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