On Tuesday, April 07, 2015 at 08:18:03 AM, Ramneek Mehresh wrote: [...]
> > Hi, > > > > Is this similar hardware bug to the one which MX6 PCIe is suffering ? On > > MX6, the bug is that you cannot reset the PCIe and PCIe PHY from > > software, which means that if you start PCIe in U-Boot, you cannot > > reliably use it in Linux. Furthermore, if you reset the MX6 via WDT, you > > cannot start PCIe reliably in Linux even if PCIe is not used in U-Boot > > at all. > > > > Is this the same type of hardware screwup where the design team didn't > > think reset was necessary? > > I have raised request for this feature in up-coming socs, and they have > agreed to provide phy shut-down in future revs. However, this support is > not available in current revs for which the code is sent. What do you > suggest we should do for current socs? Hi, I don't know, but doesn't leaving the USB running cause trouble to Linux? I think you should at least document the reasoning why the USB stop is not implemented for this broken hardware. Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot