u-boot.git/drivers/serial/serial-uclass.c, branch v2017.09

serial: serial-uclass: Add generic serial RX buffer support

2017-08-24T03:00:47+00:00

Pasting longer lines into the U-Boot console prompt sometimes leads to
characters missing. One problem here is the small 16-byte FIFO of the
legacy NS16550 UART, e.g. on x86 platforms.

This patch now introduces a Kconfig option to enable RX buffer support
for all DM based serial drivers. With this option enabled, I was
able paste really long lines into the U-Boot console, without any
characters missing.

Signed-off-by: Stefan Roese 
Cc: Simon Glass 
Cc: Bin Meng 
Cc: Tom Rini 
Reviewed-by: Bin Meng 
Tested-by: Bin Meng

dm: console: Check for serial devices properly

2017-07-31T16:21:40+00:00

With driver model the serial device is often not called "serial". Mark
driver-model stdio devices so that they can be detected and we can look up
the uclass. This is a more reliable way of finding out whether the console
is connected to a serial device or not.

Signed-off-by: Simon Glass

spl: make SPL and normal u-boot stage use independent SYS_MALLOC_F_LEN

2017-07-27T12:59:03+00:00

Some platforms have very limited SRAM to run SPL code, so there may
not be the same amount space for a malloc pool before relocation in
the SPL stage as the normal U-Boot stage.

Make SPL and (the full) U-Boot stage use independent SYS_MALLOC_F_LEN,
so the size of pre-relocation malloc pool can be configured memory
space independently.

Signed-off-by: Andy Yan 
Reviewed-by: Tom Rini 
Acked-by: Philipp Tomsich 
Reviewed-by: Philipp Tomsich 
[fixed up commit-message:]
Signed-off-by: Philipp Tomsich

dm: serial: Add livetree support

2017-07-11T16:08:20+00:00

Add support for a live device tree to the core serial uclass.

Signed-off-by: Simon Glass 
Tested-by: Marcel Ziswiler 
Tested-on: Beaver, Jetson-TK1

dm: serial: Separate out the core serial-device finding code

2017-07-11T16:08:20+00:00

This function is quite long. Move the core code into a separate function
in preparation for adding livetree support.

Signed-off-by: Simon Glass 
Tested-by: Marcel Ziswiler 
Tested-on: Beaver, Jetson-TK1

serial: make serial_stub_* to static functions

2017-07-06T17:09:35+00:00

Add missing static to serial_stub_puts().

Unexport serial_stub_{getc,tstc} because they are used locally.

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

dm: core: Update lists_bind_fdt() to use ofnode

2017-06-01T13:03:08+00:00

Adjust this function to use an ofnode instead of an offset, so it can be
used with livetree. This involves updating all callers.

Signed-off-by: Simon Glass

serial: serial-uclass: Use force parameter in stdio_deregister_dev()

2017-05-17T09:13:06+00:00

On my x86 platform I've noticed, that calling dm_uninit() or the new
function dm_remove_devices_flags() does not remove the desired device at
all. Debugging showed, that the serial uclass returns -EPERM in
serial_pre_remove(). This patch sets the force parameter when calling
stdio_deregister_dev() resulting in a removal of the device.

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

Convert CONFIG_SYS_STDIO_DEREGISTER to Kconfig

2016-10-23T22:34:17+00:00

This converts the following to Kconfig:
   CONFIG_SYS_STDIO_DEREGISTER

This option should never be enabled in SPL, so use
CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) when checking the option.

Signed-off-by: Simon Glass 
[trini: Re-sync]
Signed-off-by: Tom Rini

dm: serial: Add support for of-platdata

2016-07-15T02:40:24+00:00

When this feature is enabled, we cannot access the device tree to find out
which serial device to use. Just use the first serial driver we find.

Signed-off-by: Simon Glass