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This converts the following to Kconfig:
CONFIG_MXC_UART
Signed-off-by: Tom Rini <[email protected]>
Acked-by: Peng Fan <[email protected]>
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https://gitlab.denx.de/u-boot/custodians/u-boot-uniphier
UniPhier SoC updates for v2020.10
- remove workaround for Cortex-A72
- increase U-Boot proper size to 2MB
- sync DT with Linux
- add system bus controller driver
- improve serial driver
- add reset assertion to Denali NAND driver
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This UART controller is integrated with a FIFO. Enable it.
You can put the next character into the FIFO while the transmitter
is sending out the current character. This works slightly faster.
Signed-off-by: Masahiro Yamada <[email protected]>
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Ensure the transmitter is empty when chaining the baudrate or any
hardware settings. If a character is remaining in the transmitter,
the console will be garbled.
Signed-off-by: Masahiro Yamada <[email protected]>
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After all, I am not a big fan of using a structure to represent the
hardware register map.
You do not need to know the entire register map.
Add only necessary register macros.
Use FIELD_PREP() instead of maintaining a pair of shift and mask.
Signed-off-by: Masahiro Yamada <[email protected]>
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Currently when using OF_PLATDATA the binding between devices and drivers
is done trying to match the compatible string in the node with a driver
name. However, usually a single driver supports multiple compatible strings
which causes that only devices which its compatible string matches a
driver name get bound.
To overcome this issue, this patch adds the U_BOOT_DRIVER_ALIAS macro,
which generates no code at all, but allows an easy way to declare driver
name aliases. Thanks to this, dtoc could be improve to look for the driver
name based on its alias when it populates the U_BOOT_DEVICE entry.
Signed-off-by: Walter Lozano <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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When using OF_PLATDATA, the bind process between devices and drivers
is performed trying to match compatible string with driver names.
However driver names are not strictly defined, and also there are different
names used when declaring a driver with U_BOOT_DRIVER, the name of the
symbol used in the linker list and the used in the struct driver_info.
In order to make things a bit more clear, rename the drivers names. This
will also help for further OF_PLATDATA improvements, such as checking
for valid driver names.
Signed-off-by: Walter Lozano <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Add a fix for sandbox of-platdata to avoid using an invalid ANSI colour:
Signed-off-by: Simon Glass <[email protected]>
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Debug console is the part of serial driver in the same file. It means to be
able to enable debug console you also need to enable driver itself.
That's why add all dependecies and list only debug consoles which are
enabled based on driver selection to avoid compilation error when user
asks for certain debug console but driver is not enable for it.
Error:
aarch64-linux-gnu-ld.bfd: common/built-in.o: in function `putc':
/home/monstr/data/disk/u-boot/common/console.c:513: undefined reference to `printch'
aarch64-linux-gnu-ld.bfd: common/built-in.o: in function `puts':
/home/monstr/data/disk/u-boot/common/console.c:563: undefined reference to `printch'
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
[trini: Fix ns16550 dependency, add ZYNQ_SERIAL, change S5P]
Signed-off-by: Tom Rini <[email protected]>
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The symbol "CONFIG_ARM_DCC" is used to control building
drivers/serial/arm_dcc.c. Provide a simple Kconfig entry for this.
Cc: Luca Ceresoli <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Tom McLeod <[email protected]>
Cc: Mike Looijmans <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Luca Ceresoli <[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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We cannot rely on a parent bus that needs to be probed, until we know that
it is probed. That means that code in the ofdata_to_platdata() method
cannot rely on the parent bus being probed.
Move the ofdata code in the two serial drivers into a probe() method.
This fixes serial output on rpi_3b_32b with the following config.txt
options:
enable_uart=1
gpu_freq=250
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Matthias Brugger <[email protected]>
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Even though the PL011 UART driver claims to be DM compliant, it does not
really a good job with parsing DT nodes. U-Boot seems to adhere to a
non-standard binding, either requiring to have a "skip-init" property in
the node, or to have an extra "clock" property holding the base
*frequency* value for the baud rate generator.
DTs in the U-Boot tree seem to have been hacked to match this
requirement.
The official binding does not mention any of these properties, instead
recommends a standard "clocks" property to point to the baud base clock.
Some boards use simple "fixed-clock" providers, which U-Boot readily
supports, so let's add some simple DM clock code to the PL011 driver to
learn the rate of the first clock, as described by the official binding.
These clock nodes seem to be not ready very early in the boot process,
so provide a fallback value, by re-using the already existing
CONFIG_PL011_CLOCK variable.
Signed-off-by: Andre Przywara <[email protected]>
[trini: Add <clock_legacy.h> for get_bus_freq() for layerscape
platforms]
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Synchronize device tree bindings with v5.5-rc6 tag with commit id
"b3a987b0264d".
Also, it removes older clock binding defined for S900 along with undocumented
compatible string "actions,s900-serial" from serial driver and adapts clock
driver to cater to new bindings.
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Signed-off-by: Amit Singh Tomar <[email protected]>
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This patch adds "actions,owl-uart" string to the owl uart driver. It
is also defined in Linux kernel.
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Signed-off-by: Amit Singh Tomar <[email protected]>
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Functions for reading indexed values from device tree
Enhancements to 'dm' command
Log test enhancements and syslog driver
DM change to read parent ofdata before children
Minor fixes
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Currently, the baud rate is never set on boot. This works ok when a previous
bootloader has configured the baudrate properly, or when the baudrate is set to
a reasonable default in the serial driver's probe(). However, when this is not
the case, we could be using a different baud rate than what was configured.
Signed-off-by: Sean Anderson <[email protected]>
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Some callers may need the UART base clock speed value.
Provide it in the ->getinfo() callback.
Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Some callers of serial_getinfo() would like to know the UART base
clock speed in order to make decision what to pass to OS in some
cases. In particular, ACPI SPCR table expects only certain base
clock speed and thus we have to act accordingly.
Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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The commit a673025535ae ("serial: zynq: Initialize uart only before
relocation") introduced code which detects relocation which is working for
single uart instance. With multiple instances in place there is a need to
enable and setup every instance. That's why detect if TX is enabled. If it
is then don't initialize uart again.
In post probe setbrg is called to setup baudrate but values should be the
same.
As a side effect of this change is that DECLARE_GLOBAL_DATA_PTR can be
removed completely.
Signed-off-by: Michal Simek <[email protected]>
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Currently the driver gets ns16550 base address in the driver
probe() routine, which may potentially break any ns16550 wrapper
driver that does additional initialization before calling
ns16550_serial_probe().
Things are complicated that we need consider ns16550 devices on
both simple-bus and PCI bus. To fix the issue we move the base
address assignment for simple-bus ns16550 device back to the
ofdata_to_platdata(), and assign base address for PCI ns16550
device in ns16550_serial_probe().
This is still not perfect. If any PCI bus based ns16550 wrapper
driver tries to access plat->base before calling probe(), it is
still subject to break.
Fixes: 720f9e1fdb0c9 ("serial: ns16550: Move PCI access from ofdata_to_platdata() to probe()")
Reported-by: Andy Shevchenko <[email protected]>
Signed-off-by: Bin Meng <[email protected]>
Tested-by: Andy Shevchenko <[email protected]>
Reviewed-by: Wolfgang Wallner <[email protected]>
Tested-by: Wolfgang Wallner <[email protected]>
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All drivers seems to align now to serial_xxx maning, so, aligning
also this driver, to allow to be found easily.
Signed-off-by: Angelo Durgehello <[email protected]>
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Actually, using dev->seq value before probe to deduce the current
serial port index leads to reading an invalid seq value (-1).
So, getting dev->seq at probe time.
Signed-off-by: Angelo Durgehello <[email protected]>
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Some device may enable CONFIG_CLK but not still support this clock in
CC, so better use debug() in place of dev_warn() otherwise a lot of
boards will throw useless dev_warn()s.
Signed-off-by: Giulio Benetti <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Currently the ofdata_to_platdata() method calls dev_read_addr_pci(),
which potentially accesses the parent PCI bus. If this happens before
the parent PCI bus is probed the resulting address will be wrong.
This behavior was triggered by commit 82de42fa1468 ("dm: core:
Allocate parent data separate from probing parent").
According to a comment in drivers/pci/pci-uclass.c [1] accessing
the PCI parent bus in ofdata_to_platdata() is not allowed, and the
access should be moved to the probe() function.
Move the call to dev_read_addr_pci() and the related handling of the
'addr' value from the ofdata_to_platdata() to its own function,
which is then called from the probe() method.
While moving the code, the comment /* try Processor Local Bus device
first */ was dropped. It was initially added with commit 3db886a5bf38
("serial: ns16550: Support ns16550 compatible pci uart devices") and
later made obsolete with commit 33c215af4b9d ("dm: pci: Add a function
to read a PCI BAR").
[1] Comment in drivers/pci/pci-uclass.c:
"A common cause of this problem is that this function is called in the
ofdata_to_platdata() method of @dev. Accessing the PCI bus in that
method is not allowed, since it has not yet been probed. To fix this,
move that access to the probe() method of @dev instead."
Fixes: 82de42fa1468 ("dm: core: Allocate parent data separate from probing parent")
Signed-off-by: Wolfgang Wallner <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]> # Tested on Intel Galileo
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sandbox conversion to SDL2
TPM TEE driver
Various minor sandbox video enhancements
New driver model core utility functions
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Add serial UART driver support for all Cortina Access
CAxxxx family of SoCs.
Reviewed-by: Daniel Schwierzeck <[email protected]>
Signed-off-by: Jason Li <[email protected]>
Signed-off-by: Alex Nemirovsky <[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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At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Anatolij Gustschin <[email protected]>
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Coreboot can provide information about the serial device in use on a
platform. Add a driver that uses this information to produce a working
UART.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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At present this driver uses an assortment of CONFIG options to control
how it accesses the hardware. This is painful for platforms that are
supposed to be controlled by a device tree or a previous-stage bootloader.
Add a new CONFIG option to enable fully dynamic configuration. This
controls register spacing, size, offset and endianness.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Aiden Park <[email protected]>
Tested-by: Aiden Park <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
[bmeng: squashed in http://patchwork.ozlabs.org/patch/1232929/]
Signed-off-by: Bin Meng <[email protected]>
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If baud_divisor is not set (i.e. == -1), we should use the baud divisor
already in use for flushing the xmit register. If we don't flush the
xmit register, then SPL will hang.
Signed-off-by: Patrik Dahlström <[email protected]>
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At present panic() is in the vsprintf.h header file. That does not seem
like an obvious choice for hang(), even though it relates to panic(). So
let's put hang() in its own header.
Signed-off-by: Simon Glass <[email protected]>
[trini: Migrate a few more files]
Signed-off-by: Tom Rini <[email protected]>
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These three clock functions don't use driver model and should be migrated.
In the meantime, create a new file to hold them.
Signed-off-by: Simon Glass <[email protected]>
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This seems pretty old now. It has not been converted to driver model and
is not used by any boards.
Drop it.
Signed-off-by: Simon Glass <[email protected]>
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Some features implicitly depended on MALLOC_F and OF_LIBFDT and would
fail at link-time if these features were not enabled.
Signed-off-by: Sean Anderson <[email protected]>
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Add i.MXRT compatible string and cpu type support to lpuart driver,
to use little endian 32 bits configurations.
Also according to RM, the Receive RX FIFO Enable (RXFE) field in LPUART
FIFO register is bit 3, so this definition should change to 0x08 as done
for i.MX8. It needs also to set baudrate the same way as i.MX8 does.
Signed-off-by: Giulio Benetti <[email protected]>
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This driver assumes that lpuart clock is already enabled before probing
but using DM only lpuart won't be automatically enabled so add
clk_enable() when probing if CONFIG_CLK is defined. If clock is not
found, because DM is not used, let's emit a warning and proceed, because
serial clock could also be already enabled by non DM code. If clock is
found but cna't be enabled then return with error.
Signed-off-by: Giulio Benetti <[email protected]>
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Due to a conversion error the sandbox does not accept byte values 0x80-0xff
from the keyboard. The UEFI extended text input unit test requires Unicode
support.
Use unsigned char for the serial buffer.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
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Fix stdout-path handling
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This missing dependency seems like an oversight, since all other
TPL_DM_* options have it.
Signed-off-by: Thomas Hebb <[email protected]>
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The function declarations in serial.h are not in sync with what is
currently used in usbtty. Fix this by updating the header and including
it, to help catch future such problems.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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With commit f0921f5098d8 ("fdt: Sync up to the latest libfdt"),
SiFive Unleashed board does not boot any more. This was due to
the U-Boot local changes commit 77d7fff8cec2 ("fdt: Fix handling
of paths with options in them") to libfdt/fdt_ro.c was dropped
during the libfdt upgrade.
>From the history [1] it was mentioned that the U-Boot changes
commit 77d7fff8cec2 ("fdt: Fix handling of paths with options in
them") was rejected by libfdt upstream, hence we need find another
way to fix the things.
This commit uses another method, by updating serial_check_stdout()
directly to handle the situation of "stdout-path" with ":options".
A simpler way is to change the logic in fdtdec_get_chosen_node()
to do similar thing, but I feel that not every property in chosen
node may have the option in them, hence it would make more sense
to do the special handling in serial_check_stdout() directly.
[1]: http://patchwork.ozlabs.org/patch/462756/
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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U-Boot support on Raspberry Pi 4 relies on the device-tree
provided by the firmware. The blob does not contain the
U-Boot specific pre-loc-rel properties. The result is, that
the U-Boot banner is not printed.
We fix this by setting the DM_FLAG_PRE_RELOC flag in the driver,
if we rely on a device-tree provided by the firmware.
Reported-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Matthias Brugger <[email protected]>
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This patch adds non-DM version for mtk hsuart driver and makes it
compatible with ns16550a driver in configuration.
This is needed in SPL with CONFIG_SPL_DM disabled for reducing size.
Signed-off-by: Weijie Gao <[email protected]>
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This patch adds codes to enable FIFO and disable flow control taken from
ns16550 driver.
Signed-off-by: Weijie Gao <[email protected]>
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https://gitlab.denx.de/u-boot/custodians/u-boot-imx
u-boot-imx-20191009
-------------------
Travis : https://travis-ci.org/sbabic/u-boot-imx/builds/595148532
- MX6UL / ULZ
- Toradex board
- Allow to set OCRAM for MX6Q/D
- MX7ULP
- MX8: (container image, imx8mq_mek), SCU API
- fix several board booting from SD/EMMC (cubox-i for example)
- pico boards
[trini: display5 merged manually]
Signed-off-by: Tom Rini <[email protected]>
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i.MX7 and i.MX8M use mxc uart driver, so let's make the SoC could
use MXC_UART kconfig.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Ye Li <[email protected]>
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At present PCI address transaction is not supported so drivers must
manually read the correct BAR after reading the device tree info. The
ns16550 has a suitable implementation, so move this code into the core
DM support.
Note that there is no live-tree equivalent at present.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
[bmeng: correct the unclear comments in test.dts]
Signed-off-by: Bin Meng <[email protected]>
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