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_NONSTANDARD_CLOCK | \ 24 SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \ 25 SDHCI_QUIRK_PIO_NEEDS_DELAY | \ 26 SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET) 27 28 #define ESDHC_SYSTEM_CONTROL 0x2c 29 #define ESDHC_CLOCK_MASK 0x0000fff0 30 #define ESDHC_PREDIV_SHIFT 8 31 #define ESDHC_DIVIDER_SHIFT 4 32 #define ESDHC_CLOCK_PEREN 0x00000004 33 #define ESDHC_CLOCK_HCKEN 0x00000002 34 #define ESDHC_CLOCK_IPGEN 0x00000001 35 36 /* pltfm-specific */ 37 #define ESDHC_HOST_CONTROL_LE 0x20 38 39 /* 40 * P2020 interpretation of the SDHCI_HOST_CONTROL register 41 */ 42 #define ESDHC_CTRL_4BITBUS (0x1 << 1) 43 #define ESDHC_CTRL_8BITBUS (0x2 << 1) 44 #define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1) 45 46 /* OF-specific */ 47 #define ESDHC_DMA_SYSCTL 0x40c 48 #define ESDHC_DMA_SNOOP 0x00000040 49 50 #define ESDHC_HOST_CONTROL_RES 0x05 51 52 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */ 53