Hello Lokesh, could you please process this patch series? USB serial console on Nokia N900 is really useful for debugging and currently in U-Boot master code is broken. Pavel has already reviewed patches and also CI tests passed.
On Sunday 29 November 2020 17:46:05 Pali Rohár wrote: > This patch series fix usbtty code (serial console via USB peripheral > mode), fix underlying musb peripheral code, fix compilation of > CONFIG_USB_DEVICE (used by usbtty), remove unused Nokia RX-51 code to > decrease size of U-Boot binary and finally enable usbtty serial console > for Nokia RX-51. > > With this patch series debugging of Nokia RX-51 can be done also via USB > serial console. > > On computer this serial console is accessible via /dev/ttyACM0 device. > > With current implementation there is an issue in musb driver that it > loose receiving bytes from USB bus when too many a characters are send > over USB tty from computer. Typing on keyboard to kermit terminal > connected to /dev/ttyACM0 is working fine. But pasting more more bytes > to terminal cause data lost on receiving side. I do not know where is > the issue or how to fix it (it looks like that data are lost at low > level when reading them from msub FIFO hardware) but typing on keyboard > is working fine. This is rather issue for sending files via x/y/z-modem > or kermit protocol. Currently U-Boot is not able to receive any file > via usbtty with musb driver due to this issue. > > Pali Rohár (13): > serial: usbtty: Fix puts function > usb: musb: Fix compilation of gadget code > usb: musb: Always clear the data toggle bit when configuring ep > usb: musb: Fix configuring FIFO for endpoints > usb: musb: Read value of PERI_RXCSR to 16bit variable > usb: musb: Fix transmission of bigger buffers > usb: gadget: Do not export usbd_device_* arrays > usb: gadget: Use dbg_ep0() macro instead of serial_printf() > arm: omap3: Compile lowlevel_init() function only when it is used > arm: omap3: Compile s_init() function only when it is used > Nokia RX-51: Remove function set_muxconf_regs() > Nokia RX-51: Move content of rx51.h to rx51.c > Nokia RX-51: Enable usbtty serial console by default > > Makefile | 1 + > arch/arm/mach-omap2/omap3/board.c | 3 + > arch/arm/mach-omap2/omap3/lowlevel_init.S | 6 +- > board/nokia/rx51/rx51.c | 28 +- > board/nokia/rx51/rx51.h | 377 ---------------------- > configs/nokia_rx51_defconfig | 6 +- > doc/README.nokia_rx51 | 15 +- > drivers/serial/usbtty.c | 4 +- > drivers/usb/gadget/core.c | 38 +-- > drivers/usb/gadget/ep0.c | 47 ++- > drivers/usb/musb/musb_core.c | 10 +- > drivers/usb/musb/musb_udc.c | 19 +- > include/configs/nokia_rx51.h | 16 +- > include/usbdevice.h | 15 - > 14 files changed, 92 insertions(+), 493 deletions(-) > delete mode 100644 board/nokia/rx51/rx51.h > > -- > 2.20.1 >
