Add a default fallback device tree in order to allow a successful build
without mentioning the DEVICE_TREE= make flag.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Add support for EFI capsule updates via U-Boot's DFU. This flashes the
boot partition with the new image provided in the capsule.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Some distributions tend to provide a single combined image with EFS and
the system root filesystem. Flashing it as-is in a single partition
(usually done in userdata partition as it is the largest) is not
bootable as U-Boot does not understand subpartitions.
Use blkmap to map the userdata partition into its own block device.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
The USB PHY used by the Exynos7870 SoC has a single USB 2.0 interface.
Add its dedicated variant enum, compatible, and init/exit functions.
The PHY enable bit of Exynos7870's PHY is different in contrast to that
of Exynos850 and most Exynos PHYs. To allow this change, a simple if
condition is added in exynos_usbdrd_phy_isol() which changes the
bitmask. Since the variant enum is required, the function argument is
changed to accept the driver data itself.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
The variant enum is used to uniquely identify which SoC the PHY block
belongs to. It is initially set in the match table, along with the
compatible string, it gets copied to driver data struct during probe.
SoC specific functions must only be called if the respective variant
enum is set. Add switch-case blocks wherever required.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Flashing U-Boot for Exynos 7870 requires creating a stub device tree,
where certain properties and nodes are defined which are populated by
the previous bootloader in the phones.
Since these properties are now available in the U-Boot device tree, it's
now possible to use the same blob generated by U-Boot in place of the
stub, when creating boot images. Update the build documentation to
reflect the same.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Add properties in the DTSI file which is required for S-BOOT when used
an external device tree when booting into U-Boot. S-BOOT is Samsung's
proprietary bootloader, which chainloads U-Boot.
Since this device has multiple bank nodes, add memory nodes for each RAM
bank. This is the format S-BOOT recognizes, and (re)populates it with
the correct bank sizes.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Add properties in the DTSI file which is required for S-BOOT when used
an external device tree when booting into U-Boot. S-BOOT is Samsung's
proprietary bootloader, which chainloads U-Boot.
Since this device has multiple bank nodes, add memory nodes for each RAM
bank. This is the format S-BOOT recognizes, and (re)populates it with
the correct bank sizes.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Add properties in the DTSI file which is required for S-BOOT when used
an external device tree when booting into U-Boot. S-BOOT is Samsung's
proprietary bootloader, which chainloads U-Boot.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
U-Boot for this board is programmed to use the external DTB if an
internal device tree is not available. This makes it safe to build boot
images using the non-DTB U-Boot binary, while taking up less space.
Reflect this change in documentation.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Since there is only one internal device tree allowed in U-Boot, the
DEVICE_TREE flag is required for building images for various devices.
Document it in the build guide.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Since the build documentation recommends using the DEVICE_TREE= make
flag, and the "board" supports multiple devices, remove the default
device tree option so as to enforce the make flag during build.
OF_UPSTREAM_BUILD_VENDOR is added so as to build all device trees
associated with the vendor with their U-Boot includes.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
OF_BOARD allows to choose the internal device tree in runtime. Use it to
pass the external FDT as an internal one if it is not present. This
approach is also used by qcom-phone, and it reduces boot image size. It
is expected that an external FDT is present as U-Boot is packaged as an
Android boot image.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
MULTI_DTB_FIT allowed a single U-Boot image to be booted in multiple
devices, but it was not a scalable solution; as more devices are added,
the U-Boot binary is bound to increase, space taken up by devicetrees
which are not even used.
The other approach is to be able to build separate images for multiple
devices using the same "board" defined in U-Boot. This is used by
qcom_phone to support muitiple devices.
Follow the said approach for Exynos devices as well, disable
MULTI_DTB_FIT for this board.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Move environment variable setup procedure to exynos_env_setup(). This
function is independent of data from exynos_board_info as it is due for
removal in the succeding commits.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Remove the baked-in bank addresses used for figuring out RAM banks from
device tree. Instead, sequentially fill in the bank addresses and sizes,
and doing away with an extra array for specifying bases.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
The parameter 'alpha' is declared as an unsigned type so cannot be
negative. The code to test it as being less than zero will always fail
and so is redundant and should be removed.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Reviewed-by: Stefan Bosch <stefan_b@posteo.net>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
THe variable 'node' is assigned a value of an int, tested for being less
than or equal to zero then passed as an argument to a function that
takes an int so 'node' should not be unsigned. Fix it.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Add a framebuffer node to the DTSI in order to ensure that display
continues to work, as since v6.19 of devicetree-rebasing sources, it
uses Samsung's DECON (Display Enhancement CONtroller) for display, which
is, as of yet, not supported in U-Boot.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Add a framebuffer node to the DTSI in order to ensure that display
continues to work, as since v6.19 of devicetree-rebasing sources, it
uses Samsung's DECON (Display Enhancement CONtroller) for display, which
is, as of yet, not supported in U-Boot.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Add a framebuffer node to the DTSI in order to ensure that display
continues to work, as since v6.19 of devicetree-rebasing sources, it
uses Samsung's DECON (Display Enhancement CONtroller) for display, which
is, as of yet, not supported in U-Boot.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
When the cyclic function video_idle() takes too long, a message like the
following is displayed:
cyclic function video_init took too long: 87707us vs 5000us max
The text "video_init" is misleading. Replace it by "video_idle".
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
When building Exynos boards, configure OF_UPSTREAM_VENDOR to build all
device trees in:
- "samsung/" for 32-bit ARM platforms.
- "exynos/" for 64-bit ARM platforms.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
With the support for common speed grade configuration added in commit
65a6b83a9b ("mach-k3: refactor A53 speed grade clock-rate fixup"),
this patch extends the support to AM64x SoCs.
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Enable the MMC command on the MediaTek MT8365 EVK. This is useful since
the primary boot device is an eMMC.
A few partition commands are also enabled since the mmc command alone
is not enough to read all partitions on the eMMC.
Signed-off-by: David Lechner <dlechner@baylibre.com>
- spi: stm32: OSPI and QSPI optimization
- Update stm32 clock drivers to restore boot for STM32MP13/STM32MP2
board family
- Add bootph-all in ltdc node in stm32mp257f-ev1-u-boot
- Use CONFIG_STM32MP15X to discern STM32MP15xx on DH STM32MP15xx DHSOM
- Reinstate missing SPL configs for DH STM32MP15xx DHSOM
- stm32mp2 boards: read boot index from backup register
- video: simple_panel: add support for "rocktech,rk043fn48h" display
- Add .of_to_plat callback in stm32_ltdc driver
This symbol is used on a number of PowerPC platforms as well, so make it
available there again.
Fixes: 424b324165 ("armv7: Add CPLD support via IFC to the ls1021a-iot board.")
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Following the 'commit 95b5a7de30 ("FWU: STM32MP1: Add support to
read boot index from backup register")', this patch enables reading
the boot index from backup registers on STM32MP2 platforms.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Re-enable missing configs for DH STM32MP15xx DHSOM, to allow those
devices to successfully boot again.
Signed-off-by: Marek Vasut <marex@nabladev.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Use plain CONFIG_STM32MP15X to discern code which is specific to
STM32MP15xx in DH STM32MP1 DHSOM board files.
Signed-off-by: Marek Vasut <marex@nabladev.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Drivers should extract device-tree data before probing via the
.of_to_plat hook.
Implement it for stm32_ltdc driver. No functional change.
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Add bootph-all property in ltdc node in stm32mp257f-ev1-u-boot.dtsi
to fix the following issue :
Video device 'display-controller@48010000' cannot allocate frame buffer
memory - ensure the device is set up beforen
stm32_rifsc bus@42080000: display-controller@48010000 failed to bind on
bus (-28)
stm32_rifsc bus@42080000: Some child failed to bind (-28)
initcall_run_r(): initcall initr_dm() failed
ERROR ### Please RESET the board ###
Fixes: 29ab19c2be ("Subtree merge tag 'v6.18-dts' of dts repo [1] into dts/upstream")
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
During clock's registration, clock's name are used to establish parent -
child relation. On STM32MP13 and STM32MP25, most of SCMI clocks are parent
clocks.
Since commit fdb1bffe28 ("clk: scmi: Postpone clock name resolution"),
all scmi clocks are named by default "scmi-%zu" until they are enabled,
it breaks clocks registration and boot process for STM32MP13/25
platforms.
Rework the STM32 core clock driver and STM32MP13/25 clock description
to use clock index instead of their real name.
Introduce struct clk_parent_data which allows to identify parent clock
either by index or by name. Name is only used for particular clocks
provided by IP which are clock provider as i2s/i2s_ckin, usb0/ck_usbo_48m,
and ltdc/ck_ker_ltdc.
STM32_GATE() and STM32_COMPOSITE_NOMUX macros are updated in order to
use parent clock index.
As STM32MP13 supports both SPL and SCMI boot, keep using an array
with clock's name for SPL.
Fixes: fdb1bffe28 ("clk: scmi: Postpone clock name resolution")
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Add SCMI clocks. These clocks are used as parent clocks and are
referenced by their rcc's node position in clk-stm32mp13.c
Fixes: fdb1bffe28 ("clk: scmi: Postpone clock name resolution")
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
FIFO accesses uses u8 only for read/write.
In order to optimize throughput, add u16 or u32 read/write
accesses when possible.
Set FIFO threshold level value accordingly.
Test performed by writing and reading 64MB on sNOR on
stm32mp157c-ev1 board:
before after ratio
Write : 428 KB/s 719 KB/s +68%
Read : 520 KB/s 3200 KB/s +615%
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
When WATCHDOG_RESET() was replaced by schedule() in commit
29caf9305b ("cyclic: Use schedule() instead of WATCHDOG_RESET()")
we not only reset the watchdog but also call the cyclic infrastructure
which takes time and has impact on read accesses performances.
Move schedule() from _stm32_qspi_read_fifo() to _stm32_qspi_poll()
and call schedule() only every 1MB chunk of data.
Test performed by reading 64MB on sNOR on stm32mp157c-ev1 board:
before after ratio
Read : 201 KB/s 520KB/s +258%
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Schedule() is called every u8/u16 or u32 read accesses which is overkill.
Move schedule() from stm32_ospi_read_fifo() to stm32_ospi_tx_poll()
and call schedule() only every 1MB chunk of data.
Test performed by reading 64MB on sNOR on stm32mp257f-ev1 board:
before after ratio
Read : 10.6MB/s 14.2MB/s +34%
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Pull request doc-2026-04-rc2
Documentation:
* describe QEMU VGA emulation
* development process
- Move the existing block about patch application
- Rework the custodian feedback section
- Explain when/how Custodians may edit patches
- Move Custodians section
- Make "Work flow of a Custodian" a subsection
- Document using b4 and patchwork for custodians
* develop: codingstyle: Update b4 external link
* develop: sending_patches: Update link to patchwork
Enable 32k crystal on the board. If external 32k source is not
used, 32k rc-osc comes into play, which is accurate to +-20%.
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Enable 32k crystal on the board. If external 32k source is not
used, 32k rc-osc comes into play, which is accurate to +-20%.
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Enable 32k crystal on the board. If external 32k source is not
used, 32k rc-osc comes into play, which is accurate to +-20%.
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Add a common helper function for doing the basic configuration
required for enabling the 32k crystal on some of the TI boards.
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
If realloc fails, list->strings was set to NULL and
it would create a leak. This commit ensures that if we cannot
add a string to the list, the list stays in a good state.
Signed-off-by: Francois Berder <fberder@outlook.fr>
It can be useful in xPL to access symbols from binman, such as the
offset/position and size of a binman entry.
Place these binman symbols together at the end of the xPL binary for
ARMv8, similar to ARM and RISC-V.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Simon Glass <simon.glass@canonical.com>
