sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

uart: uart_cpu_arm64: fix the build without FDT

clang 14 doesn't properly determine that we're unconditionally returning
if we have ACPI but not FDT. Push FDT setup entirely into a new
function, mu

uart: uart_cpu_arm64: fix the build without FDT

clang 14 doesn't properly determine that we're unconditionally returning
if we have ACPI but not FDT. Push FDT setup entirely into a new
function, much like we currently do with ACPI, and just return ENXIO if
that doesn't succeed.

Reviewed by: andrew, manu (earlier version)
Differential Revision: https://reviews.freebsd.org/D36788

show more ...

Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

S

Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

Sponsored by: The FreeBSD Foundation

show more ...

uart: allow UART_DEV_DBGPORT for fdt consoles

Allow fdt devices to be used as debug ports for gdb(4).

A debug console can be specified with the "freebsd,debug-path" property
in the device tree's /c

uart: allow UART_DEV_DBGPORT for fdt consoles

Allow fdt devices to be used as debug ports for gdb(4).

A debug console can be specified with the "freebsd,debug-path" property
in the device tree's /chosen node, or using the environment variable
hw.fdt.dbgport.

The device should be specified by its name in the device tree, for
example hw.fdt.dbgport="serial2".

PR: 251053
Submitted by: Dmitry Salychev <[email protected]>
Submitted by: stevek (original patch, D5986)
Reviewed by: andrew, mhorne
Differential Revision: https://reviews.freebsd.org/D27422

show more ...

Use ACPI SPCR on x86

This takes the SPCR code currently in uart_cpu_arm64.c, moves it into
a new uart_cpu_acpi.c (with some associated refactoring), and uses it
from both arm64 and x86.

An SPCR ser

Use ACPI SPCR on x86

This takes the SPCR code currently in uart_cpu_arm64.c, moves it into
a new uart_cpu_acpi.c (with some associated refactoring), and uses it
from both arm64 and x86.

An SPCR serial port address AccessWidth field value of 0 ("reserved")
is now treated as 1 ("byte access") in order to work around a buggy
SPCR table on Amazon EC2 i3.metal instances.

Reviewed by: manu, Greg V
MFC after: 3 days
Sponsored by: https://www.patreon.com/cperciva
Differential Revision: https://reviews.freebsd.org/D20357

show more ...

ACPI SPCR: handle BaudRate=0

From https://github.com/tianocore/edk2-platforms/commit/7d8dc6544c93a5f5a03c83316489ba8700946e9f

"The mcbin (and likely others) have a nonstandard uart clock. This mean

ACPI SPCR: handle BaudRate=0

From https://github.com/tianocore/edk2-platforms/commit/7d8dc6544c93a5f5a03c83316489ba8700946e9f

"The mcbin (and likely others) have a nonstandard uart clock. This means
that the earlycon programming will incorrectly set the baud rate if it is
specified. The way around this is to tell the kernel to continue using the
preprogrammed baud rate. This is done by setting the baud to 0."

Our drivers (uart_dev_ns8250) do respect zero, but SPCR would error. Let's
not error.

Submitted by: Greg V <[email protected]>
Reviewed by: mw, imp, bcran
Differential Revision: https://reviews.freebsd.org/D19914

show more ...

Add quirk for ignoring SPCR AccessWidth values on the PL011 UART

The SPCR table on the Lenovo HR330A Ampere eMAG server indicates 8-bit
access, but 32-bit access is required for the PL011 to work.

Add quirk for ignoring SPCR AccessWidth values on the PL011 UART

The SPCR table on the Lenovo HR330A Ampere eMAG server indicates 8-bit
access, but 32-bit access is required for the PL011 to work.

PL011 on SBSA platforms always supports 32-bit access (and that was
hardcoded here before my EC2 fix), let's use 32-bit access for PL011
and 32BIT interface types.

Tested by emaste on Ampere eMAG and Cavium/Marvell ThunderX2.

Submitted by: Greg V <[email protected]>
Reviewed by: andrew, imp (earlier)
Differential Revision: https://reviews.freebsd.org/D19507

show more ...

Initialize uart_bus_space_mem.

This value was being used uninitialized, resulting in predictable issues
on systems with memory-mapped UART registers.

A case could be made that memmap_bus should be

Initialize uart_bus_space_mem.

This value was being used uninitialized, resulting in predictable issues
on systems with memory-mapped UART registers.

A case could be made that memmap_bus should be declared in a header
rather than being declared in each .c file which needs to refer to it,
but that's a broader style question.

This commit unbreaks hw.uart.console="mm:..." on ARM64.

Submitted by: Greg V

show more ...

Obey SPCR AccessWidth parameter.

The "access width" value was hard-coded as 2, indicating 32-bit accesses;
instead, use the value specified in the SPCR table.

This unbreaks the console on EC2 "A1"

Obey SPCR AccessWidth parameter.

The "access width" value was hard-coded as 2, indicating 32-bit accesses;
instead, use the value specified in the SPCR table.

This unbreaks the console on EC2 "A1" family instances.

Submitted by: Greg V

show more ...

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 wor

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

show more ...

Check all entries in the ACPI uart compat table and not just the first.

Sponsored by: DARPA, AFRL

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

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

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

show more ...

Include the missing accommon.h from the ACPI uart code.

Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation

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 Fo

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

show more ...

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 Syste

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

show more ...