Hello,
I have stm32mp157c,
my own board and usb type-c for rndis.
I saw the topic https://community.st.com/s/question/0D53W00001Qeg8OSAR/usb-ethernet-gadget-stops-working-after-replugging-cable
But it wasn't helpful for me.
This is the error I get when I reconnect cable:
dwc2 49000000.usb-otg: new device is high-speed
dwc2 49000000.usb-otg: dwc2_hsotg_enqueue_setup: failed queue (-11)
I was thinking about creating my own VBUS int line, but If I disconnect cable and call stm32_usbotg_eth_config.sh stop
I get the error:
root@myir:~# stm32_usbotg_eth_config.sh stop
Stop usb gadget
[ 46.169190] dwc2 49000000.usb-otg: dwc2_hsotg_ep_enable: No suitable fifo found
[ 46.175052] ------------[ cut here ]------------
[ 46.179674] WARNING: CPU: 1 PID: 1058 at kernel/dma/mapping.c:335 dma_free_attrs+0xc4/0xc8
[ 46.187912] Modules linked in: brcmfmac(E) cfg80211(E) brcmutil(E) hci_uart(E) btbcm(E) spi_stm32(E) sch_fq_codel(E) ipv6(E) nf_defrag_ipv6(E)
[ 46.200701] CPU: 1 PID: 1058 Comm: ifconfig Tainted: G E 5.4.31 #1
[ 46.208171] Hardware name: STM32 (Device Tree Support)
[ 46.213331] [<c01124dc>] (unwind_backtrace) from [<c010d784>] (show_stack+0x10/0x14)
[ 46.221056] [<c010d784>] (show_stack) from [<c0bf2854>] (dump_stack+0xb0/0xc4)
[ 46.228269] [<c0bf2854>] (dump_stack) from [<c0125b24>] (__warn+0xd0/0xf8)
[ 46.235138] [<c0125b24>] (__warn) from [<c0125ecc>] (warn_slowpath_fmt+0x64/0xc4)
[ 46.242614] [<c0125ecc>] (warn_slowpath_fmt) from [<c0196f88>] (dma_free_attrs+0xc4/0xc8)
[ 46.250790] [<c0196f88>] (dma_free_attrs) from [<c01971a4>] (dmam_free_coherent+0x38/0x9c)
[ 46.259050] [<c01971a4>] (dmam_free_coherent) from [<c07f6c44>] (dwc2_hsotg_ep_enable+0x5e4/0x674)
[ 46.268001] [<c07f6c44>] (dwc2_hsotg_ep_enable) from [<c084e738>] (usb_ep_enable+0x38/0x110)
[ 46.276431] [<c084e738>] (usb_ep_enable) from [<c08613f0>] (eth_stop+0x9c/0xa8)
[ 46.283737] [<c08613f0>] (eth_stop) from [<c0a48fb0>] (__dev_close_many+0xa4/0x124)
[ 46.291390] [<c0a48fb0>] (__dev_close_many) from [<c0a55be4>] (__dev_change_flags+0xb8/0x1d4)
[ 46.299906] [<c0a55be4>] (__dev_change_flags) from [<c0a55d18>] (dev_change_flags+0x18/0x48)
[ 46.308342] [<c0a55d18>] (dev_change_flags) from [<c0b0a658>] (devinet_ioctl+0x5e0/0x718)
[ 46.316512] [<c0b0a658>] (devinet_ioctl) from [<c0b0deb4>] (inet_ioctl+0x214/0x38c)
[ 46.324164] [<c0b0deb4>] (inet_ioctl) from [<c0a2d654>] (sock_ioctl+0x544/0x688)
[ 46.331554] [<c0a2d654>] (sock_ioctl) from [<c02d8598>] (do_vfs_ioctl+0x404/0x7c8)
[ 46.339119] [<c02d8598>] (do_vfs_ioctl) from [<c02d8990>] (ksys_ioctl+0x34/0x60)
[ 46.346505] [<c02d8990>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
[ 46.354146] Exception stack(0xd1347fa8 to 0xd1347ff0)
[ 46.359195] 7fa0: 0006e374 bef04d5c 00000003 00008914 bef04b88 0006e374
[ 46.367366] 7fc0: 0006e374 bef04d5c bef04d5c 00000036 0006e544 00000000 0006e364 00000003
[ 46.375534] 7fe0: 0008e1cc bef04b1c 0002c98b 410c6058
[ 46.380574] ---[ end trace c3db4fda114c650a ]---
root@myir:~#
But If I call the stop command while usb connected, It stops well, so I can disconnect cable, call start command and plug cable then It works fine.
This is how my device tree look like:
/*otg*/
&usbotg_hs {
compatible = "st,stm32mp15-hsotg", "snps,dwc2";
phys = <&usbphyc_port1 0>;
phy-names = "usb2-phy";
dr_mode = "peripheral";
status = "okay";
};
The only reason I need the usb is to use rndis, so I don't want to buy stusb1600.
Would be great If you could help me,
Thank you,
Anton
