On 27 July 2015 21:48:40 CEST, Stephen Warren swarren@wwwdotorg.org wrote:
On 07/20/2015 04:35 PM, Marcel Ziswiler wrote:
From: Marcel Ziswiler marcel.ziswiler@toradex.com
Unfortunately currently both Apalis T30 as well as Colibri T30 crash upon starting USB host support. This is due to the following patch
not
having taken into account that our T30 device trees were defaulting
to
peripheral only mode instead of otg:
commit ddb9a502d18008e845d5a8fa03ec48630fa77fb7 dm: usb: tegra: Move most of init/uninit into a function
diff --git a/arch/arm/dts/tegra30-colibri.dts
b/arch/arm/dts/tegra30-colibri.dts
/* EHCI instance 0: USB1_DP/N -> USBC_P/N */ usb@7d000000 { status = "okay";
dr_mode = "peripheral";
dr_mode = "otg";Is there SW control over driving VBUS for this port? If not, I don't think switching to otg is correct/possible.
Yes, on Apalis T30 it is software controlled while on Colibri T30 it is hardware controlled (e.g. resp. cable decides). So this actually does work.
It seems better to fix the crash in the code?
I kind of agree but this is outside the scope of this patch which just changes this to what everybody else does which actually works.