From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Cernekee Subject: [PATCH V4 5/5] serial: of_serial: Support big-endian register accesses Date: Thu, 9 Apr 2015 13:05:18 -0700 Message-ID: <1428609918-10290-6-git-send-email-cernekee@gmail.com> References: <1428609918-10290-1-git-send-email-cernekee@gmail.com> Return-path: In-Reply-To: <1428609918-10290-1-git-send-email-cernekee@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: gregkh@linuxfoundation.org, jslaby@suse.cz, robh@kernel.org, grant.likely@linaro.org Cc: arnd@arndb.de, peter@hurleysoftware.com, f.fainelli@gmail.com, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org 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 --- drivers/tty/serial/of_serial.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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", -- 2.2.2