From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- arch/sh/include/cpu-sh3/cpu/dma-register.h | 41 ++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 arch/sh/include/cpu-sh3/cpu/dma-register.h (limited to 'arch/sh/include/cpu-sh3/cpu/dma-register.h') diff --git a/arch/sh/include/cpu-sh3/cpu/dma-register.h b/arch/sh/include/cpu-sh3/cpu/dma-register.h new file mode 100644 index 00000000..2349e488 --- /dev/null +++ b/arch/sh/include/cpu-sh3/cpu/dma-register.h @@ -0,0 +1,41 @@ +/* + * SH3 CPU-specific DMA definitions, used by both DMA drivers + * + * Copyright (C) 2010 Guennadi Liakhovetski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef CPU_DMA_REGISTER_H +#define CPU_DMA_REGISTER_H + +#define CHCR_TS_LOW_MASK 0x18 +#define CHCR_TS_LOW_SHIFT 3 +#define CHCR_TS_HIGH_MASK 0 +#define CHCR_TS_HIGH_SHIFT 0 + +#define DMAOR_INIT DMAOR_DME + +/* + * The SuperH DMAC supports a number of transmit sizes, we list them here, + * with their respective values as they appear in the CHCR registers. + */ +enum { + XMIT_SZ_8BIT, + XMIT_SZ_16BIT, + XMIT_SZ_32BIT, + XMIT_SZ_128BIT, +}; + +/* log2(size / 8) - used to calculate number of transfers */ +#define TS_SHIFT { \ + [XMIT_SZ_8BIT] = 0, \ + [XMIT_SZ_16BIT] = 1, \ + [XMIT_SZ_32BIT] = 2, \ + [XMIT_SZ_128BIT] = 4, \ +} + +#define TS_INDEX2VAL(i) (((i) & 3) << CHCR_TS_LOW_SHIFT) + +#endif -- cgit