linux/include/asm-arm/arch-imx/dma.h
Pavel Pisa 999331af45 [ARM] 3444/1: i.MX: Scatter-gather DMA emulation for i.MX/MX1
Patch from Pavel Pisa

This patch contains simplified set of changes to add scatter-gather
emulation capability into MX1 DMA support. The result should
be still usable for next combination of DMA transfers
  Statter-Gather/linear/2D/FIFO to linear/2D/FIFO and
  linear/2D/FIFO to Statter-Gather/2D/FIFO
The patch corrects channel priority allocation to be compatible
with MX1 hardware implementation.
Previous code has not been adapted from its PXA original.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-02 16:58:37 +01:00

57 lines
1.8 KiB
C

/*
* linux/include/asm-arm/imxads/dma.h
*
* Copyright (C) 1997,1998 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
typedef enum {
DMA_PRIO_HIGH = 0,
DMA_PRIO_MEDIUM = 1,
DMA_PRIO_LOW = 2
} imx_dma_prio;
#define DMA_REQ_UART3_T 2
#define DMA_REQ_UART3_R 3
#define DMA_REQ_SSI2_T 4
#define DMA_REQ_SSI2_R 5
#define DMA_REQ_CSI_STAT 6
#define DMA_REQ_CSI_R 7
#define DMA_REQ_MSHC 8
#define DMA_REQ_DSPA_DCT_DOUT 9
#define DMA_REQ_DSPA_DCT_DIN 10
#define DMA_REQ_DSPA_MAC 11
#define DMA_REQ_EXT 12
#define DMA_REQ_SDHC 13
#define DMA_REQ_SPI1_R 14
#define DMA_REQ_SPI1_T 15
#define DMA_REQ_SSI_T 16
#define DMA_REQ_SSI_R 17
#define DMA_REQ_ASP_DAC 18
#define DMA_REQ_ASP_ADC 19
#define DMA_REQ_USP_EP(x) (20+(x))
#define DMA_REQ_SPI2_R 26
#define DMA_REQ_SPI2_T 27
#define DMA_REQ_UART2_T 28
#define DMA_REQ_UART2_R 29
#define DMA_REQ_UART1_T 30
#define DMA_REQ_UART1_R 31
#endif /* _ASM_ARCH_DMA_H */