src/sys/dev/uart/uart_subr.c, branch releng/10.2

MFC r279723, r279724:

2015-05-23T20:54:25Z

Define new linker set, UART_FDT_CLASS_AND_DEVICE, for registering full (class and device) FDT UART. Define second one, UART_FDT_CLASS, for UART class only. Move the uart_class definitions and fdt compat data into the individual uart implementations, and export them using the new linker-set mechanism.

Teach UART to attach Exynos/s3/s5 class driver.

2013-06-29T23:48:08Z

Submitted by: Ruslan Bukin Reviewed by: gonzo

Build uart_dev_lpc.c on arm only. This fixes pc98 build.

2013-04-22T13:02:41Z

Merging of projects/armv6, part 8

2012-08-15T05:37:10Z

r235162: Initial LPC32x0 support. Includes DTS file for Embedded Artists EA3250 board. Peripherals currently supported: - Serial ports - Interrupt controller - Timers - Ethernet - USB host - Framebuffer (in conjunction with SSD1289 LCD controller) - RTC - SPI - GPIO Submitted by: Jakub Wojciech Klama

Replace __const by const in all non-contributed source code.

2011-12-13T13:32:56Z

As C1X is close to being released, there is no need to wrap around a feature that is already part of C90. Most of these files already use `const' in different placed as well.

Fix typos.

2010-11-09T10:59:09Z

PR: bin/148894 Submitted by: olgeni

Don't expose the uart_ops structure directly, but instead have

2007-04-02T22:00:22Z

it obtained through the uart_class structure. This allows us to declare the uart_class structure as weak and as such allows us to reference it even when it's not compiled-in. It also allows is to get the uart_ops structure by name, which makes it possible to implement the dt tag handling in uart_getenv(). The side-effect of all this is that we're using the uart_class structure more consistently which means that we now also have access to the size of the bus space block needed by the hardware when we map the bus space, eliminating any hardcoding.

Make uart_getenv() not be ns8250 dependent. This will allow, in the future,

2005-12-12T21:00:58Z

compilation of kernels without ns8250 support but using the uart framework. These kernels will be for machines where size matters more, so including code that can never be executed is undesriable...

Start each of the license/copyright comments with /*-, minor shuffle of lines

2005-01-06T01:43:34Z

Make sure the baudrate specified with the BR tag is somewhat sane.

2004-11-14T21:38:22Z

A baudrate we consider insane is silently replaced with 0. When the baudrate is 0, we will not try to program the hardware. Instead we leave the communication speed unaltered, maximizing the chance to have a working console. Obviously this means we allow specifying a 0 baudrate for exactly that purpose.