Tim Harvey [Fri, 4 Nov 2022 15:43:06 +0000 (08:43 -0700)]
board: gateworks: venice: remove redundance adjustment of thermal trip points
commit 0543a1ed2787 ("imx8m: fixup thermal trips") moved updating the
thermal trip points to all IMX8M so we can remove it from our board
specific dt config.
Martyn Welch [Tue, 25 Oct 2022 09:55:01 +0000 (10:55 +0100)]
drivers: power: pmic: Enable use of rn5t567 PMIC in SPL
The support added later in this series tweaks the PMIC voltages in the
SPL. Enable support for the rn5t567 in SPL builds to allow this to be done
cleanly.
Adam Ford [Sat, 22 Oct 2022 14:28:24 +0000 (09:28 -0500)]
imx: imx8mm-beacon: Move Environment to eMMC partition 2
The downstream U-Boot distributed by Beacon stores the environment
in the eMMC and the end of partition 2. This allow the environment
to stay on the SOM regardless of the boot source.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Fabio Estevam <festevam@denx.de>
Adam Ford [Sat, 22 Oct 2022 14:28:23 +0000 (09:28 -0500)]
imx: imx8mm-beacon: Enable USB booting via SDP
In order to boot over USB, the device tree needs to enable
a few extra nodes in SPL. Since the USB driver has the
ability to detect host/device, the dr_mode can be removed
from the device tree since it needs to act as a device when
booting and OTG is the default mode. Add USB boot support
to spl_board_boot_device and enable the corresponding config
options.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Fabio Estevam <festevam@denx.de>
Adam Ford [Sat, 22 Oct 2022 14:28:22 +0000 (09:28 -0500)]
imx: imx8mm_beacon: Eliminate a few extras to free up SPL space
There are a few functions which are not essential for use in
SPL, but they take up enough space to make other preferred
features not fit. Remove the extras.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Fabio Estevam <festevam@denx.de>
Adam Ford [Sat, 22 Oct 2022 13:43:44 +0000 (08:43 -0500)]
imx: imx8mn-beacon: Fix out of spec voltage
The DDR is configured for LPDDR4 running at 1.6GHz which requires
the voltage on the PMIC to rise a bit before initializing LPDDR4
or it will be running out of spec.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Peng Fan <peng.fan@nxp.com>
Adam Ford [Sat, 22 Oct 2022 13:43:42 +0000 (08:43 -0500)]
regulator: bd718x7: Only bind children when PMIC_CHILDREN is enabled
If the bd718x7 is required, but PMIC_CHILDREN is disabled, this
driver throws a compile error. Fix this by putting the function
to bind children into an if-statement checking for PMIC_CHILDREN.
Allowing PMIC_CHILDREN to be disabled in SPL saves some space and
still permits some read/write functions to access the PMIC in
early startup.
Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Fabio Estevam <festevam@gmail.com>
- The code intended to temporarily mask all interrupts in GPC_IMRx_CORE0.
While the old register values were saved, the actual masking was
missing.
- imx_udelay() expects the system counter to run at its base frequency,
but the system counter is switched to a lower frequency earlier in
psci_system_suspend(), leading to a much longer delay than intended.
Replace the call with an equivalent loop (linux-imx 5.15 does the same)
This fixes the SoC hanging forever when there was already a wakeup IRQ
pending while suspending.
Chris Packham [Sat, 5 Nov 2022 04:24:00 +0000 (17:24 +1300)]
arm: mvebu: Add RD-AC5X board
The RD-AC5X-32G16HVG6HLG-A0 development board main components and
features include:
* Main 12V/54V power supply
* 270 Gbps throughput packet processor on the main board
* DDR4:
* SR1: 2GB DDR4 2400MT/S(1GB x 2 pcs ) with ECC(1GB x 1 pcs)
* SR2: 4GB DDR4 2400MT/S(2GB x 2 pcs ) with ECC(2GB x 1 pcs)
* PCB co-layout with 4GB device to support 8GB (Dual CS) requirement
* 16GB eMMC (Samsung KLMAG1JETD-B041006)
* 16MB SPI NOR(GD25Q127C)
* 32 x 1000 Base-T interfaces
* 16 x 2500 Base-T interfaces
* SR1: 88E2540*4
* SR2: 88E2580*1+88E2540*2
* Six (6) x 25G Base-R SFP28 interfaces
* One (1) x RJ-45 console connector, interfacing to the on board UART
* One (1) x USB Type-A connector, interfacing to the USB 2.0 port (0)
* One (1) x USB Type-mini B connector, interfacing to the USB 2.0 port (1)
* One (1) x RJ-45 1G Base-T Management port, interfacing to the host
port (shared with PCIe) Connected to 88E1512 Gigabit Ethernet Phy
* One (1) x Oculink port, interfacing to the PCIe port for external CPU
connection
* POE 802.3AT support on Port 1 ~ Port 32, 802.3BT support on Port 33 ~
Port 48 (Microsemi PD69208T4, PD69208M or TI TPS2388,TPS23881
solution)
* POE total power budget 780W
* LED interfaces per network port/POE
* LED interfaces (common) showing system status
* PTP TC mode Supported (Reserved M.2 connector to support BC mode)
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Chris Packham [Sat, 5 Nov 2022 04:23:59 +0000 (17:23 +1300)]
arm: mvebu: Support for 98DX25xx/98DX35xx SoC
Add support for the Allecat5/Alleycat5X SoC. These are L3 switches with
an integrated CPU (referred to as the CnM block in Marvell's
documentation). These have dual ARMv8.2 CPUs (Cortex-A55). This support
has been ported from Marvell's SDK which is based on a much older
version of U-Boot.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Chris Packham [Sat, 5 Nov 2022 04:23:57 +0000 (17:23 +1300)]
usb: ehci: ehci-marvell: Support for marvell,ac5-ehci
Unlike the other 64-bit mvebu SoCs the AlleyCat5 uses the older ehci
block from the 32-bit SoCs. Adapt the ehci-marvell.c driver to cope with
the fact that the ac5 does not have the mbus infrastructure the 32-bit
SoCs have and ensure USB_EHCI_IS_TDI is selected.
Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de>
Chris Packham [Sat, 5 Nov 2022 04:23:56 +0000 (17:23 +1300)]
net: mvneta: Add support for AlleyCat5
Add support for the AlleyCat5 SoC. This lacks the mbus from the other
users of the mvneta.c driver so a new compatible string is needed to
allow for a different window configuration.
Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de>
Chris Packham [Sat, 5 Nov 2022 04:23:55 +0000 (17:23 +1300)]
arm: mvebu: Don't use CONFIG_TIMER on ARM64
The 64-bit mvebu SoCs don't have a suitable timer driver so add a !ARM64
condition to the select.
Fixes: 7b530bb19e ("arm: mvebu: Use CONFIG_TIMER on all MVEBU & KIRKWOOD platforms") Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de>
Pali Rohár [Wed, 2 Nov 2022 17:51:28 +0000 (18:51 +0100)]
Makefile: Rename u-boot-spl.kwb to u-boot-with-spl.kwb
File name with pattern u-boot-spl* is used on all places except in kwb
image for binary with SPL-only code. Combined binary with both SPL and
proper U-Boot in other places has file name pattern u-boot-with-spl*.
Make it consistent also for kwb image and rename u-boot-spl.kwb to
u-boot-with-spl.kwb as this image contains both SPL and proper U-Boot code.
Also update documentation about file name changes.
Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
Hamish Martin [Thu, 20 Oct 2022 21:21:59 +0000 (10:21 +1300)]
arm: armada: dts: Add clock to armada-ap80x uart1
The uart1 node was missing the 'clock-frequency' property. This meant
the driver for this device would fail at probe.
The clock for uart1 is fed from the same source as uart0 and is a fixed
200MHz clock. This is confirmed via documentation for the CN9130 SoC
and from the equivalent code in Linux at:
<linux>/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi
where uart0 and uart1 share a common 'clocks' definition.
Signed-off-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz> Reviewed-by: Stefan Roese <sr@denx.de>
AllocatePages() can be called with Type=AllocateAddress. Such a call can
only succeed if *Memory points to the address of an unallocated page range.
A call with *Memory being an address that is not page aligned must not
succeed. The UEFI specification requires returning EFI_OUT_OF_RESOURCES
if the requested pages cannot be allocated.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
AKASHI Takahiro [Fri, 21 Oct 2022 03:01:57 +0000 (12:01 +0900)]
efi_loader: remove CONFIG_EFI_SETUP_EARLY
Since the commit a9bf024b2933 ("efi_loader: disk: a helper function to
create efi_disk objects from udevice"), CONFIG_EFI_SETUP_EARLY option is
by default on and will never be turned off.
Jan Kiszka [Fri, 14 Oct 2022 16:10:06 +0000 (18:10 +0200)]
efi_loader: Let networking support depend on NETDEVICES
CONFIG_NET does not imply that there are actually network devices
available, only CONFIG_NETDEVICES does. Changing to this dependency
obsoletes the check in Kconfig because NETDEVICES means DM_ETH.
Fixes: 0efe1bcf5c2c ("efi_loader: Add network access support") Suggested-by: Tom Rini <trini@konsulko.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tom Rini [Thu, 3 Nov 2022 18:25:44 +0000 (14:25 -0400)]
docs: Add a basic security document
Based loosely on the Linux kernel
Documentation/admin-guide/security-bugs.rst file, create a basic
security document for U-Boot. In sum, security issues should be
disclosed in public on the mailing list if at all possible as an initial
position.
Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Marek Vasut [Sun, 30 Oct 2022 22:38:35 +0000 (23:38 +0100)]
usb: Add 1ms delay after first Get Descriptor request
Logitech Unifying Receiver 046d:c52b bcdDevice 12.10 seems
sensitive about the first Get Descriptor request. If there
are any other requests in the same microframe, the device
reports bogus data, first of the descriptor parts is not
sent to the host. Wait over one microframe duration before
issuing subsequent requests to avoid probe failure with
this device, since it can be used to connect USB keyboards.
Signed-off-by: Marek Vasut <marex@denx.de> Tested-by: Janne Grunau <j@jannau.net>
Padmarao Begari [Thu, 27 Oct 2022 06:02:02 +0000 (11:32 +0530)]
riscv: Update Microchip MPFS Icicle Kit support
This patch updates Microchip MPFS Icicle Kit support. For now,
add Microchip QSPI driver and a small 4MB reservation is
made at the end of 32-bit DDR to provide some memory for
the HSS to use.
Padmarao Begari [Thu, 27 Oct 2022 06:01:59 +0000 (11:31 +0530)]
riscv: dts: Update memory configuration
In the v2022.10 Icicle reference design, the seg registers have been
changed, resulting in a required change to the memory map.
A small 4MB reservation is made at the end of 32-bit DDR to provide some
memory for the HSS to use, so that it can cache its payload between
reboots of a specific context.
As PLICSW is used to trigger the software interrupt, we should rename
Andes PLIC configuration and file name to reflect the usage. This patch
also updates PLMT and PLICSW compatible strings to be consistent with
OpenSBI fdt driver.
Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
Stefan Roese [Fri, 28 Oct 2022 12:46:29 +0000 (14:46 +0200)]
mips: mtmips: spl/Kconfig: Set CONFIG_SPL_PAD_TO to 0x0 for ARCH_MTMIPS
It was noticed that while converting CONFIG_SPL_PAD_TO to Kconfig its
value for the MIPS MT762x/8x targets got not ported correctly. Its
default is not 0x10000 instead of 0x0. This patch fixes this issue.
Fixes: ca8a329a1b7f ("Convert CONFIG_SPL_PAD_TO et al to Kconfig") Signed-off-by: Stefan Roese <sr@denx.de> Cc: Ruben Winters <Ruben.Winters@gooiland-elektro.nl> Cc: Weijie Gao <weijie.gao@mediatek.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Tom Rini <trini@konsulko.com>
Resolve all uses of CONFIG_SYS_MHZ with the currently defined value.
Remove code which depends on CONFIG_SYS_MHZ but where no board configs
actually use that code.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de>
Baruch Siach [Sun, 23 Oct 2022 09:28:12 +0000 (12:28 +0300)]
cmd: eeprom: don't truncate target address at 32-bit
On 64-bit platforms where int is 32-bit wide, the eeprom command
parse_numeric_param() routine truncates the memory address parameter to
the lower 32-bit. Make parse_numeric_param() return long to allow
read/write of addresses beyond the lower 4GB.
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Andre Przywara [Thu, 20 Oct 2022 22:10:25 +0000 (23:10 +0100)]
highbank: switch to use the Arm SP804 DM_TIMER driver
So far the Calxeda machines were using the CONFIG_SYS_TIMER_* macros to
simply hardcode the address of the counter register of the SP804 timer.
This method is deprecated and scheduled for removal.
Use the newly introduced SP804 DM_TIMER driver to provide timer
functionality on Highbank and Midway machines. The base address and base
frequency are taken from the devicetree.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara [Thu, 20 Oct 2022 22:10:24 +0000 (23:10 +0100)]
highbank: scan into hb_sregs DT subnodes
The DT used for Calxeda Highbank and Midway systems exposes a "system
registers" block, modeled as a DT subnode.
This includes several clocks, including the two fixed clocks for the
main oscillator and timer.
So far U-Boot was ignorant of this special construct (a "clocks" node
within the "hb-sregs" node), as it didn't need the PLL clocks in there.
But that also meant we lost the fixed clocks, which form the base for
the UART baudrate generator and also the SP804 timer.
To allow the generic PL011 and SP804 driver to read the clock rate,
add a simple bus driver, which triggers the DT node discovery inside this
special node. As we only care about the fixed clocks (we don't have
drivers for the PLLs anyway), just ignore the address translation (for
now).
The binding is described in bindings/arm/calxeda/hb-sregs.yaml, the DT
snippet in question looks like:
Andre Przywara [Thu, 20 Oct 2022 22:10:23 +0000 (23:10 +0100)]
timer: add SP804 UCLASS timer driver
The "Arm Ltd. Dual-Timer Module (SP804)" is a simple 32-bit count-down
timer IP with interrupt functionality, and is used in some SoCs from
various vendors.
Add a simple DM compliant timer driver, to allow users of the SP804 to
switch to DM_TIMER.
This relies on the input clock to be accessible via the DM clock
framework, which should be fine as we probably look at fixed-clock's
here anyway.
We re-program the control register in the probe() function, but keep
the divider in place, in case this has been set to something on purpose
before.
The TRM for the timer IP can be found here:
https://developer.arm.com/documentation/ddi0271/latest
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara [Wed, 5 Oct 2022 16:38:49 +0000 (17:38 +0100)]
arm: smh: Allow semihosting trap calls to be inlined
Currently our semihosting trap function is somewhat fragile: we rely
on the current compiler behaviour to assign the second inline assembly
argument to the next free register (r1/x1), which happens to be the
"addr" argument to the smh_trap() function (per the calling convention).
I guess this is also the reason for the noinline attribute.
Make it explicit what we want: the "addr" argument needs to go into r1,
so we add another register variable. This allows to drop the "noinline"
attribute, so now the compiler beautifully inlines just the trap
instruction directly into the calling function.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara [Wed, 5 Oct 2022 16:38:48 +0000 (17:38 +0100)]
arm: smh: Make semihosting trap calls more robust
Commit f4b540e25c5c("arm: smh: Fix uninitialized parameters with newer
GCCs") added a memory clobber to the semihosting inline assembly trap
calls, to avoid too eager GCC optimisation: when passing a pointer, newer
compilers couldn't be bothered to actually fill in the structure that it
pointed to, as this data would seemingly never be used (at least from the
compiler's point of view).
But instead of the memory clobber we need to tell the compiler that we are
passing an *array* instead of some generic pointer, this forces the
compiler to actually populate the data structure.
This involves some rather hideous cast, which is best hidden in a macro.
But regardless of that, we actually need the memory clobber, but for two
different reasons: explain them in comments.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara [Wed, 5 Oct 2022 16:38:47 +0000 (17:38 +0100)]
arm: smh: specify Thumb trap instruction
The ARM semihosting interface uses different trap instructions for
different architectures and instruction sets. So far we were using
AArch64 and ARMv7-M, and had an untested v7-A entry. The latter does
not work when building for Thumb, as can be verified by using
qemu_arm_defconfig, then enabling SEMIHOSTING and SYS_THUMB_BUILD:
==========
{standard input}:35: Error: invalid swi expression
{standard input}:35: Error: value of 1193046 too large for field of 2 bytes at 0
==========
Fix this by providing the recommended instruction[1] for Thumb, and
using the ARM instruction only when not building for Thumb. This also
removes some comment, as QEMU for ARM allows to now test this case.
Also use the opportunity to clean up the inline assembly, and just define
the actual trap instruction inside #ifdef's, to improve readability.
Rasmus Villemoes [Fri, 28 Oct 2022 11:50:54 +0000 (13:50 +0200)]
cyclic: get rid of cyclic_init()
Currently, we must call cyclic_init() at some point before
cyclic_register() becomes possible. That turns out to be somewhat
awkward, especially with SPL, and has resulted in a watchdog callback
not being registered, thus causing the board to prematurely reset.
We already rely on gd->cyclic reliably being set to NULL by the asm
code that clears all of gd. Now that the cyclic list is a hlist, and
thus an empty list is represented by a NULL head pointer, and struct
cyclic_drv has no other members, we can just as well drop a level of
indirection and put the hlist_head directly in struct
global_data. This doesn't increase the size of struct global_data,
gets rid of an early malloc(), and generates slightly smaller code.
But primarily, this avoids having to call cyclic_init() early; the cyclic
infrastructure is simply ready to register callbacks as soon as we
enter C code.
We can still end up with schedule() being called from asm very early,
so we still need to check that gd itself has been properly initialized
[*], but once it has, gd->cyclic_list is perfectly fine to access, and
will just be an empty list.
As for cyclic_uninit(), it was never really the opposite of
cyclic_init() since it didn't free the struct cyclic_drv nor set
gd->cyclic to NULL. Rename it to cyclic_unregister_all() and use that
in test/, and also insert a call at the end of the board_init_f
sequence so that gd->cyclic_list is a fresh empty list before we enter
board_init_r().
A small piece of ugliness is that I had to add a cast in
cyclic_get_list() to silence a "discards 'volatile' qualifier"
warning, but that is completely equivalent to the existing handling of
the uclass_root_s list_head member.
[*] I'm not really sure where we guarantee that the register used for
gd contains 0 until it gets explicitly initialized, but that must be
the case, otherwise testing gd for being NULL would not make much sense.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Tim Harvey <tharvey@gateworks.com> # imx8mm-venice-*
Rasmus Villemoes [Fri, 28 Oct 2022 11:50:53 +0000 (13:50 +0200)]
cyclic: switch to using hlist instead of list
A hlist is headed by just a single pointer, so can only be traversed
forwards, and insertions can only happen at the head (or before/after
an existing list member). But each list node still consists of two
pointers, so arbitrary elements can still be removed in O(1).
This is precisely what we need for the cyclic_list - we never need to
traverse it backwards, and the order the callbacks appear in the list
should really not matter.
One advantage, and the main reason for doing this switch, is that an
empty list is represented by a NULL head pointer, so unlike a
list_head, it does not need separate C code to initialize - a
memset(,0,) of the containing structure is sufficient.
This is mostly mechanical:
- The iterators are updated with an h prefix, and the type of the
temporary variable changed to struct hlist_node*.
- Adding/removing is now just hlist_add_head (and not tail) and
hlist_del().
- struct members and function return values updated.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Tim Harvey <tharvey@gateworks.com> # imx8mm-venice-*
Currently, there is only one "user" of any of these, namely in
fs/ubifs/super.c, but that actually uses the "new-style" form, and
is (obviously, or it wouldn't have built) inside #ifndef __UBOOT__.
Before adding actual users of these, import the version as of linux
v6.1-rc1, including the hlist_entry_safe() helper used by the new
versions.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Tim Harvey <tharvey@gateworks.com> # imx8mm-venice-*
Rasmus Villemoes [Fri, 28 Oct 2022 11:50:51 +0000 (13:50 +0200)]
cyclic: drop redundant cyclic_ready flag
We're already relying on gd->cyclic being NULL before cyclic_init() is
called - i.e., we're relying on all of gd being zeroed before entering
any C code. And when we do populate gd->cyclic, its ->cyclic_ready
member is automatically set to true. So we can actually just rely on
testing gd->cyclic itself.
The only wrinkle is that cyclic_uninit() actually did set
->cyclic_ready to false. However, since it doesn't free gd->cyclic,
the cyclic infrastructure is actually still ready (i.e., the list_head
is properly initialized as an empty list).
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Tim Harvey <tharvey@gateworks.com> # imx8mm-venice-*
Rasmus Villemoes [Fri, 28 Oct 2022 11:50:50 +0000 (13:50 +0200)]
cyclic: use a flag in gd->flags for recursion protection
As a preparation for future patches, use a flag in gd->flags rather
than a separate member in (the singleton) struct cyclic_drv to keep
track of whether we're already inside cyclic_run().
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Tim Harvey <tharvey@gateworks.com> # imx8mm-venice-*
To quote the author:
The patchset adds support for the FWU Multi Bank Update[1]
feature. Certain aspects of the Dependable Boot[2] specification have
also been implemented.
The FWU multi bank update feature is used for supporting multiple
sets(also called banks) of firmware image(s), allowing the platform to
boot from a different bank, in case it fails to boot from the active
bank. This functionality is supported by keeping the relevant
information in a structure called metadata, which provides information
on the images. Among other parameters, the metadata structure contains
information on the currect active bank that is being used to boot
image(s).
Functionality is being added to work with the UEFI capsule driver in
u-boot. The metadata is read to gather information on the update bank,
which is the bank to which the firmware images would be flashed to. On
a successful completion of the update of all components, the active
bank field in the metadata is updated, to reflect the bank from which
the platform will boot on the subsequent boots.
Currently, the feature is being enabled on the STM32MP157C-DK2 and
Synquacer boards. The DK2 board boots a FIP image from a uSD card
partitioned with the GPT partioning scheme, while the Synquacer board
boots a FIP image from a MTD partitioned SPI NOR flash device.
This feature also requires changes in a previous stage of
bootloader, which parses the metadata and selects the bank to boot the
image(s) from. Support has being added in tf-a(BL2 stage) for the
STM32MP157C-DK2 board to boot the active bank images. These changes
have been merged to the upstream tf-a repository.
The patch for adding a python test for the feature has been developed,
and was sent in the version 5 of the patches[3]. However, the test
script depends on adding support for the feature on MTD SPI NOR
devices, and that is being done as part of the Synquacer
patches. Hence these set of patches do not have the test script for
the feature. That will be added through the patches for adding support
for the feauture on Synquacer platform.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:08 +0000 (18:16 +0530)]
FWU: doc: Add documentation for the FWU feature
Add documentation for the FWU Multi Bank Update feature. The document
describes the steps needed for setting up the platform for the
feature, as well as steps for enabling the feature on the platform.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:07 +0000 (18:16 +0530)]
mkeficapsule: Add support for setting OEM flags in capsule header
Add support for setting OEM flags in the capsule header. As per the
UEFI specification, bits 0-15 of the flags member of the capsule
header can be defined per capsule GUID.
The oemflags will be used for the FWU Multi Bank update feature, as
specified by the Dependable Boot specification[1]. Bit
15 of the flags member will be used to determine if the
acceptance/rejection of the updated images is to be done by the
firmware or an external component like the OS.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:06 +0000 (18:16 +0530)]
mkeficapsule: Add support for generating empty capsules
The Dependable Boot specification[1] describes the structure of the
firmware accept and revert capsules. These are empty capsules which
are used for signalling the acceptance or rejection of the updated
firmware by the OS. Add support for generating these empty capsules.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:05 +0000 (18:16 +0530)]
test: dm: Add test cases for FWU Metadata uclass
Add test cases for accessing the FWU Metadata on the sandbox
platform. The sandbox platform also uses the metadata access driver
for GPT partitioned block devices.
The FWU feature will be tested on the sandbox64 variant with a raw
capsule. Remove the FIT capsule testing from sandbox64 defconfig --
the FIT capsule test will be run on the sandbox_flattree variant.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:03 +0000 (18:16 +0530)]
FWU: Add support for the FWU Multi Bank Update feature
The FWU Multi Bank Update feature supports updating firmware images
to one of multiple sets(also called banks) of images. The firmware
images are clubbed together in banks, with the system booting images
from the active bank. Information on the images such as which bank
they belong to is stored as part of the metadata structure, which is
stored on the same storage media as the firmware images on a dedicated
partition.
At the time of update, the metadata is read to identify the bank to
which the images need to be flashed(update bank). On a successful
update, the metadata is modified to set the updated bank as active
bank to subsequently boot from.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:02 +0000 (18:16 +0530)]
FWU: Add boot time checks as highlighted by the FWU specification
The FWU Multi Bank Update specification requires the Update Agent to
carry out certain checks at the time of platform boot. The Update
Agent is the component which is responsible for updating the firmware
components and maintaining and keeping the metadata in sync.
The spec requires that the Update Agent perform the following checks
at the time of boot
* Sanity check of both the metadata copies maintained by the platform.
* Get the boot index passed to U-Boot by the prior stage bootloader
and use this value for metadata bookkeeping.
* Check if the system is booting in Trial State. If the system boots
in the Trial State for more than a specified number of boot counts,
change the Active Bank to be booting the platform from.
Call these checks through the main loop event at the time of platform
boot.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:01 +0000 (18:16 +0530)]
event: Add an event for main_loop
Add an event type EVT_MAIN_LOOP that can be used for registering
events that need to be run after the platform has been initialised and
before the main_loop function is called.
Sughosh Ganu [Fri, 21 Oct 2022 12:46:00 +0000 (18:16 +0530)]
FWU: STM32MP1: Add support to read boot index from backup register
The FWU Multi Bank Update feature allows the platform to boot the
firmware images from one of the partitions(banks). The first stage
bootloader(fsbl) passes the value of the boot index, i.e. the bank
from which the firmware images were booted from to U-Boot. On the
STM32MP157C-DK2 board, this value is passed through one of the SoC's
backup register. Add a function to read the boot index value from the
backup register.
Sughosh Ganu [Fri, 21 Oct 2022 12:45:59 +0000 (18:15 +0530)]
FWU: Add helper functions for accessing FWU metadata
Add weak functions for getting the update index value and dfu
alternate number needed for FWU Multi Bank update
functionality.
The current implementation for getting the update index value is for
platforms with 2 banks. If a platform supports more than 2 banks, it
can implement it's own function. The function to get the dfu alternate
number has been added for platforms with GPT partitioned storage
devices. Platforms with other storage partition scheme need to
implement their own function.
Sughosh Ganu [Fri, 21 Oct 2022 12:45:58 +0000 (18:15 +0530)]
stm32mp1: Add image information for capsule updates
Enabling capsule update functionality on the platform requires
populating information on the images that are to be updated using the
functionality. Do so for the DK2 board.
Sughosh Ganu [Fri, 21 Oct 2022 12:45:57 +0000 (18:15 +0530)]
stm32mp1: Add a node for the FWU metadata device
The FWU metadata structure is accessed through the driver model
interface. On the stm32mp157c dk2 and ev1 boards, the FWU metadata is
stored on the uSD card. Add the fwu-mdata node on the u-boot specifc
dtsi file for accessing the metadata structure.
In the FWU Multi Bank Update feature, the information about the
updatable images is stored as part of the metadata, on a separate
partition. Add a driver for reading from and writing to the metadata
when the updatable images and the metadata are stored on a block
device which is formatted with GPT based partition scheme.
Sughosh Ganu [Fri, 21 Oct 2022 12:45:55 +0000 (18:15 +0530)]
FWU: Add FWU metadata structure and driver for accessing metadata
In the FWU Multi Bank Update feature, the information about the
updatable images is stored as part of the metadata, which is stored on
a dedicated partition. Add the metadata structure, and a driver model
uclass which provides functions to access the metadata. These are
generic API's, and implementations can be added based on parameters
like how the metadata partition is accessed and what type of storage
device houses the metadata.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Sughosh Ganu [Fri, 21 Oct 2022 12:45:54 +0000 (18:15 +0530)]
dt/bindings: Add bindings for GPT based FWU Metadata storage device
Add bindings needed for accessing the FWU metadata partitions. These
include the compatible string which point to the access method and the
actual device which stores the FWU metadata.
The current patch adds basic bindings needed for accessing the
metadata structure on GPT partitioned block devices.
To quote Simon:
This series provides an implementation of VBE from TPL through to U-Boot
proper, using VBE to load the relevant firmware stages. It buils a single
image.bin file containing all the phases:
TPL - initial phase, loads VPL using binman symbols
VPL - main firmware phase, loads SPL using VBE parameters
SPL - loads U-Boot proper using VBE parameters
U-Boot - final firmware phase, where OS booting is processed
This series does not include the OS-booting phase. That will be the
subject of a future series.
The implementation is entirely handled by sandbox. It should be possible
to enable this on a real board without much effort, but that is also the
subject of a future series.
Simon Glass [Fri, 21 Oct 2022 00:23:15 +0000 (18:23 -0600)]
sandbox: Add an image for VPL
Use binman to build an image which includes all the U-Boot phases so that
a full VBE boot can take place with just that image.bin file. Attach the
image file to mmc2 so it can be loaded.
VBE is used to load images in two phases:
- In VPL, VBE decides which SPL image to load
- In SPL, VBE decides which U-Boot image to load
The latter should really be determined by VPL, since it does the full
signature verification on the selected configuration. However, we have
separate configurations for SPL and U-Boot proper, so for now we keep it
simple and have SPL do its own verification. This will need to be
tidied up later.
Simon Glass [Fri, 21 Oct 2022 00:23:14 +0000 (18:23 -0600)]
vbe: Add info about the VBE device to the fwupd node
At present we put the driver in the /chosen node in U-Boot. This is a bit
strange, since U-Boot doesn't normally use that node itself. It is better
to put it under the bootstd node.
To make this work we need to copy create the node under /chosen when
fixing up the device tree. Copy over all the properties so that fwupd
knows what to do.
Simon Glass [Fri, 21 Oct 2022 00:23:13 +0000 (18:23 -0600)]
vbe: Add Kconfig options for VPL
Enable the various features needed in VPL, by adding Kconfig options.
Update the defconfig for sandbox_vpl so that the build for each phase
includes what is needed. Drop LZMA for now and make sure partition support
is omitted in SPL, since it is not needed.
projects / u-boot.git / log