mirror of https://gitee.com/openkylin/linux.git
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
|
|
* Freescale eSDHC controller driver generics for OF and pltfm.
|
|
*
|
|
* Copyright (c) 2007 Freescale Semiconductor, Inc.
|
|
* Copyright (c) 2009 MontaVista Software, Inc.
|
|
* Copyright (c) 2010 Pengutronix e.K.
|
|
* Author: Wolfram Sang <w.sang@pengutronix.de>
|
|
*
|
|
* 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; either version 2 of the License.
|
|
*/
|
|
|
|
#ifndef _DRIVERS_MMC_SDHCI_ESDHC_H
|
|
#define _DRIVERS_MMC_SDHCI_ESDHC_H
|
|
|
|
/*
|
|
* Ops and quirks for the Freescale eSDHC controller.
|
|
*/
|
|
|
|
#define ESDHC_DEFAULT_QUIRKS (SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \
|
|
SDHCI_QUIRK_NO_BUSY_IRQ | \
|
|
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
|
|
SDHCI_QUIRK_PIO_NEEDS_DELAY | \
|
|
SDHCI_QUIRK_NO_HISPD_BIT)
|
|
|
|
#define ESDHC_PROCTL 0x28
|
|
|
|
#define ESDHC_SYSTEM_CONTROL 0x2c
|
|
#define ESDHC_CLOCK_MASK 0x0000fff0
|
|
#define ESDHC_PREDIV_SHIFT 8
|
|
#define ESDHC_DIVIDER_SHIFT 4
|
|
#define ESDHC_CLOCK_PEREN 0x00000004
|
|
#define ESDHC_CLOCK_HCKEN 0x00000002
|
|
#define ESDHC_CLOCK_IPGEN 0x00000001
|
|
|
|
/* pltfm-specific */
|
|
#define ESDHC_HOST_CONTROL_LE 0x20
|
|
|
|
/*
|
|
* P2020 interpretation of the SDHCI_HOST_CONTROL register
|
|
*/
|
|
#define ESDHC_CTRL_4BITBUS (0x1 << 1)
|
|
#define ESDHC_CTRL_8BITBUS (0x2 << 1)
|
|
#define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1)
|
|
|
|
/* OF-specific */
|
|
#define ESDHC_DMA_SYSCTL 0x40c
|
|
#define ESDHC_DMA_SNOOP 0x00000040
|
|
|
|
#define ESDHC_HOST_CONTROL_RES 0x01
|
|
|
|
#endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
|