Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[sfrench/cifs-2.6.git] / include / asm-mips / mach-db1x00 / db1x00.h
1 /*
2  * AMD Alchemy DB1x00 Reference Boards
3  *
4  * Copyright 2001 MontaVista Software Inc.
5  * Author: MontaVista Software, Inc.
6  *              ppopov@mvista.com or source@mvista.com
7  * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
8  *
9  * ########################################################################
10  *
11  *  This program is free software; you can distribute it and/or modify it
12  *  under the terms of the GNU General Public License (Version 2) as
13  *  published by the Free Software Foundation.
14  *
15  *  This program is distributed in the hope it will be useful, but WITHOUT
16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
18  *  for more details.
19  *
20  *  You should have received a copy of the GNU General Public License along
21  *  with this program; if not, write to the Free Software Foundation, Inc.,
22  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
23  *
24  * ########################################################################
25  *
26  *
27  */
28 #ifndef __ASM_DB1X00_H
29 #define __ASM_DB1X00_H
30
31 #include <linux/config.h>
32
33 #ifdef CONFIG_MIPS_DB1550
34 #define BCSR_KSEG1_ADDR 0xAF000000
35 #define NAND_PHYS_ADDR  0x20000000
36 #else
37 #define BCSR_KSEG1_ADDR 0xAE000000
38 #endif
39
40 /*
41  * Overlay data structure of the Db1x00 board registers.
42  * Registers located at physical 0E0000xx, KSEG1 0xAE0000xx
43  */
44 typedef volatile struct
45 {
46         /*00*/  unsigned short whoami;
47         unsigned short reserved0;
48         /*04*/  unsigned short status;
49         unsigned short reserved1;
50         /*08*/  unsigned short switches;
51         unsigned short reserved2;
52         /*0C*/  unsigned short resets;
53         unsigned short reserved3;
54         /*10*/  unsigned short pcmcia;
55         unsigned short reserved4;
56         /*14*/  unsigned short specific;
57         unsigned short reserved5;
58         /*18*/  unsigned short leds;
59         unsigned short reserved6;
60         /*1C*/  unsigned short swreset;
61         unsigned short reserved7;
62
63 } BCSR;
64
65
66 /*
67  * Register/mask bit definitions for the BCSRs
68  */
69 #define BCSR_WHOAMI_DCID                0x000F
70 #define BCSR_WHOAMI_CPLD                0x00F0
71 #define BCSR_WHOAMI_BOARD               0x0F00
72
73 #define BCSR_STATUS_PC0VS               0x0003
74 #define BCSR_STATUS_PC1VS               0x000C
75 #define BCSR_STATUS_PC0FI               0x0010
76 #define BCSR_STATUS_PC1FI               0x0020
77 #define BCSR_STATUS_FLASHBUSY           0x0100
78 #define BCSR_STATUS_ROMBUSY             0x0400
79 #define BCSR_STATUS_SWAPBOOT            0x2000
80 #define BCSR_STATUS_FLASHDEN            0xC000
81
82 #define BCSR_SWITCHES_DIP               0x00FF
83 #define BCSR_SWITCHES_DIP_1             0x0080
84 #define BCSR_SWITCHES_DIP_2             0x0040
85 #define BCSR_SWITCHES_DIP_3             0x0020
86 #define BCSR_SWITCHES_DIP_4             0x0010
87 #define BCSR_SWITCHES_DIP_5             0x0008
88 #define BCSR_SWITCHES_DIP_6             0x0004
89 #define BCSR_SWITCHES_DIP_7             0x0002
90 #define BCSR_SWITCHES_DIP_8             0x0001
91 #define BCSR_SWITCHES_ROTARY            0x0F00
92
93 #define BCSR_RESETS_PHY0                0x0001
94 #define BCSR_RESETS_PHY1                0x0002
95 #define BCSR_RESETS_DC                  0x0004
96 #define BCSR_RESETS_FIR_SEL             0x2000
97 #define BCSR_RESETS_IRDA_MODE_MASK      0xC000
98 #define BCSR_RESETS_IRDA_MODE_FULL      0x0000
99 #define BCSR_RESETS_IRDA_MODE_OFF       0x4000
100 #define BCSR_RESETS_IRDA_MODE_2_3       0x8000
101 #define BCSR_RESETS_IRDA_MODE_1_3       0xC000
102
103 #define BCSR_PCMCIA_PC0VPP              0x0003
104 #define BCSR_PCMCIA_PC0VCC              0x000C
105 #define BCSR_PCMCIA_PC0DRVEN            0x0010
106 #define BCSR_PCMCIA_PC0RST              0x0080
107 #define BCSR_PCMCIA_PC1VPP              0x0300
108 #define BCSR_PCMCIA_PC1VCC              0x0C00
109 #define BCSR_PCMCIA_PC1DRVEN            0x1000
110 #define BCSR_PCMCIA_PC1RST              0x8000
111
112 #define BCSR_BOARD_PCIM66EN             0x0001
113 #define BCSR_BOARD_SD0_PWR              0x0040
114 #define BCSR_BOARD_SD1_PWR              0x0080
115 #define BCSR_BOARD_PCIM33               0x0100
116 #define BCSR_BOARD_GPIO200RST           0x0400
117 #define BCSR_BOARD_PCICFG               0x1000
118 #define BCSR_BOARD_SD0_WP               0x4000
119 #define BCSR_BOARD_SD1_WP               0x8000
120
121 #define BCSR_LEDS_DECIMALS              0x0003
122 #define BCSR_LEDS_LED0                  0x0100
123 #define BCSR_LEDS_LED1                  0x0200
124 #define BCSR_LEDS_LED2                  0x0400
125 #define BCSR_LEDS_LED3                  0x0800
126
127 #define BCSR_SWRESET_RESET              0x0080
128
129 /* PCMCIA Db1x00 specific defines */
130 #define PCMCIA_MAX_SOCK 1
131 #define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK+1)
132
133 /* VPP/VCC */
134 #define SET_VCC_VPP(VCC, VPP, SLOT)\
135         ((((VCC)<<2) | ((VPP)<<0)) << ((SLOT)*8))
136
137 /* SD controller macros */
138 /*
139  * Detect card.
140  */
141 #define mmc_card_inserted(_n_, _res_) \
142         do { \
143                 BCSR * const bcsr = (BCSR *)0xAE000000; \
144                 unsigned long mmc_wp, board_specific; \
145                 if ((_n_)) { \
146                         mmc_wp = BCSR_BOARD_SD1_WP; \
147                 } else { \
148                         mmc_wp = BCSR_BOARD_SD0_WP; \
149                 } \
150                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
151                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
152                         *(int *)(_res_) = 1; \
153                 } else { \
154                         *(int *)(_res_) = 0; \
155                 } \
156         } while (0)
157
158 /*
159  * Apply power to card slot(s).
160  */
161 #define mmc_power_on(_n_) \
162         do { \
163                 BCSR * const bcsr = (BCSR *)0xAE000000; \
164                 unsigned long mmc_pwr, mmc_wp, board_specific; \
165                 if ((_n_)) { \
166                         mmc_pwr = BCSR_BOARD_SD1_PWR; \
167                         mmc_wp = BCSR_BOARD_SD1_WP; \
168                 } else { \
169                         mmc_pwr = BCSR_BOARD_SD0_PWR; \
170                         mmc_wp = BCSR_BOARD_SD0_WP; \
171                 } \
172                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
173                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
174                         board_specific |= mmc_pwr; \
175                         au_writel(board_specific, (int)(&bcsr->specific)); \
176                         au_sync(); \
177                 } \
178         } while (0)
179
180
181 /* NAND defines */
182 /* Timing values as described in databook, * ns value stripped of
183  * lower 2 bits.
184  * These defines are here rather than an SOC1550 generic file because
185  * the parts chosen on another board may be different and may require
186  * different timings.
187  */
188 #define NAND_T_H                        (18 >> 2)
189 #define NAND_T_PUL                      (30 >> 2)
190 #define NAND_T_SU                       (30 >> 2)
191 #define NAND_T_WH                       (30 >> 2)
192
193 /* Bitfield shift amounts */
194 #define NAND_T_H_SHIFT          0
195 #define NAND_T_PUL_SHIFT        4
196 #define NAND_T_SU_SHIFT         8
197 #define NAND_T_WH_SHIFT         12
198
199 #define NAND_TIMING     ((NAND_T_H   & 0xF)     << NAND_T_H_SHIFT)   | \
200                         ((NAND_T_PUL & 0xF)     << NAND_T_PUL_SHIFT) | \
201                         ((NAND_T_SU  & 0xF)     << NAND_T_SU_SHIFT)  | \
202                         ((NAND_T_WH  & 0xF)     << NAND_T_WH_SHIFT)
203
204 #endif /* __ASM_DB1X00_H */
205