diff options
| author | Kevin Cernekee <cernekee@gmail.com> | 2015-04-09 13:05:18 -0700 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2015-04-14 19:35:45 -0500 |
| commit | ebc5e20082160df384dedbe1c95066c3e545b689 (patch) | |
| tree | 3d81fb76b1fde7b1d0764e2caa149ab933b66c2a /drivers/tty | |
| parent | c627f2ceb692e8a9358b64ac2d139314e7bb0d17 (diff) | |
serial: of_serial: Support big-endian register accesses
If the device node has a "big-endian" property and 32-bit registers, tell
the serial driver to use UPIO_MEM32BE instead of UPIO_MEM32.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/of_serial.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c index 33fb94f78967..e15c443b2a3c 100644 --- a/drivers/tty/serial/of_serial.c +++ b/drivers/tty/serial/of_serial.c @@ -115,7 +115,8 @@ static int of_platform_serial_setup(struct platform_device *ofdev, port->iotype = UPIO_MEM; break; case 4: - port->iotype = UPIO_MEM32; + port->iotype = of_device_is_big_endian(np) ? + UPIO_MEM32BE : UPIO_MEM32; break; default: dev_warn(&ofdev->dev, "unsupported reg-io-width (%d)\n", |