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_32BIT_DMA_ADDR | \ 23 SDHCI_QUIRK_NO_BUSY_IRQ | \ 24 SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \ 25 SDHCI_QUIRK_PIO_NEEDS_DELAY | \ 26 SDHCI_QUIRK_NO_HISPD_BIT) 27 28 /* pltfm-specific */ 29 #define ESDHC_HOST_CONTROL_LE 0x20 30 31 /* 32 * eSDHC register definition 33 */ 34 35 /* Present State Register */ 36 #define ESDHC_PRSSTAT 0x24 37 #define ESDHC_CLOCK_STABLE 0x00000008 38 39 /* Protocol Control Register */ 40 #define ESDHC_PROCTL 0x28 41 #define ESDHC_VOLT_SEL 0x00000400 42 #define ESDHC_CTRL_4BITBUS (0x1 << 1) 43 #define ESDHC_CTRL_8BITBUS (0x2 << 1) 44 #define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1) 45 #define ESDHC_HOST_CONTROL_RES 0x01 46 47 /* System Control Register */ 48 #define ESDHC_SYSTEM_CONTROL 0x2c 49 #define ESDHC_CLOCK_MASK 0x0000fff0 50 #define ESDHC_PREDIV_SHIFT 8 51 #define ESDHC_DIVIDER_SHIFT 4 52 #define ESDHC_CLOCK_SDCLKEN 0x00000008 53 #define ESDHC_CLOCK_PEREN 0x00000004 54 #define ESDHC_CLOCK_HCKEN 0x00000002 55 #define ESDHC_CLOCK_IPGEN 0x00000001 56 57 /* Tuning Block Control Register */ 58 #define ESDHC_TBCTL 0x120 59 #define ESDHC_TB_EN 0x00000004 60 61 /* Control Register for DMA transfer */ 62 #define ESDHC_DMA_SYSCTL 0x40c 63 #define ESDHC_PERIPHERAL_CLK_SEL 0x00080000 64 #define ESDHC_FLUSH_ASYNC_FIFO 0x00040000 65 #define ESDHC_DMA_SNOOP 0x00000040 66 67 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */ 68