u-boot.git/drivers/serial, branch v2016.05

serial: bcm283x_mu: make pending values more explicit

2016-04-18T21:11:47+00:00

dm_serial_ops.pending should return the number of characters, not just a
valid C Boolean integer value. The existing code does already does this,
but only as an accident since BCM283X_MU_LSR_RX_READY happens to be
BIT(0). Enhance the code to be more explicit about the values it returns.

Suggested-by: Simon Glass 
Signed-off-by: Stephen Warren

arc: get rid of running_on_hw

2016-04-11T17:20:30+00:00

ISS is obsolete now and nSIM is used for simulation instead.
In its turn nSIM properly handles baud-rate settings so get rid
of now useless check.

Signed-off-by: Alexey Brodkin

serial: Add support for Qualcomm serial port

2016-04-01T21:18:07+00:00

This driver works in "new" Data Mover UART mode, so
will be compatible with modern Qualcomm chips only.

Signed-off-by: Mateusz Kulikowski 
Reviewed-by: Simon Glass 
Tested-by: Simon Glass

serial: uniphier: use devm_get_addr() to get base address

2016-03-31T15:17:07+00:00

Currently, fdtdec_get_addr_size() does not support the address
translation, so it cannot handle device trees with non-straight
"ranges" properties.  (This would be a problem with DTS for UniPhier
ARMv8 SoCs.)

Signed-off-by: Masahiro Yamada

serial: add BCM283x mini UART driver

2016-03-27T13:12:52+00:00

The RPi3 typically uses the regular UART for high-speed communication with
the Bluetooth device, leaving us the mini UART to use for the serial
console. Add support for this UART so we can use it.

Signed-off-by: Stephen Warren

ARM: uniphier: support Debug UART

2016-03-23T16:45:41+00:00

For ARM32 architecture, CONFIG_DEBUG_LL is available for early
low-level debugging (and actually UniPhier 32bit SoCs use it), but
ARM64 architecture does not support it.  Instead, CONFIG_DEBUG_UART
is available as an architecture-independent debug facility.

This commit supports it on all the UniPhier SoCs (including the new
ARMv8 SoCs), which is very useful for new SoC bringups.

Signed-off-by: Masahiro Yamada

serial: pl01x: Add support for devices with the rate pre-configured.

2016-03-22T16:16:12+00:00

For Raspberry Pi, we had the input clock rate to the pl011 fixed in
the rpi.c file, but it may be changed by firmware due to user changes
to config.txt.  Since the firmware always sets up the uart (default
115200 output unless the user changes it), we can just skip our own
uart init to simplify the boot process and more reliably get serial
output.

Signed-off-by: Eric Anholt 
Reviewed-by: Tom Rini 
Tested-by: Stephen Warren

dm: ns16550: Add support for reg-offset property

2016-03-18T03:27:39+00:00

reg-offset is the part of standard 8250 binding in the kernel.
It is shifting start of address space by reg-offset.
On Xilinx platform this offset is typically 0x1000.

Signed-off-by: Michal Simek 
Reviewed-by: Simon Glass 
Reviewed-by: Tom Rini 
Moved the new field to the end of the struct to avoid problems:
Signed-off-by: Simon Glass

x86: Allow use of serial soon after relocation

2016-03-17T02:27:24+00:00

At present on x86 machines with use cache-as-RAM, the memory goes away just
before board_init_r() is called. This means that serial drivers are
no-longer unavailable, until initr_dm() it called, etc.

Any attempt to use printf() within this period will cause a hang.

To fix this, mark the serial devices as 'unavailable' when it is no-longer
available. Bring it back when serial_initialize() is called. This means that
the debug UART will be used instead for this period.

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

dm: serial: Remove duplicated carriage return character

2016-03-14T21:34:50+00:00

As the handling for carriage return and line feed is done in the common
DM driver serial-uclass.c, such handling in some serial DM drivers is
duplicated and need to be removed.

Signed-off-by: Alison Wang 
Reviewed-by: Bin Meng