1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) 2003-2006 Simtec Electronics
 4 *	Ben Dooks <ben@simtec.co.uk>
 5 *
 6 * Samsung S3C24XX DMA support
 7 */
 8
 9#ifndef __ASM_ARCH_DMA_H
10#define __ASM_ARCH_DMA_H __FILE__
11
12#include <linux/device.h>
13
14/* We use `virtual` dma channels to hide the fact we have only a limited
15 * number of DMA channels, and not of all of them (dependent on the device)
16 * can be attached to any DMA source. We therefore let the DMA core handle
17 * the allocation of hardware channels to clients.
18*/
19
20enum dma_ch {
21	DMACH_XD0 = 0,
22	DMACH_XD1,
23	DMACH_SDI,
24	DMACH_SPI0,
25	DMACH_SPI1,
26	DMACH_UART0,
27	DMACH_UART1,
28	DMACH_UART2,
29	DMACH_TIMER,
30	DMACH_I2S_IN,
31	DMACH_I2S_OUT,
32	DMACH_PCM_IN,
33	DMACH_PCM_OUT,
34	DMACH_MIC_IN,
35	DMACH_USB_EP1,
36	DMACH_USB_EP2,
37	DMACH_USB_EP3,
38	DMACH_USB_EP4,
39	DMACH_UART0_SRC2,	/* s3c2412 second uart sources */
40	DMACH_UART1_SRC2,
41	DMACH_UART2_SRC2,
42	DMACH_UART3,		/* s3c2443 has extra uart */
43	DMACH_UART3_SRC2,
44	DMACH_SPI0_TX,		/* s3c2443/2416/2450 hsspi0 */
45	DMACH_SPI0_RX,		/* s3c2443/2416/2450 hsspi0 */
46	DMACH_SPI1_TX,		/* s3c2443/2450 hsspi1 */
47	DMACH_SPI1_RX,		/* s3c2443/2450 hsspi1 */
48	DMACH_MAX,		/* the end entry */
49};
50
51#endif /* __ASM_ARCH_DMA_H */