1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * arch/arm/mach-footbridge/include/mach/isa-dma.h 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Architecture DMA routines 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Copyright (C) 1998,1999 Russell King 8*4882a593Smuzhiyun * Copyright (C) 1998,1999 Philip Blundell 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun #ifndef __ASM_ARCH_DMA_H 11*4882a593Smuzhiyun #define __ASM_ARCH_DMA_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* 14*4882a593Smuzhiyun * The 21285 has two internal DMA channels; we call these 8 and 9. 15*4882a593Smuzhiyun * On CATS hardware we have an additional eight ISA dma channels 16*4882a593Smuzhiyun * numbered 0..7. 17*4882a593Smuzhiyun */ 18*4882a593Smuzhiyun #define _ISA_DMA(x) (0+(x)) 19*4882a593Smuzhiyun #define _DC21285_DMA(x) (8+(x)) 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define MAX_DMA_CHANNELS 10 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #define DMA_FLOPPY _ISA_DMA(2) 24*4882a593Smuzhiyun #define DMA_ISA_CASCADE _ISA_DMA(4) 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #endif /* _ASM_ARCH_DMA_H */ 27