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