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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
32 #ifdef CONFIG_MIPS_DB1550
33 #define BCSR_KSEG1_ADDR 0xAF000000
34 #define NAND_PHYS_ADDR  0x20000000
35 #else
36 #define BCSR_KSEG1_ADDR 0xAE000000
37 #endif
38
39 /*
40  * Overlay data structure of the Db1x00 board registers.
41  * Registers located at physical 0E0000xx, KSEG1 0xAE0000xx
42  */
43 typedef volatile struct
44 {
45         /*00*/  unsigned short whoami;
46         unsigned short reserved0;
47         /*04*/  unsigned short status;
48         unsigned short reserved1;
49         /*08*/  unsigned short switches;
50         unsigned short reserved2;
51         /*0C*/  unsigned short resets;
52         unsigned short reserved3;
53         /*10*/  unsigned short pcmcia;
54         unsigned short reserved4;
55         /*14*/  unsigned short specific;
56         unsigned short reserved5;
57         /*18*/  unsigned short leds;
58         unsigned short reserved6;
59         /*1C*/  unsigned short swreset;
60         unsigned short reserved7;
61
62 } BCSR;
63
64
65 /*
66  * Register/mask bit definitions for the BCSRs
67  */
68 #define BCSR_WHOAMI_DCID                0x000F
69 #define BCSR_WHOAMI_CPLD                0x00F0
70 #define BCSR_WHOAMI_BOARD               0x0F00
71
72 #define BCSR_STATUS_PC0VS               0x0003
73 #define BCSR_STATUS_PC1VS               0x000C
74 #define BCSR_STATUS_PC0FI               0x0010
75 #define BCSR_STATUS_PC1FI               0x0020
76 #define BCSR_STATUS_FLASHBUSY           0x0100
77 #define BCSR_STATUS_ROMBUSY             0x0400
78 #define BCSR_STATUS_SWAPBOOT            0x2000
79 #define BCSR_STATUS_FLASHDEN            0xC000
80
81 #define BCSR_SWITCHES_DIP               0x00FF
82 #define BCSR_SWITCHES_DIP_1             0x0080
83 #define BCSR_SWITCHES_DIP_2             0x0040
84 #define BCSR_SWITCHES_DIP_3             0x0020
85 #define BCSR_SWITCHES_DIP_4             0x0010
86 #define BCSR_SWITCHES_DIP_5             0x0008
87 #define BCSR_SWITCHES_DIP_6             0x0004
88 #define BCSR_SWITCHES_DIP_7             0x0002
89 #define BCSR_SWITCHES_DIP_8             0x0001
90 #define BCSR_SWITCHES_ROTARY            0x0F00
91
92 #define BCSR_RESETS_PHY0                0x0001
93 #define BCSR_RESETS_PHY1                0x0002
94 #define BCSR_RESETS_DC                  0x0004
95 #define BCSR_RESETS_FIR_SEL             0x2000
96 #define BCSR_RESETS_IRDA_MODE_MASK      0xC000
97 #define BCSR_RESETS_IRDA_MODE_FULL      0x0000
98 #define BCSR_RESETS_IRDA_MODE_OFF       0x4000
99 #define BCSR_RESETS_IRDA_MODE_2_3       0x8000
100 #define BCSR_RESETS_IRDA_MODE_1_3       0xC000
101
102 #define BCSR_PCMCIA_PC0VPP              0x0003
103 #define BCSR_PCMCIA_PC0VCC              0x000C
104 #define BCSR_PCMCIA_PC0DRVEN            0x0010
105 #define BCSR_PCMCIA_PC0RST              0x0080
106 #define BCSR_PCMCIA_PC1VPP              0x0300
107 #define BCSR_PCMCIA_PC1VCC              0x0C00
108 #define BCSR_PCMCIA_PC1DRVEN            0x1000
109 #define BCSR_PCMCIA_PC1RST              0x8000
110
111 #define BCSR_BOARD_PCIM66EN             0x0001
112 #define BCSR_BOARD_SD0_PWR              0x0040
113 #define BCSR_BOARD_SD1_PWR              0x0080
114 #define BCSR_BOARD_PCIM33               0x0100
115 #define BCSR_BOARD_GPIO200RST           0x0400
116 #define BCSR_BOARD_PCICFG               0x1000
117 #define BCSR_BOARD_SD0_WP               0x4000
118 #define BCSR_BOARD_SD1_WP               0x8000
119
120 #define BCSR_LEDS_DECIMALS              0x0003
121 #define BCSR_LEDS_LED0                  0x0100
122 #define BCSR_LEDS_LED1                  0x0200
123 #define BCSR_LEDS_LED2                  0x0400
124 #define BCSR_LEDS_LED3                  0x0800
125
126 #define BCSR_SWRESET_RESET              0x0080
127
128 /* PCMCIA Db1x00 specific defines */
129 #define PCMCIA_MAX_SOCK 1
130 #define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK+1)
131
132 /* VPP/VCC */
133 #define SET_VCC_VPP(VCC, VPP, SLOT)\
134         ((((VCC)<<2) | ((VPP)<<0)) << ((SLOT)*8))
135
136 /* SD controller macros */
137 /*
138  * Detect card.
139  */
140 #define mmc_card_inserted(_n_, _res_) \
141         do { \
142                 BCSR * const bcsr = (BCSR *)0xAE000000; \
143                 unsigned long mmc_wp, board_specific; \
144                 if ((_n_)) { \
145                         mmc_wp = BCSR_BOARD_SD1_WP; \
146                 } else { \
147                         mmc_wp = BCSR_BOARD_SD0_WP; \
148                 } \
149                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
150                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
151                         *(int *)(_res_) = 1; \
152                 } else { \
153                         *(int *)(_res_) = 0; \
154                 } \
155         } while (0)
156
157 /*
158  * Apply power to card slot(s).
159  */
160 #define mmc_power_on(_n_) \
161         do { \
162                 BCSR * const bcsr = (BCSR *)0xAE000000; \
163                 unsigned long mmc_pwr, mmc_wp, board_specific; \
164                 if ((_n_)) { \
165                         mmc_pwr = BCSR_BOARD_SD1_PWR; \
166                         mmc_wp = BCSR_BOARD_SD1_WP; \
167                 } else { \
168                         mmc_pwr = BCSR_BOARD_SD0_PWR; \
169                         mmc_wp = BCSR_BOARD_SD0_WP; \
170                 } \
171                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
172                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
173                         board_specific |= mmc_pwr; \
174                         au_writel(board_specific, (int)(&bcsr->specific)); \
175                         au_sync(); \
176                 } \
177         } while (0)
178
179
180 /* NAND defines */
181 /* Timing values as described in databook, * ns value stripped of
182  * lower 2 bits.
183  * These defines are here rather than an SOC1550 generic file because
184  * the parts chosen on another board may be different and may require
185  * different timings.
186  */
187 #define NAND_T_H                        (18 >> 2)
188 #define NAND_T_PUL                      (30 >> 2)
189 #define NAND_T_SU                       (30 >> 2)
190 #define NAND_T_WH                       (30 >> 2)
191
192 /* Bitfield shift amounts */
193 #define NAND_T_H_SHIFT          0
194 #define NAND_T_PUL_SHIFT        4
195 #define NAND_T_SU_SHIFT         8
196 #define NAND_T_WH_SHIFT         12
197
198 #define NAND_TIMING     ((NAND_T_H   & 0xF)     << NAND_T_H_SHIFT)   | \
199                         ((NAND_T_PUL & 0xF)     << NAND_T_PUL_SHIFT) | \
200                         ((NAND_T_SU  & 0xF)     << NAND_T_SU_SHIFT)  | \
201                         ((NAND_T_WH  & 0xF)     << NAND_T_WH_SHIFT)
202 #define NAND_CS 1
203
204 /* should be done by yamon */
205 #define NAND_STCFG  0x00400005 /* 8-bit NAND */
206 #define NAND_STTIME 0x00007774 /* valid for 396MHz SD=2 only */
207 #define NAND_STADDR 0x12000FFF /* physical address 0x20000000 */
208
209 #endif /* __ASM_DB1X00_H */
210