Date: Sun, 14 Feb 2021 05:42:36 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 253494] the uart driver does not recognize HSUARTs on a FitPC Fitlet2 computer Message-ID: <bug-253494-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253494 Bug ID: 253494 Summary: the uart driver does not recognize HSUARTs on a FitPC Fitlet2 computer Product: Base System Version: 12.2-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: bsd@bobdbob.com Overview: A Fitlet2 computer has an onboard serial port which is a PCI attached HSUAR= T.=20 The uart driver does not recognize the port, no /dev/cua* is created.=20=20 To Reproduce: Attempt to use a serial port on a fitlet2 computer, or perhaps more general= ly, a Celeron N3350/Pentium N4200/Atom E3900. Note that there is no /dev/cua* = for the serial port. The hardware appears in pciconf as: none2@pci0:0:24:2: class=3D0x118000 card=3D0x72708086 chip=3D0x5ac0808= 6 rev=3D0x0b hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'Celeron N3350/Pentium N4200/Atom E3900 Series HSUART Controller' class =3D dasp I cargo-culted the fix in PR 207910, and added the PCI id to the list in src/sys/dev/uart/uart_bus_pci.c. Adding the following at line 168: { 0x8086, 0x5abc, 0xffff, 0, "Celeron N3350/Pentium N4200/Atom E3900 Series HSUART#0", 0x10, 24 * DEFAULT_RCLK, 2 }, { 0x8086, 0x5abe, 0xffff, 0, "Celeron N3350/Pentium N4200/Atom E3900 Series HSUART#1", 0x10, 24 * DEFAULT_RCLK, 2 }, { 0x8086, 0x5ac0, 0xffff, 0, "Celeron N3350/Pentium N4200/Atom E3900 Series HSUART#2", 0x10, 24 * DEFAULT_RCLK, 2 }, { 0x8086, 0x5aee, 0xffff, 0, "Celeron N3350/Pentium N4200/Atom E3900 Series HSUART#3", 0x10, 24 * DEFAULT_RCLK, 2 }, I can only verify that HSUART#2 works correctly, since the Fitlet hardware = has only a single exposed RS-232 port (tested by connecting TX to RX, and obser= ving the echo using kermit.). There is a second physical port on an internal connector which is more difficult to get to. --=20 You are receiving this mail because: You are the assignee for the bug.=
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