upgrade to linux 2.6.10-1.12_FC2
[linux-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  *
8  * ########################################################################
9  *
10  *  This program is free software; you can distribute it and/or modify it
11  *  under the terms of the GNU General Public License (Version 2) as
12  *  published by the Free Software Foundation.
13  *
14  *  This program is distributed in the hope it will be useful, but WITHOUT
15  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
17  *  for more details.
18  *
19  *  You should have received a copy of the GNU General Public License along
20  *  with this program; if not, write to the Free Software Foundation, Inc.,
21  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
22  *
23  * ########################################################################
24  *
25  * 
26  */
27 #ifndef __ASM_DB1X00_H
28 #define __ASM_DB1X00_H
29
30 #ifdef CONFIG_MIPS_DB1550
31 #define BCSR_KSEG1_ADDR 0xAF000000
32 #define NAND_PHYS_ADDR  0x20000000
33 #else
34 #define BCSR_KSEG1_ADDR 0xAE000000
35 #endif
36
37 /*
38  * Overlay data structure of the Db1x00 board registers.
39  * Registers located at physical 0E0000xx, KSEG1 0xAE0000xx
40  */
41 typedef volatile struct
42 {
43         /*00*/  unsigned short whoami;
44         unsigned short reserved0;
45         /*04*/  unsigned short status;
46         unsigned short reserved1;
47         /*08*/  unsigned short switches;
48         unsigned short reserved2;
49         /*0C*/  unsigned short resets;
50         unsigned short reserved3;
51         /*10*/  unsigned short pcmcia;
52         unsigned short reserved4;
53         /*14*/  unsigned short specific;
54         unsigned short reserved5;
55         /*18*/  unsigned short leds;
56         unsigned short reserved6;
57         /*1C*/  unsigned short swreset;
58         unsigned short reserved7;
59
60 } BCSR;
61
62
63 /*
64  * Register/mask bit definitions for the BCSRs
65  */
66 #define BCSR_WHOAMI_DCID                0x000F
67 #define BCSR_WHOAMI_CPLD                0x00F0
68 #define BCSR_WHOAMI_BOARD               0x0F00
69
70 #define BCSR_STATUS_PC0VS               0x0003
71 #define BCSR_STATUS_PC1VS               0x000C
72 #define BCSR_STATUS_PC0FI               0x0010
73 #define BCSR_STATUS_PC1FI               0x0020
74 #define BCSR_STATUS_FLASHBUSY           0x0100
75 #define BCSR_STATUS_ROMBUSY             0x0400
76 #define BCSR_STATUS_SWAPBOOT            0x2000
77 #define BCSR_STATUS_FLASHDEN            0xC000
78
79 #define BCSR_SWITCHES_DIP               0x00FF
80 #define BCSR_SWITCHES_DIP_1             0x0080
81 #define BCSR_SWITCHES_DIP_2             0x0040
82 #define BCSR_SWITCHES_DIP_3             0x0020
83 #define BCSR_SWITCHES_DIP_4             0x0010
84 #define BCSR_SWITCHES_DIP_5             0x0008
85 #define BCSR_SWITCHES_DIP_6             0x0004
86 #define BCSR_SWITCHES_DIP_7             0x0002
87 #define BCSR_SWITCHES_DIP_8             0x0001
88 #define BCSR_SWITCHES_ROTARY            0x0F00
89
90 #define BCSR_RESETS_PHY0                0x0001
91 #define BCSR_RESETS_PHY1                0x0002
92 #define BCSR_RESETS_DC                  0x0004
93 #define BCSR_RESETS_FIR_SEL             0x2000
94 #define BCSR_RESETS_IRDA_MODE_MASK      0xC000
95 #define BCSR_RESETS_IRDA_MODE_FULL      0x0000
96 #define BCSR_RESETS_IRDA_MODE_OFF       0x4000
97 #define BCSR_RESETS_IRDA_MODE_2_3       0x8000
98 #define BCSR_RESETS_IRDA_MODE_1_3       0xC000
99
100 #define BCSR_PCMCIA_PC0VPP              0x0003
101 #define BCSR_PCMCIA_PC0VCC              0x000C
102 #define BCSR_PCMCIA_PC0DRVEN            0x0010
103 #define BCSR_PCMCIA_PC0RST              0x0080
104 #define BCSR_PCMCIA_PC1VPP              0x0300
105 #define BCSR_PCMCIA_PC1VCC              0x0C00
106 #define BCSR_PCMCIA_PC1DRVEN            0x1000
107 #define BCSR_PCMCIA_PC1RST              0x8000
108
109 #define BCSR_BOARD_PCIM66EN             0x0001
110 #define BCSR_BOARD_SD0_PWR              0x0040
111 #define BCSR_BOARD_SD1_PWR              0x0080
112 #define BCSR_BOARD_PCIM33               0x0100
113 #define BCSR_BOARD_GPIO200RST           0x0400
114 #define BCSR_BOARD_PCICFG               0x1000
115 #define BCSR_BOARD_SD0_WP               0x4000
116 #define BCSR_BOARD_SD1_WP               0x8000
117
118 #define BCSR_LEDS_DECIMALS              0x0003
119 #define BCSR_LEDS_LED0                  0x0100
120 #define BCSR_LEDS_LED1                  0x0200
121 #define BCSR_LEDS_LED2                  0x0400
122 #define BCSR_LEDS_LED3                  0x0800
123
124 #define BCSR_SWRESET_RESET              0x0080
125
126 /* PCMCIA Db1x00 specific defines */
127 #define PCMCIA_MAX_SOCK 1
128 #define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK+1)
129
130 /* VPP/VCC */
131 #define SET_VCC_VPP(VCC, VPP, SLOT)\
132         ((((VCC)<<2) | ((VPP)<<0)) << ((SLOT)*8))
133
134 /* SD controller macros */
135 /*
136  * Detect card.
137  */
138 #define mmc_card_inserted(_n_, _res_) \
139         do { \
140                 BCSR * const bcsr = (BCSR *)0xAE000000; \
141                 unsigned long mmc_wp, board_specific; \
142                 if ((_n_)) { \
143                         mmc_wp = BCSR_BOARD_SD1_WP; \
144                 } else { \
145                         mmc_wp = BCSR_BOARD_SD0_WP; \
146                 } \
147                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
148                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
149                         *(int *)(_res_) = 1; \
150                 } else { \
151                         *(int *)(_res_) = 0; \
152                 } \
153         } while (0)
154
155 /*
156  * Apply power to card slot(s).
157  */
158 #define mmc_power_on(_n_) \
159         do { \
160                 BCSR * const bcsr = (BCSR *)0xAE000000; \
161                 unsigned long mmc_pwr, mmc_wp, board_specific; \
162                 if ((_n_)) { \
163                         mmc_pwr = BCSR_BOARD_SD1_PWR; \
164                         mmc_wp = BCSR_BOARD_SD1_WP; \
165                 } else { \
166                         mmc_pwr = BCSR_BOARD_SD0_PWR; \
167                         mmc_wp = BCSR_BOARD_SD0_WP; \
168                 } \
169                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
170                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
171                         board_specific |= mmc_pwr; \
172                         au_writel(board_specific, (int)(&bcsr->specific)); \
173                         au_sync(); \
174                 } \
175         } while (0)
176
177
178 /* NAND defines */
179 /* Timing values as described in databook, * ns value stripped of
180  * lower 2 bits.
181  * These defines are here rather than an SOC1550 generic file because
182  * the parts chosen on another board may be different and may require
183  * different timings.
184  */
185 #define NAND_T_H                        (18 >> 2)
186 #define NAND_T_PUL                      (30 >> 2)
187 #define NAND_T_SU                       (30 >> 2)
188 #define NAND_T_WH                       (30 >> 2)
189
190 /* Bitfield shift amounts */
191 #define NAND_T_H_SHIFT          0
192 #define NAND_T_PUL_SHIFT        4
193 #define NAND_T_SU_SHIFT         8
194 #define NAND_T_WH_SHIFT         12
195
196 #define NAND_TIMING     ((NAND_T_H   & 0xF)     << NAND_T_H_SHIFT)   | \
197                         ((NAND_T_PUL & 0xF)     << NAND_T_PUL_SHIFT) | \
198                         ((NAND_T_SU  & 0xF)     << NAND_T_SU_SHIFT)  | \
199                         ((NAND_T_WH  & 0xF)     << NAND_T_WH_SHIFT)
200
201 #endif /* __ASM_DB1X00_H */
202