As not all drivers support interrupts we don't have a means to know if
we can allow UART_INTERRUPT_DRIVEN to be enabled and thus various
Kconfig options that select UART_INTERRUPT_DRIVEN. Some drivers have a
interrupts, however not all do. So introduce a Kconfig option to let us
know what the driver actually supports.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
UART 16750 is basically a UART 16550 with a 64-bytes FIFO.
The 64-bytes FIFO can be enabled via register FCR.
Account for it in the uart_ns16550 driver whenever the
CONFIG_UART_NS16750 variable is set.
Change-Id: I2342b28a41d03c96410bbfbe57e4b5a4e335731d
Signed-off-by: Jean-Paul Etienne <fractalclone@gmail.com>
Completing the terminology change started with change 4008
by updating the Kconfig files processed to produce the
online documentation, plus header files processed by
doxygen. References to 'platform' are change to 'board'
Change-Id: Id0ed3dc1439a0ea0a4bd19d4904889cf79bec33e
Jira: ZEP-534
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Moves those kconfig options which should be declared in
SoC or board header files instead. These are the one
that are tied to SoC or board and there is no need
for them to be configurable in kconfig.
Change-Id: I243d634f1a4a11dc8dc3530d95f93371015492b7
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This implements the newly introduced APIs to manipulate line controls
for UART.
This also implements the driver command API as setting baud rate
may require setting the DLF.
Change-Id: I80634aa3fbd4a3223c46edb61417123e36f439dd
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The UART on Quark SE and D2000 supports fractional clock divider.
It is used to limit frequency error for supported baud rates.
Change-Id: I1f39a95db09f4a5a4116edc700a10e4b9ecfa2bd
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Change terminology and use SoC instead of platform. An SoC provides
features and default configurations available with an SoC. A board
implements the SoC and adds more features and IP block specific to the
board to extend the SoC functionality such as sensors and debugging
features.
Change-Id: I15e8d78a6d4ecd5cfb3bc25ced9ba77e5ea1122f
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
() Renames ns16550.c to uart_ns16550.c. This is to follow
the driver naming convention.
() Renames functions ns16550_uart_*() to uart_ns16550_*(),
following driver naming convention.
() UART ports initialization is moved into the driver itself.
All the init code in platform config files is removed.
() Adds (many) Kconfig options. These don't have to be defined
in each platform's board.h anymore.
() Renames CONFIG_NS16550_* to CONFIG_UART_NS16550_*
() Disable NS16550 for ARC as no port is defined anyway.
Change-Id: I76bbe25b9bc75eb62df81e533f84f4f63a5257b7
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Savinay Dharmappa