release/src/linux/linux/include/asm-mips/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 #define DBDMA_AC97_TX_CHAN DSCR_CMD0_PSC1_TX
  34 #define DBDMA_AC97_RX_CHAN DSCR_CMD0_PSC1_RX
  35 #define SPI_PSC_BASE        PSC0_BASE_ADDR
  36 #define AC97_PSC_BASE       PSC1_BASE_ADDR
  37 #define SMBUS_PSC_BASE      PSC2_BASE_ADDR
  38 #define I2S_PSC_BASE        PSC3_BASE_ADDR
  39
  40 #else
  41 #define BCSR_KSEG1_ADDR 0xAE000000
  42 #endif
  43
  44 /*
  45  * Overlay data structure of the Db1x00 board registers.
  46  * Registers located at physical 0E0000xx, KSEG1 0xAE0000xx
  47  */
  48 typedef volatile struct
  49 {
  50         /*00*/  unsigned short whoami;
  51                         unsigned short reserved0;
  52         /*04*/  unsigned short status;
  53                         unsigned short reserved1;
  54         /*08*/  unsigned short switches;
  55                         unsigned short reserved2;
  56         /*0C*/  unsigned short resets;
  57                         unsigned short reserved3;
  58         /*10*/  unsigned short pcmcia;
  59                         unsigned short reserved4;
  60         /*14*/  unsigned short specific;
  61                         unsigned short reserved5;
  62         /*18*/  unsigned short leds;
  63                         unsigned short reserved6;
  64         /*1C*/  unsigned short swreset;
  65                         unsigned short reserved7;
  66
  67 } BCSR;
  68
  69
  70 /*
  71  * Register/mask bit definitions for the BCSRs
  72  */
  73 #define BCSR_WHOAMI_DCID                0x000F
  74 #define BCSR_WHOAMI_CPLD                0x00F0
  75 #define BCSR_WHOAMI_BOARD               0x0F00
  76
  77 #define BCSR_STATUS_PC0VS               0x0003
  78 #define BCSR_STATUS_PC1VS               0x000C
  79 #define BCSR_STATUS_PC0FI               0x0010
  80 #define BCSR_STATUS_PC1FI               0x0020
  81 #define BCSR_STATUS_FLASHBUSY           0x0100
  82 #define BCSR_STATUS_ROMBUSY             0x0400
  83 #define BCSR_STATUS_SWAPBOOT            0x2000
  84 #define BCSR_STATUS_FLASHDEN            0xC000
  85
  86 #define BCSR_SWITCHES_DIP               0x00FF
  87 #define BCSR_SWITCHES_DIP_1             0x0080
  88 #define BCSR_SWITCHES_DIP_2             0x0040
  89 #define BCSR_SWITCHES_DIP_3             0x0020
  90 #define BCSR_SWITCHES_DIP_4             0x0010
  91 #define BCSR_SWITCHES_DIP_5             0x0008
  92 #define BCSR_SWITCHES_DIP_6             0x0004
  93 #define BCSR_SWITCHES_DIP_7             0x0002
  94 #define BCSR_SWITCHES_DIP_8             0x0001
  95 #define BCSR_SWITCHES_ROTARY            0x0F00
  96
  97 #define BCSR_RESETS_PHY0                0x0001
  98 #define BCSR_RESETS_PHY1                0x0002
  99 #define BCSR_RESETS_DC                  0x0004
 100 #define BCSR_RESETS_FIR_SEL             0x2000
 101 #define BCSR_RESETS_IRDA_MODE_MASK      0xC000
 102 #define BCSR_RESETS_IRDA_MODE_FULL      0x0000
 103 #define BCSR_RESETS_IRDA_MODE_OFF       0x4000
 104 #define BCSR_RESETS_IRDA_MODE_2_3       0x8000
 105 #define BCSR_RESETS_IRDA_MODE_1_3       0xC000
 106
 107 #define BCSR_PCMCIA_PC0VPP              0x0003
 108 #define BCSR_PCMCIA_PC0VCC              0x000C
 109 #define BCSR_PCMCIA_PC0DRVEN            0x0010
 110 #define BCSR_PCMCIA_PC0RST              0x0080
 111 #define BCSR_PCMCIA_PC1VPP              0x0300
 112 #define BCSR_PCMCIA_PC1VCC              0x0C00
 113 #define BCSR_PCMCIA_PC1DRVEN            0x1000
 114 #define BCSR_PCMCIA_PC1RST              0x8000
 115
 116 #define BCSR_BOARD_PCIM66EN             0x0001
 117 #define BCSR_BOARD_SD0_PWR              0x0040
 118 #define BCSR_BOARD_SD1_PWR              0x0080
 119 #define BCSR_BOARD_PCIM33               0x0100
 120 #define BCSR_BOARD_GPIO200RST           0x0400
 121 #define BCSR_BOARD_PCICFG               0x1000
 122 #define BCSR_BOARD_SD0_WP               0x4000
 123 #define BCSR_BOARD_SD1_WP               0x8000
 124
 125 #define BCSR_LEDS_DECIMALS              0x0003
 126 #define BCSR_LEDS_LED0                  0x0100
 127 #define BCSR_LEDS_LED1                  0x0200
 128 #define BCSR_LEDS_LED2                  0x0400
 129 #define BCSR_LEDS_LED3                  0x0800
 130
 131 #define BCSR_SWRESET_RESET              0x0080
 132
 133 /* PCMCIA Db1x00 specific defines */
 134 #define PCMCIA_MAX_SOCK 1
 135 #define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK+1)
 136
 137 /* VPP/VCC */
 138 #define SET_VCC_VPP(VCC, VPP, SLOT)\
 139         ((((VCC)<<2) | ((VPP)<<0)) << ((SLOT)*8))
 140
 141 /* MTD CONFIG OPTIONS */
 142 #if defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER)
 143 #define DB1X00_BOTH_BANKS
 144 #elif defined(CONFIG_MTD_DB1X00_BOOT) && !defined(CONFIG_MTD_DB1X00_USER)
 145 #define DB1X00_BOOT_ONLY
 146 #elif !defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER)
 147 #define DB1X00_USER_ONLY
 148 #endif
 149
 150 /* SD controller macros */
 151 /*
 152  * Detect card.
 153  */
 154 #define mmc_card_inserted(_n_, _res_) \
 155         do { \
 156                 BCSR * const bcsr = (BCSR *)0xAE000000; \
 157                 unsigned long mmc_wp, board_specific; \
 158                 if ((_n_)) { \
 159                         mmc_wp = BCSR_BOARD_SD1_WP; \
 160                 } else { \
 161                         mmc_wp = BCSR_BOARD_SD0_WP; \
 162                 } \
 163                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
 164                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
 165                         *(int *)(_res_) = 1; \
 166                 } else { \
 167                         *(int *)(_res_) = 0; \
 168                 } \
 169         } while (0)
 170
 171 /*
 172  * Apply power to card slot(s).
 173  */
 174 #define mmc_power_on(_n_) \
 175         do { \
 176                 BCSR * const bcsr = (BCSR *)0xAE000000; \
 177                 unsigned long mmc_pwr, mmc_wp, board_specific; \
 178                 if ((_n_)) { \
 179                         mmc_pwr = BCSR_BOARD_SD1_PWR; \
 180                         mmc_wp = BCSR_BOARD_SD1_WP; \
 181                 } else { \
 182                         mmc_pwr = BCSR_BOARD_SD0_PWR; \
 183                         mmc_wp = BCSR_BOARD_SD0_WP; \
 184                 } \
 185                 board_specific = au_readl((unsigned long)(&bcsr->specific)); \
 186                 if (!(board_specific & mmc_wp)) {/* low means card present */ \
 187                         board_specific |= mmc_pwr; \
 188                         au_writel(board_specific, (int)(&bcsr->specific)); \
 189                         au_sync(); \
 190                 } \
 191         } while (0)
 192
 193 #endif /* __ASM_DB1X00_H */
 194