Hello Markus,
Am 15.05.2019 um 15:15 schrieb Markus Klotzbuecher:
From: Hamish Guthrie hamish.guthrie@kistler.com
The motivation is to use the UBI atomic volume rename functionality to allow double copy software updates on UBI. To that end the SPL is configured to always load the same volume name (e.g. "u-boot"), whereas a software updater always installs into the secondary volume "u-boot_r". After successful installation, these two volume names are switched.
This extension is protected by #ifdefs as it will somewhat slow down loading of volumes by id. This is because the code needs to disable the optimization of ignoring all volume ids which are not to-be-loaded, since these can only be resolved after attaching.
This adds two vtbl related functions from Linux, which are taken from the same kernel version as the current main U-Boot UBI code (Linux 4.2 64291f7db5bd8).
Signed-off-by: Hamish Guthrie hamish.guthrie@kistler.com Signed-off-by: Markus Klotzbuecher markus.klotzbuecher@kistler.com Reviewed-by: Heiko Schocher hs@denx.de Cc: Kyungmin Park kmpark@infradead.org
Changes for v2:
indicate version of Kernel from which code was copied
common/spl/Kconfig | 13 +++ common/spl/spl_ubi.c | 7 ++ drivers/mtd/ubispl/ubispl.c | 215 +++++++++++++++++++++++++++++++++++- drivers/mtd/ubispl/ubispl.h | 7 ++ include/ubispl.h | 6 + 5 files changed, 246 insertions(+), 2 deletions(-)
Thanks!
Travis buils is fine, pushed to u-boot-ubi.git next
bye, Heiko