* ! Behavior change !
Old behavior: If the Reset button is held down during power-on
do factory reset and try booting recovery from TFTP forever.
If valid recovery is received via TFTP, write it to flash and boot.
New behavior: If the Reset button is held down during power-on
do factory reset, then try TFTP *once*, then try booting on-flash
recovery, then keep trying via TFTP forever until a valid image is
received.
Only if there is no bootable recovery stored on flash, store the
downloaded recovery. Then boot it.
* Set loadaddr to 0x48000000 in order to allow booting images larger
than ~47MB (reported by Oskari Lemmelä). Setting loadaddr to
0x48000000 gives us 384MB on devices with 512MB RAM, which should be
more than enough as a maximum size for uImage.FIT to be loaded.
* Widely unify device-specific default environment in preparation to
auto-generate it from parameters.
* backport upstream commit fixing MBR/DOS partitioning
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Add support for pstore/ramoops now that DRAM content is preserved
over reboot on MT7622. On each boot, check pstore and boot to recovery
image in case there are records stored in it.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
mtd erase needs to be aligned with erase blocks. Use padded image size
for erasing the production volume.
As the environment grew above the current size of 0x1000 bytes by
introducing the new padding function, increase the env size to 0x4000.
While at it, clean up reset button function to work to more reliable on
that board.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Erase firmware ereas before writing to recovery or production partition
when updating them via the bootloader menu.
Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Add U-Boot build for the Ubiquiti Networks UniFi 6 LR access point.
This allows updating the bootchain to modern ARM Trusted Firmware 2.4
and U-Boot 2021.04 while keeping as much of the existing flash layout
as possible (u-boot-env, factory and eeprom partitions are retained),
gaining robust recovery vs. production dual-boot mechanism.
Add info for the Winbond W25Q512JV SPI NOR flash used in the device
and wait for GPIOs to settle after reset before checking for reset
button.
I2C connected LED controller is not supported yet.
Writing large amounts of data to SPI flash currently doesn't work due
to watchdog timeout causing reset before data write completes.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
