Simon Glass <sjg@chromium.org> says:
When the SPL build-phase was first created it was designed to solve a
particular problem (the need to init SDRAM so that U-Boot proper could
be loaded). It has since expanded to become an important part of U-Boot,
with three phases now present: TPL, VPL and SPL
Due to this history, the term 'SPL' is used to mean both a particular
phase (the one before U-Boot proper) and all the non-proper phases.
This has become confusing.
For a similar reason CONFIG_SPL_BUILD is set to 'y' for all 'SPL'
phases, not just SPL. So code which can only be compiled for actual SPL,
for example, must use something like this:
#if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
In Makefiles we have similar issues. SPL_ has been used as a variable
which expands to either SPL_ or nothing, to chose between options like
CONFIG_BLK and CONFIG_SPL_BLK. When TPL appeared, a new SPL_TPL variable
was created which expanded to 'SPL_', 'TPL_' or nothing. Later it was
updated to support 'VPL_' as well.
This series starts a change in terminology and usage to resolve the
above issues:
- The word 'xPL' is used instead of 'SPL' to mean a non-proper build
- A new CONFIG_XPL_BUILD define indicates that the current build is an
'xPL' build
- The existing CONFIG_SPL_BUILD is changed to mean SPL; it is not now
defined for TPL and VPL phases
- The existing SPL_ Makefile variable is renamed to SPL_
- The existing SPL_TPL Makefile variable is renamed to PHASE_
It should be noted that xpl_phase() can generally be used instead of
the above CONFIGs without a code-space or run-time penalty.
This series does not attempt to convert all of U-Boot to use this new
terminology but it makes a start. In particular, renaming spl.h and
common/spl seems like a bridge too far at this point.
The series is fully bisectable. It has also been checked to ensure there
are no code-size changes on any commit.
Use PHASE_ as the symbol to select a particular XPL build. This means
that SPL_TPL_ is no-longer set.
Update the comment in bootstage to refer to this symbol, instead of
SPL_
Signed-off-by: Simon Glass <sjg@chromium.org>
Initializing a clock driver to read a known static clock rate can take
some time at U-Boot proper pre-reloc phase.
Change to first try and read clock rate from DT to speed up boot time,
fall back to getting the clock rate from clock driver.
This help reduce boot time by around:
- ~35ms on a Radxa ROCK Pi 4 (RK3399)
- ~15ms on a Radxa ZERO 3W (RK3566)
Time that is wasted getting a static rate known at compile time.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
With sandbox, when U-Boot is waiting for input it syncs the video
display, since presumably the user has finished typing.
Now that cyclic is used for video syncing, we can drop this. Cyclic
will automatically call the video_idle() function when idle.
Signed-off-by: Simon Glass <sjg@chromium.org>
Christian Marangi <ansuelsmth@gmail.com> says:
This is an initial series that have all the initial trivial
fixes required for usage of OF_UPSTREAM for the mediatek SoC
This also contains the pcie-gen3 driver and the required tphy
support driver to make it work.
Subsequent series will follow with conversion of the mtk-clk
to permit usage of OF_UPSTREAM and upstream clk ID.
MT7981, MT7986 and MT7988 migration to upstream clock ID
is complete and working on MT7623.
Series CI tested with PR: https://github.com/u-boot/u-boot/pull/590
Upstream linux serial driver use a different logic to setup serial regs.
They have 2 interval:
- < 115200 we use lowspeed regs and 16 * baud
- >= 115200 we use highspeed
We currently use force_highspeed property to force usage of highspeed
regs even with low baud rate.
Add special handling if the upstream compatible is used where we just
apply the same interval with anything >= 115200 in highspeed simulating
force_highspeed.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Upstream linux also provide the additional optional bus clock.
Add support for it and also enable the baud and bus clock on probe.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Jiaxun Yang <jiaxun.yang@flygoat.com> says:
Hi all,
This series enabled qemu-xtensa board.
For dc232b CPU it needs to be built with toolchain[1].
This is a side product of me investigating architectures
physical address != virtual address in U-Boot. Now we can
get it covered under CI and regular tests.
VirtIO devices are not working as expected, due to U-Boot's
assumption on VA == PA everywhere, I'm going to get this fixed
later.
My Xtensa knowledge is pretty limited, Xtensa people please
feel free to point out if I got anything wrong.
Thanks
[1]: https://github.com/foss-xtensa/toolchain/releases/download/2020.07/x86_64-2020.07-xtensa-dc232b-elf.tar.gz
Add xtensa semihosting driver.
It can't use regular semihosting driver as Xtensa's has it's own
semihosting ABI.
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
watchdog_reset() is no more. Make the comments match the code and
today's reality.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Stefan Roese <sr@denx.de>
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 <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
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 c8ffd1356d, reversing
changes made to 2ee6f3a5f7.
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
Greg Malysa <greg.malysa@timesys.com> says:
This series adds support for the ADI SC5xx machine type and includes two
core drivers that are required for being able to boot any board--a UART
driver, the gptimer driver which is used as a clock reference (CNTVCNT
is not supported on the armv7 sc5xx SoCs) and the clock tree driver. Our
corresponding Linux support relies on u-boot configuring the clocks
correctly before booting, so it is not possible to boot any board
without the CGU/CDU configuration happening here. There are also no
board files, device trees, or defconfigs included here, but some common
definitions that will be used to build board files currently are. The
sc5xx SoCs themselves include many armv7 families (sc57x, sc58x, and
sc594) all using an ARM Cortex-A5, and one armv8 family (sc598) indended
to be a drop-in replacement for the SC594 in terms of peripherals, with
a Cortex-A55 instead.
Some of the configuration code in dmcinit and clkinit is quite scary and
causes a lot of checkpatch violations. It is modified from code
initially provided by ADI, but it has not been fully rewritten. There's
a question of how important it is to clean up this code--it has some
quality violations, but it has been in use (including in production) for
over two years and is known to work for performing the low level SoC
initialization, while a rewrite might introduce timing or sequence bugs
that could take a significant amount of time to detect in the future.
Remove <common.h> from this driver directory and when needed
add missing include files directly.
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
SE HMIBSC board uses UART1 as the main debug console, so add
corresponding clocks and pinmux support. Along with that update
instructions to enable clocks for debug UART support.
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
The driver currently requires the bit clock divider be hardcoded in
devicetree (or use the hardcoded default from apq8016).
The bit clock divider is used to derive the baud rate from the core
clock:
baudrate = clk_rate / csr_div
clk_rate is the actual programmed core clock rate which is returned by
clk_set_rate(), and this UART driver only supports a baudrate of 115200.
We can therefore determine the appropriate value for UARTDM_CSR by
iterating over the possible values and finding the one where the
equation above holds true for a baudrate of 115200.
Implement this logic and drop the non-standard DT bindings for this
driver.
Tested on dragonboard410c.
Tested-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
MSM serial in DEBUG UART mode is trying to set .clk_rate, but the
msm_serial_data structure does not have such property at all, so lets
remove it as otherwise it will fail compiling.
Fixes: 90023bdfe9 ("serial: msm: add debug UART")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Currently, DEBUG_UART_MSM depends on ARCH_SNAPDRAGON only, but IPQ40XX
devices also use the same UART HW so they can also use the debug UART.
So, allow selecting DEBUG_UART_MSM when using ARCH_IPQ40XX as well.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Xilinx changes for v2024.07-rc1
xilinx:
- Do not call env_get_location when !ENV_IS_NOWHERE
- Add FDT_FIXUP_PARTITIONS support
- Fix legacy format MAC decoding
zynqmp:
- Enable semihosting SPL support
- DT updates
- Kconfig resort/cleanup
- Don't describe second image/capsule if !SPL
- Add support for dfu/capsule description via MTD
- Support JTAG as alternative boot mode
- Add support for TEG soc variant
zynqmp-kria:
- Wire usb4 boot device
- Update SDIO tristate pin configuration
- Disable SPI_FLASH_BAR to avoid issue with SPI after update
mbv:
- Enable SPL and binman
- Small platform changes
zynqmp-nand:
- Error out in case of unsupported SW ECC
- Clean error path
versal-net:
- Support multiple locations for variables
When using OF_LIVE, the debug UART driver won't be probed if it's a
subnode of the geni-se-qup controller. Add a NOP driver for the
controller to correctly discover its child nodes.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Some devices like the UART and clock controller reference an RPM(h)
power domain. We don't support this device in U-Boot, so add
DM_FLAG_DEFAULT_PD_CTRL_OFF to tell DM core not to try and enable the
power domain.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
- A new driver in the misc to register setting from device tree. This
also provides user a clean interface and all register settings are
centralized in one place, device tree.
- Enable Agilex5 platform for Intel product. Changes, modification and
new files are created for board, dts, configs and makefile to create
the base for Agilex5.
Build-tested on SoC64 boards, boot tested on some of them.
U-Boot SPL loads the device-tree directly behind main U-Boot overlapping
the .bss section. reserve_fdt() is called in board_init_f() to relocate the
device-tree to a safe location.
Debug UARTs are enabled before board_init_f(). With sbi_dbcn_available in
the .bss section the device-tree is corrupted when _debug_uart_init() is
called in the SBI serial driver. Move the variable to the .data section.
Link: https://bugs.launchpad.net/ubuntu/+source/u-boot/+bug/2054091
Fixes: dfe0837494 ("risc-v: implement DBCN based debug console")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
It is found that when DM is enabled, only generic init function is
called in .probe(). Baudrate is never honored. Add a function call
to .setbrg() when probing so that we can update the baudrate of the
serial device.
Signed-off-by: Yang Xiwen <forbidden405@outlook.com>
Rename ARCH_RMOBILE to ARCH_RENESAS because all the chips are made
by Renesas, while only a subset of them is from the R-Mobile
line.
Use the following command to perform the rename:
"
$ git grep -l 'ARCH_RMOBILE' | xargs -I {} sed -i 's@ARCH_RMOBILE@ARCH_RENESAS@g' {}
"
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Use the modern helpers to fetch the clock and use the correct property
("clocks" instead of "clock"). Drop the call to pinctrl_select_state()
as no boards have a "uart" pinctrl state and this prints confusing
errors.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Tested-by: Sumit Garg <sumit.garg@linaro.org> #qcs404
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Introduce support for early debugging. This relies on the previous stage
bootloader to initialise the UART clocks, when running with U-Boot as
the primary bootloader this feature doesn't work. It will require a way
to configure the clocks before the driver model is available.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Enable serial support for Exynos850 SoC by adding the corresponding
compatible string. No additional changes needed, the driver works as is
on Exynos850. Related USI and PMU configuration is enabled in separate
drivers. The only other dependencies are clock and pinctrl drivers,
which are already enabled too.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
devm_clk_get() returns an ERR_PTR on failure, not null. Fix the check to
avoid the board crashing when the clock isn't available.
Additionally, add the missing error handling for this function.
Fixes: 324df15a29 ("serial: qcom: add support for GENI serial driver")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
commit 1b15483deb ("misc: add Qualcomm GENI SE QUP device driver")
introduced support for platform-specific oversampling values, necessary
to configure the UART clocks on all platforms at runtime. However it
relies in probing a parent device. Despite the DM_FLAG_PRE_RELOC flag,
this is not done consistently during boot.
Instead, take another approach by relying on ofnode_ helpers to read the
serial engine base address and do the read directly. This fixes early
UART on boards with a non-default oversampling rate.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
As the address read from device tree is being cast to a pointer, it's
better to use dev_read_addr_ptr() API for getting that address. The more
detailed explanation can be found in commit a12a73b664 ("drivers: use
dev_read_addr_ptr when cast to pointer").
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Get rid of magic numbers in s5p_serial_init() when writing to UART
registers. While at it, use BIT() macro for existing constants when
appropriate.
No functional change.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Use dev_read_u8_default() instead of fdtdec_get_int() to read the "id"
property from device tree, as suggested in [1]. dev_* API is already
used in this driver, so there is no reason to stick to fdtdec_* API.
This also fixes checkpatch warning:
WARNING: Use the livetree API (dev_read_...)
[1] doc/develop/driver-model/livetree.rst
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
