Greetings, I've been trying to do some feasibility (performance / features) testing of DFU to see if it might work on a project I'm involved with. Due to architecture similarities I'm trying to do this using a custom-built u-boot from Denx mainline on a OMAP4460 ES1.1 Pandaboard. But I've been having problems.
I'm not sure I have the right set of CONFIG options. The DFU-relevant ones (I think) are: #define CONFIG_CMD_DFU #define CONFIG_DFU_FUNCTION #define CONFIG_DFU_MMC #define CONFIG_USBDOWNLOAD_GADGET #define CONFIG_USB_GADGET #define CONFIG_USB_GADGET_OMAP #define CONFIG_USB_GADGET_VBUS_DRAW 500 #define CONFIG_G_DNL_MANUFACTURER "TI" // just #define CONFIG_G_DNL_VENDOR_NUM 0x0451 // for #define CONFIG_G_DNL_PRODUCT_NUM 0xd022 // evaluation #define CONFIG_DFU_ALT \ "ipl mmc 100 100;" \ "u-boot mmc 200 200\0" \ … #define CONFIG_EXTRA_ENV_SETTINGS \ "dfu_alt_info=" CONFIG_DFU_ALT \ … With this I get unresolved symbols at link time: /home/cashwell/eval/u-boot/common/cmd_dfu.c:64: undefined reference to `usb_gadget_handle_interrupts' drivers/usb/gadget/libusb_gadget.o: In function `usb_composite_unregister': /home/cashwell/eval/u-boot/drivers/usb/gadget/composite.c:1081: undefined reference to `usb_gadget_unregister_driver' drivers/usb/gadget/libusb_gadget.o: In function `usb_composite_register': /home/cashwell/eval/u-boot/drivers/usb/gadget/composite.c:1067: undefined reference to `usb_gadget_register_driver' The only possibilities I can find that might resolve those missing functions are in the files: ./drivers/usb/musb-new/musb_uboot.c ./drivers/usb/gadget/s3c_udc_otg.c ./drivers/usb/gadget/pxa25x_udc.c ./drivers/usb/gadget/mv_udc.c But I'm confused by the relationship between musb, musb-new, and the UDC gadget drivers. I also can't find UDC code for OMAP4 that would work for DFU. Am I trying to do something that's impossible on OMAP4 using its built-in OTG controller and PHY or am I just doing something dumb? Has anyone used u-boot DFU on a Pandaboard? Sorry for the n00b question but I've been banging my head on this for several days and I just can't sort out which part is the horse and which the cart. Best regards, -Michael Cashwell _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot