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Manorit Chawdhry <m-chawdhry@ti.com> says:
It has done a re-write of the full driver and the commits aren't split
to keep the bisectability intact.
Boot Logs: https://gist.github.com/manorit2001/1eaba109d722715a233244da693133d3
Link: https://lore.kernel.org/r/20241121-b4-upstream-pll-fix-v1-0-904f618897a7@ti.com
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Based on the recommendation from HW team make modifications to
the sequence for more robustness.
- Unlock the PLL registers
- Enable external bypass
- Disable the PLL
- Program pllm and pllf
- Program Ref divider
- Enable other PLL controls like DSM_EN, DAC_EN,etc
- Enable calibration if available
- Enable PLL
- Wait for PLL lock and Calibration lock
- Remove external bypass
Re-write the full sequence from scratch as the previous sequence was way
off and keep it in a single commit for bisectability.
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
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base is more appropriate for the usage as the variable stores the base
address and seems more accurate w.r.t reg. Change reg to base.
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
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Those debug() calls might be useful, but beware. They can cause the DDR
controller to hang if we do not run the sequence quickly enough.
They usually are not an issue with upstream U-Boot and the default DDR
config, but they have become troublesome with custom DDR configs.
Drop those debug() statements that shouldn't be present in
time-sensitive code, to avoid anyone else falling into the trap.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
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implementation"
Christian Marangi <ansuelsmth@gmail.com> says:
This series is split in 2 part.
While adapting the LED boot and activity code to the new property
accepted by Rob in dt-schema repository, a big BUG was discovered.
The reason wasn't clear at start and took me some days to figure it
out.
This was triggered by adding a new phandle in the test.dts to
introduce test for the new OPs.
This single addition caused the sandbox CI test to fail in the
dm_test_ofnode_phandle_ot test.
This doesn't make sense as reverting the change made the CI test
to correctly finish. Also moving the uboot node down
after the first phandle (in test.dts the gpio one) also made
the CI test to correctly finish.
A little bit of searching and debugging made me realize the
parse phandle OPs didn't support other.dts at all and they
were still referencing phandle index from test.dts.
(more info in the related commit)
In short the test was broken all along and was working by
pure luck. The first 4 patch address and fix the problem for good.
The other 4 patch expand and address the property change for
LED boot/activity.
Posting in a single series as changes are trivial and just
to speedup review process. (and also because the second
part depends on the first)
All CI tested with azure pipeline.
Link: https://lore.kernel.org/r/20241110115054.2555-1-ansuelsmth@gmail.com
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Update LED boot/activity to reference by phandle instead of label and
add to period property the "-ms" suffix.
This is a followup request by dt-schema maintainers that required LED
node to be referenced by a phandle to the node instead of indirectly by
the LED label and for timevalue to have a suffix.
While at it generalize the LED node label parsing since the logic is
common for generic LED bind and LED activity/boot.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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Implement ofnode_options phandle helper to get an ofnode from a phandle
option in /options/u-boot.
This helper can be useful since new DT yaml usually require to link a
phandle of a node instead of referencing it by name or other indirect
way.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Implement ofnode/tree_parse_phandle() helper as an equivalent of
of_parse_phandle to handle simple single value phandle.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Implement oftree variant of parse_phandle OPs.
There is currently a very hidden and laten BUG with parse_phandle OPs
that doesn't permit the support of multiple DTS in a system. One usage
example if sandbox with the usage of other.dts
The BUG is only present on live scenario where of_... OPs are used and
it's not present when fdt... OPs are used.
This is caused by an assumption made in __of_parse_phandle_with_args,
with the of_find_node_by_phandle call that pass the first arg as NULL.
This makes of_find_node_by_phandle use the default root node of the
system and doesn't permit the usage of alternative tree. This is correct
for normal system and also for the linux kernel where it's assumed a
single device tree.
It's problematic if other device tree needs to be used.
To fix this, introduce __of_root_parse_phandle_with_args to define a
root device tree for of_find_node_by_phandle.
Introduce all the variant OPs for this and in ofnode, the oftree OPs
following how it's done for other OPs with similar task.
For FDT scenario, ofnode_from_fdtdec_phandle_args is reworked to accept
a new variable, node and noffset_to_ofnode is used instead of
offset_to_ofnode. This is required to support multiple FDB blob to
calculate the correct of_offset of the ofnode.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Aniket Limaye <a-limaye@ti.com> says:
This series adds OPP_LOW spec data in k3_avs driver and enables a config
option to select the OPP_LOW performance point.
J7200 SOC supports OPP_LOW and OPP_NOM as two Operating Performance
Points as per (7.5 Operating Performance Points) section in the
Datasheet [0].
- A72SS/MSMC at 2 GHz/1GHz operation must use OPP_NOM.
- A72SS/MSMC at 1 GHz/500 MHz operation can use OPP_NOM or OPP_LOW
voltage (though OPP_LOW voltage is recommended to reduce power
consumption).
The actual OPP voltage for the device is read from the efuse and
updated in k3_avs_probe().
The default j7200 devicetree and k3_avs driver set OPP_NOM spec
frequency and voltage.
In the board init file, if K3_OPP_LOW config is enabled, Check if
OPP_LOW AVS voltage read from efuse is valid and update frequency (A72
and MSMC) and voltage (VDD_CPU) as per the OPP_LOW spec.
[0]: https://www.ti.com/lit/gpn/dra821u (J7200 Datasheet)
Test logs:
https://gist.github.com/aniket-l/328ad93ed60c2419ed7be9f85e6b6075
- With series applied on master and CONFIG_K3_OPP_LOW enabled in
j7200_evm_r5_defconfig
- Logs shown with and without efuse register programmed for OPP_0
(Errors out if OPP_0 not found, programs OPP_LOW spec if found)
- Voltage update verified using 'i2c md 0x4c 0xe' in u-boot
- Frequency update verified using 'k3conf clock dump' in linux
Link: https://lore.kernel.org/r/20241119003617.1871183-1-a-limaye@ti.com
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k3_avs driver checks opp_ids when probing and overwrites the voltage
values in vd_data for the respective board. The new k3_avs_check_opp()
can be called from board files to check the efuse data and returns 0 if
valid.
Also add the same check in k3_avs_program_voltage() to error out if
the efuse data was not valid.
Signed-off-by: Reid Tonking <reidt@ti.com>
Signed-off-by: Aniket Limaye <a-limaye@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
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J7200 SOC supports OPP_LOW and OPP_NOM as two Operating Performance
Points as per (7.5 Operating Performance Points) section in the
Datasheet [0].
- A72SS/MSMC at 2 GHz/1GHz operation must use OPP_NOM.
- A72SS/MSMC at 1 GHz/500 MHz operation can use OPP_NOM or OPP_LOW
voltage (though OPP_LOW voltage is recommended to reduce power
consumption).
Add OPP_LOW frequency->voltage entry to vd_data.
The actual OPP voltage for the device is read from the efuse and
updated in k3_avs_probe().
OPP_NOM corresponds to OPP_1 and OPP_LOW to OPP_0 efuse register
fields, as described in the Datasheet [0]
The register offsets and fields are described in the TRM (5.2.6.1.5
WKUP_VTM_VD_OPPVID_j Register) [1].
[0]: https://www.ti.com/lit/gpn/dra821u (J7200 Datasheet)
[1]: https://www.ti.com/lit/pdf/spruiu1 (J7200 TRM)
Signed-off-by: Reid Tonking <reidt@ti.com>
Signed-off-by: Aniket Limaye <a-limaye@ti.com>
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not implmentated
Currently in _dm_gpio_set_flags() when set_flags ops is not implemented
direction_output()/_input() is used, but pull up/down is not supported by
these ops.
Signed-off-by: Zixun LI <admin@hifiphile.com>
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Avoid crashing U-Boot when the GPIO controller for a button is disabled
or failed to probe. We also need to check the priv data for each button
since even if a button fails to probe it will still be polled by the
core code.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
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The ST M24256E behaves as a regular M24C256, except for the E variant
which uses up another I2C address for Additional Write lockable page.
This page is 64 Bytes long and can contain additional data. Add entry
for it, so users can describe that page in DT. Note that users still
have to describe the main M24C256 area separately as that is on separate
I2C address from this page.
Unlike M24C32-D and M24C64-D, this part is specifically ST and does not
have any comparable M24* counterparts from other vendors, hence the st,
vendor prefix. Furthermore, the part name is M24256E without C between
the 24 and 256, this is not a typo. Finally, there is M24C256-D part,
which does contain 32 Bytes long Additional Write lockable page, which
is a different part and not supported by this patch.
Datasheet: https://www.st.com/resource/en/datasheet/m24256e-f.pdf
From Linux kernel commit:
339cb28b9ee6 ("eeprom: at24: add ST M24256E Additional Write lockable page support")
Signed-off-by: Marek Vasut <marex@denx.de>
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https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze into next
AMD/Xilinx changes for v2025.04-rc1
binman:
- Separate binman description from main DT
zynqmp:
- Enable binman for ZynqMP platforms
- DT sync with Linux v6.12
- Update usb5744 hub for SOMs
common:
- Drop SPL_FIT_GENERATOR support
versal2
- Enable OPTEE layers
ospi:
- Refactor the flash reset functionality
pytest:
- Fix tcminit mode handling
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Tom Rini <trini@konsulko.com> says:
Hey all,
This is picking up Simon's v5 of the above-named series and making a few
more changes so that the follow-up series I have leads to arm64 being
supported for almost all jobs. To quote Simon's cover letter:
All gitlab runners are currently amd64 machines. This series attempts to
create a docker image which can also support arm64 so that sandbox tests
can be run on it.
The TARGET_... environment variables for grub could perhaps be adjusted,
using the new variables, but I have not done that for now.
Adding to what Simon said, we now build grub for all architectures as
the reason to install it was to be able to use the binaries in QEMU.
That won't provide us with amd64 binaries on arm64 hosts so we can't use
that shortcut anymore.
Link: https://lore.kernel.org/r/20241127172247.1488685-1-trini@konsulko.com
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The cache-flush function is incorrect which causes a crash in the
remoteproc tests with arm64.
Fix both problems by using map_sysmem() to convert an address to a
pointer and map_to_sysmem() to convert a pointer to an address.
Also update the image-loader's cache-flushing logic.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 3286d223fd7 ("sandbox: implement invalidate_icache_all()")
Acked-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Changes in v6:
- Re-introduce
Changes in v2:
- Drop message about EFI_LOADER
arch/sandbox/cpu/cache.c | 8 +++++++-
drivers/remoteproc/rproc-elf-loader.c | 18 +++++++++++-------
lib/efi_loader/efi_image_loader.c | 3 ++-
3 files changed, 20 insertions(+), 9 deletions(-)
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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As the flash reset is handled in spi nor core, removing the
flash reset functionality. As the configuration like tristate
and hysterisis need to be enabled by the cdo. Handle the flash
reset only for mini u-boot case.
Rename the "cadence_qspi_versal_flash_reset" to generic name
"cadence_qspi_flash_reset" as this can be used by other platforms
as well.
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20241108063537.13180-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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Always probing pmecc in the generic nand controller probe function and
bailing out if pmecc is missing, prevents the driver to be usable for
SoCs which do not have a pmecc hardware ecc engine like older sam9 SoCs,
for example at91sam9g20. Tested on sam9x60 that the call, which the
comment was moved to, is sufficient to probe the pmecc.
Signed-off-by: Alexander Dahl <ada@thorsis.com>
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Add ops get_dir_flags() to read status from GPIO registers.
Signed-off-by: Zixun LI <admin@hifiphile.com>
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Support GPIO configuration with following flags:
- in, out, out_active
- open_drain, pull_up
Signed-off-by: Zixun LI <admin@hifiphile.com>
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This patch adds support for determining whether a gpio pin is mapped as
peripheral function.
Signed-off-by: Zixun LI <admin@hifiphile.com>
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The bad CRC error message has transposed characters, which render the
output useless:
"bad CRC at record 213: #08x, not #08x" instead of
"bad CRC at record 213: #00000000, not #4be31f4d"
Fix the error message.
Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
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probing on capricorn board (imx8qxp based) brings:
Can't find FEC0 clk rate: -19
Cause is that when probing fec_mxc driver, fec_mii_setspeed()
is called which calls fec_get_clk_rate().
fec_mii_setspeed() calls fec_get_clk_rate with NULL pointer
for udev and so as in IMX8QXP case CLK_CCF is enabled
udev gets searched with:
uclass_get_device_by_seq(UCLASS_ETH, idx, &dev);
but we do not have yet a UCLASS_ETH ! as we just probing it!
Prevent this by passing udev to fec_get_clk_rate()
Signed-off-by: Heiko Schocher <hs@denx.de>
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Driver for a PMIC watchdog timer controlled via Siemens SCU firmware
extensions. Only useful on some Siemens i.MX8-based platforms as
special SCFW is needed which provides the needed SCU API.
Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Stefan Roese <sr@denx.de>
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Prepare v2025.01-rc3
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https://source.denx.de/u-boot/custodians/u-boot-usb
- Fix two issues with the asix88179 driver
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Fix missed rename from SPI_ADVANCE to SPI_STACKED_PARALLEL. This fixes
an issue encountered while testing the Zynq-7000 QSPI parallel Flash
implementation.
Fixes: f896aa656774 ("mtd: spi-nor: Rename SPI_ADVANCE to SPI_STACKED_PARALLEL")
Reviewed-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Dominik Wernberger <dominik.wernberger@gmx.de>
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The ASIX 88179A drops packets when receiving fragmented packets larger
than the MTU size due to an insufficient URB buffer size. This change
synchronizes the URB buffer size with the configuration used in the
Linux kernel, resolving the packet drop issue.
To reproduce the issue, set the following configuration:
CONFIG_IP_DEFRAG=y
CONFIG_TFTP_BLOCKSIZE=16352
Then, run the `tftp` command. It will fail with a timeout error:
U-Boot> tftp zero.bin
Using ax88179_eth device
TFTP from server 10.0.0.196; our IP address is 10.0.0.18
Filename 'zero.bin'
Load address: 0x10000000
Loading: T T T T T T T T T T T
Retry count exceeded; starting again
Signed-off-by: Khoa Hoang <admin@khoahoang.com>
Reviewed-by: Marek Vasut <marex@denx.de>
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The ASIX AX88179A locks up when the ADVERTISE_NPAGE bit is set in the
MII_ADVERTISE register, suggesting that this feature may be broken or
unsupported on this chip. In the Linux kernel, this bit is not set,
and enabling it also causes the PHY to lock up and stay in a
link-down state.
Additionally, the AX88179 and AX88179A variants do not appear to
support the ADVERTISE_LPACK bit, as setting it consistently reads
back as 0.
This patch removes the ADVERTISE_NPAGE and ADVERTISE_LPACK bits from
the MII_ADVERTISE register configuration. It also resets the PHY
before modifying the MII_ADVERTISE register, then restarts
auto-negotiation, following the same flow used in the U-Boot asix.c
driver.
Signed-off-by: Khoa Hoang <admin@khoahoang.com>
Reviewed-by: Marek Vasut <marex@denx.de>
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Janne Grunau <j@jannau.net> says:
Starting with v2024.10 dev_iommu_dma_unmap calls during device removal
trigger a NULL pointer dereference in the Apple dart iommu driver. The
iommu device is removed before its user. The sparsely used DM_FLAG_VITAL
flag is intended to describe this dependency. Add it to the driver.
Adding this flag is unfortunately not enough since the boot routines
except the arm one simply remove all drivers. Add and use a new function
which calls
dm_remove_devioce_flags(DM_REMOVE_ACTIVE_ALL | DM_REMOVE_NON_VITAL);
dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
to ensure this order dependency is head consistently.
Link: https://lore.kernel.org/r/20241123-iommu_apple_dart_ordering-v2-0-cc2ade6dde97@jannau.net
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This replaces dm_remove_devices_flags() calls in all boot
implementations to ensure non vital devices are consistently removed
first. All boot implementation except arch/arm/lib/bootm.c currently
just call dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL). This can result
in crashes when dependencies between devices exists. The driver model's
design document describes DM_FLAG_VITAL as "indicates that the device is
'vital' to the operation of other devices". Device removal at boot
should follow this.
Instead of adding dm_remove_devices_flags() with (DM_REMOVE_ACTIVE_ALL |
DM_REMOVE_NON_VITAL) everywhere add dm_remove_devices_active() which
does this.
Fixes a NULL pointer deref in the apple dart IOMMU driver during EFI
boot. The xhci-pci (driver which depends on the IOMMU to work) removes
its mapping on removal. This explodes when the IOMMU device was removed
first.
dm_remove_devices_flags() is kept since it is used for testing of
device_remove() calls in dm.
Signed-off-by: Janne Grunau <j@jannau.net>
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Avoids NULL pointer dereferences in apple_dart_unmap when the iommu
device is removed before its user. U-boot's device model does not track
dependencies between devices.
Observed on a M1 Ultra Mac Studio with v2024.10.
Acked-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Janne Grunau <j@jannau.net>
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https://source.denx.de/u-boot/custodians/u-boot-snapdragon
CI: https://source.denx.de/u-boot/custodians/u-boot-snapdragon/-/pipelines/23474
- UFS support is enabled for SC7280 and SM8150 platforms.
- Qualcomm dt-bindings headers are all dropped in favour of
dts/upstream.
- The SMMU driver now correctly handles stream ID 0 and is disabled in
EL2.
- Initial support for capsule updates (using the new dynamic UUIDs) is
added for the RB3 Gen 2 board alongside a new SCSI backend for DFU.
- CONFIG_PINCONF is enabled in qcom_defconfig.
- The vqmmc supply is now enabled for sdcard support on boards that need
it.
- A quirk is added for reading GPIOs on the PM8550 PMIC
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We only need to configure the SMMU when running in EL1. In EL2 the
hypervisor isn't running so peripherals can just do DMA as they wish.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
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It turns out this is a very real stream ID. Who woulda thought?
Drop the 0 check on the SID, there's no reason for it to be there in the first
place.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
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This is extremely similar to the MMC backend, but there are some notable
differences.
Works with a DFU string like
scsi 4=u-boot-bin part 11
Where "4" is the SCSI dev number (sequential LUN across all SCSI devices)
and "11" is the partition number.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Acked-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
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Copy PHY tables over from Linux to support SM8150
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
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Add configuration for the SC7280, copied from Linux 6.11
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
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The ufsphy_v2_regs_layout is not used, drop it and fix:
phy-qcom-qmp-ufs.c:87:27: warning: ‘ufsphy_v2_regs_layout’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
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The qcom_pmic code is broken for new PMICs and should be fixed,
without the QUIRK the code is broken and the GPIOs don't work
anymore on SM8550 and SM8650 platforms.
Partially revert the revert and only add the quirk on the PM8550
PMIC, making the buttons and MMC detect gpio work again.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
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On earlier platforms, the vqmmc regulator was enabled by the
previous bootloader, but on the newest (SM8650) it's not
and we need vqmmc to be enabled in order to have the card
to respond.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
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Moving the hw_reset function from the controller driver to
the NOR framework has caused the OSPI reset not to be triggered
in the Cadence driver's probe function. As a result, reading the
flash ID during SPI calibration is incorrect, and the
CQSPI_REG_RD_DATA_CAPTURE is set with an invalid value.This makes
it unable to read the flash ID properly.
To solve this problem, it's suggested to skip SPI calibration and
instead retrieve the read_delay directly from the device tree.
Skipping SPI calibration doesn't bring harm since there's no need
for the flash golden values stored during SPI calibration.
Instead, they are now read during the spi_nor_read_id call in the
NOR framework.
Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20241114062045.17581-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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We are about to add a large number of new entries. Update the prefix to
be a little shorter.
For SMBIOS items, use SYSID_SM_ (for System Management) which is enough
to distinguish it. For now at least, it seems that most items will be
for SMBIOS.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Raymond Mao <raymond.mao@linaro.org>
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When compiling with X86EMU_DEBUG, the compiler complains that debug.c misses
two include files. Fix that.
Signed-off-by: Yuri Zaporozhets <yuriz@qrv-systems.net>
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attempted
Currently the PM_{inp,outp}* macros are completely broken on non-x86 architectures,
because they will essentially access random memory locations if called (and produce
a lot of rightful compilation warnings too). For now, replace those macros with
warnings (until the code is fixed), so the user at least knows that the emulator
attempted to access some x86 I/O port.
Signed-off-by: Yuri Zaporozhets <yuriz@qrv-systems.net>
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We don't have audio support in U-Boot, but we do have boot menus. Add an
option to re-map the volume and power buttons to up/down/enter so that
in situations where these are the only available buttons (such as on
mobile phones) it's still possible to navigate menus built in U-Boot or
an external EFI app like GRUB or systemd-boot.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
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Add native support of the bootcount mechanism in the ZynqMP by
utilising internal PMU registers. The Persistent Global Storage
Registers of the Platform Management Unit can keep their value
during reboot cycles unless there is a POR reset, making them
appropriate for the bootcount mechanism.
Signed-off-by: Vasileios Amoiridis <vasileios.amoiridis@cern.ch>
Reviewed-by: Heiko Schocher <hs@denx.de>
Link: https://lore.kernel.org/r/20241105132744.1572759-2-vassilisamir@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
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mem map changes"
Janne Grunau <j@jannau.net> says:
The changes in "Make LMB memory map global and persistent" [1] break
mapping DMA memory in the USB xHCI driver when using the apple_dart
iommu present on Apple silicon systems.
The IOVA space used by the u-boot driver (low 4GB) and physical memory
do not overlap. The physical memory on this systems starts depending on
the SoC either at 0x10_0000_0000 or 0x100_0000_0000. It make no sense to
manage these distinct regions in a single LMB map. In addition every
device has its own iommu and IO address space so sharing a single memory
map between all iommu instances is not necessary.
To fix this issue restore the used subset (add, alloc and free) of the
previous pointer based LMB interface with "io_" as prefix.
To ensure that low level lmb functions do not use the global LMB
variable reorder lib/lmb.c so that the variable is not visible.
Tested with patches from my "Fix device removal order for Apple dart
iommu" series [2] to fix a separate issue.
The cosmetic commit has two checkpatch warnings in existing code which I
ignored.
[1] https://lore.kernel.org/u-boot/20240826115940.3233167-1-sughosh.ganu@linaro.org/
[2] https://lore.kernel.org/u-boot/20241031-iommu_apple_dart_ordering-v1-0-8a6877946d6b@jannau.net/
Link: https://lore.kernel.org/r/20241111-io_lmb_apple_dart_iommu-v3-0-32c05da51d72@jannau.net
Signed-off-by: Tom Rini <trini@konsulko.com>
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