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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/sh/include/asm/dma-register.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sh/include/asm/dma-register.h')
| -rw-r--r-- | arch/sh/include/asm/dma-register.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/sh/include/asm/dma-register.h b/arch/sh/include/asm/dma-register.h new file mode 100644 index 000000000..724dab912 --- /dev/null +++ b/arch/sh/include/asm/dma-register.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Common header for the legacy SH DMA driver and the new dmaengine driver + * + * extracted from arch/sh/include/asm/dma-sh.h: + * + * Copyright (C) 2000 Takashi YOSHII + * Copyright (C) 2003 Paul Mundt + */ +#ifndef DMA_REGISTER_H +#define DMA_REGISTER_H + +/* DMA registers */ +#define SAR 0x00 /* Source Address Register */ +#define DAR 0x04 /* Destination Address Register */ +#define TCR 0x08 /* Transfer Count Register */ +#define CHCR 0x0C /* Channel Control Register */ +#define DMAOR 0x40 /* DMA Operation Register */ + +/* DMAOR definitions */ +#define DMAOR_AE 0x00000004 /* Address Error Flag */ +#define DMAOR_NMIF 0x00000002 +#define DMAOR_DME 0x00000001 /* DMA Master Enable */ + +/* Definitions for the SuperH DMAC */ +#define REQ_L 0x00000000 +#define REQ_E 0x00080000 +#define RACK_H 0x00000000 +#define RACK_L 0x00040000 +#define ACK_R 0x00000000 +#define ACK_W 0x00020000 +#define ACK_H 0x00000000 +#define ACK_L 0x00010000 +#define DM_INC 0x00004000 /* Destination addresses are incremented */ +#define DM_DEC 0x00008000 /* Destination addresses are decremented */ +#define DM_FIX 0x0000c000 /* Destination address is fixed */ +#define SM_INC 0x00001000 /* Source addresses are incremented */ +#define SM_DEC 0x00002000 /* Source addresses are decremented */ +#define SM_FIX 0x00003000 /* Source address is fixed */ +#define RS_IN 0x00000200 +#define RS_OUT 0x00000300 +#define RS_AUTO 0x00000400 /* Auto Request */ +#define RS_ERS 0x00000800 /* DMA extended resource selector */ +#define TS_BLK 0x00000040 +#define TM_BUR 0x00000020 +#define CHCR_DE 0x00000001 /* DMA Enable */ +#define CHCR_TE 0x00000002 /* Transfer End Flag */ +#define CHCR_IE 0x00000004 /* Interrupt Enable */ + +#endif |