From ffcc66e8fec52d9c8d909f21c627c80596582dca Mon Sep 17 00:00:00 2001 From: Vignesh R Date: Tue, 5 Feb 2019 17:31:24 +0530 Subject: 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 Signed-off-by: Grygorii Strashko Signed-off-by: Vignesh R --- include/linux/soc/ti/ti-udma.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 include/linux/soc/ti/ti-udma.h (limited to 'include/linux') 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 + */ + +#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 */ -- cgit