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| 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/linux/soc | |
| parent | 17ef3c4c28a88d7953ed656888469b240980b9f3 (diff) | |
| download | u-boot-ffcc66e8fec52d9c8d909f21c627c80596582dca.tar.gz u-boot-ffcc66e8fec52d9c8d909f21c627c80596582dca.tar.xz u-boot-ffcc66e8fec52d9c8d909f21c627c80596582dca.zip | |
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/linux/soc')
| -rw-r--r-- | include/linux/soc/ti/ti-udma.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/soc/ti/ti-udma.h b/include/linux/soc/ti/ti-udma.h new file mode 100644 index 0000000000..e9d4226c48 --- /dev/null +++ b/include/linux/soc/ti/ti-udma.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com + * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> + */ + +#ifndef __TI_UDMA_H +#define __TI_UDMA_H + +/** + * struct ti_udma_drv_packet_data - TI UDMA transfer specific data + * + * @pkt_type: Packet Type - specific for each DMA client HW + * @dest_tag: Destination tag The source pointer. + * + * TI UDMA transfer specific data passed as part of DMA transfer to + * the DMA client HW in UDMA descriptors. + */ +struct ti_udma_drv_packet_data { + u32 pkt_type; + u32 dest_tag; +}; + +#endif /* __TI_UDMA_H */ |