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| author | Sebastian Andrzej Siewior | 2013-06-20 12:13:04 +0200 |
|---|---|---|
| committer | Felipe Balbi | 2013-08-09 16:40:16 +0200 |
| commit | 9b3452d1fa3c017d3664ff9e6a601daa6e0576eb (patch) | |
| tree | ac2fdd71c45975f2430d094ef138ccd0a2d835c0 /drivers/usb/musb/Kconfig | |
| parent | usb: musb: dsps: use proper child nodes (diff) | |
| download | kernel-qcow2-linux-9b3452d1fa3c017d3664ff9e6a601daa6e0576eb.tar.gz kernel-qcow2-linux-9b3452d1fa3c017d3664ff9e6a601daa6e0576eb.tar.xz kernel-qcow2-linux-9b3452d1fa3c017d3664ff9e6a601daa6e0576eb.zip | |
usb: musb dma: add cppi41 dma driver
This driver is currently used by musb' cppi41 couter part. I may merge
both dma engine user of musb at some point but not just yet.
The driver seems to work in RX/TX mode in host mode, tested on mass
storage. I increaed the size of the TX / RX transfers and waited for the
core code to cancel a transfers and it seems to recover.
v2..3:
- use mall transfers on RX side and check data toggle.
- use rndis mode on tx side so we haveon interrupt for 4096 transfers.
- remove custom "transferred" hack and use dmaengine_tx_status() to
compute the total amount of data that has been transferred.
- cancel transfers and reclaim descriptors
v1..v2:
- RX path added
- dma mode 0 & 1 is working
- device tree nodes re-created.
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <djbw@fb.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb/Kconfig')
| -rw-r--r-- | drivers/usb/musb/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index b7257ae038fd..04658d7666e9 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -129,6 +129,10 @@ config USB_TI_CPPI_DMA help Enable DMA transfers when TI CPPI DMA is available. +config USB_TI_CPPI41_DMA + bool 'TI CPPI 4.1 (AM335x)' + depends on ARCH_OMAP + config USB_TUSB_OMAP_DMA bool 'TUSB 6010' depends on USB_MUSB_TUSB6010 |