arch/arm/mach-mmp/mfp.h

   1 #ifndef __ASM_MACH_MFP_H
   2 #define __ASM_MACH_MFP_H
   3
   4 #include <plat/mfp.h>
   5
   6 /*
   7  * NOTE: the MFPR register bit definitions on PXA168 processor lines are a
   8  * bit different from those on PXA3xx.  Bit [7:10] are now reserved, which
   9  * were SLEEP_OE_N, SLEEP_DATA, SLEEP_SEL and the LSB of DRIVE bits.
  10  *
  11  * To cope with this difference and re-use the pxa3xx mfp code as much as
  12  * possible, we make the following compromise:
  13  *
  14  * 1. SLEEP_OE_N will always be programmed to '1' (by MFP_LPM_FLOAT)
  15  * 2. DRIVE strength definitions redefined to include the reserved bit
  16  *    - the reserved bit differs between pxa168 and pxa910, and the
  17  *      MFP_DRIVE_* macros are individually defined in mfp-pxa{168,910}.h
  18  * 3. Override MFP_CFG() and MFP_CFG_DRV()
  19  * 4. Drop the use of MFP_CFG_LPM() and MFP_CFG_X()
  20  */
  21
  22 #undef MFP_CFG
  23 #undef MFP_CFG_DRV
  24 #undef MFP_CFG_LPM
  25 #undef MFP_CFG_X
  26 #undef MFP_CFG_DEFAULT
  27
  28 #define MFP_CFG(pin, af)                \
  29         (MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_MEDIUM)
  30
  31 #define MFP_CFG_DRV(pin, af, drv)       \
  32         (MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_##drv)
  33
  34 #endif /* __ASM_MACH_MFP_H */