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From: Peter Ujfalusi <>
To: <>, <>, <>,
Cc: <>, <>,
	<>, <>,
	<>, <>,
	<>, <>, <>
Subject: [PATCH v5 14/15] dmaengine: ti: New driver for K3 UDMA - split#6: Kconfig and Makefile
Date: Mon, 11 Nov 2019 15:53:29 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Split patch for review containing:
Kconfig and Makefile changes

DMA driver for
Texas Instruments K3 NAVSS Unified DMA – Peripheral Root Complex (UDMA-P)

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 is
architected to facilitate the segmentation and reassembly of SoC DMA data
structure compliant packets to/from smaller data blocks that are natively
compatible with the specific requirements of each connected peripheral. Multiple
Tx and Rx channels are provided within the DMA which allow multiple segmentation
or reassembly operations to be ongoing. The DMA controller maintains state
information for each of the channels which allows packet segmentation and
reassembly operations to be time division multiplexed between channels in order
to share the underlying DMA hardware. An external DMA scheduler is used to
control the ordering and rate at which this multiplexing occurs for Transmit
operations. The ordering and rate of Receive operations is indirectly controlled
by the order in which blocks are pushed into the DMA on the Rx PSI-L interface.

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 / TR mode)
- MEM_TO_DEV (Packet / TR mode)
- Cyclic (Packet / TR mode)
- Metadata for descriptors

Signed-off-by: Peter Ujfalusi <>
 drivers/dma/ti/Kconfig  | 13 +++++++++++++
 drivers/dma/ti/Makefile |  1 +
 2 files changed, 14 insertions(+)

diff --git a/drivers/dma/ti/Kconfig b/drivers/dma/ti/Kconfig
index 72f3d2728178..a096f0ec3998 100644
--- a/drivers/dma/ti/Kconfig
+++ b/drivers/dma/ti/Kconfig
@@ -34,6 +34,19 @@ config DMA_OMAP
 	  Enable support for the TI sDMA (System DMA or DMA4) controller. This
 	  DMA engine is found on OMAP and DRA7xx parts.
+config TI_K3_UDMA
+	tristate "Texas Instruments UDMA support"
+	depends on ARCH_K3 || COMPILE_TEST
+	depends on TI_SCI_PROTOCOL
+	depends on TI_SCI_INTA_IRQCHIP
+	select DMA_ENGINE
+	select TI_K3_RINGACC
+	select TI_K3_PSIL
+        help
+	  Enable support for the TI UDMA (Unified DMA) controller. This
+	  DMA engine is used in AM65x.
 config TI_K3_PSIL
diff --git a/drivers/dma/ti/Makefile b/drivers/dma/ti/Makefile
index f8d912ad7eaf..9d787f009195 100644
--- a/drivers/dma/ti/Makefile
+++ b/drivers/dma/ti/Makefile
@@ -2,5 +2,6 @@
 obj-$(CONFIG_TI_CPPI41) += cppi41.o
 obj-$(CONFIG_TI_EDMA) += edma.o
 obj-$(CONFIG_DMA_OMAP) += omap-dma.o
+obj-$(CONFIG_TI_K3_UDMA) += k3-udma.o
 obj-$(CONFIG_TI_K3_PSIL) += k3-psil.o k3-psil-am654.o k3-psil-j721e.o
 obj-$(CONFIG_TI_DMA_CROSSBAR) += dma-crossbar.o

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

  parent reply	other threads:[~2019-11-11 13:53 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-11 13:53 [PATCH v5 00/15] dmaengine/soc: Add Texas Instruments UDMA support Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 01/15] bindings: soc: ti: add documentation for k3 ringacc Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 02/15] soc: ti: k3: add navss ringacc driver Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 03/15] dmaengine: doc: Add sections for per descriptor metadata support Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 04/15] dmaengine: Add metadata_ops for dma_async_tx_descriptor Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 05/15] dmaengine: Add support for reporting DMA cached data amount Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 06/15] dmaengine: ti: Add cppi5 header for K3 NAVSS/UDMA Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 07/15] dmaengine: ti: k3 PSI-L remote endpoint configuration Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 08/15] dt-bindings: dma: ti: Add document for K3 UDMA Peter Ujfalusi
2019-11-12 19:27   ` Rob Herring
2019-11-11 13:53 ` [PATCH v5 09/15] dmaengine: ti: New driver for K3 UDMA - split#1: defines, structs, io func Peter Ujfalusi
2019-11-11 15:25   ` Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 10/15] dmaengine: ti: New driver for K3 UDMA - split#2: probe/remove, xlate and filter_fn Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 11/15] dmaengine: ti: New driver for K3 UDMA - split#3: alloc/free chan_resources Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 12/15] dmaengine: ti: New driver for K3 UDMA - split#4: dma_device callbacks 1 Peter Ujfalusi
2019-11-11 13:53 ` [PATCH v5 13/15] dmaengine: ti: New driver for K3 UDMA - split#5: dma_device callbacks 2 Peter Ujfalusi
2019-11-11 13:53 ` Peter Ujfalusi [this message]
2019-11-11 13:53 ` [PATCH v5 15/15] dmaengine: ti: k3-udma: Add glue layer for non DMAengine users Peter Ujfalusi

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