diff options
| author | Vignesh R <vigneshr@ti.com> | 2019-02-05 17:31:24 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-04-11 20:07:12 -0400 |
| commit | ffcc66e8fec52d9c8d909f21c627c80596582dca (patch) | |
| tree | dbd8553dc7cd9c5140c11645fc09029948abeb16 /include/dt-bindings | |
| parent | 17ef3c4c28a88d7953ed656888469b240980b9f3 (diff) | |
dma: ti: add driver to K3 UDMA
The UDMA-P is intended to perform similar (but significantly upgraded) functions
as the packet-oriented DMA used on previous SoC devices. The UDMA-P module
supports the transmission and reception of various packet types.
The UDMA-P also supports acting as both a UTC and UDMA-C for its internal
channels. Channels in the UDMA-P can be configured to be either Packet-Based or
Third-Party channels on a channel by channel basis.
The initial driver supports:
- MEM_TO_MEM (TR mode)
- DEV_TO_MEM (Packet mode)
- MEM_TO_DEV (Packet mode)
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Diffstat (limited to 'include/dt-bindings')
| -rw-r--r-- | include/dt-bindings/dma/k3-udma.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/dt-bindings/dma/k3-udma.h b/include/dt-bindings/dma/k3-udma.h new file mode 100644 index 0000000000..670e1232b4 --- /dev/null +++ b/include/dt-bindings/dma/k3-udma.h @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com + */ + +#ifndef __DT_TI_UDMA_H +#define __DT_TI_UDMA_H + +#define UDMA_TR_MODE 0 +#define UDMA_PKT_MODE 1 + +#define UDMA_DIR_TX 0 +#define UDMA_DIR_RX 1 + +#define PSIL_STATIC_TR_NONE 0 +#define PSIL_STATIC_TR_XY 1 +#define PSIL_STATIC_TR_MCAN 2 + +#define UDMA_PDMA_TR_XY(id) \ + ti,psil-config##id { \ + linux,udma-mode = <UDMA_TR_MODE>; \ + statictr-type = <PSIL_STATIC_TR_XY>; \ + } + +#define UDMA_PDMA_PKT_XY(id) \ + ti,psil-config##id { \ + linux,udma-mode = <UDMA_PKT_MODE>; \ + statictr-type = <PSIL_STATIC_TR_XY>; \ + } + +#endif /* __DT_TI_UDMA_H */ |