Siemens boards are now using DFU in fullspeed only. For this CONFIG_USB_GADGET_DUALSPEED is undefined.
Signed-off-by: Heiko Schocher hs@denx.de Cc: Tom Rini trini@ti.com Cc: Lukasz Majewski l.majewski@samsung.com Cc: Marek Vasut marex@denx.de Cc: Liu Bin b-liu@ti.com Cc: Lukas Stockmann lukas.stockmann@siemens.com
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On the siemens board this is needed because of a protection circuit. The device is 24V AC powered, if someone uses a non galvanically isolated transformer and misswires it, it could burn down the USB host. That's why we have a protection on the USB side which limits the speed to 12Mbit/sec.
- changes for v2: - get rid of config option CONFIG_DFU_FULLSPEED as Bin Liu suggested. --- include/configs/siemens-am33x-common.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/configs/siemens-am33x-common.h b/include/configs/siemens-am33x-common.h index b8fb77e..4dcd690 100644 --- a/include/configs/siemens-am33x-common.h +++ b/include/configs/siemens-am33x-common.h @@ -233,7 +233,7 @@ #define CONFIG_MUSB_GADGET #define CONFIG_MUSB_PIO_ONLY #define CONFIG_MUSB_DISABLE_BULK_COMBINE_SPLIT -#define CONFIG_USB_GADGET_DUALSPEED +#undef CONFIG_USB_GADGET_DUALSPEED #define CONFIG_USB_GADGET_VBUS_DRAW 2 #define CONFIG_MUSB_HOST