aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/include/asm/mach-db1x00/bcsr.h
blob: ecbe19e3c14eaa8725576421d0697129d5d35a1f (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
/*
 * bcsr.h -- Db1xxx/Pb1xxx Devboard CPLD registers ("BCSR") abstraction.
 *
 * All Alchemy development boards (except, of course, the weird PB1000)
 * have a few registers in a CPLD with standardised layout; they mostly
 * only differ in base address and bit meanings in the RESETS and BOARD
 * registers.
 *
 * All data taken from the official AMD board documentation sheets.
 */

#ifndef _DB1XXX_BCSR_H_
#define _DB1XXX_BCSR_H_


/* BCSR base addresses on various boards. BCSR base 2 refers to the
 * physical address of the first HEXLEDS register, which is usually
 * a variable offset from the WHOAMI register.
 */

/* DB1000, DB1100, DB1500, PB1100, PB1500 */
#define DB1000_BCSR_PHYS_ADDR	0x0E000000
#define DB1000_BCSR_HEXLED_OFS	0x01000000

#define DB1550_BCSR_PHYS_ADDR	0x0F000000
#define DB1550_BCSR_HEXLED_OFS	0x00400000

#define PB1550_BCSR_PHYS_ADDR	0x0F000000
#define PB1550_BCSR_HEXLED_OFS	0x00800000

#define DB1200_BCSR_PHYS_ADDR	0x19800000
#define DB1200_BCSR_HEXLED_OFS	0x00400000

#define PB1200_BCSR_PHYS_ADDR	0x0D800000
#define PB1200_BCSR_HEXLED_OFS	0x00400000


enum bcsr_id {
	/* BCSR base 1 */
	BCSR_WHOAMI	= 0,
	BCSR_STATUS,
	BCSR_SWITCHES,
	BCSR_RESETS,
	BCSR_PCMCIA,
	BCSR_BOARD,
	BCSR_LEDS,
	BCSR_SYSTEM,
	/* Au1200/1300 based boards */
	BCSR_INTCLR,
	BCSR_INTSET,
	BCSR_MASKCLR,
	BCSR_MASKSET,
	BCSR_SIGSTAT,
	BCSR_INTSTAT,

	/* BCSR base 2 */
	BCSR_HEXLEDS,
	BCSR_RSVD1,
	BCSR_HEXCLEAR,

	BCSR_CNT,
};

/* register offsets, valid for all Db1xxx/Pb1xxx boards */
#define BCSR_REG_WHOAMI		0x00
#define BCSR_REG_STATUS		0x04
#define BCSR_REG_SWITCHES	0x08
#define BCSR_REG_RESETS		0x0c
#define BCSR_REG_PCMCIA		0x10
#define BCSR_REG_BOARD		0x14
#define BCSR_REG_LEDS		0x18
#define BCSR_REG_SYSTEM		0x1c
/* Au1200/Au1300 based boards: CPLD IRQ muxer */
#define BCSR_REG_INTCLR		0x20
#define BCSR_REG_INTSET		0x24
#define BCSR_REG_MASKCLR	0x28
#define BCSR_REG_MASKSET	0x2c
#define BCSR_REG_SIGSTAT	0x30
#define BCSR_REG_INTSTAT	0x34

/* hexled control, offset from BCSR base 2 */
#define BCSR_REG_HEXLEDS	0x00
#define BCSR_REG_HEXCLEAR	0x08

/*
 * Register Bits and Pieces.
 */
#define BCSR_WHOAMI_DCID(x)		((x) & 0xf)
#define BCSR_WHOAMI_CPLD(x)		(((x) >> 4) & 0xf)
#define BCSR_WHOAMI_BOARD(x)		(((x) >> 8) & 0xf)

/* register "WHOAMI" bits 11:8 identify the board */
enum bcsr_whoami_boards {
	BCSR_WHOAMI_PB1500 = 1,
	BCSR_WHOAMI_PB1500R2,
	BCSR_WHOAMI_PB1100,
	BCSR_WHOAMI_DB1000,
	BCSR_WHOAMI_DB1100,
	BCSR_WHOAMI_DB1500,
	BCSR_WHOAMI_DB1550,
	BCSR_WHOAMI_PB1550_DDR,
	BCSR_WHOAMI_PB1550 = BCSR_WHOAMI_PB1550_DDR,
	BCSR_WHOAMI_PB1550_SDR,
	BCSR_WHOAMI_PB1200_DDR1,
	BCSR_WHOAMI_PB1200 = BCSR_WHOAMI_PB1200_DDR1,
	BCSR_WHOAMI_PB1200_DDR2,
	BCSR_WHOAMI_DB1200,
};

/* STATUS reg.  Unless otherwise noted, they're valid on all boards.
 * PB1200 = DB1200.
 */
#define BCSR_STATUS_PC0VS		0x0003
#define BCSR_STATUS_PC1VS		0x000C
#define BCSR_STATUS_PC0FI		0x0010
#define BCSR_STATUS_PC1FI		0x0020
#define BCSR_STATUS_PB1550_SWAPBOOT	0x0040
#define BCSR_STATUS_SRAMWIDTH		0x0080
#define BCSR_STATUS_FLASHBUSY		0x0100
#define BCSR_STATUS_ROMBUSY		0x0400
#define BCSR_STATUS_SD0WP		0x0400	/* DB1200 */
#define BCSR_STATUS_SD1WP		0x0800
#define BCSR_STATUS_USBOTGID		0x0800	/* PB/DB1550 */
#define BCSR_STATUS_DB1000_SWAPBOOT	0x2000
#define BCSR_STATUS_DB1200_SWAPBOOT	0x0040	/* DB1200 */
#define BCSR_STATUS_IDECBLID		0x0200	/* DB1200 */
#define BCSR_STATUS_DB1200_U0RXD	0x1000	/* DB1200 */
#define BCSR_STATUS_DB1200_U1RXD	0x2000	/* DB1200 */
#define BCSR_STATUS_FLASHDEN		0xC000
#define BCSR_STATUS_DB1550_U0RXD	0x1000	/* DB1550 */
#define BCSR_STATUS_DB1550_U3RXD	0x2000	/* DB1550 */
#define BCSR_STATUS_PB1550_U0RXD	0x1000	/* PB1550 */
#define BCSR_STATUS_PB1550_U1RXD	0x2000	/* PB1550 */
#define BCSR_STATUS_PB1550_U3RXD	0x8000	/* PB1550 */


/* DB/PB1000,1100,1500,1550 */
#define BCSR_RESETS_PHY0		0x0001
#define BCSR_RESETS_PHY1		0x0002
#define BCSR_RESETS_DC			0x0004
#define BCSR_RESETS_FIR_SEL		0x2000
#define BCSR_RESETS_IRDA_MODE_MASK	0xC000
#define BCSR_RESETS_IRDA_MODE_FULL	0x0000
#define BCSR_RESETS_PB1550_WSCFSM	0x2000
#define BCSR_RESETS_IRDA_MODE_OFF	0x4000
#define BCSR_RESETS_IRDA_MODE_2_3	0x8000
#define BCSR_RESETS_IRDA_MODE_1_3	0xC000
#define BCSR_RESETS_DMAREQ		0x8000	/* PB1550 */

#define BCSR_BOARD_PCIM66EN		0x0001
#define BCSR_BOARD_SD0PWR		0x0040
#define BCSR_BOARD_SD1PWR		0x0080
#define BCSR_BOARD_PCIM33		0x0100
#define BCSR_BOARD_PCIEXTARB		0x0200
#define BCSR_BOARD_GPIO200RST		0x0400
#define BCSR_BOARD_PCICLKOUT		0x0800
#define BCSR_BOARD_PCICFG		0x1000
#define BCSR_BOARD_SPISEL		0x4000	/* PB/DB1550 */
#define BCSR_BOARD_SD0WP		0x4000	/* DB1100 */
#define BCSR_BOARD_SD1WP		0x8000	/* DB1100 */


/* DB/PB1200 */
#define BCSR_RESETS_ETH			0x0001
#define BCSR_RESETS_CAMERA		0x0002
#define BCSR_RESETS_DC			0x0004
#define BCSR_RESETS_IDE			0x0008
#define BCSR_RESETS_TV			0x0010	/* DB1200 */
/* Not resets but in the same register */
#define BCSR_RESETS_PWMR1MUX		0x0800	/* DB1200 */
#define BCSR_RESETS_PB1200_WSCFSM	0x0800	/* PB1200 */
#define BCSR_RESETS_PSC0MUX		0x1000
#define BCSR_RESETS_PSC1MUX		0x2000
#define BCSR_RESETS_SPISEL		0x4000
#define BCSR_RESETS_SD1MUX		0x8000	/* PB1200 */

#define BCSR_BOARD_LCDVEE		0x0001
#define BCSR_BOARD_LCDVDD		0x0002
#define BCSR_BOARD_LCDBL		0x0004
#define BCSR_BOARD_CAMSNAP		0x0010
#define BCSR_BOARD_CAMPWR		0x0020
#define BCSR_BOARD_SD0PWR		0x0040


#define BCSR_SWITCHES_DIP		0x00FF
#define BCSR_SWITCHES_DIP_1		0x0080
#define BCSR_SWITCHES_DIP_2		0x0040
#define BCSR_SWITCHES_DIP_3		0x0020
#define BCSR_SWITCHES_DIP_4		0x0010
#define BCSR_SWITCHES_DIP_5		0x0008
#define BCSR_SWITCHES_DIP_6		0x0004
#define BCSR_SWITCHES_DIP_7		0x0002
#define BCSR_SWITCHES_DIP_8		0x0001
#define BCSR_SWITCHES_ROTARY		0x0F00


#define BCSR_PCMCIA_PC0VPP		0x0003
#define BCSR_PCMCIA_PC0VCC		0x000C
#define BCSR_PCMCIA_PC0DRVEN		0x0010
#define BCSR_PCMCIA_PC0RST		0x0080
#define BCSR_PCMCIA_PC1VPP		0x0300
#define BCSR_PCMCIA_PC1VCC		0x0C00
#define BCSR_PCMCIA_PC1DRVEN		0x1000
#define BCSR_PCMCIA_PC1RST		0x8000


#define BCSR_LEDS_DECIMALS		0x0003
#define BCSR_LEDS_LED0			0x0100
#define BCSR_LEDS_LED1			0x0200
#define BCSR_LEDS_LED2			0x0400
#define BCSR_LEDS_LED3			0x0800


#define BCSR_SYSTEM_RESET		0x8000	/* clear to reset */
#define BCSR_SYSTEM_PWROFF		0x4000	/* set to power off */
#define BCSR_SYSTEM_VDDI		0x001F	/* PB1xxx boards */




/* initialize BCSR for a board. Provide the PHYSICAL addresses of both
 * BCSR spaces.
 */
void __init bcsr_init(unsigned long bcsr1_phys, unsigned long bcsr2_phys);

/* read a board register */
unsigned short bcsr_read(enum bcsr_id reg);

/* write to a board register */
void bcsr_write(enum bcsr_id reg, unsigned short val);

/* modify a register. clear bits set in 'clr', set bits set in 'set' */
void bcsr_mod(enum bcsr_id reg, unsigned short clr, unsigned short set);

#endif