emif_plat.h

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/*
 * Definitions for TI EMIF device platform data
 *
 * Copyright (C) 2012 Texas Instruments, Inc.
 *
 * Aneesh V <[email protected]>
 *
 * 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 __EMIF_PLAT_H
#define __EMIF_PLAT_H

/* Low power modes - EMIF_PWR_MGMT_CTRL */
#define EMIF_LP_MODE_DISABLE                0
#define EMIF_LP_MODE_CLOCK_STOP             1
#define EMIF_LP_MODE_SELF_REFRESH           2
#define EMIF_LP_MODE_PWR_DN             4

/* Hardware capabilities */
#define EMIF_HW_CAPS_LL_INTERFACE           0x00000001

/*
 * EMIF IP Revisions
 *  EMIF4D  - Used in OMAP4
 *  EMIF4D5 - Used in OMAP5
 */
#define EMIF_4D                     1
#define EMIF_4D5                    2

/*
 * PHY types
 *  ATTILAPHY  - Used in OMAP4
 *  INTELLIPHY - Used in OMAP5
 */
#define EMIF_PHY_TYPE_ATTILAPHY             1
#define EMIF_PHY_TYPE_INTELLIPHY            2

/* Custom config requests */
#define EMIF_CUSTOM_CONFIG_LPMODE           0x00000001
#define EMIF_CUSTOM_CONFIG_TEMP_ALERT_POLL_INTERVAL 0x00000002

#ifndef __ASSEMBLY__

struct ddr_device_info {
    u32 type;
    u32 density;
    u32 io_width;
    u32 cs1_used;
    u32 cal_resistors_per_cs;
    char    manufacturer[10];
};

struct emif_custom_configs {
    u32 mask;
    u32 lpmode;
    u32 lpmode_timeout_performance;
    u32 lpmode_timeout_power;
    u32 lpmode_freq_threshold;
    u32 temp_alert_poll_interval_ms;
};

struct emif_platform_data {
    u32 hw_caps;
    struct ddr_device_info *device_info;
    const struct lpddr2_timings *timings;
    u32 timings_arr_size;
    const struct lpddr2_min_tck *min_tck;
    struct emif_custom_configs *custom_configs;
    u32 ip_rev;
    u32 phy_type;
};
#endif /* __ASSEMBLY__ */

#endif /* __LINUX_EMIF_H */