drivers/mmc/host/sdhci-esdhc.h

   1 /*
   2  * Freescale eSDHC controller driver generics for OF and pltfm.
   3  *
   4  * Copyright (c) 2007 Freescale Semiconductor, Inc.
   5  * Copyright (c) 2009 MontaVista Software, Inc.
   6  * Copyright (c) 2010 Pengutronix e.K.
   7  *   Author: Wolfram Sang <w.sang@pengutronix.de>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License.
  12  */
  13
  14 #ifndef _DRIVERS_MMC_SDHCI_ESDHC_H
  15 #define _DRIVERS_MMC_SDHCI_ESDHC_H
  16
  17 /*
  18  * Ops and quirks for the Freescale eSDHC controller.
  19  */
  20
  21 #define ESDHC_DEFAULT_QUIRKS    (SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \
  22                                 SDHCI_QUIRK_NO_BUSY_IRQ | \
  23                                 SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
  24                                 SDHCI_QUIRK_PIO_NEEDS_DELAY)
  25
  26 #define ESDHC_SYSTEM_CONTROL    0x2c
  27 #define ESDHC_CLOCK_MASK        0x0000fff0
  28 #define ESDHC_PREDIV_SHIFT      8
  29 #define ESDHC_DIVIDER_SHIFT     4
  30 #define ESDHC_CLOCK_PEREN       0x00000004
  31 #define ESDHC_CLOCK_HCKEN       0x00000002
  32 #define ESDHC_CLOCK_IPGEN       0x00000001
  33
  34 /* pltfm-specific */
  35 #define ESDHC_HOST_CONTROL_LE   0x20
  36
  37 /*
  38  * P2020 interpretation of the SDHCI_HOST_CONTROL register
  39  */
  40 #define ESDHC_CTRL_4BITBUS          (0x1 << 1)
  41 #define ESDHC_CTRL_8BITBUS          (0x2 << 1)
  42 #define ESDHC_CTRL_BUSWIDTH_MASK    (0x3 << 1)
  43
  44 /* OF-specific */
  45 #define ESDHC_DMA_SYSCTL        0x40c
  46 #define ESDHC_DMA_SNOOP         0x00000040
  47
  48 #define ESDHC_HOST_CONTROL_RES  0x05
  49
  50 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */