include/linux/platform_data/pxa_sdhci.h

   1 /*
   2  * include/linux/platform_data/pxa_sdhci.h
   3  *
   4  * Copyright 2010 Marvell
   5  *      Zhangfei Gao <zhangfei.gao@marvell.com>
   6  *
   7  * PXA Platform - SDHCI platform data definitions
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #ifndef _PXA_SDHCI_H_
  15 #define _PXA_SDHCI_H_
  16
  17 /* pxa specific flag */
  18 /* Require clock free running */
  19 #define PXA_FLAG_ENABLE_CLOCK_GATING (1<<0)
  20 /* card always wired to host, like on-chip emmc */
  21 #define PXA_FLAG_CARD_PERMANENT (1<<1)
  22 /* Board design supports 8-bit data on SD/SDIO BUS */
  23 #define PXA_FLAG_SD_8_BIT_CAPABLE_SLOT (1<<2)
  24
  25 /*
  26  * struct pxa_sdhci_platdata() - Platform device data for PXA SDHCI
  27  * @flags: flags for platform requirement
  28  * @clk_delay_cycles:
  29  *      mmp2: each step is roughly 100ps, 5bits width
  30  *      pxa910: each step is 1ns, 4bits width
  31  * @clk_delay_sel: select clk_delay, used on pxa910
  32  *      0: choose feedback clk
  33  *      1: choose feedback clk + delay value
  34  *      2: choose internal clk
  35  * @clk_delay_enable: enable clk_delay or not, used on pxa910
  36  * @ext_cd_gpio: gpio pin used for external CD line
  37  * @ext_cd_gpio_invert: invert values for external CD gpio line
  38  * @max_speed: the maximum speed supported
  39  * @host_caps: Standard MMC host capabilities bit field.
  40  * @quirks: quirks of platfrom
  41  * @pm_caps: pm_caps of platfrom
  42  */
  43 struct sdhci_pxa_platdata {
  44         unsigned int    flags;
  45         unsigned int    clk_delay_cycles;
  46         unsigned int    clk_delay_sel;
  47         bool            clk_delay_enable;
  48         unsigned int    ext_cd_gpio;
  49         bool            ext_cd_gpio_invert;
  50         unsigned int    max_speed;
  51         unsigned int    host_caps;
  52         unsigned int    quirks;
  53         unsigned int    pm_caps;
  54 };
  55
  56 struct sdhci_pxa {
  57         u8      clk_enable;
  58         u8      power_mode;
  59 };
  60 #endif /* _PXA_SDHCI_H_ */