Rename USART_ISR_FLAG_xxx bits to USART_ISR_xxx bits and
USART_ICR_OREF to USART_ICR_ORECF in order to match datasheets.
Sort defines by descendant order.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add support for early debug printf, before the availability of
driver model and device tree support.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
Uart status register is named USART_ISR on STM32F7, STM32H7
and STM32MP1 SoCs family, but USART_SR only on STM32F4 SoCs.
Use USART_ISR_ prefix instead of USART_SR_ .
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Enable uart overrun feature which allows to benefits of uart
FIFO usage.
Previously overrun management was disabled, this has to effect
to bypassed the uart FIFO usage even if FIFO was enabled.
In particular configuration, for example when video console is
enabled, copy/pasting a long command line in console results in
corruption. This is due to the fact that a lot of time is consumed
in flushing the cache during frame buffer update, so uart chars are
not read fast enough.
By using uart FIFO and managing overrun, long command line can by
copy/paste in console without being corrupted.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.
Signed-off-by: Tom Rini <trini@konsulko.com>
Now this driver is used across stm32f4, stm32f7 and stm32h7
SoCs family, give it a generic name.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Remove serial_stm32.c driver and uart init from board file,
use available DM serial_stm32x7.c driver compatible for
STM32F4/F7 and H7 SoCs.
The serial_stm32x7.c driver will be renamed later with a more
generic name as it's shared with all STM32 Socs.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This patch removes the uart clock enable from serial driver & move it in the
board code.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Due to a misunderstanding, in 698a12b we reverted changes that we in
fact wanted to keep. So lets fix that mistake and bring the code back
to how it should have been.
This reverts commit 698a12bef9.
Signed-off-by: Tom Rini <trini@konsulko.com>
As per the author, we don't need this patch really since the other patch
"stm32f4: fix serial output" superseded it.
This reverts commit 85e5f5b7a7.
Signed-off-by: Tom Rini <trini@konsulko.com>
Add the stm32F4 board's serial ports support.
User can use it easily.
The user only need to edit the number of the usart.
The patch also fix the serial print out.
Last, this version of patch fix the first patch checkpatch.pl error.
Thanks to Kamil Lulko.
Signed-off-by: kunhuahuang <huangkunhua@gmail.com>
This patch fix the serial output.
The source is from Kamil Lulko's "stm32f429-discovery board support"
Thanks, Varcain. I learned a lot.
Signed-off-by: kunhuahuang <huangkunhua@gmail.com>
