u-boot.git/drivers/serial/serial-uclass.c, branch v2016.01

dm: serial: Minor coding style cleanup of some comments

2015-12-11T03:42:03+00:00

Fix incorrect comment alignments.

Signed-off-by: Stefan Roese 
Cc: Simon Glass 
Reviewed-by: Bin Meng 
Acked-by: Simon Glass

dm: serial: Deal with stdout-path with an alias

2015-11-04T13:49:52+00:00

Sometimes stdout-path contains a UART alias along with speed, etc. For
example:

	stdout-path = "serial0:115200n8";

Add support for decoding this.

Signed-off-by: Simon Glass 
Signed-off-by: Michal Simek

of: clean up OF_CONTROL ifdef conditionals

2015-08-18T17:46:05+00:00

We have flipped CONFIG_SPL_DISABLE_OF_CONTROL.  We have cleansing
devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear
away the ugly logic in include/fdtdec.h:

 #ifdef CONFIG_OF_CONTROL
 # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL)
 #  define OF_CONTROL 0
 # else
 #  define OF_CONTROL 1
 # endif
 #else
 # define OF_CONTROL 0
 #endif

Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute.  It refers to
CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for
SPL.

Also, we no longer have to cancel CONFIG_OF_CONTROL in
include/config_uncmd_spl.h and scripts/Makefile.spl.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Tom Rini 
Reviewed-by: Simon Glass 
Acked-by: Linus Walleij

dm: serial: Add a REQUIRE_SERIAL_CONSOLE option for boards with no serial port

2015-08-10T13:01:28+00:00

Currently the serial code assumes that there is always at least one serial
port (and panics / crashes due to null pointer dereferences when there is
none).

This makes it impossible to use u-boot on boards where there is no (debug)
serial port, because e.g. all uart pins are muxed to another function.

This commit adds a CONFIG_REQUIRE_SERIAL_CONSOLE Kconfig option, which
defaults to y (preserving existing behavior), which can be set to n on
such boards to make them work.

This commit only implements this for CONFIG_DM_SERIAL=y configs, as allowing
running without a serial port for CONFIG_DM_SERIAL=n configs is non trivial,
and is not necessary at this moment.

Signed-off-by: Hans de Goede 
Acked-by: Simon Glass

dm: serial: Correct logic in serial_find_console_or_panic()

2015-08-05T14:42:40+00:00

In a final attempt to find a console UART this function uses the first
first available serial device. However the check for a valid device is
inverted.

This code is only executed when there is in fact no serial UART, but at
present it can fail to reach the panic_str() call in this case, and start
trying to use a non-existent UART.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

sandbox: Move CONFIG_SANDBOX_SERIAL to Kconfig

2015-06-11T01:26:55+00:00

Move this over to Kconfig and tidy up.

Signed-off-by: Simon Glass

dm: serial: Don't support CONFIG_CONS_INDEX with device tree

2015-06-11T01:26:55+00:00

This feature should be deprecated for new boards, and significantly adds
to SPL code size. Drop it. Instead, we can use stdout-path in the /chosen
node.

Signed-off-by: Simon Glass

dm: Add a panic_str() function to reduce code size

2015-04-23T15:05:52+00:00

The printf() in panic() adds about 1.5KB of code size to SPL when compiled
with Thumb-2. Provide a smaller version that does not support printf()-style
arguments and use it in two commonly compiled places.

Signed-off-by: Simon Glass

dm: core: Add dev_get_uclass_priv() to access uclass private data

2015-04-17T01:27:42+00:00

Add a convenience function to access the private data that a uclass stores
for each of its devices. Convert over most existing uses for consistency
and to provide an example for others.

Signed-off-by: Simon Glass

dm: serial: remove bogus include

2015-03-25T22:33:27+00:00

Serial-uclass should be generically implemented without depending
a particular hardware.  Fortunately, nothing in include/ns16550.h is
referenced from drivers/serial/serial-uclass.c, so remove this bogus
include.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Tom Rini 
Acked-by: Simon Glass