Re: [U-Boot] [U-Boot, v3, 02/13] ns16550: change map_sysmem to map_physmem

On Thu, Nov 19, 2015 at 09:48:04PM +0800, Thomas Chou 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 thomas@wytron.com.tw Acked-by: Simon Glass sjg@chromium.org

Applied to u-boot/master, thanks!