Hi Daniel, > From: Daniel Drake [mailto:dr...@endlessm.com] > Sent: Tuesday, June 24, 2014 5:09 PM > > On Tue, Jun 24, 2014 at 1:54 PM, Kamil Debski <k.deb...@samsung.com> > wrote: > > The Exynos4412 USB 2.0 PHY hardware differs from the description > > provided in the documentation. Some register bits have different > > function. This patch fixes the defines of register bits and changes > > the way how phys are powered on and off. > > I guess this replaces the patch titled "drivers: phy: exynos4x12-phy: > fix HSIC1 power on/off sequence"
Yes, indeed it replaces this patch. I did some more research on how the hardware actually behaves. > > Tested on ODROID-U2. Seems to be working as well as the previous patch: Thank you very much for testing. > - Internal SMSC hub works on boot and after reboot, tested with USB > mouse > - Internal SMSC ethernet device works on boot, but disappears upon > reboot. (same as previous patch, also reproduced by Marek) By reboot I guess that you mean typing "reboot" or by using SysRq magic and not power cycling? If so, I had experienced the same symptoms. I guess that the Ethernet chip is not reset properly and fails to enumerate without power cycling (it's nRESET pin is connected to P3V3). I found that removing regulator-always-on from buck8_reg: BUCK8 in the dts file fixes this problem. Best wishes, -- Kamil Debski Samsung R&D Institute Poland -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
