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platform_data
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pxa_sdhci.h

pxa_sdhci.h 1.8 KB
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  1. /*
    2. 

  2.  * include/linux/platform_data/pxa_sdhci.h
    3. 

  3.  *
    4. 

  4.  * Copyright 2010 Marvell
    5. 

  5.  *	Zhangfei Gao <zhangfei.gao@marvell.com>
    6. 

  6.  *
    7. 

  7.  * PXA Platform - SDHCI platform data definitions
    8. 

  8.  *
    9. 

  9.  * This program is free software; you can redistribute it and/or modify
    10. 

  10.  * it under the terms of the GNU General Public License version 2 as
    11. 

  11.  * published by the Free Software Foundation.
    12. 

  12.  */
    13. 

  13. 

  14. #ifndef _PXA_SDHCI_H_
    15. 

  15. #define _PXA_SDHCI_H_
    16. 

  16. 

  17. /* pxa specific flag */
    18. 

  18. /* Require clock free running */
    19. 

  19. #define PXA_FLAG_ENABLE_CLOCK_GATING (1<<0)
    20. 

  20. /* card always wired to host, like on-chip emmc */
    21. 

  21. #define PXA_FLAG_CARD_PERMANENT	(1<<1)
    22. 

  22. /* Board design supports 8-bit data on SD/SDIO BUS */
    23. 

  23. #define PXA_FLAG_SD_8_BIT_CAPABLE_SLOT (1<<2)
    24. 

  24. 

  25. /*
    26. 

  26.  * struct pxa_sdhci_platdata() - Platform device data for PXA SDHCI
    27. 

  27.  * @flags: flags for platform requirement
    28. 

  28.  * @clk_delay_cycles:
    29. 

  29.  *	mmp2: each step is roughly 100ps, 5bits width
    30. 

  30.  *	pxa910: each step is 1ns, 4bits width
    31. 

  31.  * @clk_delay_sel: select clk_delay, used on pxa910
    32. 

  32.  *	0: choose feedback clk
    33. 

  33.  *	1: choose feedback clk + delay value
    34. 

  34.  *	2: choose internal clk
    35. 

  35.  * @clk_delay_enable: enable clk_delay or not, used on pxa910
    36. 

  36.  * @ext_cd_gpio: gpio pin used for external CD line
    37. 

  37.  * @ext_cd_gpio_invert: invert values for external CD gpio line
    38. 

  38.  * @max_speed: the maximum speed supported
    39. 

  39.  * @host_caps: Standard MMC host capabilities bit field.
    40. 

  40.  * @quirks: quirks of platfrom
    41. 

  41.  * @quirks2: quirks2 of platfrom
    42. 

  42.  * @pm_caps: pm_caps of platfrom
    43. 

  43.  */
    44. 

  44. struct sdhci_pxa_platdata {
    45. 

  45. 	unsigned int	flags;
    46. 

  46. 	unsigned int	clk_delay_cycles;
    47. 

  47. 	unsigned int	clk_delay_sel;
    48. 

  48. 	bool		clk_delay_enable;
    49. 

  49. 	unsigned int	ext_cd_gpio;
    50. 

  50. 	bool		ext_cd_gpio_invert;
    51. 

  51. 	unsigned int	max_speed;
    52. 

  52. 	u32		host_caps;
    53. 

  53. 	u32		host_caps2;
    54. 

  54. 	unsigned int	quirks;
    55. 

  55. 	unsigned int	quirks2;
    56. 

  56. 	unsigned int	pm_caps;
    57. 

  57. };
    58. 

  58. #endif /* _PXA_SDHCI_H_ */
    59.