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Since commit 948da7773e34 ("arm: Add new config option ARCH_VERY_EARLY_INIT")
debug_uart_init() is called respectively in crt0.S and crt0_64.S.
That means that _debug_uart_init() is called for all STM32MP platforms
even for those which doesn't support SPL_BUILD.
So restrict _debug_uart_init() execution for platforms which can have
SPL_BUILD enabled (STM32MP1 platform only).
It's more needed to call debug_uart_init() in stm32mp1/cpu.c.
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
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As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Remove <common.h> from this driver directory and when needed
add missing include files directly.
Reviewed-by: Peter Robinson <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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When building with AARCH64 defconfig, we got warnings, fix them
by using registers base address defined as void __iomem * instead of
fdt_addr_t.
Signed-off-by: Patrice Chotard <[email protected]>
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
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Waiting 150us TC bit couldn't be enough.
If TFA lets 16 bits in USART fifo, we has to wait 16 times 87 us (time
of 10 bits (1 byte in most use cases) at a baud rate of 115200).
Fixes: b4dbc5d65a67 ("serial: stm32: Wait TC bit before performing initialization")
Signed-off-by: Valentin Caron <[email protected]>
Signed-off-by: Patrice Chotard <[email protected]>
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To avoid spurious chars, BRR register must only be written when
USART is disabled.
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
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In case there is still chars from previous bootstage to transmit, wait
for TC (Transmission Complete) bit to be set which ensure that the last
data written in the USART_TDR has been transmitted out of the shift
register.
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
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CONFIG_VAL(DEBUG_UART_BASE) expands to CONFIG_DEBUG_UART_BASE or
CONFIG_SPL_DEBUG_UART_BASE or CONFIG_TPL_DEBUG_UART_BASE and allows boards
to set different values for SPL, TPL and U-Boot Proper.
For ns16550 driver this support is there since commit d293759d55cc
("serial: ns16550: Add support for SPL_DEBUG_UART_BASE").
Signed-off-by: Pali Rohár <[email protected]>
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Define LOG_CATEGORY to allow filtering with log command.
Signed-off-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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Try to maintain some consistency between these variables by using _plat as
a suffix for them.
Signed-off-by: Simon Glass <[email protected]>
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This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.
Signed-off-by: Simon Glass <[email protected]>
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Rename this to be consistent with the change from 'platdata'.
Signed-off-by: Simon Glass <[email protected]>
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We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <[email protected]>
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This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.
Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.
Signed-off-by: Simon Glass <[email protected]>
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When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <[email protected]>
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This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing
changes made to 56d37f1c564107e27d873181d838571b7d7860e7.
Unfortunately this is causing CI failures:
https://travis-ci.org/github/trini/u-boot/jobs/711313649
Signed-off-by: Tom Rini <[email protected]>
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When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Move this header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <[email protected]>
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Add management of Bit 1 of USART_ISR = FE: Framing error
This bit is set by hardware when a de-synchronization, excessive noise
or a break character is detected. It is cleared by software, writing 1
to the FECF bit in the USART_ICR register (for stm32 after f4).
Signed-off-by: Patrick Delaunay <[email protected]>
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This patch solves the following warnings:
drivers/serial/serial_stm32.c: In function 'stm32_serial_probe':
warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
if (plat->clock_rate < 0) {
^
Signed-off-by: Patrice Chotard <[email protected]>
Signed-off-by: Patrick Delaunay <[email protected]>
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For STM32MP, the watchdog is based on DM and the function watchod_reset
call the function uclass_get_device(UCLASS_WDT) to found the driver
associated IWDG2.
As this reset is not mandatory in debug putc (the uart fifo will be
empty after some us), we can simplify the code by removing this call.
And this patch avoid issue when putc is called before initialization
of DM core, before the parsing of the device tree parsing and each
node bound to driver; that also avoid memory leak.
Signed-off-by: Patrick Delaunay <[email protected]>
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Remove the trace indicating the end of the DEBUG initialization
Signed-off-by: Patrick Delaunay <[email protected]>
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In some cases, UART is configured by early boot stage.
To be sure of the initial state of UART and to avoid
spurious chars on console, reset the serial block before
configuring it.
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Replace stm32_serial_setparity by stm32_serial_setconfig
which allows to set serial bits number, parity and stop
bits number.
Only parity setting is implemented.
Signed-off-by: Patrick Delaunay <[email protected]>
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add possibility to update the serial parity used.
Signed-off-by: Patrick Delaunay <[email protected]>
Signed-off-by: Patrice Chotard <[email protected]>
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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 <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add support for early debug printf, before the availability of
driver model and device tree support.
Signed-off-by: Patrick Delaunay <[email protected]>
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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Now this driver is used across stm32f4, stm32f7 and stm32h7
SoCs family, give it a generic name.
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Vikas Manocha <[email protected]>
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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 <[email protected]>
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This patch removes the uart clock enable from serial driver & move it in the
board code.
Signed-off-by: Vikas Manocha <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Signed-off-by: Kamil Lulko <[email protected]>
Cc: Simon Glass <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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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 698a12bef9e782dcd99c555a739c16eec8669f14.
Signed-off-by: Tom Rini <[email protected]>
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As per the author, we don't need this patch really since the other patch
"stm32f4: fix serial output" superseded it.
This reverts commit 85e5f5b7a7f8d889271f94791606cde62d81d53f.
Signed-off-by: Tom Rini <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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Signed-off-by: Kamil Lulko <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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