src/sys/dev/uart/uart_bus_scc.c, branch release/12.3.0 FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=release%2F12.3.0 2018-08-19T21:10:21Z add snps IP uart support / genaralize UART 2018-08-19T21:10:21Z Matt Macy mmacy@FreeBSD.org 2018-08-19T21:10:21Z urn:sha1:381388b9c48b07b08199b07b7657d46e8fcb59b0 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 sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27T14:52:40Z Pedro F. Giffuni pfg@FreeBSD.org 2017-11-27T14:52:40Z urn:sha1:718cf2ccb9956613756ab15d7a0e28f2c8e91cab 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 Ruslan Bukin br@FreeBSD.org 2017-02-27T20:08:42Z urn:sha1:c214a270f501ce3711165c0d18f55733bcc0ca93 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 Support for Freescale QUad Integrated Communications Controller. 2008-03-03T18:20:17Z Rafal Jaworowski raj@FreeBSD.org 2008-03-03T18:20:17Z urn:sha1:e1ef781113fba635a7fa4a979607261385971992 The QUICC engine is found on various Freescale parts including MPC85xx, and provides multiple generic time-division serial channel resources, which are in turn muxed/demuxed by the Serial Communications Controller (SCC). Along with core QUICC/SCC functionality a uart(4)-compliant device driver is provided which allows for serial ports over QUICC/SCC. Approved by: cognet (mentor) Obtained from: Juniper MFp4: e500 Add scc(4), a driver for serial communications controllers. These 2006-03-30T18:33:22Z Marcel Moolenaar marcel@FreeBSD.org 2006-03-30T18:33:22Z urn:sha1:6174e6ed1243dfbf727e3a25531b93c32708709f controllers typically have multiple channels and support a number of serial communications protocols. The scc(4) driver is itself an umbrella driver that delegates the control over each channel and mode to a subordinate driver (like uart(4)). The scc(4) driver supports the Siemens SAB 82532 and the Zilog Z8530 and replaces puc(4) for these devices.