As I described earlier commit that solves my USB problem is 3d9545c and it was merged in kernel 3.5
So in this terminology: Old kernels: <3.5 Modern kernels: >=3.5 From: Zoran Stojsavljevic [mailto:[email protected]] Sent: Tuesday, October 10, 2017 8:03 PM To: Аладышев Константин Cc: coreboot Subject: Re: [coreboot] USB problem with Haswell+LynxPointLP motherboards > Last time I was solving a problem of OS suspend-resume sequence with modern > kernels and now it is about working with old kernels Hello Kostja, What is modern kernel, and what is old kernel? Any version/revision examples (you are using), so we can get the/some idea? Thank you, Zoran _______ On Tue, Oct 10, 2017 at 10:14 AM, Аладышев Константин <[email protected]> wrote: Hello Zoran! Yes, I'm working with the same board, but the problem is different. Last time I was solving a problem of OS suspend-resume sequence with modern kernels and now it is about working with old kernels From: Zoran Stojsavljevic [mailto:[email protected]] Sent: Tuesday, October 10, 2017 9:48 AM To: Аладышев Константин Cc: coreboot Subject: Re: [coreboot] USB problem with Haswell+LynxPointLP motherboards Hello Kostja, We already had this discussion a while ago, didn't we? https://mail.coreboot.org/pipermail/coreboot/2016-December/082772.html (BTW, ATOM BYT has exactly the same problem) Zoran On Mon, Oct 9, 2017 at 11:58 AM, Аладышев Константин <[email protected]> wrote: I try to port coreboot on boards with Haswell CPU and Lynxpoint LP chipset (IBASE IB908AF-4650 board, DFI HU968) and I've encountered a strange problem. USB devices stop working shortly after OS boot (or after USB device replug in OS) with flooding system with messages: hub 1-1:1.0: cannot reset port 5 (err = -110) hub 1-1:1.0: cannot reset port 5 (err = -110) hub 1-1:1.0: Cannot enable port 5. Maybe the USB cable is bad? hub 1-1:1.0: cannot disable port 5 (err = -110) hub 1-1:1.0: connect-debounce failed, port 5 disabled hub 1-1:1.0: unable to enumerate USB device on port 5 hub 1-1:1.0: cannot disable port 5 (err = -110) hub 1-1:1.0: hub_port_status failed (err = -110) hub 1-1:1.0: hub_port_status failed (err = -110) Through some digging I've found out that this problem persist on kernels <3.5. I've investigated this problem more closely and come down to the fact that the kernel commit that solves this problem is: 3d9545c EHCI: maintain the ehci->command value properly https://github.com/torvalds/linux/commit/3d9545cc375d117554a9b35dfddadf9189c 62775?diff=split And now I'm kinda stuck. The effect of this commit doesn't seem to interface with bios for me. So how does original IBASE/DFI bios can overcome code error before this commit? What can be the source of my problem? What should I investigate more precise based on result that I've got? -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot
