Ideally in common SoC dtsi file we should set all modules to "disabled" state and it should get enabled in respective EVM/Board dts file as per usage.
This patch sets default status of all modules to "disabled" state in am33xx.dtsi file, and as per board requirement, enabled in board dts file (like, bone, evm, etc...). Signed-off-by: Vaibhav Hiremath <[email protected]> Cc: Benoit Cousson <[email protected]> Cc: Grant Likely <[email protected]> Cc: Arnd Bergmann <[email protected]> CC: Tony Lindgren <[email protected]> --- This patch is tested on BeagleBone platform. arch/arm/boot/dts/am335x-bone.dts | 6 ++++++ arch/arm/boot/dts/am335x-evm.dts | 6 ++++++ arch/arm/boot/dts/am33xx.dtsi | 9 +++++++++ 3 files changed, 21 insertions(+), 0 deletions(-) diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts index a9af4db..df672b4 100644 --- a/arch/arm/boot/dts/am335x-bone.dts +++ b/arch/arm/boot/dts/am335x-bone.dts @@ -17,4 +17,10 @@ device_type = "memory"; reg = <0x80000000 0x10000000>; /* 256 MB */ }; + + ocp { + uart1: serial@44E09000 { + status = "okay"; + }; + }; }; diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index d6a97d9..00bbae8 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -17,4 +17,10 @@ device_type = "memory"; reg = <0x80000000 0x10000000>; /* 256 MB */ }; + + ocp { + uart1: serial@44E09000 { + status = "okay"; + }; + }; }; diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 59509c4..5f6c8e3 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -102,36 +102,42 @@ compatible = "ti,omap3-uart"; ti,hwmods = "uart1"; clock-frequency = <48000000>; + status = "disabled"; }; uart2: serial@48022000 { compatible = "ti,omap3-uart"; ti,hwmods = "uart2"; clock-frequency = <48000000>; + status = "disabled"; }; uart3: serial@48024000 { compatible = "ti,omap3-uart"; ti,hwmods = "uart3"; clock-frequency = <48000000>; + status = "disabled"; }; uart4: serial@481A6000 { compatible = "ti,omap3-uart"; ti,hwmods = "uart4"; clock-frequency = <48000000>; + status = "disabled"; }; uart5: serial@481A8000 { compatible = "ti,omap3-uart"; ti,hwmods = "uart5"; clock-frequency = <48000000>; + status = "disabled"; }; uart6: serial@481AA000 { compatible = "ti,omap3-uart"; ti,hwmods = "uart6"; clock-frequency = <48000000>; + status = "disabled"; }; i2c1: i2c@44E0B000 { @@ -139,6 +145,7 @@ #address-cells = <1>; #size-cells = <0>; ti,hwmods = "i2c1"; + status = "disabled"; }; i2c2: i2c@4802A000 { @@ -146,6 +153,7 @@ #address-cells = <1>; #size-cells = <0>; ti,hwmods = "i2c2"; + status = "disabled"; }; i2c3: i2c@4819C000 { @@ -153,6 +161,7 @@ #address-cells = <1>; #size-cells = <0>; ti,hwmods = "i2c3"; + status = "disabled"; }; }; }; -- 1.7.0.4 _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
