On 4 May 2016 at 11:44, Christo Radev <christo.ra...@gmail.com> wrote: > Hi to All, > > > I am trying to use USB OTG on A20-Olinuxino-Lime2-eMMC with own build of > Armbian 5.11, U-Boot 2016.05--rec1, mainline kernel 4.5.2 and Debian Jessie > without success. I have tested:
I don't think Wens changes for OTG is in 4.5.2. The following should be in arch/arm/configs/sunxi_defconfig CONFIG_USB_MUSB_HDRC=y CONFIG_USB_MUSB_SUNXI=y CONFIG_NOP_USB_XCEIV=y CONFIG_USB_GADGET=y They're in linux-next, CK > > both 'host' and 'otg' types for dr_mode in device tree; > connect USB OTG to other board's USB Host; > attach USB mass storage and other devices; > attach other self powered devices; > try to load modules like extcon_gpio, extcon_usb_gpio, u_serial, u_ether; > rebuild kernel with CONFIG_USB_GPIO_VBUS=y and many others without any > success. > > I have verified the HW is working fine as 'host' and 'device' with latest > Olimex image with Debian Jessie and kermel 3.4.103. > > Some time ago I have also tested it to work with Armbian 5.07 and kernel > 3.4.111 (with modified fex file). > > I have also verify that device tree seams to be o.k. according to posts in > this forum. > > > In the boot messages USB OTG is recognized by sunxi musb driver but > usb0-vbus is finally disabled. > > There are few confusing messages as well: > > > [ 3.254996] reg-fixed-voltage usb0-vbus: could not find pctldev for node > /soc@01c00000/pinctrl@01c20800 usb0_vbus_pin@0, deferring probe > [ 3.255033] reg-fixed-voltage usb1-vbus: could not find pctldev for node > /soc@01c00000/pinctrl@01c20800/usb1_vbus_pin@0, deferring probe > [ 3.255067] reg-fixed-voltage usb2-vbus: could not find pctldev for node > /soc@01c00000/pinctrl@01c20800/usb2_vbus_pin@0, deferring probe > [ 3.257948] usbcore: registered new interface driver usbfs > [ 3.258023] usbcore: registered new interface driver hub > [ 3.258127] usbcore: registered new device driver usb > [ 3.369469] sun4i-usb-phy 1c13400.phy: could not find pctldev for node > /soc@01c00000/pinctrl@01c20800/usb0_id_detect_pin@0, deferring probe > > > ... > > > [ 3.846532] usb_phy_generic.0.auto supply vcc not found, using dummy > regulator > [ 3.847087] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver > [ 3.847109] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned > bus number 5 > [ 3.847554] usb usb5: New USB device found, idVendor=1d6b, idProduct=0002 > [ 3.847569] usb usb5: New USB device strings: Mfr=3, Product=2, > SerialNumber=1 > [ 3.847579] usb usb5: Product: MUSB HDRC host driver > [ 3.847588] usb usb5: Manufacturer: Linux 4.5.2-sunxi musb-hcd > [ 3.847598] usb usb5: SerialNumber: musb-hdrc.1.auto > [ 3.848439] hub 5-0:1.0: USB hub found > [ 3.848513] hub 5-0:1.0: 1 port detected > [ 3.877070] usb0-vbus: disabling > > > I have also verified usb0_id_det and usb0_vbus_det wotk fine as inputs (cat > /sys/kernel/debug/gpio) > > GPIOs 0-287, platform/1c20800.pinctrl, 1c20800.pinctrl: > gpio-50 ( |sysfs ) in hi > gpio-67 ( |ahci-5v ) out hi > gpio-81 ( |usb0-vbus ) out lo > gpio-87 ( |sysfs ) out lo > gpio-88 ( |sysfs ) out hi > gpio-225 ( |cd ) in hi IRQ > gpio-226 ( |? ) out hi > gpio-227 ( |usb2-vbus ) out hi > gpio-228 ( |usb0_id_det ) in hi IRQ > gpio-229 ( |usb0_vbus_det ) in lo IRQ > gpio-230 ( |usb1-vbus ) out hi > but usb0-vbus is always low and the USB OTG behaves like a dead. > > The only reaction was when USB OTG with dr_mode = 'host' was connected (by > error) to other board USB Host. > > In this situation USB OTG enumeration try was registered at both sides but > finished with error (probably because of support lack). > > > Please, help me to find a solution. > > > Best regards > > Chris > > > -- > You received this message because you are subscribed to the Google Groups > "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to linux-sunxi+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
