Files
Linux_Drivers/linux_5.10/arch/arm/mach-footbridge/include/mach/isa-dma.h
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

27 lines
618 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* arch/arm/mach-footbridge/include/mach/isa-dma.h
*
* Architecture DMA routines
*
* Copyright (C) 1998,1999 Russell King
* Copyright (C) 1998,1999 Philip Blundell
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
/*
* The 21285 has two internal DMA channels; we call these 8 and 9.
* On CATS hardware we have an additional eight ISA dma channels
* numbered 0..7.
*/
#define _ISA_DMA(x) (0+(x))
#define _DC21285_DMA(x) (8+(x))
#define MAX_DMA_CHANNELS 10
#define DMA_FLOPPY _ISA_DMA(2)
#define DMA_ISA_CASCADE _ISA_DMA(4)
#endif /* _ASM_ARCH_DMA_H */