2 * TXx9 SoC DMA Controller
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
9 #ifndef __ASM_TXX9_DMAC_H
10 #define __ASM_TXX9_DMAC_H
12 #include <linux/dmaengine.h>
14 #define TXX9_DMA_MAX_NR_CHANNELS 4
17 * struct txx9dmac_platform_data - Controller configuration parameters
18 * @memcpy_chan: Channel used for DMA_MEMCPY
19 * @have_64bit_regs: DMAC have 64 bit registers
21 struct txx9dmac_platform_data {
27 * struct txx9dmac_chan_platform_data - Channel configuration parameters
28 * @dmac_dev: A platform device for DMAC
30 struct txx9dmac_chan_platform_data {
31 struct platform_device *dmac_dev;
35 * struct txx9dmac_slave - Controller-specific information about a slave
36 * @tx_reg: physical address of data register used for
37 * memory-to-peripheral transfers
38 * @rx_reg: physical address of data register used for
39 * peripheral-to-memory transfers
40 * @reg_width: peripheral register width
42 struct txx9dmac_slave {
45 unsigned int reg_width;
48 void txx9_dmac_init(int id, unsigned long baseaddr, int irq,
49 const struct txx9dmac_platform_data *pdata);
51 #endif /* __ASM_TXX9_DMAC_H */