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dmaengine: fsl-qdma: Add qDMA controller driver for Layerscape SoCs

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NXP Queue DMA controller(qDMA) on Layerscape SoCs supports channel
virtuallization by allowing DMA jobs to be enqueued into different
command queues.

Signed-off-by: Wen He <wen.he_1@nxp.com>
Signed-off-by: Jiaheng Fan <jiaheng.fan@nxp.com>
Signed-off-by: Peng Ma <peng.ma@nxp.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Peng Ma 2018-10-30 10:36:00 +08:00 committed by Vinod Koul
parent a1ff82a9c1
commit b092529e0a
3 changed files with 1273 additions and 0 deletions
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14
drivers/dma/Kconfig
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@ -218,6 +218,20 @@ config FSL_EDMA
multiplexing capability for DMA request sources(slot). multiplexing capability for DMA request sources(slot).
This module can be found on Freescale Vybrid and LS-1 SoCs. This module can be found on Freescale Vybrid and LS-1 SoCs.
config FSL_QDMA
tristate "NXP Layerscape qDMA engine support"
depends on ARM || ARM64
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
select DMA_ENGINE_RAID
select ASYNC_TX_ENABLE_CHANNEL_SWITCH
help
Support the NXP Layerscape qDMA engine with command queue and legacy mode.
Channel virtualization is supported through enqueuing of DMA jobs to,
or dequeuing DMA jobs from, different work queues.
This module can be found on NXP Layerscape SoCs.
The qdma driver only work on SoCs with a DPAA hardware block.
config FSL_RAID config FSL_RAID
tristate "Freescale RAID engine Support" tristate "Freescale RAID engine Support"
depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH

1
drivers/dma/Makefile
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@ -33,6 +33,7 @@ obj-$(CONFIG_EP93XX_DMA) += ep93xx_dma.o
obj-$(CONFIG_FSL_DMA) += fsldma.o obj-$(CONFIG_FSL_DMA) += fsldma.o
obj-$(CONFIG_FSL_EDMA) += fsl-edma.o fsl-edma-common.o obj-$(CONFIG_FSL_EDMA) += fsl-edma.o fsl-edma-common.o
obj-$(CONFIG_MCF_EDMA) += mcf-edma.o fsl-edma-common.o obj-$(CONFIG_MCF_EDMA) += mcf-edma.o fsl-edma-common.o
obj-$(CONFIG_FSL_QDMA) += fsl-qdma.o
obj-$(CONFIG_FSL_RAID) += fsl_raid.o obj-$(CONFIG_FSL_RAID) += fsl_raid.o
obj-$(CONFIG_HSU_DMA) += hsu/ obj-$(CONFIG_HSU_DMA) += hsu/
obj-$(CONFIG_IMG_MDC_DMA) += img-mdc-dma.o obj-$(CONFIG_IMG_MDC_DMA) += img-mdc-dma.o

1258
drivers/dma/fsl-qdma.c Normal file
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