mfp.h 1.1 KB

1234567891011121314151617181920212223242526272829303132333435
  1. #ifndef __ASM_MACH_MFP_H
  2. #define __ASM_MACH_MFP_H
  3. #include <plat/mfp.h>
  4. /*
  5. * NOTE: the MFPR register bit definitions on PXA168 processor lines are a
  6. * bit different from those on PXA3xx. Bit [7:10] are now reserved, which
  7. * were SLEEP_OE_N, SLEEP_DATA, SLEEP_SEL and the LSB of DRIVE bits.
  8. *
  9. * To cope with this difference and re-use the pxa3xx mfp code as much as
  10. * possible, we make the following compromise:
  11. *
  12. * 1. SLEEP_OE_N will always be programmed to '1' (by MFP_LPM_FLOAT)
  13. * 2. DRIVE strength definitions redefined to include the reserved bit
  14. * - the reserved bit differs between pxa168 and pxa910, and the
  15. * MFP_DRIVE_* macros are individually defined in mfp-pxa{168,910}.h
  16. * 3. Override MFP_CFG() and MFP_CFG_DRV()
  17. * 4. Drop the use of MFP_CFG_LPM() and MFP_CFG_X()
  18. */
  19. #undef MFP_CFG
  20. #undef MFP_CFG_DRV
  21. #undef MFP_CFG_LPM
  22. #undef MFP_CFG_X
  23. #undef MFP_CFG_DEFAULT
  24. #define MFP_CFG(pin, af) \
  25. (MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_MEDIUM)
  26. #define MFP_CFG_DRV(pin, af, drv) \
  27. (MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_##drv)
  28. #endif /* __ASM_MACH_MFP_H */