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linux-sg2042/drivers/mmc/host/sdhci-esdhc.h

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mmc: sdhci-of-esdhc: factor out common stuff Put everything which can be shared between the OF and platform version of this driver into a local .h file. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> [cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-15 18:21:03 +08:00
/*
* 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 | \
mmc: sdhci-esdhc: add default quirk SDHCI_QUIRK_NO_HISPD_BIT eSDHC supports high speed mode, but has no enabling bit for it. Add this quirk to avoid writing to eSDHC_PROCTL[DTW] by mistake. Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-07-10 11:42:37 +08:00
SDHCI_QUIRK_PIO_NEEDS_DELAY | \
SDHCI_QUIRK_NO_HISPD_BIT)
mmc: sdhci-of-esdhc: factor out common stuff Put everything which can be shared between the OF and platform version of this driver into a local .h file. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> [cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-15 18:21:03 +08:00
mmc: sdhci-of-esdhc: support both BE and LE host controller To support little endian eSDHC controller, we redefine both BE and LE IO accessors. In the new accessors, use ioread*/iowrite* instead of in_be32/out_be32 and will select accessors according to endian mode in probe function. Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 18:36:36 +08:00
#define ESDHC_PROCTL 0x28
mmc: sdhci-of-esdhc: factor out common stuff Put everything which can be shared between the OF and platform version of this driver into a local .h file. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> [cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-15 18:21:03 +08:00
#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
mmc: esdhc: Add support for 8-bit bus width and non-removable card This patch adds support of connecting an MMC media using an 8-bit bus width connection to Freescale's P2020 H/W SDHC controller. During the probe function, the generic function mmc_of_parse is called to detect whether the controller is configured with 8-bit bus width. Also, the generic function detects if the non-removable property is set in the device tree. The function esdhc_pltfm_bus_width was added because the bus width configuration is platform specific. Signed-off-by: Oded Gabbay <ogabbay@advaoptical.com> Reviewed-by: Anton Vorontsov <anton@enomsg.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-06-28 00:00:05 +08:00
/*
* 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)
mmc: sdhci-of-esdhc: factor out common stuff Put everything which can be shared between the OF and platform version of this driver into a local .h file. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> [cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-15 18:21:03 +08:00
/* OF-specific */
#define ESDHC_DMA_SYSCTL 0x40c
#define ESDHC_DMA_SNOOP 0x00000040
mmc: sdhci-esdhc: Make 8BIT bus work Support for 8BIT bus with was added some time ago to sdhci-esdhc but then missed to remove the 8BIT from the reserved bit mask which made 8BIT non functional. Fixes: 66b50a00992d ("mmc: esdhc: Add support for 8-bit bus width and..") Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-07-22 22:44:26 +08:00
#define ESDHC_HOST_CONTROL_RES 0x01
mmc: sdhci-of-esdhc: factor out common stuff Put everything which can be shared between the OF and platform version of this driver into a local .h file. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> [cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-15 18:21:03 +08:00
#endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */