Home Explore Help
Register Sign In
phyus
/
linux-vybrid_public
8
0
Fork 0
Files Issues 0 Pull Requests 0 Wiki
Tree: 1318a481fc
Branches Tags
linux-vybrid_pu...
/
arch
/
m68k
/
include
/
asm
/
mcfqspi.h

mcfqspi.h 2.3 KB
History Raw

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364 
  1. /*
    2. 

  2.  * Definitions for Freescale Coldfire QSPI module
    3. 

  3.  *
    4. 

  4.  * Copyright 2010 Steven King <sfking@fdwdc.com>
    5. 

  5.  *
    6. 

  6.  * This program is free software; you can redistribute it and/or modify
    7. 

  7.  * it under the terms of the GNU General Public License version 2
    8. 

  8.  * as published by the Free Software Foundation.
    9. 

  9.  *
    10. 

  10.  * This program is distributed in the hope that it will be useful,
    11. 

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12. 

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13. 

  13.  * GNU General Public License for more details.
    14. 

  14.  *
    15. 

  15.  * You should have received a copy of the GNU General Public License along
    16. 

  16.  * with this program; if not, write to the Free Software Foundation, Inc.,
    17. 

  17.  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
    18. 

  18.  *
    19. 

  19. */
    20. 

  20. 

  21. #ifndef mcfqspi_h
    22. 

  22. #define mcfqspi_h
    23. 

  23. 

  24. #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x)
    25. 

  25. #define	MCFQSPI_IOBASE		(MCF_IPSBAR + 0x340)
    26. 

  26. #elif defined(CONFIG_M5249)
    27. 

  27. #define MCFQSPI_IOBASE		(MCF_MBAR + 0x300)
    28. 

  28. #elif defined(CONFIG_M520x) || defined(CONFIG_M532x)
    29. 

  29. #define MCFQSPI_IOBASE		0xFC058000
    30. 

  30. #endif
    31. 

  31. #define MCFQSPI_IOSIZE		0x40
    32. 

  32. 

  33. /**
    34. 

  34.  * struct mcfqspi_cs_control - chip select control for the coldfire qspi driver
    35. 

  35.  * @setup: setup the control; allocate gpio's, etc. May be NULL.
    36. 

  36.  * @teardown: finish with the control; free gpio's, etc. May be NULL.
    37. 

  37.  * @select: output the signals to select the device.  Can not be NULL.
    38. 

  38.  * @deselect: output the signals to deselect the device. Can not be NULL.
    39. 

  39.  *
    40. 

  40.  * The QSPI module has 4 hardware chip selects.  We don't use them.  Instead
    41. 

  41.  * platforms are required to supply a mcfqspi_cs_control as a part of the
    42. 

  42.  * platform data for each QSPI master controller.  Only the select and
    43. 

  43.  * deselect functions are required.
    44. 

  44. */
    45. 

  45. struct mcfqspi_cs_control {
    46. 

  46. 	int 	(*setup)(struct mcfqspi_cs_control *);
    47. 

  47. 	void	(*teardown)(struct mcfqspi_cs_control *);
    48. 

  48. 	void	(*select)(struct mcfqspi_cs_control *, u8, bool);
    49. 

  49. 	void	(*deselect)(struct mcfqspi_cs_control *, u8, bool);
    50. 

  50. };
    51. 

  51. 

  52. /**
    53. 

  53.  * struct mcfqspi_platform_data - platform data for the coldfire qspi driver
    54. 

  54.  * @bus_num: board specific identifier for this qspi driver.
    55. 

  55.  * @num_chipselects: number of chip selects supported by this qspi driver.
    56. 

  56.  * @cs_control: platform dependent chip select control.
    57. 

  57. */
    58. 

  58. struct mcfqspi_platform_data {
    59. 

  59. 	s16	bus_num;
    60. 

  60. 	u16	num_chipselect;
    61. 

  61. 	struct mcfqspi_cs_control *cs_control;
    62. 

  62. };
    63. 

  63. 

  64. #endif /* mcfqspi_h */
    65.