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authorMugunthan V N <mugunthanvnm@ti.com>2015-09-28 16:17:47 +0530
committerTom Rini <trini@konsulko.com>2015-10-22 14:43:58 -0400
commit3a64845e9d52d77b711b36a282e36f637f33d66b (patch)
tree5e96eaa86bb1fa1e3f90bd72cf22732bf55e55f8 /drivers
parent1778d7f3e65b2401455c872273a34900b3caab67 (diff)
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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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/serial/serial_omap.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/serial/serial_omap.c b/drivers/serial/serial_omap.c
index e8d544f..9709444 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;