[PATCH 3/3] ARM: omap: pass minimal SoC/board data for UART from dt
From: Rob Herring <hidden>
Date: 2011-11-17 01:04:27
Also in:
linux-devicetree, linux-omap, linux-serial
On 11/16/2011 05:02 AM, Rajendra Nayak wrote:
quoted hunk ↗ jump to hunk
Pass minimal data needed for console boot, from dt, for OMAP4 panda/sdp and OMAP3 beagle boards, and get rid of the static initialization from generic board file. Signed-off-by: Rajendra Nayak <redacted> --- arch/arm/boot/dts/omap3-beagle.dts | 17 +++++++++++++++++ arch/arm/boot/dts/omap3.dtsi | 27 +++++++++++++++++++++++++++ arch/arm/boot/dts/omap4-panda.dts | 17 +++++++++++++++++ arch/arm/boot/dts/omap4-sdp.dts | 17 +++++++++++++++++ arch/arm/boot/dts/omap4.dtsi | 24 ++++++++++++++++++++++++ arch/arm/mach-omap2/board-generic.c | 1 - 6 files changed, 102 insertions(+), 1 deletions(-)diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts index 9486be6..4c8f11e 100644 --- a/arch/arm/boot/dts/omap3-beagle.dts +++ b/arch/arm/boot/dts/omap3-beagle.dts@@ -27,3 +27,20 @@ reg = <0x80000000 0x20000000>; /* 512 MB */ }; }; + +&uart1 { + clock-frequency = <48000000>; +}; + +&uart2 { + clock-frequency = <48000000>; +}; + +&uart3 { + ti,console_hwmod; + clock-frequency = <48000000>; +}; + +&uart4 { + clock-frequency = <48000000>; +};diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi index d202bb5..ea591c5 100644 --- a/arch/arm/boot/dts/omap3.dtsi +++ b/arch/arm/boot/dts/omap3.dtsi@@ -13,6 +13,13 @@ / { compatible = "ti,omap3430", "ti,omap3"; + aliases { + uart1 = &uart1; + uart2 = &uart2; + uart3 = &uart3; + uart4 = &uart4; + }; + cpus { cpu at 0 { compatible = "arm,cortex-a8";@@ -59,5 +66,25 @@ interrupt-controller; #interrupt-cells = <1>; }; + + uart1: uart at 1 {
Use the generic name serial and the address: uart1: serial at 1234abcd
quoted hunk ↗ jump to hunk
+ compatible = "ti,omap-uart"; + ti,hwmods = "uart1"; + }; + + uart2: uart at 2 { + compatible = "ti,omap-uart"; + ti,hwmods = "uart2"; + }; + + uart3: uart at 3 { + compatible = "ti,omap-uart"; + ti,hwmods = "uart3"; + }; + + uart4: uart at 4 { + compatible = "ti,omap-uart"; + ti,hwmods = "uart4"; + }; }; };diff --git a/arch/arm/boot/dts/omap4-panda.dts b/arch/arm/boot/dts/omap4-panda.dts index c702657..aa65449 100644 --- a/arch/arm/boot/dts/omap4-panda.dts +++ b/arch/arm/boot/dts/omap4-panda.dts@@ -27,3 +27,20 @@ reg = <0x80000000 0x40000000>; /* 1 GB */ }; }; + +&uart1 { + clock-frequency = <48000000>; +}; + +&uart2 { + clock-frequency = <48000000>; +}; + +&uart3 { + ti,console_hwmod; + clock-frequency = <48000000>; +}; + +&uart4 { + clock-frequency = <48000000>; +};diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts index 066e28c..524f5bf 100644 --- a/arch/arm/boot/dts/omap4-sdp.dts +++ b/arch/arm/boot/dts/omap4-sdp.dts@@ -27,3 +27,20 @@ reg = <0x80000000 0x40000000>; /* 1 GB */ }; }; + +&uart1 { + clock-frequency = <48000000>; +}; + +&uart2 { + clock-frequency = <48000000>; +}; + +&uart3 { + ti,console_hwmod; + clock-frequency = <48000000>; +}; + +&uart4 { + clock-frequency = <48000000>;
It doesn't seem that this frequency ever varies and is likely to be replaced with clock bindings, so maybe just put it in the dtsi files. Rob