From: "J.D. Schroeder" <jay.schroeder@xxxxxxxxxx>
This commit updates the OSC_32K_CLK (secure_32k_clk_src_ck) frequency
from the precise 32kHz frequency (i.e., 32.768 kHz) to a more
accurate frequency of ~34.6 kHz. Actual measured frequencies of the
clock vary from processor to processor anywhere from 34.4 kHz up to
34.8 kHz. Note that the ~34 kHz frequency clock is generated
internally by the processor, not an input to the processor. This
change makes it more clear that the consumer of the
secure_32k_clk_src_ck will not get a precise 32.768 kHz frequency
output.
Signed-off-by: J.D. Schroeder <jay.schroeder@xxxxxxxxxx>
Reviewed-by: Trenton Andres <trenton.andres@xxxxxxxxxx>
---
arch/arm/boot/dts/dra7xx-clocks.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index 3f0c61d..f7ec976 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -95,7 +95,7 @@
secure_32k_clk_src_ck: secure_32k_clk_src_ck {
#clock-cells = <0>;
compatible = "fixed-clock";
- clock-frequency = <32768>;
+ clock-frequency = <34600>; /* approximate frequency */
};
sys_clk32_crystal_ck: sys_clk32_crystal_ck {
--
1.9.1
--
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