Hi,
BUG report 1:
About phy-rockchip-inno-usb2.c and rk3318.
Goal is to use ttyUSB0 as console in combination with agetty as long as
we don't have a working HDMI signal on a DVI monitor.
Boot with rk3318 starts normal on emmc with U-boot OK. It then loads the
kernel
and initrd on SD card. Log view on ttyS2 works.
At the end of the init process extcon0 sends 2 events sortly after each
other.
usb2 crashes if extcon0 event reports 'USB=0' and 'DCP=1'.
It looks like there's no consistant init (delay?) in the driver or hardware.
Boot only possible with busybox + initrd with no scripts that delay
event handling.
(Un)plug events are unrelayable. Getty only becomes active
if usb cable connected direct to the board(without usb hub).
With systemd only a kernel log scroll, but never able to use ttyUSB0 as
login.
mdev.conf line to catch the events:
extcon[0-9]+ root:root 666 */bin/cat /sys/class/extcon/extcon0/state
> /dev/kmsg
In extlinux.conf clk and pm must be ignored in the kernel command line
to prevent a crash.
label kernel
kernel /Image
fdt /rk3318-a95x-z2.dtb
initrd /rootfs.cpio
append console=ttyUSB0,115200n8
console=ttyS2,1500000n8
pd_ignore_unused
clk_ignore_unused
initcall_debug=1
debug
drm.debug=0xe
video=HDMI-A-1:1280x720@60
earlycon=uart8250,mmio32,0xff130000,keep
swiotlb=1
kpti=0
no_console_suspend=1
consoleblank=0
rootwait
Question:
Does anyone have a solution for usb2 or
was there previous discussion/info about this?
Why has rk3328.dtsi incomplete (see TRM) power-domains and qos? Does
that work?
Was rk3318 VOP+HDMI, gmac2phy tested in Linux mainline before?
Kind regards,
Johan
Kernel log with usb2 OK:
[ 0.959594] Run /init as init process
[ 0.959937] with arguments:
[ 0.960210] /init
[ 0.960416] with environment:
[ 0.960703] HOME=/
[ 0.960917] TERM=linux
[ 0.961562] process '/bin/busybox' started with executable stack
[ 0.967474] usb 1-1: new full-speed USB device number 2 using dwc2
[..]
[ 6.785160] USB=1
[ 6.785160] USB-HOST=0
[ 6.785160] SDP=1
[ 6.785160] CDP=0
[ 6.785160] DCP=0
[ 6.785160] SLOW-CHARGER=0
[ 6.785165] USB=1
[ 6.785165] USB-HOST=0
[ 6.785165] SDP=1
[ 6.785165] CDP=0
[ 6.785165] DCP=0
[ 6.785165] SLOW-CHARGER=0
[ 13.729625] random: crng init done
[ 31.715450] vcc_host_vbus: disabling
Kernel log with usb2 crash:
[ 0.940666] Run /init as init process
[ 0.941005] with arguments:
[ 0.941280] /init
[ 0.941490] with environment:
[ 0.941781] HOME=/
[ 0.941999] TERM=linux
[ 0.942536] process '/bin/busybox' started with executable stack
[ 0.967442] usb 1-1: new full-speed USB device number 2 using dwc2
[..]
[ 7.300792] USB=0
[ 7.300792] USB-HOST=0
[ 7.300792] SDP=0
[ 7.300792] CDP=0
[ 7.300792] DCP=1
[ 7.300792] SLOW-CHARGER=0
