On 03/07/2023 14:56, Julien Panis wrote: > On 6/30/23 21:40, Roger Quadros wrote: >> Hi, >> >> On 30/06/2023 11:30, Julien Panis wrote: >>> Hello Tony, >>> >>> On 6/30/23 09:20, Tony Lindgren wrote: >>>> Hi, >>>> >>>> * Julien Panis <jpanis@xxxxxxxxxxxx> [230629 13:10]: >>>>> This series configures usb0 dr_mode as 'peripheral' for am335x-evm, >>>>> am335x-evmsk, and am335x-icev2. This USB port is mainly used for >>>>> RNDIS and DFU. >>>> Is this a mini-B connector? Just wondering if it was originally attempted >>>> to be configured as OTG or how it ended up with a host configuration.. >>> It's a micro USB-AB connector. >>> I don't know how it ended up with a host configuration, it looks like an oversight. >>> Maybe Vignesh or Nishanth can confirm (?) >> usb0 role should be "otg". >> It is rightly so in Linux DT. am33xx.dtsi contains "otg" and all AM335x board files inherit from it. >> >> So I don't think setting it to "peripheral" in u-boot is the right thing to do. > > This series is for kernel (not for u-boot). > Why is it a problem to set usb0 as 'peripheral' in kernel for the 3 board dts ? > > With usb0 not set as 'peripheral', the 3 boards (am335x-evm, evm-sk, icev2) > do not boot with uboot 2023.04. This error is returned, with LOG_LEVEL=5: > No USB device found > USB ether init failed > initcall sequence 8ffdbba4 failed at call 808024d9 (err=-19) > ### ERROR ### Please RESET the board ### > This error is also returned with usb0 as 'otg'. This error is at u-boot correct? This will need further investigation. Does it function correctly in Linux when kept as 'otg'? -- cheers, -roger
