On 19 November 2015 at 06:48, Thomas Chou <tho...@wytron.com.tw> wrote: > Change map_sysmem() to map_physmem(,,MAP_NOCACHE). Though map_sysmem() > can be used to map system memory, it might be wrong to use it for I/O > ports. The map_physmem() serves the same purpose to translate physical > address to virtual address with the additional flag to take care of cache > property. Most drivers use map_physmem() since I/O ports access should be > uncached. As ns16550 is a driver, it should use map_physmem() rather > than map_sysmem(). > > Signed-off-by: Thomas Chou <tho...@wytron.com.tw> > --- > drivers/serial/ns16550.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-)
Acked-by: Simon Glass <s...@chromium.org> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
