target/linux/etrax-2.6/image/e100boot/src/cbl/src/sv_addr_ag.h

   1 /*!**************************************************************************
   2 *!
   3 *! MACROS:
   4 *!   IO_MASK(reg,field)
   5 *!   IO_STATE(reg,field,state)
   6 *!   IO_EXTRACT(reg,field,val)
   7 *!   IO_STATE_VALUE(reg,field,state)
   8 *!   IO_BITNR(reg,field)
   9 *!   IO_WIDTH(reg,field)
  10 *!   IO_FIELD(reg,field,val)
  11 *!   IO_RD(reg)
  12 *!   All moderegister addresses and fields of these.
  13 *!
  14 *!**************************************************************************/
  15
  16 #ifndef __sv_addr_ag_h__
  17 #define __sv_addr_ag_h__
  18
  19
  20 #define __test_sv_addr__ 0
  21
  22 /*------------------------------------------------------------
  23 !* General macros to manipulate moderegisters.
  24 !*-----------------------------------------------------------*/
  25
  26 /* IO_MASK returns a mask for a specified bitfield in a register.
  27    Note that this macro doesn't work when field width is 32 bits. */
  28 #define IO_MASK(reg, field) IO_MASK_ (reg##_, field##_)
  29 #define IO_MASK_(reg_, field_) \
  30     ( ( ( 1 << reg_##_##field_##_WIDTH ) - 1 ) << reg_##_##field_##_BITNR )
  31
  32 /* IO_STATE returns a constant corresponding to a one of the symbolic
  33    states that the bitfield can have. (Shifted to correct position)  */
  34 #define IO_STATE(reg, field, state) IO_STATE_ (reg##_, field##_, _##state)
  35 #define IO_STATE_(reg_, field_, _state) \
  36     ( reg_##_##field_##_state << reg_##_##field_##_BITNR )
  37
  38 /* IO_EXTRACT returns the masked and shifted value corresponding to the
  39    bitfield can have. */
  40 #define IO_EXTRACT(reg, field, val) IO_EXTRACT_ (reg##_, field##_, val)
  41 #define IO_EXTRACT_(reg_, field_, val) ( (( ( ( 1 << reg_##_##field_##_WIDTH ) \
  42      - 1 ) << reg_##_##field_##_BITNR ) & (val)) >> reg_##_##field_##_BITNR )
  43
  44 /* IO_STATE_VALUE returns a constant corresponding to a one of the symbolic
  45    states that the bitfield can have. (Not shifted)  */
  46 #define IO_STATE_VALUE(reg, field, state) \
  47     IO_STATE_VALUE_ (reg##_, field##_, _##state)
  48 #define IO_STATE_VALUE_(reg_, field_, _state) ( reg_##_##field_##_state )
  49
  50 /* IO_FIELD shifts the val parameter to be aligned with the bitfield
  51    specified. */
  52 #define IO_FIELD(reg, field, val) IO_FIELD_ (reg##_, field##_, val)
  53 #define IO_FIELD_(reg_, field_, val) ((val) << reg_##_##field_##_BITNR)
  54
  55 /* IO_BITNR returns the starting bitnumber of a bitfield. Bit 0 is
  56    LSB and the returned bitnumber is LSB of the field. */
  57 #define IO_BITNR(reg, field) IO_BITNR_ (reg##_, field##_)
  58 #define IO_BITNR_(reg_, field_) (reg_##_##field_##_BITNR)
  59
  60 /* IO_WIDTH returns the width, in bits, of a bitfield. */
  61 #define IO_WIDTH(reg, field) IO_WIDTH_ (reg##_, field##_)
  62 #define IO_WIDTH_(reg_, field_) (reg_##_##field_##_WIDTH)
  63
  64 /*--- Obsolete. Kept for backw compatibility. ---*/
  65 /* Reads (or writes) a byte/uword/udword from the specified mode
  66    register. */
  67 #define IO_RD(reg) (*(volatile udword*)(reg))
  68 #define IO_RD_B(reg) (*(volatile byte*)(reg))
  69 #define IO_RD_W(reg) (*(volatile uword*)(reg))
  70 #define IO_RD_D(reg) (*(volatile udword*)(reg))
  71
  72 /*------------------------------------------------------------
  73 !* Start addresses of the different memory areas.
  74 !*-----------------------------------------------------------*/
  75
  76 #define MEM_CSE0_START (0x00000000)
  77 #define MEM_CSE1_START (0x04000000)
  78 #define MEM_CSR0_START (0x08000000)
  79 #define MEM_CSR1_START (0x0c000000)
  80 #define MEM_CSP0_START (0x10000000)
  81 #define MEM_CSP1_START (0x14000000)
  82 #define MEM_CSP2_START (0x18000000)
  83 #define MEM_CSP3_START (0x1c000000)
  84 #define MEM_CSP4_START (0x20000000)
  85 #define MEM_CSP5_START (0x24000000)
  86 #define MEM_CSP6_START (0x28000000)
  87 #define MEM_CSP7_START (0x2c000000)
  88 #define MEM_DRAM_START (0x40000000)
  89
  90 #define MEM_NON_CACHEABLE (0x80000000)
  91
  92 /*------------------------------------------------------------
  93 !* Type casts used in mode register macros, making pointer
  94 !* dereferencing possible. Empty in assembler.
  95 !*-----------------------------------------------------------*/
  96
  97 #ifndef __ASSEMBLER__
  98 # define  IO_TYPECAST_UDWORD  (volatile udword*)
  99 # define  IO_TYPECAST_RO_UDWORD  (const volatile udword*)
 100 # define  IO_TYPECAST_UWORD  (volatile uword*)
 101 # define  IO_TYPECAST_RO_UWORD  (const volatile uword*)
 102 # define  IO_TYPECAST_BYTE  (volatile byte*)
 103 # define  IO_TYPECAST_RO_BYTE  (const volatile byte*)
 104 #else
 105 # define  IO_TYPECAST_UDWORD
 106 # define  IO_TYPECAST_RO_UDWORD
 107 # define  IO_TYPECAST_UWORD
 108 # define  IO_TYPECAST_RO_UWORD
 109 # define  IO_TYPECAST_BYTE
 110 # define  IO_TYPECAST_RO_BYTE
 111 #endif
 112
 113 /*------------------------------------------------------------*/
 114
 115 #include "sv_addr.agh"
 116
 117 #if __test_sv_addr__
 118 /* IO_MASK( R_BUS_CONFIG , CE ) */
 119 IO_MASK( R_WAITSTATES , SRAM_WS )
 120 IO_MASK( R_TEST , W32 )
 121
 122 IO_STATE( R_BUS_CONFIG, CE, DISABLE )
 123 IO_STATE( R_BUS_CONFIG, CE, ENABLE )
 124
 125 IO_STATE( R_DRAM_TIMING, REF, IVAL2 )
 126
 127 IO_MASK( R_DRAM_TIMING, REF )
 128
 129 IO_MASK( R_EXT_DMA_0_STAT, TFR_COUNT ) >> IO_BITNR( R_EXT_DMA_0_STAT, TFR_COUNT )
 130
 131 IO_RD(R_EXT_DMA_0_STAT) & IO_MASK( R_EXT_DMA_0_STAT, S )
 132    == IO_STATE( R_EXT_DMA_0_STAT, S, STARTED )
 133 #endif
 134
 135
 136 #endif  /* ifndef __sv_addr_ag_h__ */
 137