arm/imx/imx23_apbdma.h

1.1.6.2  tls /* $Id: imx23_apbdma.h,v 1.1.6.2 2013/02/25 00:28:27 tls Exp $ */
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * Copyright (c) 2012 The NetBSD Foundation, Inc.
1.1.6.2  tls  * All rights reserved.
1.1.6.2  tls  *
1.1.6.2  tls  * This code is derived from software contributed to The NetBSD Foundation
1.1.6.2  tls  * by Petri Laakso.
1.1.6.2  tls  *
1.1.6.2  tls  * Redistribution and use in source and binary forms, with or without
1.1.6.2  tls  * modification, are permitted provided that the following conditions
1.1.6.2  tls  * are met:
1.1.6.2  tls  * 1. Redistributions of source code must retain the above copyright
1.1.6.2  tls  *    notice, this list of conditions and the following disclaimer.
1.1.6.2  tls  * 2. Redistributions in binary form must reproduce the above copyright
1.1.6.2  tls  *    notice, this list of conditions and the following disclaimer in the
1.1.6.2  tls  *    documentation and/or other materials provided with the distribution.
1.1.6.2  tls  *
1.1.6.2  tls  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1.1.6.2  tls  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1.1.6.2  tls  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.1.6.2  tls  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
1.1.6.2  tls  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.1.6.2  tls  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.1.6.2  tls  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.1.6.2  tls  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.1.6.2  tls  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.1.6.2  tls  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.1.6.2  tls  * POSSIBILITY OF SUCH DAMAGE.
1.1.6.2  tls  */
1.1.6.2  tls
1.1.6.2  tls #ifndef _ARM_IMX_IMX23_APBDMA_H_
1.1.6.2  tls #define _ARM_IMX_IMX23_APBDMA_H_
1.1.6.2  tls
1.1.6.2  tls #include <sys/cdefs.h>
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * Public interface to apbdma for device drivers.
1.1.6.2  tls  */
1.1.6.2  tls void * apbdma_dmamem_alloc(device_t, int, bus_size_t);
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * Common definitions for both APBH and APBX DMA.
1.1.6.2  tls  */
1.1.6.2  tls #define APBH_DMA_N_CHANNELS	8
1.1.6.2  tls #define APBX_DMA_N_CHANNELS	16
1.1.6.2  tls
1.1.6.2  tls #define CMDPIOWORDS_MAX	3
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * DMA command type.
1.1.6.2  tls  */
1.1.6.2  tls #define NO_DMA_XFER	0
1.1.6.2  tls #define DMA_WRITE	1
1.1.6.2  tls #define DMA_READ	2
1.1.6.2  tls #define DMA_SENSE	3
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * Command word 0.
1.1.6.2  tls  */
1.1.6.2  tls #define NEXTCMDADDR	__BITS(31, 0)
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * Command word 1.
1.1.6.2  tls  */
1.1.6.2  tls #define XFER_COUNT	__BITS(31, 16)
1.1.6.2  tls #define CMDPIOWORDS	__BITS(15, 12)
1.1.6.2  tls #define CMDWORD1_RSVD0	__BITS(11, 8)
1.1.6.2  tls #define WAIT4ENDCMD	__BIT(7)
1.1.6.2  tls #define SEMAPHORE	__BIT(6)
1.1.6.2  tls #define NANDWAIT4READY	__BIT(5)
1.1.6.2  tls #define NANDLOCK	__BIT(4)
1.1.6.2  tls #define IRQONCMPLT	__BIT(3)
1.1.6.2  tls #define CHAIN		__BIT(2)
1.1.6.2  tls #define COMMAND		__BITS(1, 0)
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * Command word 2.
1.1.6.2  tls  */
1.1.6.2  tls #define BUF_ADDR	__BITS(31, 0)
1.1.6.2  tls
1.1.6.2  tls /*
1.1.6.2  tls  * Command word 3-n.
1.1.6.2  tls  */
1.1.6.2  tls #define PIOWORD		__BITS(31, 0)
1.1.6.2  tls
1.1.6.2  tls #endif /* !_ARM_IMX_IMX23_APBDMA_H_ */