include/asm-arm/arch-at91/at91sam9_smc.h

   1 /*
   2  * include/asm-arm/arch-at91/at91sam9_smc.h
   3  *
   4  * Static Memory Controllers (SMC) - System peripherals registers.
   5  * Based on AT91SAM9261 datasheet revision D.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  */
  12
  13 #ifndef AT91SAM9_SMC_H
  14 #define AT91SAM9_SMC_H
  15
  16 #define AT91_SMC_SETUP(n)       (AT91_SMC + 0x00 + ((n)*0x10))  /* Setup Register for CS n */
  17 #define         AT91_SMC_NWESETUP       (0x3f << 0)                     /* NWE Setup Length */
  18 #define                 AT91_SMC_NWESETUP_(x)   ((x) << 0)
  19 #define         AT91_SMC_NCS_WRSETUP    (0x3f << 8)                     /* NCS Setup Length in Write Access */
  20 #define                 AT91_SMC_NCS_WRSETUP_(x)        ((x) << 8)
  21 #define         AT91_SMC_NRDSETUP       (0x3f << 16)                    /* NRD Setup Length */
  22 #define                 AT91_SMC_NRDSETUP_(x)   ((x) << 16)
  23 #define         AT91_SMC_NCS_RDSETUP    (0x3f << 24)                    /* NCS Setup Length in Read Access */
  24 #define                 AT91_SMC_NCS_RDSETUP_(x)        ((x) << 24)
  25
  26 #define AT91_SMC_PULSE(n)       (AT91_SMC + 0x04 + ((n)*0x10))  /* Pulse Register for CS n */
  27 #define         AT91_SMC_NWEPULSE       (0x7f <<  0)                    /* NWE Pulse Length */
  28 #define                 AT91_SMC_NWEPULSE_(x)   ((x) << 0)
  29 #define         AT91_SMC_NCS_WRPULSE    (0x7f <<  8)                    /* NCS Pulse Length in Write Access */
  30 #define                 AT91_SMC_NCS_WRPULSE_(x)((x) << 8)
  31 #define         AT91_SMC_NRDPULSE       (0x7f << 16)                    /* NRD Pulse Length */
  32 #define                 AT91_SMC_NRDPULSE_(x)   ((x) << 16)
  33 #define         AT91_SMC_NCS_RDPULSE    (0x7f << 24)                    /* NCS Pulse Length in Read Access */
  34 #define                 AT91_SMC_NCS_RDPULSE_(x)((x) << 24)
  35
  36 #define AT91_SMC_CYCLE(n)       (AT91_SMC + 0x08 + ((n)*0x10))  /* Cycle Register for CS n */
  37 #define         AT91_SMC_NWECYCLE       (0x1ff << 0 )                   /* Total Write Cycle Length */
  38 #define                 AT91_SMC_NWECYCLE_(x)   ((x) << 0)
  39 #define         AT91_SMC_NRDCYCLE       (0x1ff << 16)                   /* Total Read Cycle Length */
  40 #define                 AT91_SMC_NRDCYCLE_(x)   ((x) << 16)
  41
  42 #define AT91_SMC_MODE(n)        (AT91_SMC + 0x0c + ((n)*0x10))  /* Mode Register for CS n */
  43 #define         AT91_SMC_READMODE       (1 <<  0)                       /* Read Mode */
  44 #define         AT91_SMC_WRITEMODE      (1 <<  1)                       /* Write Mode */
  45 #define         AT91_SMC_EXNWMODE       (3 <<  4)                       /* NWAIT Mode */
  46 #define                 AT91_SMC_EXNWMODE_DISABLE       (0 << 4)
  47 #define                 AT91_SMC_EXNWMODE_FROZEN        (2 << 4)
  48 #define                 AT91_SMC_EXNWMODE_READY         (3 << 4)
  49 #define         AT91_SMC_BAT            (1 <<  8)                       /* Byte Access Type */
  50 #define                 AT91_SMC_BAT_SELECT             (0 << 8)
  51 #define                 AT91_SMC_BAT_WRITE              (1 << 8)
  52 #define         AT91_SMC_DBW            (3 << 12)                       /* Data Bus Width */
  53 #define                 AT91_SMC_DBW_8                  (0 << 12)
  54 #define                 AT91_SMC_DBW_16                 (1 << 12)
  55 #define                 AT91_SMC_DBW_32                 (2 << 12)
  56 #define         AT91_SMC_TDF            (0xf << 16)                     /* Data Float Time. */
  57 #define                 AT91_SMC_TDF_(x)                ((x) << 16)
  58 #define         AT91_SMC_TDFMODE        (1 << 20)                       /* TDF Optimization - Enabled */
  59 #define         AT91_SMC_PMEN           (1 << 24)                       /* Page Mode Enabled */
  60 #define         AT91_SMC_PS             (3 << 28)                       /* Page Size */
  61 #define                 AT91_SMC_PS_4                   (0 << 28)
  62 #define                 AT91_SMC_PS_8                   (1 << 28)
  63 #define                 AT91_SMC_PS_16                  (2 << 28)
  64 #define                 AT91_SMC_PS_32                  (3 << 28)
  65
  66 #if defined(AT91_SMC1)          /* The AT91SAM9263 has 2 Static Memory contollers */
  67 #define AT91_SMC1_SETUP(n)      (AT91_SMC1 + 0x00 + ((n)*0x10)) /* Setup Register for CS n */
  68 #define AT91_SMC1_PULSE(n)      (AT91_SMC1 + 0x04 + ((n)*0x10)) /* Pulse Register for CS n */
  69 #define AT91_SMC1_CYCLE(n)      (AT91_SMC1 + 0x08 + ((n)*0x10)) /* Cycle Register for CS n */
  70 #define AT91_SMC1_MODE(n)       (AT91_SMC1 + 0x0c + ((n)*0x10)) /* Mode Register for CS n */
  71 #endif
  72
  73 #endif