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7 commits

Author SHA1 Message Date
Matt Macy
381388b9c4 add snps IP uart support / genaralize UART 
This is an amalgam of a patch by Doug Ambrisko to
generalize uart_acpi_find_device, imp moving the
ACPI table to uart_dev_ns8250.c and advice by jhb
to work around a bug in the EPYC 3151 BIOS
(the BIOS incorrectly marks the serial ports as
disabled)

Reviewed by: imp
MFC after: 8 weeks
Differential Revision: https://reviews.freebsd.org/D16432
 2018-08-19 21:10:21 +00:00
Andrew Turner
104518ad6d Check all entries in the ACPI uart compat table and not just the first. 
Sponsored by:	DARPA, AFRL
 2018-02-26 08:45:38 +00:00
Andrew Turner
fb006e46e7 Set the io width when using an ACPI uart. Previously it would only ever be 
set when finding the uart from the device tree.

Sponsored by:	DARPA, AFRL
 2017-12-08 10:05:23 +00:00
Ruslan Bukin
c214a270f5 Allow setting access-width for UART registers. 
This is required for FDT's standard "reg-io-width" property
(similar to "reg-shift" property) found in many DTS files.

This fixes operation on Altera Arria 10 SOC Development Kit,
where standard ns8250 uart allows 4-byte access only.

Reviewed by:	kan, marcel
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D9785
 2017-02-27 20:08:42 +00:00
Andrew Turner
ef022bb1de Include the missing accommon.h from the ACPI uart code. 
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
 2016-11-21 19:38:57 +00:00
Andrew Turner
eba1a249df Add support to find the arm64 serial using the ACPI tables. This uses the 
Serial Port Console Redirection Table to find the device to use.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
 2016-11-21 19:26:58 +00:00
Andrew Turner
0812ab3141 Add an arm64 specific uart cpu driver. As arm64 may use ACPI to find the 
uart we need to handle both it and FDT, and as such we need to have an
architecture specific driver.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7796
 2016-11-21 11:27:14 +00:00