pxa_sdhci.h

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/*
 * include/linux/platform_data/pxa_sdhci.h
 *
 * Copyright 2010 Marvell
 *  Zhangfei Gao <[email protected]>
 *
 * PXA Platform - SDHCI platform data definitions
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef _PXA_SDHCI_H_
#define _PXA_SDHCI_H_

/* pxa specific flag */
/* Require clock free running */
#define PXA_FLAG_ENABLE_CLOCK_GATING (1<<0)
/* card always wired to host, like on-chip emmc */
#define PXA_FLAG_CARD_PERMANENT (1<<1)
/* Board design supports 8-bit data on SD/SDIO BUS */
#define PXA_FLAG_SD_8_BIT_CAPABLE_SLOT (1<<2)

/*
 * struct pxa_sdhci_platdata() - Platform device data for PXA SDHCI
 * @flags: flags for platform requirement
 * @clk_delay_cycles:
 *  mmp2: each step is roughly 100ps, 5bits width
 *  pxa910: each step is 1ns, 4bits width
 * @clk_delay_sel: select clk_delay, used on pxa910
 *  0: choose feedback clk
 *  1: choose feedback clk + delay value
 *  2: choose internal clk
 * @clk_delay_enable: enable clk_delay or not, used on pxa910
 * @ext_cd_gpio: gpio pin used for external CD line
 * @ext_cd_gpio_invert: invert values for external CD gpio line
 * @max_speed: the maximum speed supported
 * @host_caps: Standard MMC host capabilities bit field.
 * @quirks: quirks of platfrom
 * @pm_caps: pm_caps of platfrom
 */
struct sdhci_pxa_platdata {
    unsigned int    flags;
    unsigned int    clk_delay_cycles;
    unsigned int    clk_delay_sel;
    bool        clk_delay_enable;
    unsigned int    ext_cd_gpio;
    bool        ext_cd_gpio_invert;
    unsigned int    max_speed;
    unsigned int    host_caps;
    unsigned int    host_caps2;
    unsigned int    quirks;
    unsigned int    pm_caps;
};

struct sdhci_pxa {
    u8  clk_enable;
    u8  power_mode;
};
#endif /* _PXA_SDHCI_H_ */