fix(st-uart): aarch32: wait for UART ISR register TC bit for console flush

Loop over the UART_ISR_TC bit to make sure the FIFO is emptied and all
the data is out of the shift register.

Change-Id: I

fix(st-uart): aarch32: wait for UART ISR register TC bit for console flush

Loop over the UART_ISR_TC bit to make sure the FIFO is emptied and all
the data is out of the shift register.

Change-Id: I94b6238e3f8a94bc4a1fabaf8d45d3b66d42e834
Signed-off-by: Clément Le Goffic <legoffic.clement@gmail.com>

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fix(st-uart): aarch32: remove unnecessary timeout waiting in putc

The UART is configured with FIFO enabled, therefore putting a
character in the TDR register and wait for the transmission flag
compl

fix(st-uart): aarch32: remove unnecessary timeout waiting in putc

The UART is configured with FIFO enabled, therefore putting a
character in the TDR register and wait for the transmission flag
complete is enough.

Change-Id: I5e254df89f2652e300ea5bedf9269d420895bdbf
Signed-off-by: Clément Le Goffic <legoffic.clement@gmail.com>

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fix(st-uart): aarch64: wait for UART ISR register TC bit for console flush

Loop over the UART_ISR_TC bit to make sure the FIFO is emptied and all
the data is out of the shift register.
Fix the retur

fix(st-uart): aarch64: wait for UART ISR register TC bit for console flush

Loop over the UART_ISR_TC bit to make sure the FIFO is emptied and all
the data is out of the shift register.
Fix the return value that should be void in flush related functions
description.

Change-Id: Idbeecc3ca36b6ce506c9489b4f611bbe345121a3
Signed-off-by: Clément Le Goffic <legoffic.clement@gmail.com>

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fix(st-uart): aarch64: unwait for UART ISR register TC bit in putc function

The loop over the UART_ISR_TC flag was needed before the UART FIFO was
enabled. This allowed to make sure each character w

fix(st-uart): aarch64: unwait for UART ISR register TC bit in putc function

The loop over the UART_ISR_TC flag was needed before the UART FIFO was
enabled. This allowed to make sure each character written in TDR was
outputed.
This behavior is no more needed. Once a character is in the FIFO the
UART will empty it when it is clocked.

Change-Id: I914c7f75a451bedbcc9287d8ed9178db47b4eab4
Signed-off-by: Clément Le Goffic <legoffic.clement@gmail.com>

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feat(st-uart): add AARCH64 stm32_console driver

It is an adaptation for AARCH64 of the already existing AARCH32 driver.

Change-Id: Ifabf716a6bd188d2249650a34bbec1a602bcb017
Signed-off-by: Yann Gaut

feat(st-uart): add AARCH64 stm32_console driver

It is an adaptation for AARCH64 of the already existing AARCH32 driver.

Change-Id: Ifabf716a6bd188d2249650a34bbec1a602bcb017
Signed-off-by: Yann Gautier <yann.gautier@st.com>

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fix(st-uart): correctly check UART enabled in flush fonction

Use tst instead of ands to check USART_CR1_UE bit is set. If not exit
the flush function.

Signed-off-by: Yann Gautier <yann.gautier@st.c

fix(st-uart): correctly check UART enabled in flush fonction

Use tst instead of ands to check USART_CR1_UE bit is set. If not exit
the flush function.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: Ibd2e18f6d8837073d0bbcb150e993985d3c0dd6f

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fix(st-uart): skip console flush if UART is disabled

Check the USART_CR1_UE bit and if it is 0, the UART is not enabled,
or not clocked (but the read won't freeze the bus and will return 0).
In this

fix(st-uart): skip console flush if UART is disabled

Check the USART_CR1_UE bit and if it is 0, the UART is not enabled,
or not clocked (but the read won't freeze the bus and will return 0).
In this case skip the console flush.

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I5d1ef7e51612b4795e314b2f2da04a514b6c96a0

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