PART_NUM	0xd002
#define WIDGET_NULL_PART_NUM	-1

/* For Xtalk Widget identification */
struct widget_ident {
	u32 mfgr;
	u32 part;
	char *name;
	char *revs[16];
};

/* Known Xtalk Widgets */
static const struct widget_ident __initconst widget_idents[] = {
	{
		WIDGET_XBOW_MFGR_NUM,
		WIDGET_XBOW_PART_NUM,
		"xbow",
		{NULL, "1.0", "1.1", "1.2", "1.3", "2.0", NULL},
	},
	{
		WIDGET_HEART_MFGR_NUM,
		WIDGET_HEART_PART_NUM,
		"heart",
		{NULL, "A", "B", "C", "D", "E", "F", NULL},
	},
	{
		WIDGET_BRIDG_MFGR_NUM,
		WIDGET_BRIDG_PART_NUM,
		"bridge",
		{NULL, "A", "B", "C", "D", NULL},
	},
	{
		WIDGET_IMPCT_MFGR_NUM,
		WIDGET_IMPCT_PART_NUM,
		"impact",
		{NULL, "A", "B", NULL},
	},
	{
		WIDGET_ODYS_MFGR_NUM,
		WIDGET_ODYS_PART_NUM,
		"odyssey",
		{NULL, "A", "B", NULL},
	},
	{
		WIDGET_HUB_MFGR_NUM,
		WIDGET_HUB_PART_NUM,
		"hub",
		{NULL, "1.0", "2.0", "2.1", "2.2", "2.3", "2.4", NULL},
	},
	{
		WIDGET_KONA_MFGR_NUM,
		WIDGET_KONA_PART_NUM,
		"kona",
		{NULL},
	},
	{
		WIDGET_BDRCK_MFGR_NUM,
		WIDGET_BDRCK_PART_NUM,
		"bedrock",
		{NULL, "1.0", "1.1", NULL},
	},
	{
		WIDGET_TPU_MFGR_NUM,
		WIDGET_TPU_PART_NUM,
		"tpu",
		{"0", NULL},
	},
	{
		WIDGET_XXBOW_MFGR_NUM,
		WIDGET_XXBOW_PART_NUM,
		"xxbow",
		{NULL, "1.0", "2.0", NULL},
	},
	{
		WIDGET_XBRDG_MFGR_NUM,
		WIDGET_XBRDG_PART_NUM,
		"xbridge",
		{NULL, "A", "B", NULL},
	},
	{
		WIDGET_NULL_MFGR_NUM,
		WIDGET_NULL_PART_NUM,
		NULL,
		{NULL},
	}
};

/*
 * according to the crosstalk spec, only 32-bits access to the widget
 * configuration registers is allowed.	some widgets may allow 64-bits
 * access but software should not depend on it.	 registers beyond the
 * widget target flush register are widget dependent thus will not be
 * defined here
 */
#ifndef __ASSEMBLY__
typedef u32 widgetreg_t;

/* widget configuration registers */
typedef volatile struct widget_cfg {
	widgetreg_t		w_pad_0;		/* 0x00 */
	widgetreg_t		w_id;			/* 0x04 */
	widgetreg_t		w_pad_1;		/* 0x08 */
	widgetreg_t		w_status;		/* 0x0c */
	widgetreg_t		w_pad_2;		/* 0x10 */
	widgetreg_t		w_err_upper_addr;	/* 0x14 */
	widgetreg_t		w_pad_3;		/* 0x18 */
	widgetreg_t		w_err_lower_addr;	/* 0x1c */
	widgetreg_t		w_pad_4;		/* 0x20 */
	widgetreg_t		w_control;		/* 0x24 */
	widgetreg_t		w_pad_5;		/* 0x28 */
	widgetreg_t		w_req_timeout;		/* 0x2c */
	widgetreg_t		w_pad_6;		/* 0x30 */
	widgetreg_t		w_intdest_upper_addr;	/* 0x34 */
	widgetreg_t		w_pad_7;		/* 0x38 */
	widgetreg_t		w_intdest_lower_addr;	/* 0x3c */
	widgetreg_t		w_pad_8;		/* 0x40 */
	widgetreg_t		w_err_cmd_word;		/* 0x44 */
	widgetreg_t		w_pad_9;		/* 0x48 */
	widgetreg_t		w_llp_cfg;		/* 0x4c */
	widgetreg_t		w_pad_10;		/* 0x50 */
	widgetreg_t		w_tflush;		/* 0x54 */
} widget_cfg_t;

typedef struct {
	unsigned	didn:4;
	unsigned	sidn:4;
	unsigned	pactyp:4;
	unsigned	tnum:5;
	unsigned	ct:1;
	unsigned	ds:2;
	unsigned	gbr:1;
	unsigned	vbpm:1;
	unsigned	error:1;
	unsigned	bo:1;
	unsigned	other:8;
} w_err_cmd_word_f;

typedef union {
	widgetreg_t		r;
	w_err_cmd_word_f	f;
} w_err_cmd_word_u;

typedef struct xwidget_info_s *xwidget_info_t;

/*
 * Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec.
 */
typedef struct xwidget_hwid_s {
	xwidget_part_num_t	part_num;
	xwidget_rev_num_t	rev_num;
	xwidget_mfg_num_t	mfg_num;
} *xwidget_hwid_t;


/*
 * Returns 1 if a driver that handles devices described by hwid1 is able
 * to manage a device with hardwareid hwid2.  NOTE: We don't check rev
 * numbers at all.
 */
#define XWIDGET_HARDWARE_ID_MATCH(hwid1, hwid2) \
	(((hwid1)->part_num == (hwid2)->part_num) && \
	(((hwid1)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
	((hwid2)->mfg_num == XWIDGET_MFG_NUM_NONE) || \
	((hwid1)->mfg_num == (hwid2)->mfg_num)))

#endif /* !__ASSEMBLY__ */

#endif /* _ASM_XTALK_XWIDGET_H */
OpenPOWER on IntegriCloud