src-test/sys/dev/uart/uart_cpu_fdt.c, branch main

uart: allow UART_DEV_DBGPORT for fdt consoles

2020-12-02T21:01:52Z

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 Submitted by: stevek (original patch, D5986) Reviewed by: andrew, mhorne Differential Revision: https://reviews.freebsd.org/D27422

sys/dev: further adoption of SPDX licensing ID tags.

2017-11-27T14:52:40Z

Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.

Allow setting access-width for UART registers.

2017-02-27T20:08:42Z

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

Remove now unused functions from the FDT uart cpu driver.

2016-07-24T08:52:49Z

Obtained from: ABT Systems Ltd MFC after: 1 month X-MFC with: r303100 Sponsored by: The FreeBSD Foundation

We will be switching to a new arm64 uart cpu driver that handles both FDT

2016-07-20T17:19:47Z

and ACPI. As such pull out what will be the common parts of the FDT cpu detection to a new function that can be shared between them. Reviewed by: manu Obtained from: ABT Systems Ltd MFC after: 1 month Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D7262

Stop including machine/fdt.h from the fdt uart code, it's unneeded.

2016-04-26T13:16:45Z

Do not include fdt.h on RISC-V.

2016-04-26T12:31:23Z

This code no longer references fdtbus_bs_tag, no need for a special extern

2016-02-23T03:01:46Z

declaration of it for aarch64.

Now that we have OF_decode_addr(), with proper MD implementations, to obtain

2016-02-23T02:57:45Z

the bus space tag and handle for a uart console, use the values returned by that routine to set the global uart_bus_space_mem, instead of assuming that there will be a global variable named fdtbus_bs_tag to set it from. Also, use OF_getencprop() instead calling fdt32_to_cpu() separately.

Allow callers of OF_decode_addr to get the size of the found mapping. This

2016-02-16T15:18:12Z

will allow for code that uses the old fdt_get_range and fdt_regsize functions to find a range, map it, access, then unmap to replace this, up to and including the map, with a call to OF_decode_addr. As this function should only be used in the early boot code the unmap is mostly do document we no longer need the mapping as it's a no-op, at least on arm. Reviewed by: jhibbits Sponsored by: ABT Systems Ltd Differential Revision: https://reviews.freebsd.org/D5258