On Sat, Mar 12, 2016 at 1:06 PM, Simon Glass <s...@chromium.org> wrote: > At present on x86 machines with use cache-as-RAM, the memory goes away just > before board_init_r() is called. This means that serial drivers are > no-longer unavailable, until initr_dm() it called, etc. > > Any attempt to use printf() within this period will cause a hang. > > To fix this, mark the serial devices as 'unavailable' when it is no-longer > available. Bring it back when serial_initialize() is called. This means that > the debug UART will be used instead for this period. > > Signed-off-by: Simon Glass <s...@chromium.org> > --- > > Changes in v2: > - Simplify the code in serial_initialize() > > common/board_f.c | 7 +++++++ > drivers/serial/serial-uclass.c | 2 +- > 2 files changed, 8 insertions(+), 1 deletion(-) >
Reviewed-by: Bin Meng <bmeng...@gmail.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
