Do not try to create an initrd device path nor try to register
an initrd with the EFI_LOAD_FILE2_PROTOCOL if none is provided.
Handle initrd installation in efi_binary_run_dp with
efi_install_initrd, imitating what is done for the fdt.
Fixes: 36835a9105 ("efi_loader: binary_run: register an initrd")
Reported-by: Weizhao Ouyang <o451686892@gmail.com>
Signed-off-by: Adriano Cordova <adriano.cordova@canonical.com>
Tested-by: Weizhao Ouyang <o451686892@gmail.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
At the moment a mixture of ifdef(CONFIG_IS_ENABLED) and
CONFIG_IS_ENABLED(SPI_FLASH_BAR) is used in the spi-nor framework.
This leads to misbehaviour in the SPL as there is no Kconfig option
CONFIG_SPL_SPI_FLASH_BAR. This commit standardizes the use of
CONFIG_SPI_FLASH to get SPLs that load U-Boot proper from the
SPI flash to work again.
Fixes: 9bb02f7 (mtd: spi-nor: Fix the spi_nor_read() when config SPI_STACKED_PARALLEL is enabled)
Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
The LMB memory region attributes flags are used to specify the
behaviour of the memory regions with respect to allocations -- for
e.g. it is allowed to re-allocate a memory region already reserved
with the LMB_NONE flag. The flags use values with different bit
positions through the BIT() macro. Move the LMB_NOMAP value to bit
position 1, and also move the other flags accordingly. Using bit
position 0 for LMB_NOMAP results in the logic in
lmb_print_region_flags() to break, which prints an incorrect value for
the regions with LMB_NOMAP atribute.
Fixes: 3d56c06551 ("lmb: Move enum lmb_flags to a u32")
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
We have improvements to the reliability of H6 and H616 DRAM
initialisation, hopefully avoiding those occasional size misdetections
many people reported before.
Also there is some modernisation of the USB PHY code, to use DT provided
regulators and GPIOs, instead of relying on this being badly duplicated
in Kconfig. This also happens to fix broken USB operations for older
boards (using the A20 SoCs, for instance), which were clashing over
grabbing some GPIOs, leading to a driver bailout. There is also some
rework of the H6/H616 SPL clock code, to prepare it for being reused by
the upcoming Allwinner A523 support. This drops the usage of C structs
to model MMIO register frames, and replaces them by using an addition of
the base address with a macro defined offset. Also in preparation for
A523 there is one fix and one addition for the FEL code, to prepare for
the GICv3 interrupt controller that the new SoC uses. And since this is
a simple fix, and was ready, there is also the watchdog driver for that
new SoC. Finally tossing in an easy fix to some H616 defconfig files to
enable eMMC.
I also use the opportunity to enable proper page table protection
(observing read-only and no-execute attributes), support for which the
arm64 port recently gained. I didn't spot any issues on my arm64 board
tests, but it can be easily disabled or backed out again in case any
issues arise.
Full support for the two new SoC series (A133 and A523) we are working
on is not quite ready yet, but might follow still a bit later if
progress permits.
CI passed, and boot-tested on at least one board with a H616, H6, A64,
H3, A20, T113s.
Now that this functionality is modeled using the device tree and
regulator uclass, the named GPIO is not referenced anywhere. Remove
it, along with the rest of the support for AXP virtual GPIOs.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
enable text based default U-Boot Environment by enabling
CONFIG_ENV_SOURCE_FILE
and adding default environment file:
board/siemens/capricorn/capricorn_cxg3.env
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Walter Schweizer <walter.schweizer@siemens.com>
Pass the clock controller udevice into clk_register_composite(),
so it can be passed further to any registered composite clocks
and used for look up of parent clock referenced in DT "clocks"
and "clock-names" properties by phandle and name pair.
Use the clock controller udevice in imx8m_clk_mux_set_parent()
to perform accurate look up of parent clock referenced in the
CCM driver by name. If the clock name that is being looked up
matches one of the names listed in the clock controller DT node
"clock-names" array property, then the offset of the name is
looked up in the "clocks" DT property and the phandle at that
offset is resolved to the parent clock udevice. The test to
determine whether a particular driver instance registered with
clock uclass matches the parent clock is done by comparing the
OF nodes of the clock registered with clock uclass and parent
clock resolved from the phandle.
Example:
drivers/clk/imx/clk-imx8mm.c:
static const char * const imx8mm_a53_sels[] = {"osc_24m", "arm_pll_out", ...
_____________|
arch/arm/dts/imx8mm.dtsi: |
clk: clock-controller@30380000 { v
clock-names = "osc_32k", "osc_24m", ...
|
v
clocks = <&osc_32k>, <&osc_24m>, ...
}; _______________________|
... |
/ { v
osc_24m: clock-osc-24m {
compatible = "fixed-clock";
...
};
Signed-off-by: Marek Vasut <marex@denx.de>
Reported-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Tested-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Adam Ford <aford173@gmail.com> # imx8mp-beacon
It is very surprising that such an uclass, specifically designed to
handle resources that may be shared by different devices, is not keeping
the count of the number of times a power domain has been
enabled/disabled to avoid shutting it down unexpectedly or disabling it
several times.
Doing this causes troubles on eg. i.MX8MP because disabling power
domains can be done in recursive loops were the same power domain
disabled up to 4 times in a row. PGCs seem to have tight FSM internal
timings to respect and it is easy to produce a race condition that puts
the power domains in an unstable state, leading to ADB400 errors and
later crashes in Linux.
Some drivers implement their own mechanism for that, but it is probably
best to add this feature in the uclass and share the common code across
drivers. In order to avoid breaking existing drivers, refcounting is
only enabled if the number of subdomains a device node supports is
explicitly set in the probe function. ->xlate() callbacks will return
the power domain ID which is then being used as the array index to reach
the correct refcounter.
As we do not want to break existing users while stile getting
interesting error codes, the implementation is split between:
- a low-level helper reporting error codes if the requested transition
could not be operated,
- a higher-level helper ignoring the "non error" codes, like EALREADY and
EBUSY.
CI tests using power domains are slightly updated to make sure the count
of on/off calls is even and the results match what we *now* expect. They
are also extended to test the low-level functions.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Add support for booting from USB pen drive, since USB host
port is available on the STM32MP2.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
For nor0 boot for the STMicroelectronics boards, the bootfs
is found in SD-Card = mmc0 for nor0 boot.
Introduce a new file configuration file stm32mp25_st_common.h
to manage this specific behavior for the STMicroelectronics
boards; change the boot order for nor0 boot and don't use
the default DISTRO order define in BOOT_TARGET_DEVICES:
mmc1, ubifs, mmc0, mmc2.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice CHOTARD <patrice.chotard@foss.st.com>
Add support of UBI boot and activate the needed
configuration for U-Boot environment in UBI volume for
NAND or in a MTD partition for NOR device, SPI Flash:
ENV_OFFSET, ENV_OFFSET_REDUND, ENV_SECT_SIZE is
aligned with the default MTD partition on NOR device
of the STMicroelectronics boards.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Handle boot for the 3 instance of MMC and call the command stm32prog
for serial boot on USB or on UART as it is done for other STM32MP platform.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Enable OF_UPSTREAM flag for STM32F7 platforms.
Use upstream device tree for DSI and LTDC nodes,
As now in upstream DT, in panel@0 node, power-supply property is
present, which is a fixed-regulator, add DM_REGULATOR_FIXED flag
for stm32f769-disco boards.
Set also DEFAULT_FDT_FILE in defconfigs and use it in stm32f746-disco.h
to indicate which FDT file to load (All STM32F7 boards are using this
file).
If something is missing, it must be added in upstream device tree
in linux kernel ("px_clk" for DSI by example).
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This patch adds am654_sdhci_set_control_reg to am654_sdhci.
This is required to fix UHS_MODE_SELECT for TI K3 boards.
If any of HIGH_SPEED_ENA, V1P8_SIGNAL_ENA, UHS_MODE_SELECT
are set, then data will be launched on the pos-edge of the
clock.
Since K3 SoCs did not meet timing requirements for High Speed
SDR mode at rising clock edge, none of these three should be
set, therefore limit UHS_MODE_SELECT to only be set for modes
above MMC_HS_52.
This fixes MMC write issue on am64x evm at mode High Speed
SDR.
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
u-boot-dfu-20250425
Usb gadget:
- Fix ACM gadget release
- Allow ACM gadget restart after releasing it
- Add 'enabled' flag to usb_ep structure
DFU:
- Fix alt buffer clearing for DeveloperBox board
Jerome Forissier <jerome.forissier@linaro.org> says:
This series introduces threads and uses them to improve the performance
of the USB bus scanning code and to implement background jobs in the
shell via two new commands: 'spawn' and 'wait'.
The threading framework is called 'uthread' and is inspired from the
barebox threads [2]. setjmp() and longjmp() are used to save and
restore contexts, as well as a non-standard extension called initjmp().
This new function is added in several patches, one for each
architecture that supports HAVE_SETJMP. A new symbol is defined:
HAVE_INITJMP. Two tests, one for initjmp() and one for the uthread
scheduling, are added to the lib suite.
After introducing threads and making schedule() and udelay() a thread
re-scheduling point, the USB stack initialization is modified to benefit
from concurrency when UTHREAD is enabled, where uthreads are used in
usb_init() to initialize and scan multiple busses at the same time.
The code was tested on arm64 and arm QEMU with 4 simulated XHCI buses
and some devices. On this platform the USB scan takes 2.2 s instead of
5.6 s. Tested on i.MX93 EVK with two USB hubs, one ethernet adapter and
one webcam on each, "usb start" takes 2.4 s instead of 4.6 s.
Finally, the spawn and wait commands are introduced, allowing the use of
threads from the shell. Tested on the i.MX93 EVK with a spinning HDD
connected to USB1 and the network connected to ENET1. The USB plus DHCP
init sequence "spawn usb start; spawn dhcp; wait" takes 4.5 seconds
instead of 8 seconds for "usb start; dhcp".
[1] https://patchwork.ozlabs.org/project/uboot/list/?series=446674
[2] https://github.com/barebox/barebox/blob/master/common/bthread.c
Link: https://lore.kernel.org/r/20250418141114.2056981-1-jerome.forissier@linaro.org
Make the schedule() call from the CYCLIC framework a uthread scheduling
point too. This makes sense since schedule() is called from a lot of
places where uthread_schedule() needs to be called.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Add struct uthread_mutex and uthread_mutex_lock(),
uthread_mutex_trylock(), uthread_mutex_unlock() to protect shared data
structures from concurrent modifications.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Add a new internal API called uthread (Kconfig symbol: UTHREAD) which
provides cooperative multi-tasking. The goal is to be able to improve
the performance of some parts of U-Boot by overlapping lengthy
operations, and also implement background jobs in the U-Boot shell.
Each uthread has its own stack allocated on the heap. The default stack
size is defined by the UTHREAD_STACK_SIZE symbol and is used when
uthread_create() receives zero for the stack_sz argument.
The implementation is based on context-switching via initjmp()/setjmp()/
longjmp() and is inspired from barebox threads [1]. A notion of thread
group helps with dependencies, such as when a thread needs to block
until a number of other threads have returned.
The name "uthread" comes from "user-space threads" because the
scheduling happens with no help from a higher privileged mode, contrary
to more complex models where kernel threads are defined. But the 'u'
may as well stand for 'U-Boot' since the bootloader may actually be
running at any privilege level and the notion of user vs. kernel may
not make much sense in this context.
[1] https://github.com/barebox/barebox/blob/master/common/bthread.c
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Add the HAVE_INIJMP symbol to be set by architectures that support
initjmp(), a non-standard extension to setjmp()/longjmp() allowing to
initialize a jump buffer with a function pointer and a stack pointer.
This will be useful to later introduce threads. With this new function
it becomes possible to longjmp() to a particular function pointer
(rather than to a point previously reached during program execution as
is the case with setjmp()), and with a custom stack. Both things are
needed to spin off a new thread. Then the usual setjmp()/longjmp() pair
is enough to save and restore a context, i.e., switch thread.
Add the initjmp() prototype to <include/setjmp.h> since it is common to
all architectures.
Add an entry to the API documentation: doc/api/setjmp.rst.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
- Introducing back send_init_stream for omap_hsmmc
to perform the 74 clocks cycle sequence
- Move scmi regulator subnode hack to scmi_regulator
- Typo fix
The ROC-RK3576-PC is a SBC made by Firefly, designed around the RK3576
SoC. This adds the needed board infrastructure and config for it.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The Rockchip RK3576 is a ARM-based SoC with quad-core Cortex-A72
and quad-core Cortex-A53 including 6TOPS NPU, Mali-G52 MC3, HDMI Out,
DP, eDP, MIPI DSI, MIPI CSI2, LPDDR4/4X/5, eMMC5.1, SD3.0/MMC4.5, UFS,
USB OTG 3.0, Type-C, USB 2.0, PCIe 2.1, SATA 3, Ethernet, SDIO3.0, I2C,
UART, SPI, GPIO and PWM.
Add arch core support for it.
Signed-off-by: Xuhui Lin <xuhui.lin@rock-chips.com>
[adapted for mainline u-boot]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Rockchip RK3528 is a ARM-based SoC with quad-core Cortex-A53.
Add initial arch support for the RK3528 SoC.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Ensure rk3588_common.h can be used by boards directly by defining a
blank ROCKCHIP_DEVICE_SETTINGS unless it already is defined.
Add a default SYS_CONFIG_NAME to include rk3588_common.h unless a board
target overrides it in its board Kconfig.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Ensure rk3568_common.h can be used by boards directly by defining a
blank ROCKCHIP_DEVICE_SETTINGS unless it already is defined.
Add a default SYS_CONFIG_NAME to include rk3568_common.h unless a board
target overrides it in its board Kconfig.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Ensure ROCKCHIP_DEVICE_SETTINGS is defined before including
rk3588_common.h in board include/configs files.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Ensure ROCKCHIP_DEVICE_SETTINGS is defined before including
rk3568_common.h in board include/configs files.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The partitions env variable is using an outdated partition layout that
is typically expected to be used with older vendor miniloader blobs.
Rockchip devices will run fine using any partition layout if the first
16 MiB of MMC storage is ignored/skipped.
Remove the partitions env variable to stop encourage users a continued
use of this outdated partition layout on RK3588 devices.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The partitions env variable is using an outdated partition layout that
is typically expected to be used with older vendor miniloader blobs.
Rockchip devices will run fine using any partition layout if the first
16 MiB of MMC storage is ignored/skipped.
Remove the partitions env variable to stop encourage users a continued
use of this outdated partition layout on RK356x devices.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
In order to be able to use Device Tree Overlays, the fdtoverlay_addr_r
needs to be specified.
Follow what's been done for other Rockchip SoCs and leave 1MiB for the
base DTB before the address for the overlay.
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Make the do_ping() function in cmd/net.c a global one by getting rid of
the static qualifier, and move the prototype declaration from net-lwip.h
to net-common.h. This makes the function available to other parts of
U-Boot when CONFIG_NET=y, as was already the case when
CONFIG_NET_LWIP=y.
This is a peparation step to make the sandbox tests use a common API
between NET and NET_LWIP.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Implement net_start_again() when NET_LWIP=y in a very similar way to
NET. This will be used in a future commit to determine if a failed
ping needs to be tried again on a different interface.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
The things that are done prior to executing a network command with
NET_LWIP are not consistent with what is done with NET. It impacts the
selection of the current device, and more precisely if the active device
is invalid NET would return an error while NET_LWIP would try to pick a
new device. This incorrect behavior was detected thanks to the eth_rotate
sandbox test (dm_test_eth_rotate()).
Fix it by re-using a sequence similar to what NET has in net_loop().
This piece of code is inserted in a function called net_lwip_eth_start()
renamed from net_lwip_eth_set_current().
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
In IPv6, the broadcast MAC address is not used. Instead, it should use
the multicast address (see RFC RFC2464).
Add IPV6_ALL_NODE_ETH_ADDR macro for clarity.
Signed-off-by: Sean Edmond <seanedmond@microsoft.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
f_acm calls usb_ep_disable(f_acm->ep_notify) unconditionally in
acm_start_ctrl(), even if the USB endpoint was never enabled before. This
causes crashes for some UDC drivers (e.g. ci_udc), because they dereference
data structures that are assigned only after having called usb_ep_enable().
The f_acm driver in U-Boot is similar to the Linux driver, where this issue
does not occur because usb_ep_disable() and usb_ep_enable() internally
track the enabled state. In Linux this change was made in commit
b0bac2581c19 ("usb: gadget: introduce 'enabled' flag in struct usb_ep") by
Robert Baldyga.
Fix the crashes for f_acm by making the same change in U-Boot. This makes
the API less bug-prone and avoids introducing crashes when adapting new
gadget drivers from Linux.
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://lore.kernel.org/r/20250407-acm-fixes-v1-3-e3dcb592d6d6@linaro.org
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Add a new callback function *send_init_stream* which start a sequence of
at least 74 clock cycles.
The mmc core uses *mmc_send_init_stream* in order to invoke the callback
function. This will be used during power cycle where the specification
requires such a sequence after power up.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Jiaxun Yang <jiaxun.yang@flygoat.com> says:
This is a huge series which promoted MIPS/Boston target into a
usable state, with fixes to drivers and general framework issues
I found in this process.
I also converted the target to OF_UPSTREAM.
This target is covered by QEMU, to test on QEMU:
```
make boston64r6el_defconfig
make
qemu-system-mips64el -M boston -cpu I6500 -bios ./u-boot.bin -nographic
```
Link: https://lore.kernel.org/r/20240517-boston-v3-0-1ea7d23f4a1d@flygoat.com
Ensure that we are using correct physical/virtual address for
DMA buffer write and hardware register settings.
The convention is: in ahci_ioports all pointers are virtual,
that will be converted to physical address when writing to
hardware registers or into sg/cmd_tbl.
Also fixed 64bit physical address support for dwc_ahsata, ensure
higher bits are written into registers/sg properly.
Use memalign for allocating aligned buffer in dwc_ahsata so we
don't have to do our own alignment in driver.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
This pull request contains updates for the SoCFPGA platform, targeting
the 2025.07 release cycle. Highlights include enhancements to Agilex5
support, improvements in DDR error handling, and bridge reset handling
for SoC64 devices.
Key updates:
Agilex5 platform enhancements:
* New MMU region mappings and memory layout updates using
LMB_ARCH_MEM_MAP.
* Fixes for bloblist configuration, kernel FIT image generation, and
VAB flow enablement.
* GPIO pin control added for SDIO selection.
* Marvell PHY driver enabled in defconfig.
Agilex5 / SoC64 DDR subsystem:
* Added ECC debug improvements for IOSSM.
* Introduced LPDDR inline ECC support.
* Resolved size calculation overflow in memory driver.
SoC64 improvements:
* Enhanced mailbox communication with the SDM to reflect various
boot stage transitions.
* Implemented F2S bridge reset support and updated related reset
manager registers.
* Expanded SoC64 CPU info reporting.
General maintenance:
* Additional peripherals released from reset for Arria10.
* Cleanup of legacy or incorrect Kconfig implications.
This patch set has been tested on Agilex 5 devkit.
Passing all pipeline tests at:
https://source.denx.de/u-boot/custodians/u-boot-socfpga/-/pipelines/25867
Add reset manager registers in preparation for F2S bridge reset
support as well as the mask support to enable/disable the bridges.
Mask value:
BIT0: soc2fpga
BIT1: lwhps2fpga
BIT2: fpga2soc
These bridges are available only in Stratix10:
BIT3: f2sdram0
BIT4: f2sdram1
BIT5: f2sdram2
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
Implement exfat_fs_rename() to rename or move files. This is used
by the 'mv' generic FS interface command. The rename implementation
for other filesystems was added recently and was not part of exfat
porting layer due to merge issue, which made 'mv' command crash,
fix this by adding the missing implementation.
Fixes: b86a651b64 ("fs: exfat: Add U-Boot porting layer")
Signed-off-by: Marek Vasut <marex@denx.de>
