Date: Thu, 11 Apr 2024 22:05:51 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 278316] Intel Atom S1200 (Centerton) serial UART not working Message-ID: <bug-278316-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278316 Bug ID: 278316 Summary: Intel Atom S1200 (Centerton) serial UART not working Product: Base System Version: 14.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: henrichhartzer@tuta.io I'm unable to use "COM3" on a Intel Atom S1260 server, which is a HSUART. It has no device entry in uart_bus_pci.c. Unfortunately, while I'm able to get= the device to show up if I add it, I can't communicate with it using cu. I'm ab= le to get two different USB serial devices to talk using the same null modem c= able and the same commands (minus the devices), so I don't suspect it's the devi= ce. I *assume* this applies to CURRENT as well. To test, I added `{ 0x8086, 0x0c5f, 0xffff, 0, "Atom Processor S1200 UART", 0x10},` to uart_bus_pci.c. The driver is loaded with this change, however it doesn't seem to function. ```uart2@pci0:0:20:0: class=3D0x070002 rev=3D0x02 hdr=3D0x00 vendor=3D= 0x8086 device=3D0x0c5f subvendor=3D0x15d9 subdevice=3D0x0651 vendor =3D 'Intel Corporation' device =3D 'Atom Processor S1200 UART' class =3D simple comms subclass =3D UART ``` If I use this change, like some other Intel serial devices, it does not load the module and says "no driver attached". ```{ 0x8086, 0x0c5f, 0xffff, 0, "Atom Processor S1200 UART", 0x10, 24 * DEFAULT_RCLK, 2 }, ``` Not sure how to proceed with this. Would appreciate any pointers. Related: https://forums.freebsd.org/threads/intel-pci-serial-port-no-driver-attached= .30252/ https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207910 https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/ato= m-processor-s1200-datasheet-vol-1.pdf https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/ato= m-processor-s1200-datasheet-vol-2.pdf --=20 You are receiving this mail because: You are the assignee for the bug.=
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