linux-imx

/*

 * OpenFirmware helpers for memory drivers

 *

 * Copyright (C) 2012 Texas Instruments, Inc.

 *

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

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 */

​

#ifndef __LINUX_MEMORY_OF_REG_H

#define __LINUX_MEMORY_OF_REG_H

​

#if defined(CONFIG_OF) && defined(CONFIG_DDR)

extern const struct lpddr2_min_tck *of_get_min_tck(struct device_node *np,

        struct device *dev);

extern const struct lpddr2_timings

    *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,

    u32 device_type, u32 *nr_frequencies);

#else

static inline const struct lpddr2_min_tck

    *of_get_min_tck(struct device_node *np, struct device *dev)

{

    return NULL;

}

​

static inline const struct lpddr2_timings

    *of_get_ddr_timings(struct device_node *np_ddr, struct device *dev,

    u32 device_type, u32 *nr_frequencies)

{

    return NULL;

}

#endif /* CONFIG_OF && CONFIG_DDR */

​

#endif /* __LINUX_MEMORY_OF_REG_ */