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Date:      Sun, 02 May 2021 21:27:57 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 255556] Add Apollo Lake SIO/LPSS UARTs PCI IDs
Message-ID:  <bug-255556-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D255556

            Bug ID: 255556
           Summary: Add Apollo Lake SIO/LPSS UARTs PCI IDs
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: jlduran@gmail.com

Created attachment 224620
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D224620&action=
=3Dedit
Add PCI IDs for Intel Apollo Lake Series HSUARTs.

Add PCI IDs for Intel Apollo Lake Series HSUARTs:

    # pciconf -ll
    drv   selector      class    rev  hdr  vendor device subven subdev
    uart0@pci0:0:24:0:  118000   0b   00   8086   5abc   8086   7270
    uart1@pci0:0:24:1:  118000   0b   00   8086   5abe   8086   7270
    uart2@pci0:0:24:2:  118000   0b   00   8086   5ac0   8086   7270
    uart3@pci0:0:24:3:  118000   0b   00   8086   5aee   8086   7270

NB (Intel Document Number 336256-004US):
1. The E3900 and A3900 Series Processors support four LPSS_UART ports,
   while the N- and J- Series Processors support only LPSS_UART [2:1]
   ports.
2. The LPSS_UART1 port is dedicated for discrete Global Navigation
   Satellite System (GNSS).  This port can be used for generic UART
   functionality if GNSS is not used.
3. The LPSS_UART2 port is dedicated for host OS debug.
4. The LPSS_UART0 and LPSS_UART3 ports are for generic UART functionality.
5. Only UART [1:0] ports support DMA.

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