diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-06-20 12:13:04 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-08-09 17:40:16 +0300 |
| commit | 9b3452d1fa3c017d3664ff9e6a601daa6e0576eb (patch) | |
| tree | ac2fdd71c45975f2430d094ef138ccd0a2d835c0 /drivers/usb/musb/musb_dma.h | |
| parent | 97238b35d5bbb5d5312d83c30a429824b777619f (diff) | |
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/musb_dma.h')
| -rw-r--r-- | drivers/usb/musb/musb_dma.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h index c8e67fde2156..1345a4ff041a 100644 --- a/drivers/usb/musb/musb_dma.h +++ b/drivers/usb/musb/musb_dma.h @@ -68,7 +68,7 @@ struct musb_hw_ep; #define is_dma_capable() (1) #endif -#ifdef CONFIG_USB_TI_CPPI_DMA +#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA) #define is_cppi_enabled() 1 #else #define is_cppi_enabled() 0 |