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
  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