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/*
* Copyright (C) 2016 Marvell, All Rights Reserved.
*
* Author: Hu Ziji <huziji@marvell.com>
* Date: 2016-8-24
*
* 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 version 2.
*/
#ifndef SDHCI_XENON_H_
#define SDHCI_XENON_H_
/* Register Offset of Xenon SDHC self-defined register */
#define XENON_SYS_CFG_INFO 0x0104
#define XENON_SLOT_TYPE_SDIO_SHIFT 24
#define XENON_NR_SUPPORTED_SLOT_MASK 0x7
#define XENON_SYS_OP_CTRL 0x0108
#define XENON_AUTO_CLKGATE_DISABLE_MASK BIT(20)
#define XENON_SDCLK_IDLEOFF_ENABLE_SHIFT 8
#define XENON_SLOT_ENABLE_SHIFT 0
#define XENON_SYS_EXT_OP_CTRL 0x010C
#define XENON_MASK_CMD_CONFLICT_ERR BIT(8)
#define XENON_SLOT_RETUNING_REQ_CTRL 0x0144
/* retuning compatible */
#define XENON_RETUNING_COMPATIBLE 0x1
/* Tuning Parameter */
#define XENON_TMR_RETUN_NO_PRESENT 0xF
#define XENON_DEF_TUNING_COUNT 0x9
#define XENON_DEFAULT_SDCLK_FREQ 400000
/* Xenon specific Mode Select value */
#define XENON_CTRL_HS200 0x5
#define XENON_CTRL_HS400 0x6
struct xenon_priv {
unsigned char tuning_count;
/* idx of SDHC */
u8 sdhc_id;
/*
* eMMC/SD/SDIO require different register settings.
* Xenon driver has to recognize card type
* before mmc_host->card is not available.
* This field records the card type during init.
* It is updated in xenon_init_card().
*
* It is only valid during initialization after it is updated.
* Do not access this variable in normal transfers after
* initialization completes.
*/
unsigned int init_card_type;
};
#endif
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