67 строки
1.9 KiB
C
67 строки
1.9 KiB
C
/*
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* Freescale eSDHC controller driver generics for OF and pltfm.
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*
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* Copyright (c) 2007 Freescale Semiconductor, Inc.
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* Copyright (c) 2009 MontaVista Software, Inc.
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* Copyright (c) 2010 Pengutronix e.K.
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* Author: Wolfram Sang <w.sang@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*/
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#ifndef _DRIVERS_MMC_SDHCI_ESDHC_H
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#define _DRIVERS_MMC_SDHCI_ESDHC_H
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/*
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* Ops and quirks for the Freescale eSDHC controller.
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*/
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#define ESDHC_DEFAULT_QUIRKS (SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \
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SDHCI_QUIRK_NO_BUSY_IRQ | \
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SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
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SDHCI_QUIRK_PIO_NEEDS_DELAY | \
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SDHCI_QUIRK_NO_HISPD_BIT)
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/* pltfm-specific */
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#define ESDHC_HOST_CONTROL_LE 0x20
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/*
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* eSDHC register definition
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*/
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/* Present State Register */
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#define ESDHC_PRSSTAT 0x24
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#define ESDHC_CLOCK_STABLE 0x00000008
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/* Protocol Control Register */
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#define ESDHC_PROCTL 0x28
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#define ESDHC_VOLT_SEL 0x00000400
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#define ESDHC_CTRL_4BITBUS (0x1 << 1)
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#define ESDHC_CTRL_8BITBUS (0x2 << 1)
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#define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1)
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#define ESDHC_HOST_CONTROL_RES 0x01
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/* System Control Register */
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#define ESDHC_SYSTEM_CONTROL 0x2c
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#define ESDHC_CLOCK_MASK 0x0000fff0
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#define ESDHC_PREDIV_SHIFT 8
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#define ESDHC_DIVIDER_SHIFT 4
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#define ESDHC_CLOCK_SDCLKEN 0x00000008
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#define ESDHC_CLOCK_PEREN 0x00000004
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#define ESDHC_CLOCK_HCKEN 0x00000002
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#define ESDHC_CLOCK_IPGEN 0x00000001
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/* Tuning Block Control Register */
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#define ESDHC_TBCTL 0x120
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#define ESDHC_TB_EN 0x00000004
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/* Control Register for DMA transfer */
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#define ESDHC_DMA_SYSCTL 0x40c
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#define ESDHC_PERIPHERAL_CLK_SEL 0x00080000
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#define ESDHC_FLUSH_ASYNC_FIFO 0x00040000
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#define ESDHC_DMA_SNOOP 0x00000040
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#endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
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