| Message ID | 20170119111334.14718-3-abailon@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 01/19/2017 02:13 PM, Alexandre Bailon wrote: > 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@baylibre.com> > --- > drivers/dma/Kconfig | 6 +++--- > drivers/dma/cppi41.c | 24 ++++++++++++++++++++++++ > 2 files changed, 27 insertions(+), 3 deletions(-) > > diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig > index 0d6a96e..03ae2a1 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 "CPPI41 DMA support" Grr... CPPI 4.1, please. > + 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 9767b97..f6f2d84 100644 > --- a/drivers/dma/cppi41.c > +++ b/drivers/dma/cppi41.c [...] > @@ -951,8 +965,18 @@ static const struct cppi_glue_infos am335x_usb_infos = { > .qmgr_num_pend = 5, > }; > > +static const struct cppi_glue_infos da8xx_usb_infos = { > + .isr = cppi41_irq, Isn't the ISR the same for all glues now? [...] MBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 01/19/2017 07:15 PM, Sergei Shtylyov wrote: > On 01/19/2017 02:13 PM, Alexandre Bailon wrote: > > > 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@baylibre.com> > > --- > > drivers/dma/Kconfig | 6 +++--- > > drivers/dma/cppi41.c | 24 ++++++++++++++++++++++++ > > 2 files changed, 27 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig > > index 0d6a96e..03ae2a1 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 "CPPI41 DMA support" > > Grr... CPPI 4.1, please. > > > + 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 9767b97..f6f2d84 100644 > > --- a/drivers/dma/cppi41.c > > +++ b/drivers/dma/cppi41.c > [...] > > @@ -951,8 +965,18 @@ static const struct cppi_glue_infos > > am335x_usb_infos = { > > .qmgr_num_pend = 5, > > }; > > > > +static const struct cppi_glue_infos da8xx_usb_infos = { > > + .isr = cppi41_irq, > > Isn't the ISR the same for all glues now? True. I should remove isr callback. > > [...] > > MBR, Sergei > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 0d6a96e..03ae2a1 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 "CPPI41 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 9767b97..f6f2d84 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 { irqreturn_t (*isr)(int irq, void *data); const struct chan_queues *queues_rx; @@ -951,8 +965,18 @@ static const struct cppi_glue_infos am335x_usb_infos = { .qmgr_num_pend = 5, }; +static const struct cppi_glue_infos da8xx_usb_infos = { + .isr = cppi41_irq, + .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);
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@baylibre.com> --- drivers/dma/Kconfig | 6 +++--- drivers/dma/cppi41.c | 24 ++++++++++++++++++++++++ 2 files changed, 27 insertions(+), 3 deletions(-)