Hi Stefan, On 1 March 2017 at 03:23, Stefan Roese <s...@denx.de> wrote: > This patch adds a call to dm_pre_os_remove() to announce_and_cleanup() > so that drivers that have the flag DM_FLAG_PRE_OS_REMOVE set may do > some last-stage cleanup before the OS is started. > > Signed-off-by: Stefan Roese <s...@denx.de> > Cc: Simon Glass <s...@chromium.org> > --- > arch/arm/lib/bootm.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c > index 8125cf023f..84f3415c1e 100644 > --- a/arch/arm/lib/bootm.c > +++ b/arch/arm/lib/bootm.c > @@ -91,6 +91,14 @@ static void announce_and_cleanup(int fake) > > board_quiesce_devices(); > > + /* > + * Call remove function of all devices with the pre-OS remove flag > + * set (DM_FLAG_PRE_OS_REMOVE). This may be useful for last-stage > + * operations, like cancelling of DMA operation or releasing device > + * internal buffers. > + */ > + dm_pre_os_remove();
In a full DM world we could perhaps have devices which use the DMA uclass, so we can tell which ones need to be removed. How about dm_remove_dma_devices()? > + > cleanup_before_linux(); > } > > -- > 2.12.0 > Also (once we have things figured out) this needs some sort of test in test/. Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/listinfo/u-boot
