On Thu, 29 Oct 2020 at 21:20, Heinrich Schuchardt <xypron.g...@gmx.de> wrote: > > Up to now the emulated RTC is initialized using the U-Boot build time. > > With this patch the environment variable 'rtc_emul_epoch' can be used to > provide a better initial time. The variable is a decimal string with > the number of seconds since 1970-01-01. Here is an example where the RTC > had not been probed yet: > > => setenv rtc_emul_epoch 1610109000 > => date > Date: 2021-01-08 (Friday) Time: 12:30:00 > > If the variable does not exist, the U-Boot build time is used as fallback. > > The environment variable may be set when shutting down the operating system > if the U-Boot environment is exposed to the OS (cf. ENV_IS_IN_FAT and > ENV_IS_IN_EXT4). > > Suggested-by: Pablo Sebastián Greco <pgr...@centosproject.org> > Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de> > --- > drivers/rtc/Kconfig | 13 ++++++++----- > drivers/rtc/emul_rtc.c | 16 +++++++++++++--- > 2 files changed, 21 insertions(+), 8 deletions(-)
Reviewed-by: Simon Glass <s...@chromium.org>
