The DA8xx has a CPPI 4.1 DMA controller. This is add the glue layer required to make it work on DA8xx. Signed-off-by: Alexandre Bailon <abailon@xxxxxxxxxxxx> --- drivers/dma/Kconfig | 6 +++--- drivers/dma/cppi41.c | 23 +++++++++++++++++++++++ 2 files changed, 26 insertions(+), 3 deletions(-) diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 0d6a96e..2a31e1a 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -514,12 +514,12 @@ config TIMB_DMA Enable support for the Timberdale FPGA DMA engine. config TI_CPPI41 - tristate "AM33xx CPPI41 DMA support" - depends on ARCH_OMAP + tristate "CPPI 4.1 DMA support" + depends on (ARCH_OMAP || ARCH_DAVINCI_DA8XX) select DMA_ENGINE help The Communications Port Programming Interface (CPPI) 4.1 DMA engine - is currently used by the USB driver on AM335x platforms. + is currently used by the USB driver on AM335x and DA8xx platforms. config TI_DMA_CROSSBAR bool diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c index 21a4f79..5c501da 100644 --- a/drivers/dma/cppi41.c +++ b/drivers/dma/cppi41.c @@ -221,6 +221,20 @@ static const struct chan_queues am335x_usb_queues_rx[] = { [29] = { .submit = 30, .complete = 155}, }; +static const struct chan_queues da8xx_usb_queues_tx[] = { + [0] = { .submit = 16, .complete = 24}, + [1] = { .submit = 18, .complete = 24}, + [2] = { .submit = 20, .complete = 24}, + [3] = { .submit = 22, .complete = 24}, +}; + +static const struct chan_queues da8xx_usb_queues_rx[] = { + [0] = { .submit = 1, .complete = 26}, + [1] = { .submit = 3, .complete = 26}, + [2] = { .submit = 5, .complete = 26}, + [3] = { .submit = 7, .complete = 26}, +}; + struct cppi_glue_infos { const struct chan_queues *queues_rx; const struct chan_queues *queues_tx; @@ -949,8 +963,17 @@ static const struct cppi_glue_infos am335x_usb_infos = { .qmgr_num_pend = 5, }; +static const struct cppi_glue_infos da8xx_usb_infos = { + .queues_rx = da8xx_usb_queues_rx, + .queues_tx = da8xx_usb_queues_tx, + .td_queue = { .submit = 31, .complete = 0 }, + .first_completion_queue = 24, + .qmgr_num_pend = 2, +}; + static const struct of_device_id cppi41_dma_ids[] = { { .compatible = "ti,am3359-cppi41", .data = &am335x_usb_infos}, + { .compatible = "ti,da830-cppi41", .data = &da8xx_usb_infos}, {}, }; MODULE_DEVICE_TABLE(of, cppi41_dma_ids); -- 2.10.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html