[U-Boot] [PATCH] drivers: serial: lpuart: Enable Little Endian Support

[Vabhav Sharma]

By default LPUART driver with compatible string "fsl,ls1021a-lpuart"
support big-endian mode.On NXP SoC like LS1028A LPUART IP is
little-endian,Added support to Fetch LPUART IP Endianness from lpuart
device-tree node.

Signed-off-by: Vabhav Sharma <vabhav.sharma at nxp.com>
---
 drivers/serial/serial_lpuart.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
index a357b00..57dd4a7 100644
--- a/drivers/serial/serial_lpuart.c
+++ b/drivers/serial/serial_lpuart.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
+ * Copyright 2019 NXP
  * Copyright 2013 Freescale Semiconductor, Inc.
  */
 
@@ -502,6 +503,9 @@ static int lpuart_serial_ofdata_to_platdata(struct udevice *dev)
 	plat->reg = (void *)addr;
 	plat->flags = dev_get_driver_data(dev);
 
+	if (fdtdec_get_bool(blob, node, "little-endian"))
+		plat->flags &= ~LPUART_FLAG_REGMAP_ENDIAN_BIG;
+
 	if (!fdt_node_check_compatible(blob, node, "fsl,ls1021a-lpuart"))
 		plat->devtype = DEV_LS1021A;
 	else if (!fdt_node_check_compatible(blob, node, "fsl,imx7ulp-lpuart"))
-- 
2.7.4