Hi,
On 06-08-15 10:22, Olliver Schinagl wrote:
Hey Hans,
I've tried getting your musb stuff working on a cubietruck, but i don't seem to
see this patch on your linux-sunxi/sunxi-wip branch on github? Is your github
branch fully functional at the moment?
What I have done so far, is build the kernel using sunxi_defconfig and enabled USB_MUSB_SUNXI with its dependancies (musb isn't
enabled there by default): USB_SUPPORT [=y] && USB_MUSB_HDRC [=y] && ARCH_SUNXI [=y] && NOP_USB_XCEIV
[=y] && PHY_SUN4I_USB [=y] && EXTCON [=y] && GENERIC_PHY [=y] Selects: SUNXI_SRAM [=y]
I changed the dts from dr_mode='otg' to dr_mode='host', a) we only need host
mode anyway (the id pin isn't properly connected)
If you change the dr_mode to host then you _must_ also remove any id_det and
vbus_det
gpio settings from the usb_phy node in the dts, as the sun4i phy code detects
host vs otg mode by checking for the presence of these.
> and b) I got an error about an known dr_mode before and this was the quick
and easy way.
Dmesg produces the following related to musb.
[ 1.691062] usb_phy_generic.0.auto supply vcc not found, using dummy
regulator
[ 1.691445] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine,
bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 1.691453] musb-hdrc: MHDRC RTL version 0.0
[ 1.691467] musb-hdrc: 11/11 max ep, 5184/8192 memory
[ 1.691543] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 1.691553] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus
number 5
[ 1.692470] hub 5-0:1.0: USB hub found
[ 1.692529] hub 5-0:1.0: 1 port detected
[ 1.699956] sunxi-rtc 1c20d00.rtc: setting system clock to 2015-08-06
07:59:08 UTC (1438847948)
[ 1.704733] usb0-vbus: disabling
[ 1.765695] ldo4: disabling
[ 1.808351] ldo3: disabling
[ 1.848769] vcc5v0: disabling
[ 1.848774] vcc3v0: disabling
The usb_phy_generic missing shouldn't be too bad? But the usb0-vbus being
disabled obviously might be related to the musb port not working?
Correct.
For starters I would try the dts changes I suggested above.
Regards,
Hans
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