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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/mmc/host/sdhci-esdhc.h
2 * Freescale eSDHC controller driver generics for OF and pltfm.
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>
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.
14 #ifndef _DRIVERS_MMC_SDHCI_ESDHC_H
15 #define _DRIVERS_MMC_SDHCI_ESDHC_H
18 * Ops and quirks for the Freescale eSDHC controller.
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 SDHCI_QUIRK_NO_HISPD_BIT)
28 #define ESDHC_HOST_CONTROL_LE 0x20
31 * eSDHC register definition
34 /* Protocol Control Register */
35 #define ESDHC_PROCTL 0x28
36 #define ESDHC_CTRL_4BITBUS (0x1 << 1)
37 #define ESDHC_CTRL_8BITBUS (0x2 << 1)
38 #define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1)
39 #define ESDHC_HOST_CONTROL_RES 0x01
41 /* System Control Register */
42 #define ESDHC_SYSTEM_CONTROL 0x2c
43 #define ESDHC_CLOCK_MASK 0x0000fff0
44 #define ESDHC_PREDIV_SHIFT 8
45 #define ESDHC_DIVIDER_SHIFT 4
46 #define ESDHC_CLOCK_PEREN 0x00000004
47 #define ESDHC_CLOCK_HCKEN 0x00000002
48 #define ESDHC_CLOCK_IPGEN 0x00000001
50 /* Control Register for DMA transfer */
51 #define ESDHC_DMA_SYSCTL 0x40c
52 #define ESDHC_DMA_SNOOP 0x00000040
54 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */