8250: switch 8250 drivers to use _nocache ioremaps

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index ea41f2626458..a1ca9b7bf2d5 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2271,7 +2271,8 @@ static int serial8250_request_std_resource(struct uart_8250_port *up)
                 }
 
                 if (up->port.flags & UPF_IOREMAP) {
-                        up->port.membase = ioremap(up->port.mapbase, size);
+                        up->port.membase = ioremap_nocache(up->port.mapbase,
+                                                                        size);
                         if (!up->port.membase) {
                                 release_mem_region(up->port.mapbase, size);
                                 ret = -ENOMEM;