arch/avr32/mach-at32ap/include/mach/hmatrix.h

   1 /*
   2  * High-Speed Bus Matrix configuration registers
   3  *
   4  * Copyright (C) 2008 Atmel Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef __HMATRIX_H
  11 #define __HMATRIX_H
  12
  13 extern struct clk at32_hmatrix_clk;
  14
  15 void hmatrix_write_reg(unsigned long offset, u32 value);
  16 u32 hmatrix_read_reg(unsigned long offset);
  17
  18 void hmatrix_sfr_set_bits(unsigned int slave_id, u32 mask);
  19 void hmatrix_sfr_clear_bits(unsigned int slave_id, u32 mask);
  20
  21 /* Master Configuration register */
  22 #define HMATRIX_MCFG(m)                 (0x0000 + 4 * (m))
  23 /* Undefined length burst limit */
  24 # define HMATRIX_MCFG_ULBT_INFINITE     0       /* Infinite length */
  25 # define HMATRIX_MCFG_ULBT_SINGLE       1       /* Single Access */
  26 # define HMATRIX_MCFG_ULBT_FOUR_BEAT    2       /* Four beat */
  27 # define HMATRIX_MCFG_ULBT_EIGHT_BEAT   3       /* Eight beat */
  28 # define HMATRIX_MCFG_ULBT_SIXTEEN_BEAT 4       /* Sixteen beat */
  29
  30 /* Slave Configuration register */
  31 #define HMATRIX_SCFG(s)                 (0x0040 + 4 * (s))
  32 # define HMATRIX_SCFG_SLOT_CYCLE(x)     ((x) <<  0)     /* Max burst cycles */
  33 # define HMATRIX_SCFG_DEFMSTR_NONE      (  0 << 16)     /* No default master */
  34 # define HMATRIX_SCFG_DEFMSTR_LAST      (  1 << 16)     /* Last def master */
  35 # define HMATRIX_SCFG_DEFMSTR_FIXED     (  2 << 16)     /* Fixed def master */
  36 # define HMATRIX_SCFG_FIXED_DEFMSTR(m)  ((m) << 18)     /* Fixed master ID */
  37 # define HMATRIX_SCFG_ARBT_ROUND_ROBIN  (  0 << 24)     /* RR arbitration */
  38 # define HMATRIX_SCFG_ARBT_FIXED_PRIO   (  1 << 24)     /* Fixed priority */
  39
  40 /* Slave Priority register A (master 0..7) */
  41 #define HMATRIX_PRAS(s)                 (0x0080 + 8 * (s))
  42 # define HMATRIX_PRAS_PRIO(m, p)        ((p) << ((m) * 4))
  43
  44 /* Slave Priority register A (master 8..15) */
  45 #define HMATRIX_PRBS(s)                 (0x0084 + 8 * (s))
  46 # define HMATRIX_PRBS_PRIO(m, p)        ((p) << (((m) - 8) * 4))
  47
  48 /* Master Remap Control Register */
  49 #define HMATRIX_MRCR                            0x0100
  50 # define HMATRIX_MRCR_REMAP(m)          (  1 << (m))    /* Remap master m */
  51
  52 /* Special Function Register. Bit definitions are chip-specific */
  53 #define HMATRIX_SFR(s)                  (0x0110 + 4 * (s))
  54
  55 #endif /* __HMATRIX_H */