aboutsummaryrefslogtreecommitdiff
path: root/include/asm-mips/mach-db1x00/db1x00.h
blob: efafe65258b6eb664b766e8844b2766a07eb41ae (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
/*
 * AMD Alchemy DB1x00 Reference Boards
 *
 * Copyright 2001 MontaVista Software Inc.
 * Author: MontaVista Software, Inc.
 *         	ppopov@mvista.com or source@mvista.com
 * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
 *
 * ########################################################################
 *
 *  This program is free software; you can distribute it and/or modify it
 *  under the terms of the GNU General Public License (Version 2) as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 *
 * ########################################################################
 *
 *
 */
#ifndef __ASM_DB1X00_H
#define __ASM_DB1X00_H

#include <linux/config.h>

#ifdef CONFIG_MIPS_DB1550
#define BCSR_KSEG1_ADDR 0xAF000000
#define NAND_PHYS_ADDR  0x20000000
#else
#define BCSR_KSEG1_ADDR 0xAE000000
#endif

/*
 * Overlay data structure of the Db1x00 board registers.
 * Registers located at physical 0E0000xx, KSEG1 0xAE0000xx
 */
typedef volatile struct
{
	/*00*/	unsigned short whoami;
	unsigned short reserved0;
	/*04*/	unsigned short status;
	unsigned short reserved1;
	/*08*/	unsigned short switches;
	unsigned short reserved2;
	/*0C*/	unsigned short resets;
	unsigned short reserved3;
	/*10*/	unsigned short pcmcia;
	unsigned short reserved4;
	/*14*/	unsigned short specific;
	unsigned short reserved5;
	/*18*/	unsigned short leds;
	unsigned short reserved6;
	/*1C*/	unsigned short swreset;
	unsigned short reserved7;

} BCSR;


/*
 * Register/mask bit definitions for the BCSRs
 */
#define BCSR_WHOAMI_DCID		0x000F
#define BCSR_WHOAMI_CPLD		0x00F0
#define BCSR_WHOAMI_BOARD		0x0F00

#define BCSR_STATUS_PC0VS		0x0003
#define BCSR_STATUS_PC1VS		0x000C
#define BCSR_STATUS_PC0FI		0x0010
#define BCSR_STATUS_PC1FI		0x0020
#define BCSR_STATUS_FLASHBUSY		0x0100
#define BCSR_STATUS_ROMBUSY		0x0400
#define BCSR_STATUS_SWAPBOOT		0x2000
#define BCSR_STATUS_FLASHDEN		0xC000

#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_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_IRDA_MODE_OFF	0x4000
#define BCSR_RESETS_IRDA_MODE_2_3	0x8000
#define BCSR_RESETS_IRDA_MODE_1_3	0xC000

#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_BOARD_PCIM66EN		0x0001
#define BCSR_BOARD_SD0_PWR		0x0040
#define BCSR_BOARD_SD1_PWR		0x0080
#define BCSR_BOARD_PCIM33		0x0100
#define BCSR_BOARD_GPIO200RST		0x0400
#define BCSR_BOARD_PCICFG		0x1000
#define BCSR_BOARD_SD0_WP		0x4000
#define BCSR_BOARD_SD1_WP		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_SWRESET_RESET		0x0080

/* PCMCIA Db1x00 specific defines */
#define PCMCIA_MAX_SOCK 1
#define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK+1)

/* VPP/VCC */
#define SET_VCC_VPP(VCC, VPP, SLOT)\
	((((VCC)<<2) | ((VPP)<<0)) << ((SLOT)*8))

/* SD controller macros */
/*
 * Detect card.
 */
#define mmc_card_inserted(_n_, _res_) \
	do { \
		BCSR * const bcsr = (BCSR *)0xAE000000; \
		unsigned long mmc_wp, board_specific; \
		if ((_n_)) { \
			mmc_wp = BCSR_BOARD_SD1_WP; \
		} else { \
			mmc_wp = BCSR_BOARD_SD0_WP; \
		} \
		board_specific = au_readl((unsigned long)(&bcsr->specific)); \
		if (!(board_specific & mmc_wp)) {/* low means card present */ \
			*(int *)(_res_) = 1; \
		} else { \
			*(int *)(_res_) = 0; \
		} \
	} while (0)

/*
 * Apply power to card slot(s).
 */
#define mmc_power_on(_n_) \
	do { \
		BCSR * const bcsr = (BCSR *)0xAE000000; \
		unsigned long mmc_pwr, mmc_wp, board_specific; \
		if ((_n_)) { \
			mmc_pwr = BCSR_BOARD_SD1_PWR; \
			mmc_wp = BCSR_BOARD_SD1_WP; \
		} else { \
			mmc_pwr = BCSR_BOARD_SD0_PWR; \
			mmc_wp = BCSR_BOARD_SD0_WP; \
		} \
		board_specific = au_readl((unsigned long)(&bcsr->specific)); \
		if (!(board_specific & mmc_wp)) {/* low means card present */ \
			board_specific |= mmc_pwr; \
			au_writel(board_specific, (int)(&bcsr->specific)); \
			au_sync(); \
		} \
	} while (0)


/* NAND defines */
/* Timing values as described in databook, * ns value stripped of
 * lower 2 bits.
 * These defines are here rather than an SOC1550 generic file because
 * the parts chosen on another board may be different and may require
 * different timings.
 */
#define NAND_T_H			(18 >> 2)
#define NAND_T_PUL			(30 >> 2)
#define NAND_T_SU			(30 >> 2)
#define NAND_T_WH			(30 >> 2)

/* Bitfield shift amounts */
#define NAND_T_H_SHIFT		0
#define NAND_T_PUL_SHIFT	4
#define NAND_T_SU_SHIFT		8
#define NAND_T_WH_SHIFT		12

#define NAND_TIMING	((NAND_T_H   & 0xF)	<< NAND_T_H_SHIFT)   | \
			((NAND_T_PUL & 0xF)	<< NAND_T_PUL_SHIFT) | \
			((NAND_T_SU  & 0xF)	<< NAND_T_SU_SHIFT)  | \
			((NAND_T_WH  & 0xF)	<< NAND_T_WH_SHIFT)

#endif /* __ASM_DB1X00_H */