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	0x01
49
50#endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
51