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| 1 | /* SPDX-License-Identifier: GPL-2.0 |
|---|---|
| 2 | * |
| 3 | * Common header for the legacy SH DMA driver and the new dmaengine driver |
| 4 | * |
| 5 | * extracted from arch/sh/include/asm/dma-sh.h: |
| 6 | * |
| 7 | * Copyright (C) 2000 Takashi YOSHII |
| 8 | * Copyright (C) 2003 Paul Mundt |
| 9 | */ |
| 10 | #ifndef DMA_REGISTER_H |
| 11 | #define DMA_REGISTER_H |
| 12 | |
| 13 | /* DMA registers */ |
| 14 | #define SAR 0x00 /* Source Address Register */ |
| 15 | #define DAR 0x04 /* Destination Address Register */ |
| 16 | #define TCR 0x08 /* Transfer Count Register */ |
| 17 | #define CHCR 0x0C /* Channel Control Register */ |
| 18 | #define DMAOR 0x40 /* DMA Operation Register */ |
| 19 | |
| 20 | /* DMAOR definitions */ |
| 21 | #define DMAOR_AE 0x00000004 /* Address Error Flag */ |
| 22 | #define DMAOR_NMIF 0x00000002 |
| 23 | #define DMAOR_DME 0x00000001 /* DMA Master Enable */ |
| 24 | |
| 25 | /* Definitions for the SuperH DMAC */ |
| 26 | #define REQ_L 0x00000000 |
| 27 | #define REQ_E 0x00080000 |
| 28 | #define RACK_H 0x00000000 |
| 29 | #define RACK_L 0x00040000 |
| 30 | #define ACK_R 0x00000000 |
| 31 | #define ACK_W 0x00020000 |
| 32 | #define ACK_H 0x00000000 |
| 33 | #define ACK_L 0x00010000 |
| 34 | #define DM_INC 0x00004000 /* Destination addresses are incremented */ |
| 35 | #define DM_DEC 0x00008000 /* Destination addresses are decremented */ |
| 36 | #define DM_FIX 0x0000c000 /* Destination address is fixed */ |
| 37 | #define SM_INC 0x00001000 /* Source addresses are incremented */ |
| 38 | #define SM_DEC 0x00002000 /* Source addresses are decremented */ |
| 39 | #define SM_FIX 0x00003000 /* Source address is fixed */ |
| 40 | #define RS_IN 0x00000200 |
| 41 | #define RS_OUT 0x00000300 |
| 42 | #define RS_AUTO 0x00000400 /* Auto Request */ |
| 43 | #define RS_ERS 0x00000800 /* DMA extended resource selector */ |
| 44 | #define TS_BLK 0x00000040 |
| 45 | #define TM_BUR 0x00000020 |
| 46 | #define CHCR_DE 0x00000001 /* DMA Enable */ |
| 47 | #define CHCR_TE 0x00000002 /* Transfer End Flag */ |
| 48 | #define CHCR_IE 0x00000004 /* Interrupt Enable */ |
| 49 | |
| 50 | #endif |
| 51 |
Warning: This file is not a C or C++ file. It does not have highlighting.