include/mvmfp.h

   1 /*
   2  * (C) Copyright 2010
   3  * Marvell Semiconductor <www.marvell.com>
   4  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #ifndef __MVMFP_H
  10 #define __MVMFP_H
  11
  12 /*
  13  * Header file for MultiFunctionPin (MFP) Configururation framework
  14  *
  15  * Processors Supported:
  16  * 1. Marvell ARMADA100 Processors
  17  *
  18  * processor to be supported should be added here
  19  */
  20
  21 /*
  22  * MFP configuration is represented by a 32-bit unsigned integer
  23  */
  24 #ifdef CONFIG_MVMFP_V2
  25 #define MFP(_off, _pull, _drv, _slp, _edge, _sleep, _afn) ( \
  26         /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \
  27         /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \
  28         /* bit  12..11 - Driver Strength */     (((_drv) & 0x3) << 11) | \
  29         /* bits 10     - pad driver */          (((_slp) & 0x1) << 10) | \
  30         /* bit  09..07 - sleep mode */          (((_sleep) & 0xe) << 6) | \
  31         /* bits 06..04 - Edge Detection */      (((_edge) & 0x7) << 4) | \
  32         /* bits 03     - sleep mode */          (((_sleep) & 0x1) << 3) | \
  33         /* bits 02..00 - Alt-fun select */      ((_afn) & 0x7))
  34 #else
  35 #define MFP(_off, _pull, _drv, _slp, _edge, _sleep, _afn) ( \
  36         /* bits 31..16 - MFP Register Offset */ (((_off) & 0xffff) << 16) | \
  37         /* bits 15..13 - Run Mode Pull State */ (((_pull) & 0x7) << 13) | \
  38         /* bit  12     - Unused */ \
  39         /* bits 11..10 - Driver Strength */     (((_drv) & 0x3) << 10) | \
  40         /* bit  09..07 - sleep mode */          (((_sleep) & 0xe) << 6) | \
  41         /* bits 06..04 - Edge Detection */      (((_edge) & 0x7) << 4) | \
  42         /* bits 03     - sleep mode */          (((_sleep) & 0x1) << 3) | \
  43         /* bits 02..00 - Alt-fun select */      ((_afn) & 0x7))
  44 #endif
  45
  46 /*
  47  * to facilitate the definition, the following macros are provided
  48  *
  49  *                                  offset, pull,pF, drv,dF, edge,eF ,afn,aF
  50  */
  51 #define MFP_OFFSET_MASK         MFP(0xffff,    0,    0,   0,   0,   0,   0)
  52 #define MFP_REG(x)              MFP(x,         0,    0,   0,   0,   0,   0)
  53 #define MFP_REG_GET_OFFSET(x)   ((x & MFP_OFFSET_MASK) >> 16)
  54
  55 #define MFP_AF0                 MFP(0x0000,    0,    0,   0,   0,   0,   0)
  56 #define MFP_AF1                 MFP(0x0000,    0,    0,   0,   0,   0,   1)
  57 #define MFP_AF2                 MFP(0x0000,    0,    0,   0,   0,   0,   2)
  58 #define MFP_AF3                 MFP(0x0000,    0,    0,   0,   0,   0,   3)
  59 #define MFP_AF4                 MFP(0x0000,    0,    0,   0,   0,   0,   4)
  60 #define MFP_AF5                 MFP(0x0000,    0,    0,   0,   0,   0,   5)
  61 #define MFP_AF6                 MFP(0x0000,    0,    0,   0,   0,   0,   6)
  62 #define MFP_AF7                 MFP(0x0000,    0,    0,   0,   0,   0,   7)
  63 #define MFP_AF_MASK             MFP(0x0000,    0,    0,   0,   0,   0,   7)
  64
  65 #define MFP_SLEEP_CTRL2         MFP(0x0000,    0,    0,   0,   0,   1,   0)
  66 #define MFP_SLEEP_DIR           MFP(0x0000,    0,    0,   0,   0,   2,   0)
  67 #define MFP_SLEEP_DATA          MFP(0x0000,    0,    0,   0,   0,   4,   0)
  68 #define MFP_SLEEP_CTRL          MFP(0x0000,    0,    0,   0,   0,   8,   0)
  69 #define MFP_SLEEP_MASK          MFP(0x0000,    0,    0,   0,   0, 0xf,   0)
  70
  71 #define MFP_LPM_EDGE_NONE       MFP(0x0000,    0,    0,   0,   4,   0,   0)
  72 #define MFP_LPM_EDGE_RISE       MFP(0x0000,    0,    0,   0,   1,   0,   0)
  73 #define MFP_LPM_EDGE_FALL       MFP(0x0000,    0,    0,   0,   2,   0,   0)
  74 #define MFP_LPM_EDGE_BOTH       MFP(0x0000,    0,    0,   0,   3,   0,   0)
  75 #define MFP_LPM_EDGE_MASK       MFP(0x0000,    0,    0,   0,   7,   0,   0)
  76
  77 #define MFP_SLP_DI              MFP(0x0000,    0,    0,   1,   0,   0,   0)
  78
  79 #define MFP_DRIVE_VERY_SLOW     MFP(0x0000,    0,    0,   0,   0,   0,   0)
  80 #define MFP_DRIVE_SLOW          MFP(0x0000,    0,    1,   0,   0,   0,   0)
  81 #define MFP_DRIVE_MEDIUM        MFP(0x0000,    0,    2,   0,   0,   0,   0)
  82 #define MFP_DRIVE_FAST          MFP(0x0000,    0,    3,   0,   0,   0,   0)
  83 #define MFP_DRIVE_MASK          MFP(0x0000,    0,    3,   0,   0,   0,   0)
  84
  85 #define MFP_PULL_NONE           MFP(0x0000,    0,    0,   0,   0,   0,   0)
  86 #define MFP_PULL_LOW            MFP(0x0000,    5,    0,   0,   0,   0,   0)
  87 #define MFP_PULL_HIGH           MFP(0x0000,    6,    0,   0,   0,   0,   0)
  88 #define MFP_PULL_BOTH           MFP(0x0000,    7,    0,   0,   0,   0,   0)
  89 #define MFP_PULL_FLOAT          MFP(0x0000,    4,    0,   0,   0,   0,   0)
  90 #define MFP_PULL_MASK           MFP(0x0000,    7,    0,   0,   0,   0,   0)
  91
  92 #define MFP_VALUE_MASK          (MFP_PULL_MASK | MFP_DRIVE_MASK | MFP_SLP_DI \
  93                                 | MFP_LPM_EDGE_MASK | MFP_SLEEP_MASK \
  94                                 | MFP_AF_MASK)
  95 #define MFP_EOC                 0xffffffff      /* indicates end-of-conf */
  96
  97 /* Functions */
  98 void mfp_config(u32 *mfp_cfgs);
  99
 100 #endif /* __MVMFP_H */