diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dt-bindings/dma/dw-dmac.h | 14 | ||||
| -rw-r--r-- | include/linux/platform_data/dma-dw.h | 6 | ||||
| -rw-r--r-- | include/linux/sa11x0-dma.h | 24 |
3 files changed, 20 insertions, 24 deletions
diff --git a/include/dt-bindings/dma/dw-dmac.h b/include/dt-bindings/dma/dw-dmac.h new file mode 100644 index 000000000000..d1ca705c95b3 --- /dev/null +++ b/include/dt-bindings/dma/dw-dmac.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ + +#ifndef __DT_BINDINGS_DMA_DW_DMAC_H__ +#define __DT_BINDINGS_DMA_DW_DMAC_H__ + +/* + * Protection Control bits provide protection against illegal transactions. + * The protection bits[0:2] are one-to-one mapped to AHB HPROT[3:1] signals. + */ +#define DW_DMAC_HPROT1_PRIVILEGED_MODE (1 << 0) /* Privileged Mode */ +#define DW_DMAC_HPROT2_BUFFERABLE (1 << 1) /* DMA is bufferable */ +#define DW_DMAC_HPROT3_CACHEABLE (1 << 2) /* DMA is cacheable */ + +#endif /* __DT_BINDINGS_DMA_DW_DMAC_H__ */ diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h index 896cb71a382c..1a1d58ebffbf 100644 --- a/include/linux/platform_data/dma-dw.h +++ b/include/linux/platform_data/dma-dw.h @@ -49,6 +49,7 @@ struct dw_dma_slave { * @data_width: Maximum data width supported by hardware per AHB master * (in bytes, power of 2) * @multi_block: Multi block transfers supported by hardware per channel. + * @protctl: Protection control signals setting per channel. */ struct dw_dma_platform_data { unsigned int nr_channels; @@ -65,6 +66,11 @@ struct dw_dma_platform_data { unsigned char nr_masters; unsigned char data_width[DW_DMA_MAX_NR_MASTERS]; unsigned char multi_block[DW_DMA_MAX_NR_CHANNELS]; +#define CHAN_PROTCTL_PRIVILEGED BIT(0) +#define CHAN_PROTCTL_BUFFERABLE BIT(1) +#define CHAN_PROTCTL_CACHEABLE BIT(2) +#define CHAN_PROTCTL_MASK GENMASK(2, 0) + unsigned char protctl; }; #endif /* _PLATFORM_DATA_DMA_DW_H */ diff --git a/include/linux/sa11x0-dma.h b/include/linux/sa11x0-dma.h deleted file mode 100644 index 65839a58b8e5..000000000000 --- a/include/linux/sa11x0-dma.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * SA11x0 DMA Engine support - * - * Copyright (C) 2012 Russell King - * - * 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 __LINUX_SA11X0_DMA_H -#define __LINUX_SA11X0_DMA_H - -struct dma_chan; - -#if defined(CONFIG_DMA_SA11X0) || defined(CONFIG_DMA_SA11X0_MODULE) -bool sa11x0_dma_filter_fn(struct dma_chan *, void *); -#else -static inline bool sa11x0_dma_filter_fn(struct dma_chan *c, void *d) -{ - return false; -} -#endif - -#endif |