| Commit message (Collapse) | Author | Age | Files | Lines |
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55da0cf1 ("efi: add support for initrd loading") introduced support for
the Linux v3.6+ handover protocol[1]. As part of this change a x86 cli
(Clear Interrupt Flag) instruction was introduced just prior to the jump
into the kernel's EFI handover protocol entry point.
While the normal Linux x86 boot protocols require that interrupts are
masked on entry, this doesn't apply to the EFI stub, because the EFI
stub itself is the one implementing the boot protocol and as such
masks the interrupts itself[2].
EFI watchdogs may, and often are, implemented using a timer interrupt.
Dropping the cli will allow monitoring the boot of the kernel up to it
calling ExitBootServices.
In absence of a hardware watchdog, this is the only watchdog available
to users with EFI 1.0+, so it seems prudent to not make it even more
useless.
[1]: https://www.kernel.org/doc/Documentation/x86/boot.txt
[2]: Linux v5.4-rc4, arch/x86/boot/compressed/eboot.c
Cc: Michael Olbrich <mol@pengutronix.de>
Fixes: 55da0cf1 ("efi: add support for initrd loading")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The UEFI specification paragraph quoted above notes:
> The watchdog timer is only used during boot services. On successful
> completion of ExitBootServices() the watchdog timer is disabled.
Thus disabling the watchdog is _the_ only proper behavior. Adjust the
wording accordingly.
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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this error happens in sandbox with simple console, sandbox
has ARCH_HAS_CTRLC enabled by default
$ make sandbox_defconfig
$ make menuconfig
(select CONFIG_SHELL_SIMPLE)
$ make
LD barebox
common/built-in.o: In function `__pr_memory_display':
/home/du/source/barebox/common/memory_display.c:117: undefined reference to `ctrlc'
common/built-in.o: In function `run_init':
/home/du/source/barebox/common/startup.c:317: undefined reference to `console_ctrlc_allow'
common/built-in.o: In function `parse_stream_outer':
/home/du/source/barebox/common/hush.c:1742: undefined reference to `ctrlc'
common/built-in.o: In function `run_list_real':
/home/du/source/barebox/common/hush.c:895: undefined reference to `ctrlc'
common/built-in.o: In function `run_shell':
/home/du/source/barebox/common/hush.c:1940: undefined reference to `ctrlc_handled'
Signed-off-by: DU HUANPENG <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This reverts a hunk I missed after a rebase:
A previous commit restricts ARCH_BAREBOX_MAX_BARE_INIT to only
non-multi-image boards, so no need to touch it to be compatible
with the new multi-image changes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Change USB port scanning procedure and timeout handling in the
following ways:
1)
The power-on delay in usb_hub_power_on() is now reduced to a value of
max(100ms, "hub->desc.bPwrOn2PwrGood * 2"). The code does not wait
using mdelay, instead usb_hub_power_on() will wait before querying
the device in the scanning loop later. The total connection timeout for
this hub, which is (1 second + hub->desc.bPwrOn2PwrGood * 2) is
calculated and will be used in the following per-port scanning loop as
the timeout to detect active USB devices on this hub.
2)
Don't delay the minimum delay (for power to stabilize) in
usb_hub_power_on(). Instead skip querying these devices in the scanning
loop usb_scan_port() until the delay time is reached.
3)
The ports are now scanned in a quasi parallel way. The current code did
wait for each (unconnected) port to reach its timeout and only then
continue with the next port. This patch now changes this to scan all
ports of all USB hubs quasi simultaneously. For this, all ports are added
to a scanning list in usb_hub_configure_ports(). The list is later scanned
in usb_device_list_scan() until all ports are ready by either a) reaching
the connection timeout (calculated earlier), or by b) detecting a USB
device. This results in a faster USB scan time as the recursive scanning
of USB hubs connected to the hub that's currently being scanned will
start earlier.
4)
Ports with overcurrent detection will get scanned multiple times if OC
condition is detected (PORT_OVERCURRENT_MAX_SCAN_COUNT).
Without patch:
$ time usb
usb: USB: scanning bus for devices...
usb: 17 USB Device(s) found
time: 10344ms
With patch:
$ time usb
usb: USB: scanning bus for devices...
usb: 17 USB Device(s) found
time: 4529ms
Delta: ~6 seconds
Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Remove two mdelay(200) calls from usb_hub_port_connect_change() before
and after calling hub_port_reset().
These delays don't seem to be necessary since hub_port_reset() already
incorporates delays on its own.
Without patch:
$ time usb
usb: USB: scanning bus for devices...
usb: 17 USB Device(s) found
time: 16355ms
With patch:
$ time usb
usb: USB: scanning bus for devices...
usb: 17 USB Device(s) found
time: 10344ms
Delta: ~6 seconds
Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Start with a short USB hub reset delay of 20ms. This can be enough for
some configurations. Switch to longer reset delay only if the short
delay hasn't been long enough.
This USB hub reset handling strategy is also used in the Linux kernel
USB hub driver, function hub_port_reset().
Without patch:
$ time usb
usb: USB: scanning bus for devices...
usb: 17 USB Device(s) found
time: 21750ms
With patch:
$ time usb
usb: USB: scanning bus for devices...
usb: 17 USB Device(s) found
time: 16355ms
Delta: ~5.5 seconds
Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The compiled-in keys can be retrieved with rsa_get_key(). Try to use
them first before falling back to looking up the keys in the device
tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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So far we relied on the U-Boot mkimage tool to generate us device tree
snippets containing rsa public keys which we then compiled into barebox.
Make this easier and allow to directly specify a filename or PKCS#11 URI
in Kconfig. With this we no longer need the U-Boot mkimage tool here and
no more external steps to prepare device tree snippets.
With this rsa public keys can be directly compiled as C structs into
barebox which is much more direct than putting it into the device tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Until now rsa_of_read_key() took a pointer to a key and filled the
struct rsa_public_key members with allocated values. So far we have
never freed these values. Change rsa_of_read_key() to always return
a fully allocated key and provide rsa_key_free() to free it. Let the
FIT image code free the key after usage.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The rsatoc tool converts rsa public keys into C structs suitable to
compile with barebox. Most of the openssl rsa related stuff has been
taken from the U-Boot mkimage tool.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The config_filename allows to extract a filename from a Kconfig string
option.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We have many different pointer arrays which we put into linker sections
and each time there's one added we have to adjust all linker scripts.
This adds a common RO_DATA_SECTION define and uses it for all
architectures. This makes it easier to add a new linker array.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The alignment in the DTB and clk_of_table shouldn't be needed. Remove
them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
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We do not seem to need all these alignments in the rodata sections, so
remove them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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No need to repeat the pci fixup sections in each linker script. Add a
define for it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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For the older section defines we specify the start and end addresses
outside the macro which means we have to repeat them in each linker
script. Make the start/end addresses part of the define to simplify
things. While at it, add a BAREBOX_ prefix to the INITCALLS and EXITCALLS
macros for consistency to the other defines.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
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__initcall_entries and __exitcall_entries are unused. Remove them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The BAREBOX_CLK_TABLE and BAREBOX_DTB macros are defines that do not
take a parameter, so we can remove the braces.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We used to store the commands as a linker array. One problem with this
is that on X86_64 for unknown reasons the linker uses a different struct
alignment than the compiler, so when we use the linker to compose the
array and the compiler to iterate over it we have to play tricks with
manually adjusting the alignment. The other problem is that we declare
the commands as const (and also put it in .rodata), but in fact we do
not treat it as const: we put the commands onto a list which modifies
the struct list_head list member of struct command.
With this patch we no longer put the command themselves into an array,
but instead create an array of pointers to the commands. This inherently
solves the second issue as well.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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I tested it on phytec imx7 board with remoteproc ELF image previously used on
Linux. Linux would load this image, create appropriate resource (if defined in
image) and boot it. The barebox version is only loading image and boot it.
Currently barebox version do not extract resources defined by rproc ELF image.
On this early stage it is hard to say, if it is needed.
Previously there was an attempt to port bootaux command from u-boot.
Porting of remoteproc framework is my attempt to lead this topic in to the
(IMO) right direction.
To start remoteproc image, firmwareload command should be used:
firmwareload /mnt/tftp/rproc-imx-rproc-fw
Since firmwareload already support multiple targets, it is possible to
specify which exact cortex m4 CPU should be started (if multiple CPU are
present). This example shows the list of available firmware targets:
barebox@Phytec i.MX7 phyBOARD-Zeta:/ firmwareload -l
firmware programming handlers:
name: model:
soc:imx7d-rp0@0.of
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Some device tree node parsed by of_count_phandle_with_args() have no #*-cells
parameter. To make linux device trees work with barebox, we should accept
cells_name set to NULL, so sync this behavior with linux.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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needed for remoteproc port
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The devicetree overlay driver requires the __symbols__ node to resolve
phandles to the base devicetree. If Barebox has to apply the overlay to
the live devicetree, the build-in devicetree must be built with the
__symbols__ node.
It is configurable, because adding __symbols__ significantly increases
the size of the devicetree binary. When configuring Barebox, a developer
should be able to enable or disable devicetree overlay support and as
this only affects the build-in devicetree, which is linked to the image
anyway, use a Kconfig item for configuring the __symbols__.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add a new command "of_overlay" for applying device tree overlays,
because it does not really fit into any other device tree related
command and would create a mess with the command options.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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If a device tree overlay referenced by the blspec depends on firmware,
try to load the firmware from the default Linux firmware search path
/lib/firmware in the about to be started rootfs.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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fpga-region device tree nodes have the firmware-name property that
contains the file name of firmware in the firmware search path (but not
the path) that shall be loaded before the overlay is applied.
Add the of_firmware_load_overlay() function that accepts an overlay and a
firmware search path, finds the responsible firmware_mgr and loads the
firmware.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Allows to get the firmware manager using a phandle from the devicetree.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Device tree overlays (the dto files) may contain multiple fragments for
different target nodes. Each fragment contains a __overlay__ node that
is applied to target node specified in the fragment.
Add a helper to call a function for each fragment in a device tree
overlay to avoid having device tree overlay internal information in
other modules.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Read the devicetree-overlay property from the blspec entry and register
the overlays when booting the blspec entry.
Do not fail the boot if an overlay cannot be loaded, because if Linux
fails to boot without an overlay, the base device tree is broken.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The devicetree overlay support is based on the Linux driver for device
tree overlays, but many features that are not required in Barebox are
left out.
Unlike Linux, which applies the overlay to the live devicetree, Barebox
registers a fixup for the overlay which is applied with other fixups to
whatever tree is fixed. This is necessary to apply the overlay to
devicetrees that are passed to Linux, which might differ from the
devicetree that is currently live in Barebox.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The of_diff command compares two device trees against each other
and prints a diff-like result. This can be handy to find out the
differences between the barebox live tree and the one we start the
kernel with. Another usecase would be to examine the changes our
of_fixup process introduces (of_diff - +)
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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of_diff compares two device trees against each other and prints a
diff-like result.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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of_get_reproducible_name() returns an allocated string, so we must free
it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Merge the defconfigs for the i.MX23 boards into a common
imx23_defconfig.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Merge the defconfigs for the i.MX28 boards into a common
imx28_defconfig.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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All boards in mach-mxs support multi image, so we no longer have to make
the board type a choice. Let the user compile all boards for a SoC
together. We cannot compile i.MX23 together with i.MX28 though, there
are still many conflicting defines which use the IMX_ namespace which
are really SoC specific.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Now that all boards in mach-mxs select HAVE_PBL_MULTI_IMAGES we can move
it up to ARCH_MXS.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Build the Chumby as multi image.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Build the i.MX23 EVK as multi image.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Build the cfa10036 as multi image.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Check for the right machine type in initcalls before executing them to
make the board multi image safe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Check for the right machine type in initcalls before executing them to
make the board multi image safe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Check for the right machine type in initcalls before executing them to
make the board multi image safe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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