Some instructions in the ARM ISA have multiple output registers, such
as ldrd/ldp (load pair), where two registers are loaded from memory,
but also ldr with indexing, where the memory base register is incremented
as well when the value is loaded to the destination register.
MMIO emulation under KVM is based on using the architecturally defined
syndrome information that is provided when an exception is taken to the
hypervisor. This syndrome information describes whether the instruction
that triggered the exception is a load or a store, what the faulting
address was, and which register was the destination register.
This syndrome information can only describe one destination register, and
when the trapping instruction is one with multiple outputs, KVM throws an
error like
kvm [615929]: Data abort outside memslots with no valid syndrome info
on the host and kills the QEMU process with the following error:
U-Boot 2020.07-rc3-00208-g88bd5b179360-dirty (Jun 06 2020 - 11:59:22 +0200)
DRAM: 1 GiB
Flash: error: kvm run failed Function not implemented
R00=00000001 R01=00000040 R02=7ee0ce20 R03=00000000
R04=7ffd9eec R05=00000004 R06=7ffda3f8 R07=00000055
R08=7ffd9eec R09=7ef0ded0 R10=7ee0ce20 R11=00000000
R12=00000004 R13=7ee0cdf8 R14=00000000 R15=7ff72d08
PSR=200001d3 --C- A svc32
QEMU: Terminated
This means that, in order to run U-Boot in QEMU under KVM, we need to
avoid such instructions when accessing emulated devices. For the flash
in particular, which is a hybrid between a ROM (backed by a read-only
KVM memslot) when in array mode, and an emulated MMIO device (when in
write mode), we need to take care to only use instructions that KVM can
deal with when they trap.
So override the flash read accessors that are used when running on QEMU
under KVM. Note that the the 64-bit wide read and write accessors have
been omitted: they are never used when running under QEMU given that it
does not emulate CFI flash that supports it.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
The QEMU/mach-virt targeted port of u-boot currently only runs on
QEMU under TCG emulation, which does not model the caches at all,
and so no users can exist that are relying on the GRUB hack for
EFI boot.
We will shortly enable support for running under KVM, but the GRUB
hack (which disables all caches without doing cache cleaning by VA
during ExitBootServices()) is likely to cause more problems than it
solves, given that KVM hosts require correct maintenance if they
incorporate non-architected system caches.
So let's disable the GRUB hack by default on the QEMU/mach-virt
port.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Add an override for enable_caches to enable the I and D caches, along
with the cached 1:1 mapping of all of DRAM. This is needed for running
U-Boot under virtualization with QEMU/kvm.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
QEMU's mach-virt machine only supports selecting CPU models that
implement the virtualization extensions, and are therefore guaranteed
to support LPAE as well.
Initially, QEMU would not allow emulating these CPUs running in HYP
mode (or EL2, for AArch64), but today, it also contains a complete
implementation of the virtualization extensions themselves.
This means we could be running U-Boot in HYP mode, in which case the
LPAE long descriptor page table format is the only format that is
supported. If we are not running in HYP mode, we can use either.
So let's enable CONFIG_ARMV7_LPAE for qemu_arm_defconfig so that we
get the best support for running with the MMU and caches enabled at
any privilege level.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
The LPAE versions of DCACHE_WRITEBACK and DCACHE_WRITETHROUGH are currently
defined as no-allocate for both reads and writes, which deviates from the
non-LPAE definition, and mostly defeats the purpose of enabling the caches
in the first place.
So align LPAE with !LPAE, and enable allocate-on-read for both. And while
at it, add some clarification about the meaning of the chosen values.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Snapdragon SoCs and IPQ40xx use common TLMM IP,
so existing driver supports IPQ40xx as well.
So lets simply add a compatible for IPQ40xx.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-By: Ramon Fried <rfried.dev@gmail.com>
IPQ40xx and currently supported Snapdragon boards don't use the same one
so enable reading it from DT, if no DT property is found default value
is the same as the previous define.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-By: Ramon Fried <rfried.dev@gmail.com>
This introduces initial support for the popular Qualcomm
IPQ40x8 and IPQ40x9 WiSoC series.
IPQ40xx series have 4x Cortex A7 ARM-v7A cores.
Supported are: IPQ4018, IPQ4019, IPQ4028 and IPQ4029.
IPQ40x8 and IPQ40x9 use the same cores, but differ in
addressable RAM size (1GB for IPQ40x9 and 256MB for IPQ40x8)
and supported peripherals (IPQ40x8 lacks RGMII, LCD controller
and EMMC/SDHCI controllers).
IQP4028/IPQ4029 models differ from IPQ4018/IPQ4019 only
by their rated temperatures rates with IPQ402X models being
rated for wider temperature ranges.
Initially this supports:
* Simple clock driver (Only for UART1 now, will be extended)
* Pinctrl driver (Supports UARTX and GPIO now, will be extended)
* GPIOs already supported by msm_gpio driver with updates
* UARTs already supported by serial_msm driver with updates
Further peripherals will come in later patches.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
The pins for the MMC controller weren't being set up correctly because the
pinctrl driver only sets the GPIO pullup/pulldown config and doesn't
handle the special cases with PUPD/R0/R1 control.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
The sgmii mode init flow is almost the same for all mediatek SoC, the
only difference is the register offset(SGMSYS_GEN2_SPEED) is 0x2028
in the old chip(mt7622) but changed to 0x128 for the newer chip(mt7629
and the following chips).
Signed-off-by: MarkLee <Mark-MC.Lee@mediatek.com>
Done with:
./tools/moveconfig.py -S SPL_LOAD_FIT_ADDRESS
./tools/moveconfig.py -S SPL_LOAD_FIT_ADDRESS -H
Signed-off-by: Peng Fan <peng.fan@nxp.com>
[trini: A few more migrations]
Signed-off-by: Tom Rini <trini@konsulko.com>
BOOTP_DEFAULT is defined in several boards, but this config
option is never checked or used.
This patch removes this config option from config files and
the whitelist.txt
Signed-off-by: Adam Ford <aford173@gmail.com>
This converts the following to Kconfig:
CONFIG_SPL_NAND_DRIVERS
CONFIG_SPL_NAND_ECC
CONFIG_SPL_NAND_SIMPLE
Signed-off-by: Adam Ford <aford173@gmail.com>
This converts the following to Kconfig:
CONFIG_ENV_OVERWRITE
Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Rerun migration, remove some comments]
Signed-off-by: Tom Rini <trini@konsulko.com>
Add DT for DH DRC02 unit, which is a universal controller device.
The system has two ethernet ports, two CANs, RS485 and RS232, USB,
capacitive buttons and an OLED display.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
The PHY and the VIO regulator is populated on the SoM, move it
into the SoM DT.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit adds device tree files supporting
SBC from Seeed Studio based on STM32MP157C.
This works with generic stm32mp1 config.
Right now only booting from SD card is supported.
Signed-off-by: Marcin Sloniewski <marcin.sloniewski@gmail.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Since commit f13ff88b61 ("gpio: stm32: add ops set_dir_flags")
the gpio flags are supported by stm32 pinctrl driver.
The cd-gpios is correctly handle in U-Boot and the patch on the
device tree can be removed.
This reverts commit 792919241b.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Since commit f13ff88b61 ("gpio: stm32: add ops set_dir_flags")
the gpio flags are supported by stm32 pinctrl driver.
The cd-gpios is correctly handle in U-Boot and the patch on the
device tree can be removed.
This reverts commit 3c2e2a1a79.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Replace the function spl_board_prepare_for_boot_linux by the correct
name of the weak function spl_board_prepare_for_linux defined in spl.h.
This patch avoids warning with W=1 option:
u-boot/arch/arm/mach-stm32mp/spl.c:150:6:
warning: no previous prototype for ‘spl_board_prepare_for_boot_linux’
[-Wmissing-prototypes]
Fixes: dc7e5f190d ("arm: stm32mp: activate data cache on DDR in SPL")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
STM32 serial IP can be reset via reset controller.
Add the support of reset to uart nodes on stm32mp15-u-boot.dtsi,
the ad-dons file for U-Boot.
This patch fix issues when previous UART configuration, for example
done in TF-A or ROM code, is not handled in U-Boot stm32 serial driver
init.
This reset property won't be not added in Linux kernel device tree
as this reset is not used in Linux STM32 serial driver.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Remove hnp-srp-disable for usbotg node because this feature is only needed
for usbotg in HOST mode (in drivers/usb/host/dwc2.c)
and this feature is not activated in stm32mp15 U-Boot
(stm32mp15_basic_defconfig and stm32mp15_trusted_defconfig);
only the device mode is activated and OTG is not supported in DWC2 driver.
This patch reduces the difference between U-Boot and Linux kernel
device-tree.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
DT alignment with Linux kernel v5.8-rc1 for the STM32MP15x soc
device tree files and the STMicroelectronics boards device tree files.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Alignment with pins name used in Linux kernel v5.8.
It is a preleminary step for device tree alignment.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Activate the support of the command adtimg to handle android images.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Use regulator_set_enable_if_allowed() api instead of regulator_set_enable()
while disabling vdd supply. This way the driver doesn't see an error
when disabling an always-on regulator.
This patch is needed since the commit f93fab3126 ("Revert 'power:
regulator: Return success on attempt to disable an always-on regulator'")
and use the API introduced by commit cc4a224af2 ("power: regulator:
Introduce regulator_set_enable_if_allowed api").
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Check result of find_mmc_device() before calling mmc_init().
This patch avoid a data abort when the command try to acces
to sd/mmc device deactivated in device tree.
Fixes: aff4c5dd82 ("stm32mp: stm32prog: add MMC device")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Update management of misc_read, which now return length of data
after the commit 8729b1ae2c ("misc: Update read() and write()
methods to return bytes xfered")
Fixes: 8b8b3d6b55 ("stm32mp1: board: add environment variable for board id and board rev")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Overriding the environment location is not necessary as the defconfig
for the relevant boards only enable SPI flash and nowhere sources which
are in the same order per default but having this explicit override
prevents using eMMC or SD card (or EXT4) as environment source.
Signed-off-by: Jakob Riepler <jakob.riepler@aviloo.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Activate the new option -q in command "env info"
to avoid unnecessary trace during boot.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Activate env config in SPL with CONFIG_SPL_ENV_SUPPORT
and use CONFIG_IS_ENABLED macro to test the activated
CONFIG_$(SPL_)ENV_IS_IN_... in env_get_location.
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Save the environment at the end of the U-Boot partition, the GPT
partition named "ssbl" in SD card or eMMC and avoid requirements
on the "bootfs" file system generated via specific raw tools
(like wic and genimage).
With the previous configuration of the U-Boot environment saved in ext4
file, U-Boot need to create/modify the file uenv.txt in the ext4 file
system; so this EXT4 file system need to be generated without some
functionality, like metadata_csum and dir_index, because they are not
supported by U-Boot.
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add support of CONFIG_ENV_IS_IN_MMC in env_get_location, used for
all mmc device (SD card and eMMC).
The 2 configs CONFIG_ENV_IS_IN_MMC and CONFIG_ENV_IS_IN_EXT4 are
incompatible.
Add the weak function mmc_get_env_dev to select the mmc boot instance.
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Since commit d877f8fd0f ("arm: provide a function for boards init
code to modify MMU virtual-physical map") the parameter of
mmu_set_region_dcache_behaviour need to be MMU_SECTION_SIZE
aligned.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
As the dbgmcu_init use the function bsec_dbgswenable which is based
on the DM and DT, its call can't be done before the spl is initialized
(driver model, DT and malloc) in board_init_f::spl_early_init().
This function call is moved later in spl_board_init().
Fixes: bd3f60d29c ("arm: stm32mp: protect DBGMCU_IDC access with BSEC")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Recent CI failures were seen [1] when building MSYS2 Windows host
tools. The error messages are something like:
downloading mingw32.db...
downloading mingw32.db.sig...
error: mingw32: key "4A6129F4E4B84AE46ED7F635628F528CF3053E04" is unknown
error: mingw32: signature from "David Macek <david.macek.0@gmail.com>" is unknown trust
error: failed to update mingw32 (invalid or corrupted database (PGP signature))
Per the MSYS2 official news [2], this was caused by a packager
switch and several solutions were suggested, e.g.: a new package
of msys2-keyring and a new msys2 installer that includes them are
released. However right now we have been using the MSYS2 github
CI base repo [3] for the MSYS2 build in U-Boot, but per the project
information on the github webpage, it says: "This repository is
unused/deprecated and will be remove after 2021-01-01". Since it is
unmaintained it's unlikely the new PGP keys will be included in the
git repo, and the only choice is to switch to use the MSYS2 official
installer as the CI base instead.
[1] https://dev.azure.com/u-boot/u-boot/_build/results?buildId=975
[2] https://www.msys2.org/news/#2020-06-29-new-packagers
[3] https://github.com/msys2/msys2-ci-base
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Package 'flex' is needed when building the U-Boot host tool, but
is currently missing in the build dependency in the CI pipeline.
This is to prepare switching to an installer based CI build.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This simplifies things a bit to just use a login shell everywhere.
This keeps in sync with MSYS2 upstream commit:
9d11b7f0aa93 ("azure-pipelines: simplify things a bit").
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
