The "fastboot reboot-bootloader" command is defined to
re-enter into fastboot mode after rebooting into
bootloader. This command is usually used after updating
bootloader via fastboot.
This commit implements only a generic side of the
command - setting of the reset flag and then resetting.
Setting of the reset flag is implemented using __weak
fb_set_reboot_flag() function. The actual setting and
checking of the reset flag should be implemented by
a boot script and/or board/SoC specific code.
Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
Tested-by: Steve Rae <srae@broadcom.com>
[Test HW: bcm28155_ap board]
Configure the serial number using the serial# environment variable
during the fastboot bind.
This enables "fastboot devices" to return the serial number for
the attached devices.
Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Acked-by: Steve Rae <srae@broadcom.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
OUT transactions must be aligned to wMaxPacketSize for each transfer,
or else transfer will not complete successfully. This patch modifies
rx_bytes_expected to return a transfer length that is aligned to
wMaxPacketSize.
Note that the value of wMaxPacketSize and ep->maxpacket may not be
the same value, and it is the value of wMaxPacketSize that should be
used for alignment. wMaxPacketSize is passed depending on the speed of
connection.
Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Adds the fastboot erase functionality, to erase a partition
specified by name. The erase is performed based on erase group size,
to avoid erasing other partitions. The start address and the size
is aligned to the erase group size for this.
Currently only supports erasing from eMMC.
Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Add "oem format" command to write partition table. This relies on the
env variable partitions to contain the list of partitions as required by
the gpt command.
Note that this does not erase any data other than the partition table.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Steve Rae <srae@broadcom.com>
Add code stub to handle "fastboot oem __" command. As unlock is a common
fastboot command, distinguish that it is not implemented.
Signed-off-by: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Steve Rae <srae@broadcom.com>
The fastboot continue command is defined to exit fastboot and continue
autoboot. This commit implements the continue command and the exiting of
fastboot only. Subsequent u-boot commands can be processed after exiting
fastboot. Autoboot should implement a boot script such as "fastboot; mmc
read <...>; bootm" to fully implement the fastboot continue function.
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[TestHW: Exynos4412-Trats2]
Without NULL termination, various commands will read past the
end of input. In particular, this was noticed with error()
calls in cb_getvar and simple_strtoul() in cb_download.
Since the download callback happens elsewhere, the 4k buffer
should always be sufficient to handle command arguments.
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
The processing of the max-download-size variable requires a
radix specifier, or the fastboot host tool will interpret
it as an octal number.
See function get_target_sparse_limit() in file fastboot/fastboot.c
in the AOSP:
https://android.googlesource.com/platform/system/core/+/master
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Current Android Fastboot seems to use 'max-download-size' instead
of 'downloadsize' variable to indicate the maximum size of sparse
segments.
See function get_target_sparse_limit() in file fastboot/fastboot.c
in the AOSP:
https://android.googlesource.com/platform/system/core/+/master
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
When download is ongoing, if the actual size of one transfer
is not the same as BYTES_PER_DOT, which will cause the dot
won't print anymore. Then it will let the user thinking it
is stuck, actually it is transfering without dot printed.
So, improve the method to show the progress bar (print dot).
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Marek Vasut <marex@denx.de>
- update static function
- additional debugging statements
- update "fastboot command" information
- add missing include file
- update spelling
Signed-off-by: Steve Rae <srae@broadcom.com>
- implement 'fastboot flash' for eMMC devices
Signed-off-by: Steve Rae <srae@broadcom.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Marek Vasut <marex@denx.de>
cb_getvar tries to prevent overflowing the response buffer
by using strncat. But strncat takes the number of data bytes
copied as a limit not the total buffer length so it can still
overflow. Pass the correct value instead.
cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
cc: Rob Herring <robh@kernel.org>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
This patch contains an implementation of the fastboot protocol on the
device side and documentation. This is based on USB download gadget
infrastructure. The fastboot function implements the getvar, reboot,
download and reboot commands. What is missing is the flash handling i.e.
writting the image to media.
v3 (Rob Herring):
This is based on http://patchwork.ozlabs.org/patch/126798/ with the
following changes:
- Rebase to current mainline and updates for current gadget API
- Use SPDX identifiers for licenses
- Traced the history and added missing copyright to cmd_fastboot.c
- Use load_addr/load_size for transfer buffer
- Allow vendor strings to be optional
- Set vendor/product ID from config defines
- Allow Ctrl-C to exit fastboot mode
v4:
- Major re-write to use the USB download gadget. Consolidated function
code to a single file.
- Moved globals into single struct.
- Use puts and putc as appropriate.
- Added CONFIG_USB_FASTBOOT_BUF_ADDR and CONFIG_USB_FASTBOOT_BUF_SIZE to
set the fastboot transfer buffer.
v5:
- Add CONFIG option documentation to README
- Rebase using new downloader registration
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
