diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/dma/sh/shdma-arm.h | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/drivers/dma/sh/shdma-arm.h b/drivers/dma/sh/shdma-arm.h deleted file mode 100644 index 7459f9a13b5b..000000000000 --- a/drivers/dma/sh/shdma-arm.h +++ /dev/null @@ -1,48 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Renesas SuperH DMA Engine support - * - * Copyright (C) 2013 Renesas Electronics, Inc. - */ - -#ifndef SHDMA_ARM_H -#define SHDMA_ARM_H - -#include "shdma.h" - -/* Transmit sizes and respective CHCR register values */ -enum { - XMIT_SZ_8BIT = 0, - XMIT_SZ_16BIT = 1, - XMIT_SZ_32BIT = 2, - XMIT_SZ_64BIT = 7, - XMIT_SZ_128BIT = 3, - XMIT_SZ_256BIT = 4, - XMIT_SZ_512BIT = 5, -}; - -/* log2(size / 8) - used to calculate number of transfers */ -#define SH_DMAE_TS_SHIFT { \ - [XMIT_SZ_8BIT] = 0, \ - [XMIT_SZ_16BIT] = 1, \ - [XMIT_SZ_32BIT] = 2, \ - [XMIT_SZ_64BIT] = 3, \ - [XMIT_SZ_128BIT] = 4, \ - [XMIT_SZ_256BIT] = 5, \ - [XMIT_SZ_512BIT] = 6, \ -} - -#define TS_LOW_BIT 0x3 /* --xx */ -#define TS_HI_BIT 0xc /* xx-- */ - -#define TS_LOW_SHIFT (3) -#define TS_HI_SHIFT (20 - 2) /* 2 bits for shifted low TS */ - -#define TS_INDEX2VAL(i) \ - ((((i) & TS_LOW_BIT) << TS_LOW_SHIFT) |\ - (((i) & TS_HI_BIT) << TS_HI_SHIFT)) - -#define CHCR_TX(xmit_sz) (DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL((xmit_sz))) -#define CHCR_RX(xmit_sz) (DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL((xmit_sz))) - -#endif |