📄 dma.h
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#ifndef __ASM_CPU_SH3_DMA_H#define __ASM_CPU_SH3_DMA_H#define SH_DMAC_BASE 0xa4000020/* Definitions for the SuperH DMAC */#define TM_BURST 0x00000020#define TS_8 0x00000000#define TS_16 0x00000008#define TS_32 0x00000010#define TS_128 0x00000018#define CHCR_TS_MASK 0x18#define CHCR_TS_SHIFT 3#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,};static unsigned int ts_shift[] __attribute__ ((used)) = { [XMIT_SZ_8BIT] = 0, [XMIT_SZ_16BIT] = 1, [XMIT_SZ_32BIT] = 2, [XMIT_SZ_128BIT] = 4,};#endif /* __ASM_CPU_SH3_DMA_H */
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