serial: core: Add big-endian iotype

Since most drivers interpret UPIO_MEM32 to mean "little-endian" and use
readl/writel to access the registers, add a parallel UPIO_MEM32BE to
request the use of big-endian MMIO accessors (ioread32be/iowrite32be).

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 5c8b8f50f787..57ca61b14670 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2153,6 +2153,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
                 break;
         case UPIO_MEM:
         case UPIO_MEM32:
+        case UPIO_MEM32BE:
         case UPIO_AU:
         case UPIO_TSI:
                 snprintf(address, sizeof(address),
@@ -2796,6 +2797,7 @@ int uart_match_port(struct uart_port *port1, struct uart_port *port2)
                        (port1->hub6   == port2->hub6);
         case UPIO_MEM:
         case UPIO_MEM32:
+        case UPIO_MEM32BE:
         case UPIO_AU:
         case UPIO_TSI:
                 return (port1->mapbase == port2->mapbase);