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linux-vybrid_pu...
/
arch
/
arm
/
plat-pxa
/
include
/
plat
/
sdhci.h

sdhci.h 1.8 KB
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  1. /* linux/arch/arm/plat-pxa/include/plat/sdhci.h
    2. 

  2.  *
    3. 

  3.  * Copyright 2010 Marvell
    4. 

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

  5.  *
    6. 

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

  7.  *
    8. 

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

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

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

  11.  */
    12. 

  12. 

  13. #ifndef __PLAT_PXA_SDHCI_H
    14. 

  14. #define __PLAT_PXA_SDHCI_H
    15. 

  15. 

  16. /* pxa specific flag */
    17. 

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

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

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

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

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

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

  23. 

  24. /*
    25. 

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

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

  27.  * @clk_delay_cycles:
    28. 

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

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

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

  31.  *	0: choose feedback clk
    32. 

  32.  *	1: choose feedback clk + delay value
    33. 

  33.  *	2: choose internal clk
    34. 

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

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

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

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

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

  39.  * @quirks: quirks of platfrom
    40. 

  40.  * @pm_caps: pm_caps of platfrom
    41. 

  41.  */
    42. 

  42. struct sdhci_pxa_platdata {
    43. 

  43. 	unsigned int	flags;
    44. 

  44. 	unsigned int	clk_delay_cycles;
    45. 

  45. 	unsigned int	clk_delay_sel;
    46. 

  46. 	bool		clk_delay_enable;
    47. 

  47. 	unsigned int	ext_cd_gpio;
    48. 

  48. 	bool		ext_cd_gpio_invert;
    49. 

  49. 	unsigned int	max_speed;
    50. 

  50. 	unsigned int	host_caps;
    51. 

  51. 	unsigned int	quirks;
    52. 

  52. 	unsigned int	pm_caps;
    53. 

  53. };
    54. 

  54. 

  55. struct sdhci_pxa {
    56. 

  56. 	u8	clk_enable;
    57. 

  57. 	u8	power_mode;
    58. 

  58. };
    59. 

  59. 

  60. #endif /* __PLAT_PXA_SDHCI_H */
    61.