[U-Boot] [PATCH] ns16550: change reg-shift property default to zero

[Thomas Chou]

Change reg-shift property default to zero. When the integer property
is missing, it should be taken as zero. This is consistent to Linux
drivers/tty/serial/of_serial.c.

The x86 and most powerpc use reg-shift of 0. Most others use reg-shift
of 2. While reg-shift of 1 is rarely used.

Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
---
 drivers/serial/ns16550.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index d5bcbc3..5b64f7c 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -403,7 +403,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
 
 	plat->base = addr;
 	plat->reg_shift = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
-					 "reg-shift", 1);
+					 "reg-shift", 0);
 	plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
 				     "clock-frequency",
 				     CONFIG_SYS_NS16550_CLK);
-- 
2.5.0