From 7fdf9b05c73b79c4d9a85b5a9905efa10ee482a6 Mon Sep 17 00:00:00 2001 From: Peng Ma Date: Mon, 30 Sep 2019 02:04:40 +0000 Subject: dmaengine: fsl-dpaa2-qdma: Add NXP dpaa2 qDMA controller driver for Layerscape SoCs DPPA2(Data Path Acceleration Architecture 2) qDMA supports virtualized channel by allowing DMA jobs to be enqueued into different work queues. Core can initiate a DMA transaction by preparing a frame descriptor(FD) for each DMA job and enqueuing this job through a hardware portal. DPAA2 components can also prepare a FD and enqueue a DMA job through a hardware portal. The qDMA prefetches DMA jobs through DPAA2 hardware portal. It then schedules and dispatches to internal DMA hardware engines, which generate read and write requests. Both qDMA source data and destination data can be either contiguous or non-contiguous using one or more scatter/gather tables. The qDMA supports global bandwidth flow control where all DMA transactions are stalled if the bandwidth threshold has been reached. Also supported are transaction based read throttling. Add NXP dppa2 qDMA to support some of Layerscape SoCs. such as: LS1088A, LS208xA, LX2, etc. Signed-off-by: Peng Ma Link: https://lore.kernel.org/r/20190930020440.7754-2-peng.ma@nxp.com Signed-off-by: Vinod Koul --- drivers/dma/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/dma/Makefile') diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index f5ce8665e944..b3d48f928328 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -75,6 +75,7 @@ obj-$(CONFIG_UNIPHIER_MDMAC) += uniphier-mdmac.o obj-$(CONFIG_XGENE_DMA) += xgene-dma.o obj-$(CONFIG_ZX_DMA) += zx_dma.o obj-$(CONFIG_ST_FDMA) += st_fdma.o +obj-$(CONFIG_FSL_DPAA2_QDMA) += fsl-dpaa2-qdma/ obj-y += mediatek/ obj-y += qcom/ -- cgit