xref: /freebsd/sys/contrib/device-tree/include/dt-bindings/dma/dw-dmac.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
2 
3 #ifndef __DT_BINDINGS_DMA_DW_DMAC_H__
4 #define __DT_BINDINGS_DMA_DW_DMAC_H__
5 
6 /*
7  * Protection Control bits provide protection against illegal transactions.
8  * The protection bits[0:2] are one-to-one mapped to AHB HPROT[3:1] signals.
9  */
10 #define DW_DMAC_HPROT1_PRIVILEGED_MODE	(1 << 0)	/* Privileged Mode */
11 #define DW_DMAC_HPROT2_BUFFERABLE	(1 << 1)	/* DMA is bufferable */
12 #define DW_DMAC_HPROT3_CACHEABLE	(1 << 2)	/* DMA is cacheable */
13 
14 #endif /* __DT_BINDINGS_DMA_DW_DMAC_H__ */
15