Hi Frieder, On Thu, 30 Sept 2021 at 10:20, Frieder Schrempf <frie...@fris.de> wrote: > > From: Frieder Schrempf <frieder.schre...@kontron.de> > > Currently 'sf update' supports only offsets that are aligned to the > erase block size of the serial flash. Unaligned offsets result in > something like: > > => sf update ${kernel_addr_r} 0x400 ${filesize} > device 0 offset 0x400, size 0x11f758 > SPI flash failed in erase step
<insert motivation for patch here> > > In order to support unaligned updates, we simply read the first full > block and check only the requested part of the block for changes. If > necessary, the block is erased, the first (unchanged) part of the block > is written back together with the second part of the block (updated data). > > Signed-off-by: Frieder Schrempf <frieder.schre...@kontron.de> > --- > cmd/sf.c | 17 +++++++++++------ > 1 file changed, 11 insertions(+), 6 deletions(-) > Regards, Simon