[PATCH 3/4] ARM: davinci: da850: do not specify clock_frequency for UART DT node

Manjunathappa, Prakash prakash.pm at ti.com
Tue Apr 9 22:31:03 EST 2013


DT kernel on da850-evm comes up with garbled UART logs. This is because
of mismatch in actual module clock rate and rate specified(clock-frequency)
in DT blob. kernel should not assume or depend on bootloaders clock
configuration, instead let it find the clock rate at runtime.

Issue discussed here before arriving on this implementation:
"ARM: davinci: da850 evm: update clock rate for UART 1/2 DT nodes"
https://patchwork.kernel.org/patch/2162271/

Signed-off-by: Manjunathappa, Prakash <prakash.pm at ti.com>
---
 arch/arm/boot/dts/da850.dtsi |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 3ec1bda..4498375 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -66,7 +66,6 @@
 		serial0: serial at 1c42000 {
 			compatible = "ns16550a";
 			reg = <0x42000 0x100>;
-			clock-frequency = <150000000>;
 			reg-shift = <2>;
 			interrupts = <25>;
 			status = "disabled";
@@ -74,7 +73,6 @@
 		serial1: serial at 1d0c000 {
 			compatible = "ns16550a";
 			reg = <0x10c000 0x100>;
-			clock-frequency = <150000000>;
 			reg-shift = <2>;
 			interrupts = <53>;
 			status = "disabled";
@@ -82,7 +80,6 @@
 		serial2: serial at 1d0d000 {
 			compatible = "ns16550a";
 			reg = <0x10d000 0x100>;
-			clock-frequency = <150000000>;
 			reg-shift = <2>;
 			interrupts = <61>;
 			status = "disabled";
-- 
1.7.4.1



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