[Bug 255556] Add Apollo Lake SIO/LPSS UARTs PCI IDs
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Mon May 3 11:39:29 UTC 2021
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255556
--- Comment #2 from commit-hook at FreeBSD.org ---
A commit in branch main references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=8f1562430fbb83f6cedff6450e1aa1b593e3d7e7
commit 8f1562430fbb83f6cedff6450e1aa1b593e3d7e7
Author: Jose Luis Duran <jlduran at gmail.com>
AuthorDate: 2021-05-02 21:20:25 +0000
Commit: Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-05-03 11:38:52 +0000
Add Apollo Lake SIO/LPSS UARTs PCI IDs
Add PCI IDs for Intel Apollo Lake Series HSUARTs:
# pciconf -ll
drv selector class rev hdr vendor device subven subdev
uart0 at pci0:0:24:0: 118000 0b 00 8086 5abc 8086 7270
uart1 at pci0:0:24:1: 118000 0b 00 8086 5abe 8086 7270
uart2 at pci0:0:24:2: 118000 0b 00 8086 5ac0 8086 7270
uart3 at 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.
PR: 255556
Submitted by: Jose Luis Duran <jlduran at gmail.com>
MFC after: 1 week
sys/dev/uart/uart_bus_pci.c | 8 ++++++++
1 file changed, 8 insertions(+)
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