When kwboot_tty_recv() fails or times out, it does not set the `c`
variable to NAK. The variable is then compared, while it holds either
an undefined value or a value from previous iteration. Set `c` to NAK so
that the other side will try to resend current block, and remove the
now unnecessary break.
In other failure cases return immediately.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Print kwboot's (U-Boot's) version when printing usage.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
There are 3 instances in kwboot.c where we need to write() a given
buffer whole (iteratively writing until all data are written), and 2 of
those instances are wrong, for they do not increment the buffer pointer.
Refactor the code into a new function kwboot_write() where it is fixed.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
The `in` variable is set to -1 in kwboot_terminal() if stdin is not a
tty. In this case we should not look whether -1 is set in fd_set, for it
can lead to a buffer overflow, which can be reproduced with
echo "xyz" | ./tools/kwboot -t /dev/ttyUSB0
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Function image_version() returns unsigned value, so it can never be
negative. Explicitly check for two supported image versions: v0 and v1.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Too small invalid headers may cause kwboot to crash.
Check for header size of v1 images.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
Add missing curly brackets for this else statement.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
Print trailing newline as the last printed byte can be something
different.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
Call tcsetattr() only if the file descriptor is valid. It may be
invalidated by previous lines (if it is not a tty descriptor).
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
The 'buf' variable is a pointer and '_buf' is the array itself.
Therefore we should pass sizeof(_buf) instead of sizeof(buf) to read().
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
These structures must have specific size without padding, so mark them as
packed via the de-facto standard macro __packed. Also replace PACKED
macro.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This patch accomplishes 2 things to make the kwboot procedure
on the a38x more reliable.
1) We fill the tty with 1K of the magic bootparam. This helps
with the timing of where the microcode picks up in the read of
the line to ensure we actually catch the break to go into recovery
mode
2) Before starting the xmodem transfer we sleep for 2 seconds
and then flush the line. This allows all the magic bootparam
to be flushed from the line and makes the xmodem transfer reliable
and removes the Bad message failures.
Signed-off-by: Jon Nettleton <jon@solid-run.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
When kwboot is attached to a terminal which disappears such as one
connected via an unplugged USB cable, read() returns 0, making kwboot
loop until a key is pressed in the terminal. The only case where read()
may return 0 here is when the terminal is closed anyway, so let's
properly handle this one and report is similar to other errors.
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
Commit 84899e2 ("tools/kwboot: Sync with latest barebox version to
support Armada XP") accidently broke the terminal-only mode (-t) by
removing the test on the bootmsg. Thus even when trying to use kwboot
as a plain terminal, it asks to reboot the target.
This commit simply reintroduces the lost test so that it is possible
again to use kwboot to attach to the target system's console.
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
Commit 94084eea3b ("tools: kwbimage: Fix dest addr") changed kwbimage
to do this adjustment. So now the adjustment in kwboot is not needed
(and would prevent UART booting for images generated by the new
kwbimage). Remove the destaddr adjustment in kwboot.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Commit f4db6c976c ("arm: mvebu: Add runtime detection of UART (xmodem)
boot-mode") added a change to hdr->destaddr when dynamically patching an
image for UART boot mode. With this change, kwboot ceases to work on
Kirkwood.
Thus, let's change hdr->destaddr only when we are patching an image with
header version 1 (Orion and Kirkwood use header version 0).
Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Fixes: f4db6c976c ("arm: mvebu: Add runtime detection of UART (xmodem) boot-mode")
Cc: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Add command-line specification of xmodem timeout. If the binary
header needs to take a while to do something (e.g. DDR ECC
scrubbing), the xmodem transfer can time out. Add a configurable
xmodem block timeout to allow transfers with slow binary headers
to succeed.
Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
Usage text was getting unwieldy and somewhat incorrect. The
usage summary implied that some options were mutually exclusive
(e.g. -q or -s). Clean up the summary to just include the
important ones, and include a generic "[OPTIONS]" instead.
Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds runtime detection of the Marvell UART boot-mode (xmodem
protocol). If this boot-mode is detected, SPL will return to the
BootROM to continue the UART booting.
With this patch its now possible, to generate a U-Boot image that
can be booted either from the strapped boot-device (e.g. SPI NOR, MMC,
etc) or via the xmodem protocol from the UART. In the UART case,
the kwboot tool will dynamically insert the UART boot-device type
into the image. And also patch the load address in the header, so
that the mkimage header will be skipped (as its not expected by the
Marvell BootROM).
This simplifies the development for Armada XP / 38x based boards.
As no special images need to be generated by selecting the
MVEBU_BOOTROM_UARTBOOT Kconfig option.
Since the Kconfig option MVEBU_BOOTROM_UARTBOOT is not needed any
more, its now completely removed.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
Currently, kwboot only allows dynamic UART boot mode patching for SoCs
with header version 0 (Orion, Kirkwood). This patch now enables this "-p"
feature also for SoCs with header version 1 (Armada XP / 38x etc). With
this its possible now to use the UART boot mode without on images that
are generated for other boot devices, like SPI. So no need to change
BOOT_FROM to "uart" for UART xmodem booting any more.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>
To support the Armada 38x, new values for the request-delay and the
response-timeout are needed. As the values already implemented in
this tool (for Kirkwood and Armada XP) don't seem to work here.
To make this more flexible, lets add make those 2 parameters
configurable via the cmdline. Here the new parameters:
-q <req-delay>: use specific request-delay
-s <resp-timeo>: use specific response-timeout
For the Marvell DB-88F6820 these values are known to work:
One board:
-q 2 -s 1
2nd board:
-q 5 -s 5
So this seems to be even board specific. But with this patch now
those values can be specified and tested via the cmdline.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Luka Perkov <luka.perkov@sartura.hr>
The barebox version of the kwboot tool has evolved a bit. To support
Armada XP and Dove. Additionally a few minor fixes have been applied.
So lets sync with the latest barebox version.
Please note that the main difference between both versions now is, that
the U-Boot version still supports the -p option, to dynamically patch
an image for UART boot mode. I didn't test it now though.
Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Luka Perkov <luka@openwrt.org>
The kwboot program boots boards based on Marvell's Kirkwood platform
via Xmodem over their integrated UART.
Signed-off-by: Daniel Stodden <daniel.stodden@googlemail.com>
Acked-by: Luka Perkov <uboot@lukaperkov.net>
Tested-By: Holger Brunck <holger.brunck@keymile.com>
Tested-By: David Purdy <david.c.purdy@gmail.com>
Tested-by: Simon Guinot <simon.guinot@sequanux.org>
