Jinjian Song
82ed9780a0
BugLink: https://bugs.launchpad.net/bugs/2049358 On early detection of wwan device in fastboot mode, driver sets up CLDMA0 HW tx/rx queues for raw data transfer and then create fastboot port to userspace. Application can use this port to flash firmware and collect core dump by fastboot protocol commands. E.g., flash firmware through fastboot port: - "download:%08x": write data to memory with the download size. - "flash:%s": write the previously downloaded image to the named partition. - "reboot": reboot the device. Link: https://android.googlesource.com/platform/system/core/+/refs/heads/main/fastboot/README.md Signed-off-by: Jinjian Song <jinjian.song@fibocom.com> Signed-off-by: David S. Miller <davem@davemloft.net> (cherry picked from commit 2dac6381c3da50d4b2525fd0514e41e8041ad974) Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com> Acked-by: Tim Gardner <tim.gardner@canonical.com> Acked-by: Timo Aaltonen <tjaalton@ubuntu.com> Acked-by: Andrei Gherzan <andrei.gherzan@canonical.com> Signed-off-by: Stefan Bader <stefan.bader@canonical.com>