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dmaengine: tegra: Add tegra gpcdma driver

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Adding GPC DMA controller driver for Tegra. The driver supports dma
transfers between memory to memory, IO peripheral to memory and
memory to IO peripheral.

Co-developed-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Co-developed-by: Rajesh Gumasta <rgumasta@nvidia.com>
Signed-off-by: Rajesh Gumasta <rgumasta@nvidia.com>
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20220225132044.14478-3-akhilrajeev@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Akhil R 2022-02-25 18:50:44 +05:30 committed by Vinod Koul
parent 729106266a
commit ee17028009
3 changed files with 1519 additions and 0 deletions
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11
drivers/dma/Kconfig
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@ -629,6 +629,17 @@ config TXX9_DMAC
Support the TXx9 SoC internal DMA controller. This can be
integrated in chips such as the Toshiba TX4927/38/39.
config TEGRA186_GPC_DMA
tristate "NVIDIA Tegra GPC DMA support"
depends on (ARCH_TEGRA || COMPILE_TEST) && ARCH_DMA_ADDR_T_64BIT
select DMA_ENGINE
help
Support for the NVIDIA Tegra General Purpose Central DMA controller.
The DMA controller has multiple DMA channels which can be configured
for different peripherals like UART, SPI, etc which are on APB bus.
This DMA controller transfers data from memory to peripheral FIFO
or vice versa. It also supports memory to memory data transfer.
config TEGRA20_APB_DMA
tristate "NVIDIA Tegra20 APB DMA support"
depends on ARCH_TEGRA || COMPILE_TEST

1
drivers/dma/Makefile
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@ -72,6 +72,7 @@ obj-$(CONFIG_STM32_MDMA) += stm32-mdma.o
obj-$(CONFIG_SPRD_DMA) += sprd-dma.o
obj-$(CONFIG_S3C24XX_DMAC) += s3c24xx-dma.o
obj-$(CONFIG_TXX9_DMAC) += txx9dmac.o
obj-$(CONFIG_TEGRA186_GPC_DMA) += tegra186-gpc-dma.o
obj-$(CONFIG_TEGRA20_APB_DMA) += tegra20-apb-dma.o
obj-$(CONFIG_TEGRA210_ADMA) += tegra210-adma.o
obj-$(CONFIG_TIMB_DMA) += timb_dma.o

1507
drivers/dma/tegra186-gpc-dma.c Normal file
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