diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/usb/host/dwc2.c | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 90b2f78ec7..a7249b7511 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -245,3 +245,15 @@ config USB_DWC2 Hi-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) operation is compliant to the controller Supplement. If you want to enable this controller in host mode, say Y. + +if USB_DWC2 +config USB_DWC2_BUFFER_SIZE + int "Data buffer size in kB" + default 64 + ---help--- + By default 64 kB buffer is used but if amount of RAM avaialble on + the target is not enough to accommodate allocation of buffer of + that size it is possible to shrink it. Smaller sizes should be fine + because larger transactions could be split in smaller ones. + +endif # USB_DWC2 diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index 0efe645044..e436c711e7 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -25,7 +25,7 @@ DECLARE_GLOBAL_DATA_PTR; #define DWC2_HC_CHANNEL 0 #define DWC2_STATUS_BUF_SIZE 64 -#define DWC2_DATA_BUF_SIZE (64 * 1024) +#define DWC2_DATA_BUF_SIZE (CONFIG_USB_DWC2_BUFFER_SIZE * 1024) #define MAX_DEVICE 16 #define MAX_ENDPOINT 16 |