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Legacy PCI devices, like qemu's Bochs VGA device, are allowed to have
prefetchable 32-bit BARs, while PCIe devices are not allowed to have
32-bit prefetchable BARs. Typically prefetchable BARs are 64-bit and
typically the prefetch MMIO window is also 64-bit and placed above
4GiB, as it's the case on qemu sbsa-ref.
Currently the U-Boot code assumes that prefetchable BARs are
64-bit BARs and always tries to assign them into the prefetch
MMIO window.
When a 32-bit BAR is marked as prefetch, but the prefetch area is
not within the first 4GiB of the address space, then downgrade the
BAR and place it in the non-prefetch MMIO window.
For prefetch BARs there's no downside on being placed in non prefetch
MMIO areas, besides the possible slower performance when a driver tries
to map it Write-Combine.
TEST: Fixes pci_auto on QEMU sbsa-ref fails to autoconfigure BAR0.
Signed-off-by: Patrick Rudolph <[email protected]>
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One MediaTek PCIe Gen3 controller has only one port, where PCI bus 0
on this port represents the controller itself and bus 1 represents
the external PCIe device.
If multiple PCIe controllers are probed in U-Boot, U-Boot will use
bus numbers greater than 2 as input parameters. Therefore, we should
convert the BDF bus number to either 0 or 1 by subtracting the
offset by controller->seq_.
Signed-off-by: Sam Shih <[email protected]>
Signed-off-by: Weijie Gao <[email protected]>
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Simon Glass <[email protected]> says:
The current UPL spec[1] has been tidied up and improved over the last
year, since U-Boot's original UPL support was written.
This series includes some prerequisite patches needed for the real UPL
patches. It is split from [2]
[1] https://github.com/UniversalPayload/spec/tree/3f1450d
[2] https://patchwork.ozlabs.org/project/uboot/list/?series=438574&state=*
Link: https://lore.kernel.org/r/[email protected]
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Add this information to the handoff structure so that it is available to
U-Boot proper. Update bochs and the video handoff.
Signed-off-by: Simon Glass <[email protected]>
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Add support for the PCIe busses on Qualcomm platforms,
by using the pcie_dw_common infrastructure.
The driver is based on the Linux driver but only supporting
the "1_9_0" and compatible platforms like:
- sa8540p
- sc7280
- sc8180x
- sc8280xp
- sdm845
- sdx55
- sm8150
- sm8250
- sm8350
- sm8450
- sm8550
- sm8650
- x1e80100
But it has only been tested on:
- sc7280
- sm8550
- sm8650
- x1e80100
It supports setting the IOMMU SID table for supported platforms.
Signed-off-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Caleb Connolly <[email protected]>
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Add PCIe config space capability search function specific for
the host controller, which are bridges *to* PCI devices but
are not PCI devices themselves.
Signed-off-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Caleb Connolly <[email protected]>
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Prepare v2025.01-rc5
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There are difference between upstream DT and the old DT
in terms of reg base, reset gpio and syscon. Make the driver
compatible with upstream DT.
Tested-by: Anand Moon <[email protected]>
Tested-by: E Shattow <[email protected]>
Signed-off-by: Hal Feng <[email protected]>
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The correct spelling is R-Car, including the dash, update the usage.
Kconfig strings and comment changes only, no functional change.
Signed-off-by: Marek Vasut <[email protected]>
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Patrick Rudolph <[email protected]> says:
Based on the existing work done by Simon Glass this series adds
support for booting aarch64 devices using ACPI only.
As first target QEMU SBSA support is added, which relies on ACPI
only to boot an OS. As secondary target the Raspberry Pi4 was used,
which is broadly available and allows easy testing of the proposed
solution.
The series is split into ACPI cleanups and code movements, adding
Arm specific ACPI tables and finally SoC and mainboard related
changes to boot a Linux on the QEMU SBSA and RPi4. Currently only the
mandatory ACPI tables are supported, allowing to boot into Linux
without errors.
The QEMU SBSA support is feature complete and provides the same
functionality as the EDK2 implementation.
The changes were tested on real hardware as well on QEMU v9.0:
qemu-system-aarch64 -machine sbsa-ref -nographic -cpu cortex-a57 \
-pflash secure-world.rom \
-pflash unsecure-world.rom
qemu-system-aarch64 -machine raspi4b -kernel u-boot.bin -cpu cortex-a72 \
-smp 4 -m 2G -drive file=raspbian.img,format=raw,index=0 \
-dtb bcm2711-rpi-4-b.dtb -nographic
Tested against FWTS V24.03.00.
Known issues:
- The QEMU rpi4 support is currently limited as it doesn't emulate PCI,
USB or ethernet devices!
- The SMP bringup doesn't work on RPi4, but works in QEMU (Possibly
cache related).
- PCI on RPI4 isn't working on real hardware since the pcie_brcmstb
Linux kernel module doesn't support ACPI yet.
Link: https://lore.kernel.org/r/[email protected]
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These header files presumably duplicate things already in the U-Boot
devicetree. For now, bring them in to get the ASL code and ACPI table
code to compile.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Patrick Rudolph <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Matthias Brugger <[email protected]>
Cc: Matthias Brugger <[email protected]>
Cc: Peter Robinson <[email protected]>
Cc: Tom Rini <[email protected]>
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Add support for the Cadence PCIe Controller present on TI's K3 SoCs.
This driver is an adaptation of the Linux driver.
Signed-off-by: Siddharth Vadapalli <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Rename this function to indicate that it refers to any xPL phase.
Signed-off-by: Simon Glass <[email protected]>
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Add support for upstream linux split PCIe node.
Upstream linux have an alternative way to declare PCIe nodes that splits
them in dedicated nodes for each line instead of putting them all in one
node.
Detect this by checking if the mediatek,generic-pciecfg node is passed
as it's used to reference the common address for all the PCIe lines.
Signed-off-by: Christian Marangi <[email protected]>
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Drop all duplicate newlines. No functional change.
Signed-off-by: Marek Vasut <[email protected]>
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Set pcie-phy optional for PCIe gen3. MT7988 doesn't require it and
making it mandatory prevent the driver to correctly probe.
Signed-off-by: Christian Marangi <[email protected]>
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Add MediaTek GEN3 PCIe controller support for filogic silicon.
This is adapted from the Linux version of the driver.
Signed-off-by: John Crispin <[email protected]>
[ fix minor problems, fix checkpatch errors ]
Signed-off-by: Christian Marangi <[email protected]>
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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 <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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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 c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Remove <common.h> from this driver directory and when needed
add missing include files directly.
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Add support for the IMX8MM SoC by adding driver data with the compatible
string of the GPR controller.
Reviewed-by: Marek Vasut <[email protected]>
Signed-off-by: Tim Harvey <[email protected]>
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Since now we have the modern pcie_dw_imx.c driver for iMX SoCs,
encourage people to switch to that for any further new iMX SoC support
or even for the older iMX6 SoCs too.
Suggested-by: Peter Robinson <[email protected]>
Signed-off-by: Sumit Garg <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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pcie_imx doesn't seem to share any useful code for iMX8 SoC and it is
tied to quite old port of pcie_designware driver from Linux which
suffices only iMX6 specific needs.
But currently we have the common DWC specific bits which alligns pretty
well with DW PCIe controller on iMX8MP SoC. So lets reuse those common
bits instead as a new driver for iMX8 SoCs. It should be fairly easy to
add support for other iMX8 variants to this driver.
iMX8MP SoC also comes up with standalone PCIe PHY support, so hence we
can reuse the generic PHY infrastructure to power on PCIe PHY.
Tested-by: Tim Harvey <[email protected]> #imx8mp-venice*
Tested-by: Adam Ford <[email protected]> #imx8mp-beacon-kit
Reviewed-by: Marek Vasut <[email protected]>
Signed-off-by: Sumit Garg <[email protected]>
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FDT functions is not working when OF_LIVE is enabled.
Convert fdt parsing functions to ofnode parsing functions
Signed-off-by: Maksim Kiselev <[email protected]>
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This enables 64b BARs if CONFIG_SYS_PCI_64BIT is enabled.
Reviewed-by: Philip Oberfichtner <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Moritz Fischer <[email protected]>
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In order to make it easier to move on to dropping common.h from code
directly, remove common.h inclusion from the rest of the header file
which had been including it.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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The host bridge MMIO region is disabled by default due to which MMIO
accesses cause an exception. Fix it by setting the bridge enable bit.
This change is ported from the linux pcie-xilinx driver.
Signed-off-by: Mayuresh Chitale <[email protected]>
Reviewed-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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Fix the driver to use the dev_read_addr_size API to fetch the reg
property from the DT.
Signed-off-by: Mayuresh Chitale <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
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https://source.denx.de/u-boot/custodians/u-boot-rockchip
- Add Board: rk3568 Bananapi R2Pro;
- Update pcie bifurcation support;
- dwc_eth_qos controller support for rk3568 and rk3588;
- Compressed binary support for U-Boot on rockchip platform;
- dts and config updates for different board and soc;
[ trini: Fix conflict on include/spl.h ]
Signed-off-by: Tom Rini <[email protected]>
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Set number of lanes and link width speed control register based on the
num-lanes property.
Code imported almost 1:1 from dw_pcie_setup in mainline linux.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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The PCI helpers read only the base address for a PCI region. In some cases
the size is needed as well, e.g. to pass along to a driver which needs to
know the size of its register area.
Update the functions to allow the size to be returned. For serial, record
the information and provided it with the serial_info() call.
A limitation still exists in that the size is not available when OF_LIVE
is enabled, so take account of that in the tests.
Signed-off-by: Simon Glass <[email protected]>
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This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h
Move this out of the common header and include it only where needed.
Signed-off-by: Simon Glass <[email protected]>
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When the Broadcom STB PCIe controller is initialized, it must be set
into one of three CLKREQ# modes: "none"/"aspm"/"l1ss". The Linux driver,
through today, hard-codes "aspm" since the vast majority of boards using
this driver have a fixed PCIe bus with the CLKREQ# signal wired up.
The Raspberry Pi CM4, however, can be connected to a plethora of PCIe
devices, some of which do not connect the CLKREQ# line (they just leave
it floating). So "aspm" mode is no longer appropriate in all cases. In
Linux, there is a proposed patchset [1] to determine the proper mode.
This doesn't really make sense in U-Boot's case, so we just change the
assumption from "aspm" to "none" (which is always safe).
This patch DOES resolve a real-world crash that occurs when U-Boot is
running on a Raspberry Pi CM4 installed in slot 3 of a Turing Pi 2
cluster board.
[1]: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Sam Edwards <[email protected]>
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Since the initial U-Boot driver was ported here from Linux, the latter
has had a few changes for robustness/stability. This patch brings over
two of them:
- Do not attempt to access the configuration space of a PCIe device if
the link has gone down, as that will result in an asynchronous SError
interrupt which will crash U-Boot.
- Wait for the recommended 100ms after PERST# is deasserted.
I sent this patch while debugging a crash involving PCIe, but these
are unrelated improvements. I do not believe that this patch fixes any
real-world bug.
Signed-off-by: Sam Edwards <[email protected]>
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Prepare v2023.10-rc3
Signed-off-by: Tom Rini <[email protected]>
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Add a new DM driver supporting FTPCI100 IP used in SoC designs.
This implementation is not based on the old non-DM ftpci100 code
dropped from U-Boot.
Enable the driver in sandbox_defconfig to test compilability.
Signed-off-by: Sergei Antonov <[email protected]>
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This function only ever returns 0, but may not assign the second
parameter. Same thing for device_find_next_child(). Do not assign
ret to stop proliferation of this misuse.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The Apple hardware supports 64-bit prefetchable memory windows so
enable CONFIG_SYS_PCI_64BIT. This fixes BAR assignments for the
Broadcom Ethernet controller used in some of the desktop machines.
Signed-off-by: Mark Kettenis <[email protected]>
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The PCIe driver for RK3399 is affected by a similar issue that was fixed
for RK35xx in the commit e04b67a7f4c1 ("pci: pcie_dw_rockchip: release
resources on failing probe").
Resources are not released on failing probe, e.g. regulators may be left
enabled and the ep-gpio may be left in a requested state.
Change to use regulator_set_enable_if_allowed and disable regulators
after failure to keep regulator enable count balanced, ep-gpio is also
released on regulator failure.
Also add support for the vpcie12v-supply, remove unused include and
check return value from dev_read_addr_name.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Get the correct ECAM offset and record the secondary bus
number in Multiple RC case.
Signed-off-by: Minda Chen <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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If an error message contains a function name, it should match the name of
the function throwing the message.
Fixes: 7739d93d8288 ("pci: Match region flags using a mask")
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add pcie driver for StarFive JH7110, Also add PLDA
PCIe controller common driver functions.
Several devices are tested:
a) M.2 NVMe SSD
b) Realtek 8169 Ethernet adapter.
Signed-off-by: Mason Huo <[email protected]>
Signed-off-by: Minda Chen <[email protected]>
Acked-by: Pali Rohár <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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CONFIG_SPL_PCI_PNP=y without CONFIG_SPL_PCI=y makes no sense.
Fixes: 32f5e9e5c1a7 ("nvme: pci: Enable for SPL")
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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The Root Complex BARs default to claim the full 1 GiB memory region on
RK3568, leaving no space for any attached device.
Fix this by disable the unused BAR 0 and BAR 1 of the RC.
Signed-off-by: Jon Lin <[email protected]>
[[email protected]: Move to rk_pcie_configure and use PCI_BASE_ADDRESS_0/1 const]
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Use a similar pattern and delay values as the linux mainline driver to
speed up failing when nothing is connected.
Reduce fail speed from around 5+ seconds down to around one second on a
Radxa ROCK 3 Model A, where pcie2x1 is probed before pcie3x2 M2 slot.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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The vpcie3v3 regulator is typically a fixed regulator controlled using
gpio. Change to use enable and disable calls on the regulator instead
of trying to set a voltage value.
Also remove the delay to match linux driver, for a fixed regulator the
startup-delay-us prop can be used in case a startup delay is needed.
Limited testing on ROCK 3A, ROCK 5B, Quartz64, Odroid-M1 has shown that
this delay was not needed.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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Get the config region to use from the reg prop. Also update the
referenced region index used in comment.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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In some cases the video ROM may have been enabled previously, such as by
a previous firmware stage. Use the correct address in that case.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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A hex value is expected for the VGA mode. Add a 0x prefix, since the #
construct is not supported in SPL. We don't want to add it, due to
code-size constraints.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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When video is set up in SPL, U-Boot proper needs to use the correct
parameters so it can write to the display.
Put these in a bloblist so they are available to U-Boot proper.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Nikhil M Jain <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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