mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.9 KiB
51 lines
1.9 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* This header provides macros for at91 dma bindings. |
|
* |
|
* Copyright (C) 2013 Ludovic Desroches <[email protected]> |
|
*/ |
|
|
|
#ifndef __DT_BINDINGS_AT91_DMA_H__ |
|
#define __DT_BINDINGS_AT91_DMA_H__ |
|
|
|
/* ---------- HDMAC ---------- */ |
|
|
|
/* |
|
* Source and/or destination peripheral ID |
|
*/ |
|
#define AT91_DMA_CFG_PER_ID_MASK (0xff) |
|
#define AT91_DMA_CFG_PER_ID(id) (id & AT91_DMA_CFG_PER_ID_MASK) |
|
|
|
/* |
|
* FIFO configuration: it defines when a request is serviced. |
|
*/ |
|
#define AT91_DMA_CFG_FIFOCFG_OFFSET (8) |
|
#define AT91_DMA_CFG_FIFOCFG_MASK (0xf << AT91_DMA_CFG_FIFOCFG_OFFSET) |
|
#define AT91_DMA_CFG_FIFOCFG_HALF (0x0 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* half FIFO (default behavior) */ |
|
#define AT91_DMA_CFG_FIFOCFG_ALAP (0x1 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* largest defined AHB burst */ |
|
#define AT91_DMA_CFG_FIFOCFG_ASAP (0x2 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* single AHB access */ |
|
|
|
|
|
/* ---------- XDMAC ---------- */ |
|
#define AT91_XDMAC_DT_MEM_IF_MASK (0x1) |
|
#define AT91_XDMAC_DT_MEM_IF_OFFSET (13) |
|
#define AT91_XDMAC_DT_MEM_IF(mem_if) (((mem_if) & AT91_XDMAC_DT_MEM_IF_MASK) \ |
|
<< AT91_XDMAC_DT_MEM_IF_OFFSET) |
|
#define AT91_XDMAC_DT_GET_MEM_IF(cfg) (((cfg) >> AT91_XDMAC_DT_MEM_IF_OFFSET) \ |
|
& AT91_XDMAC_DT_MEM_IF_MASK) |
|
|
|
#define AT91_XDMAC_DT_PER_IF_MASK (0x1) |
|
#define AT91_XDMAC_DT_PER_IF_OFFSET (14) |
|
#define AT91_XDMAC_DT_PER_IF(per_if) (((per_if) & AT91_XDMAC_DT_PER_IF_MASK) \ |
|
<< AT91_XDMAC_DT_PER_IF_OFFSET) |
|
#define AT91_XDMAC_DT_GET_PER_IF(cfg) (((cfg) >> AT91_XDMAC_DT_PER_IF_OFFSET) \ |
|
& AT91_XDMAC_DT_PER_IF_MASK) |
|
|
|
#define AT91_XDMAC_DT_PERID_MASK (0x7f) |
|
#define AT91_XDMAC_DT_PERID_OFFSET (24) |
|
#define AT91_XDMAC_DT_PERID(perid) (((perid) & AT91_XDMAC_DT_PERID_MASK) \ |
|
<< AT91_XDMAC_DT_PERID_OFFSET) |
|
#define AT91_XDMAC_DT_GET_PERID(cfg) (((cfg) >> AT91_XDMAC_DT_PERID_OFFSET) \ |
|
& AT91_XDMAC_DT_PERID_MASK) |
|
|
|
#endif /* __DT_BINDINGS_AT91_DMA_H__ */
|
|
|