From 3a64845e9d52d77b711b36a282e36f637f33d66b Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 28 Sep 2015 16:17:47 +0530
Subject: [PATCH] drivers: serial: serial_omap: populate default clock
frequency when not found in dt
In some platforms like am437x, serial node is not populated with
clock-frequency node. So in that case have a default clock-clock
frequency.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
---
drivers/serial/serial_omap.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/serial/serial_omap.c b/drivers/serial/serial_omap.c
index e8d544f0da..9709444489 100644
--- a/drivers/serial/serial_omap.c
+++ b/drivers/serial/serial_omap.c
@@ -12,6 +12,8 @@
DECLARE_GLOBAL_DATA_PTR;
+#define DEFAULT_CLK_SPEED 48000000 /* 48Mhz */
+
#if CONFIG_IS_ENABLED(OF_CONTROL)
static const struct udevice_id omap_serial_ids[] = {
{ .compatible = "ti,omap3-uart" },
@@ -28,7 +30,7 @@ static int omap_serial_ofdata_to_platdata(struct udevice *dev)
if (ret)
return ret;
plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
- "clock-frequency", -1);
+ "clock-frequency", DEFAULT_CLK_SPEED);
plat->reg_shift = 2;
return 0;
--
2.39.5